3-D GEOPHYSICAL INC
8-K, 1997-03-27
OIL & GAS FIELD EXPLORATION SERVICES
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549



                                    FORM 8-K

                                 CURRENT REPORT

     PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934




Date of Report (Date of earliest event reported)          January 27, 1997
                                                 -------------------------------



                              3-D GEOPHYSICAL, INC.
- --------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)


       Delaware                       0-27564                    13-3841601
- --------------------------------------------------------------------------------
(State or other Jurisdiction        (Commission                 (IRS Employer
    of incorporation)               File Number)             Identification No.)



           7076 South Alton Way, Building H, Englewood, Colorado 80112
- --------------------------------------------------------------------------------
               (Address of principal executive offices) (Zip Code)


Registrant's telephone number, including area code:  (303) 290-0214
                                                    ----------------------------


- --------------------------------------------------------------------------------
         (Former name or former address, if changed since last report.)


<PAGE>

ITEM 2.  ACQUISITION OR DISPOSITION OF ASSETS.

         On January 27, 1997,  the  Registrant  completed the purchase of J.R.S.
Exploration  Company Limited ("J.R.S.  Exploration"),  a land-based seismic data
acquisition business headquartered in Calgary,  Alberta, Canada. Under the terms
of the  acquisition,  the Registrant  acquired all of the issued and outstanding
shares of capital stock of the  intermediate  holding  companies that own all of
the issued and outstanding capital stock of J.R.S. Exploration for C$3.5 million
(U.S.$2.6 million) in cash and 279,166 shares of the Registrant's  Common Stock,
par value $.01 per share ("Common  Stock").  In addition the  Registrant  repaid
approximately  C$1.8 million (U.S.$1.3 million) of debt J.R.S.  Exploration owed
to a commercial  bank. Also under the terms of the acquisition,  Messrs.  Donald
Janveau and W. Garnet Mueller, the principal stockholders and executive officers
of J.R.S.  Exploration,  entered  into  three-year  employment  agreements  (the
"Employment  Agreements") with J.R.S.  Exploration pursuant to which Mr. Janveau
serves as President and Chief  Executive  Officer of J.R.S.  Exploration and Mr.
Mueller  serves as Vice  President  of  Operations  of J.R.S.  Exploration.  The
Employment   Agreements   each  provide  for  an  annual   salary  of  C$150,000
(U.S.$110,000).  In connection with the Employment  Agreements,  each of Messrs.
Janveau and Mueller  entered  into a five-year  covenant not to compete with the
Registrant  or  any  of  its  subsidiaries  in the  provision  of  seismic  data
acquisition or analysis services or any services related thereto.

         In  connection  with  the  acquisition  of  J.R.S.   Exploration,   the
Registrant  also  acquired all of the issued and  outstanding  capital  stock of
Siegfried & Siegfried  Ltd.,  an Alberta  corporation  wholly-owned  by C. David
Siegfried,  an employee of J.R.S.  Exploration,  which corporation owned certain
seismic  data  acquisition  equipment  being leased to J.R.S.  Exploration.  The
purchase  price for Siegfried & Siegfried Ltd. was C$150,000  (U.S.$110,000)  in
cash and 12,500 shares of Common Stock. Under the terms of this acquisition, Mr.
Siegfried entered into a three-year employment agreement with J.R.S. Exploration
pursuant  to  which  Mr.  Siegfried  serves  as  Sales  Manager  and  Operations
Supervisor of J.R.S.  Exploration.  This  employment  agreement  provides for an
annual salary of C$100,000  (U.S.$73,000).  In connection  with this  employment
agreement,  Mr. Siegfried entered into a three-year covenant not to compete with
the  Registrant  or any of its  subsidiaries  in the  provision  of seismic data
acquisition or analysis services or any services related thereto.

         The  Registrant  used a portion of the proceeds  from its December 1996
public  offering of Common Stock to pay the cash  portion of the purchase  price
for J.R.S.  Exploration  and Siegfried & Siegfried Ltd. and to repay the debt of
J.R.S. Exploration described above.

         The foregoing description is qualified and supplemented by reference to
the description of the acquisition and business of J.R.S.  Exploration  found on
pages  36 and 37 of the  Registrant's  Registration  Statement  on Form S-1 (No.
333-13665) which is incorporated herein by reference.


<PAGE>

ITEM 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.


        (a)     Financial Statements of Businesses Acquired.

                Not included.*

        (b)     Pro Forma Financial Information.

                Not included.*

        (c)     Exhibits.

        2.1     Stock  Purchase  Agreement  among  3.D  Geophysical,  Inc.,  3-D
                Geophysical of Canada,  Inc., D.E.  Janveau,  Gladys Mueller and
                W.G.  Mueller,  dated as of December 10, 1996  (Incorporated  by
                reference  to  Exhibit  2.12  of the  Registrant's  Registration
                Statement on Form S-1 (No. 333-13665)).

        2.2     Stock  Purchase  Agreement  among  3-D  Geophysical,  Inc.,  3-D
                Geophysical  of Canada,  Inc.,  C. David  Siegfried and Peggy J.
                Siegfried,  dated  as of  December  10,  1996  (Incorporated  by
                reference  to  Exhibit  2.13  of the  Registrant's  Registration
                Statement on Form S-1 (No. 333-13665)).

        10.1    Employment  Agreement  dated  January  27, 1997  between  J.R.S.
                Exploration Company Limited and Donald E. Janveau.**

        10.2    Employment  Agreement  dated  January  27, 1997  between  J.R.S.
                Exploration Company Limited and W.G. Mueller.**

        10.3    Employment  Agreement  dated  January  27, 1997  between  J.R.S.
                Exploration Company Limited and C. David Siegfried.**

        10.4    Non-Competition  Agreement dated January 27, 1997 between J.R.S.
                Exploration Company Limited and Donald E. Janveau.**

        10.5    Non-Competition  Agreement dated January 27, 1997 between J.R.S.
                Exploration Company Limited and W.G. Mueller.**

        10.6    Non-Competition  Agreement dated January 27, 1997 between J.R.S.
                Exploration Company Limited and C. David Siegfried.**


* To be filed by amendment not later than 75 days after January 27, 1997.

**  Filed herewith.


<PAGE>

                                   SIGNATURES


         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  Registrant  has duly  caused  this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                                     3-D GEOPHYSICAL, INC.

                                     By: /s/ Joel Friedman
                                        -----------------------
                                           Name:  Joel Friedman
                                           Title: Chairman



Date:  March 26, 1997


<PAGE>


                                  EXHIBIT INDEX

Exhibit                                                                   Page
- -------                                                                   ----

10.1   Employment  Agreement  dated  January 27, 1997  between  J.R.S.
       Exploration Company Limited and Donald E. Janveau.

10.2   Employment  Agreement  dated  January 27, 1997  between  J.R.S.
       Exploration Company Limited and W.G. Mueller.

10.3   Employment  Agreement  dated  January 27, 1997  between  J.R.S.
       Exploration Company Limited and C. David Siegfried.

10.4   Non-Competition Agreement dated January 27, 1997 between J.R.S.
       Exploration Company Limited and Donald E. Janveau.

10.5   Non-Competition Agreement dated January 27, 1997 between J.R.S.
       Exploration Company Limited and W.G. Mueller.

10.6   Non-Competition Agreement dated January 27, 1997 between J.R.S.
       Exploration Company Limited and C. David Siegfried.





                         EXECUTIVE EMPLOYMENT AGREEMENT


         EMPLOYMENT  AGREEMENT (this  "Agreement")  dated as of January 27, 1997
between  J.R.S.   Exploration  Company  Limited,  an  Alberta  corporation  (the
"Company"), and D.E. Janveau (the "Employee").


         WHEREAS,  the Employee  has been an  executive  officer and an indirect
shareholder  of the  Company  for a  number  of  years  and  was  active  in the
management of the business and affairs of the Company;


         WHEREAS,  all of the outstanding  capital stock of the Company has been
acquired by 3-D Geophysical,  Inc., a Delaware corporation ("3-D"),  pursuant to
that certain Stock Purchase Agreement dated as of December 10, 1996 by and among
3-D, 3-D Geophysical of Canada, Inc., a Canadian corporation ("3-D Canada"), the
Employee,  Gladys Mueller and W.G.  Mueller  (collectively,  the  "Vendors")(the
"Stock Purchase Agreement");


         WHEREAS the Employee  acknowledges  that 3-D and 3-D Canada have paid a
substantial  price  to  acquire  the  Company  from the  Vendors,  and it is the
intention of 3-D, 3-D Canada and the Vendors  (including  the Employee) that the
Company shall be entitled  exclusively  to the benefits of the  goodwill,  trade
secrets,   proprietary  rights,  patents,   know-how  and  customer  and  client
relationships  heretofore established,  developed and maintained by the Company,
whether or not through the services or


<PAGE>

efforts  of  the  Employee  as  an  executive  officer,   employee  or  indirect
shareholder of the Company;

         WHEREAS,  it  is  a  condition  to  the  closing  of  the  transactions
contemplated  under the Stock  Purchase  Agreement that the parties hereto enter
into this Agreement;


         WHEREAS,  the Company  desires to employ the  Employee on the terms and
conditions  provided in this Agreement with a view to maintaining and developing
the  goodwill,  trade  secrets,  proprietary  rights,  know-how and customer and
client relationships of the Company; and


         WHEREAS,  the Employee  desires to accept such employment and to render
services to the Company on the terms and conditions provided in this Agreement;


         NOW,  THEREFORE,  in  consideration  of the  mutual  agreements  herein
contained, the Company and the Employee hereby agree as follows:


         Section 1.  Engagement.  The Company hereby employs the Employee as its
President and Chief  Executive  Officer,  and the Employee  hereby  accepts such
employment, upon and subject to the terms and conditions hereinafter set forth.


         Section 2.  Term.  Unless sooner terminated as provided in
this Agreement, the term of the Employee's employment under this
Agreement shall commence on the Closing Date under the Stock


                                       -2-

<PAGE>

Purchase  Agreement (as defined therein) and shall end on the third  anniversary
thereof (the "Term").


         Section 3. Duties and Services.


         3.1 The Employee shall render  services to the Company as its President
and  Chief   Executive   Officer  and  shall   perform  such  other  duties  and
responsibilities  as may be  assigned to the  Employee  from time to time by the
Board of  Directors  of the  Company  (the  "Directors")  and shall abide by the
practices  and  policies of the  Company  governing  the  conduct of  employees.
However,  any assignments  presented to the Employee for continuous work outside
of Canada for a duration  of two weeks or longer may be  accepted or rejected in
the  discretion of the Employee.  The Employee shall also serve as an officer or
director  of  such  other  direct  or  indirect  subsidiaries  of  3-D as may be
requested by the Directors or the Chief  Executive  Officer of 3-D,  without any
additional  compensation.  The Employee will perform all such service shereunder
with  a  view  to  maintaining  and  developing  the  goodwill,  trade  secrets,
proprietary  rights,  know-how  and  customer  and client  relationships  of the
Company.


         3.2 During the Term,  the  Employee  shall  devote such energy and time
(exclusive of normal  holidays and vacation  periods and periods of sickness and
disability)  as are  reasonably  necessary to perform the  Employee's  duties as
defined herein and shall  promptly and  faithfully  perform all the duties which
pertain to the Employee's employment.


                                       -3-

<PAGE>

         Section 4.  Compensation.


         4.1 Annual Compensation.  In consideration of all of the services to be
rendered by the Employee  hereunder  and the covenants of Employee  herein,  the
Company  agrees to pay to the  Employee,  and the Employee  agrees to accept,  a
salary at the annual rate of $150,000.00 (Canadian).


         4.2 Bonus  Pool.  3-D  intends  to create a bonus  plan  based upon the
earnings  of 3-D to provide  incentives  for  certain  employees  of 3-D and its
subsidiaries,   including  the  Company.  The  Employee  shall  be  entitled  to
participate in such plan on such terms as may be determined by the  Compensation
Committee of the Board of Directors of 3-D, in its  discretion.  Nothing in this
Agreement shall require 3-D to pay any such bonus.

         Section 5. Expenses and Reimbursement. The Employee shall be reimbursed
by the Company for reasonable and necessary  out-of-pocket  expenses incurred by
the Employee in  performing  his duties  hereunder,  provided  such expenses are
approved in accordance with the procedures of the Company then in effect and are
presented  for  reimbursement  in  accordance  with the  Company's  policies and
practices then in effect.


         Section 6. Benefits. During the Term, the Company agrees to provide the
Employee,  in addition to and not in limitation of the compensation set forth in
Section  4,  the  following  benefits,  which  shall be  determined  in the sole
discretion of the Directors (or a duly constituted committee thereof):


                                       -4-

<PAGE>


         (a)  The  Employee   shall  be  entitled,   subject  to   qualification
requirements,  to participate in any and all group insurance plans, group health
or medical  insurance plans and group accidental and disability  insurance plans
made generally available to the senior executive employees of the Company.


         (b) The Employee  shall be entitled to  participate  in 3-D's  pension,
profit-sharing, stock option, stock purchase and other employee benefit programs
made generally available to the senior executive employees of the Company.


         (c) The Employee  shall be entitled to four weeks annual paid vacation,
as well as sick leave and holidays in accordance with the Company's policies for
senior executive employees generally.


         (d) During the term of  employment  under this  Agreement,  the Company
shall pay the Employee,  on a monthly basis,  an amount equal to $650 (Canadian)
per month as a non-accountable allowance for lease payments, insurance and other
expenses of an automobile leased by the Employee.

         Section 7.  Termination.  Subject to the provisions of Section 8, which
shall survive the termination of this Agreement,  this Agreement shall terminate
upon:


         (a)      The death of the Employee;


         (b) Illness,  disability or incapacity  that prevents the Employee from
performing his duties hereunder for one hundred


                                       -5-

<PAGE>

twenty (120)  consecutive  days, or for any one hundred twenty (120) days within
any twelve  (12)  month  period,  and the  provision  of  written  notice to the
Employee by the Company of such election to terminate; or


         (c) Upon  written  notice  for  Cause,  which  shall  include,  without
limitation,  (i) the failure of the  Employee to observe or perform any material
term of this  Agreement  for  twenty  (20) days  after  written  notice  thereof
specifying such failure; (ii) any act of illegality, dishonesty, moral turpitude
or fraud in connection with the Employee's  employment;  or (iii) the commission
by the Employee of any serious indictable offense.



         Section 8. Restrictive Covenants.  In consideration of the undertakings
of the Company set forth herein, the Employee agrees as follows:


         8.1 Covenant Not to Solicit  Employees of the Company.  During the Term
and for a period of one (1) year after the termination of this Agreement for any
reason  whatsoever,  the Employee  shall not solicit for  employment  any sales,
engineering  or other  technical or management  employee who was employed by the
Company or any of its subsidiaries during the Term.


         8.2 Non-Disclosure  Covenant.  The Employee recognizes and acknowledges
that,  in the course of his  employment,  the Employee will have access to trade
secrets,  proprietary  rights,  know-how,  and  other  confidential  information
(collectively,   "Confidential  Informaton")  of  the  Company,  3-D  and  their
respective


                                       -6-

<PAGE>

subsidiaries,  including,  but not limited to,  information  concerning  seismic
data,  marketing  strategy,   technology,   techniques  and  know-how,  customer
specifications  and customer lists, cost figures,  budgets,  sales forecasts and
business plans. The Employee agrees that the disclosure of any such Confidential
Information  could be  harmful  to the  interests  of the  Company,  3-D or such
subsidiaries  and that,  during the Employee's  employment by the Company or its
subsidiaries,  the Employee will take appropriate  caution to safeguard all such
Confidential  Information,  and will not  during  the  Term or  thereafter  use,
disclose,  divulge  or  publish  any such  Confidential  Information  except  as
required by law or as the Employee's duties during the Employee's  employment by
the  Company or its  subsidiaries  may  require or as the Company may in writing
specifically consent.


         8.3 Proprietary  Information.  The Employee recognizes and acknowledges
that all documents,  manuals,  letters,  notebooks,  reports,  records, computer
programs or data banks and other evidences of trade secrets, proprietary rights,
know-how  and  other  confidential  information  of the  Company,  3-D and their
respective  subsidiaries,  including  copies  thereof,  whether  prepared by the
Employee  or others,  are the sole  property  of and belong  exclusively  to the
Company,  3-D and their  respective  subsidiaries,  and agrees that,  during the
Employee's  employment  by the Company or its  subsidiaries,  the Employee  will
under no  circumstances  remove any such material for use outside of his offices
except in connection  with the business of the Company  during the course of the
Employee's employment. In the event of


                                       -7-

<PAGE>

the termination of this Agreement for any reason whatsoever,  the Employee shall
immediately  return to the  Company  any and all  documents,  manuals,  letters,
notebooks,  records,  computer  programs or data banks or other evidence of such
Confidential Information of the Company, including copies thereof, which are the
property of the Company, 3-D or any of their respective subsidiaries.


         8.4 Remedies.  The Employee hereby agrees that all restrictions imposed
upon the Employee hereunder are reasonable,  fair and valid, and all defenses to
the  strict  enforcement  of the  provisions  hereof  are  hereby  waived by the
Employee.  The  Employee  further  agrees  that  in the  event  of a  breach  or
threatened  breach of any of the  covenants  contained  in this  Section  8, the
Company's  remedy at law is likely to be  inadequate  and that  accordingly  the
Company will be entitled to obtain an injunction or other equitable  relief with
regard thereto  without  proving damages or that damages would not constitute an
adequate  remedy.  If the final  judgment of a court of  competent  jurisdiction
declares   that  any  term  or  provision  of  this  Section  8  is  invalid  or
unenforceable,  in whole or in part,  the  parties  hereto  agree that the court
making the determination of invalidity or unenforceability  shall have the power
to, and is hereby directed to, reduce the scope, duration or area of the term or
provision  by deleting  specific  words or phrases as  necessary  to comply with
applicable law or to be enforceable by a court of competent  jurisdiction  or by
replacing  any  invalid  or  unenforceable  term  or  provision  with a term  or
provision that is


                                       -8-

<PAGE>

valid and  enforceable and that comes closest to expressing the intention of the
invalid  and  unenforceable  term or  provision,  and  this  Agreement  shall be
enforceable as so modified.


         8.5 Survival. The provisions of this Section 8 shall survive the Term.


         9.   Miscellaneous Provisions.


         9.1 Notices. All notices and demands of any kind which any party hereto
may be  required or desire to serve upon  another  party under the terms of this
Agreement shall be in writing and shall be served upon such other party:  (a) by
personal  service upon such other party at such other party's  address set forth
below in this  Section  9.1; or (b) by mailing a copy  thereof by  certified  or
registered mail, postage prepaid,  with return receipt  requested,  addressed to
such other  party at the  address of such  other  party set forth  below in this
Section 9.1; or (c) by sending a copy thereof by Federal  Express or  equivalent
courier  service,  addressed  to such other  party at the  address of such other
party set forth below in this  Section  9.1; or (d) by sending a copy thereof by
facsimile  to such other party at the  facsimile  number,  if any, of such other
party set forth below in this Section 9.1.


               In case of  service  by Federal  Express  or  equivalent  courier
service or by facsimile  or by personal  service,  such service  shall be deemed
complete  upon  receipt.  In the case of service by mail,  such service shall be
deemed complete upon


                                       -9-

<PAGE>

reasonable  proof of receipt.  The address and  facsimile  number to which,  and
person to whose attention, notices and demands shall be delivered or sent may be
changed from time to time by notice  served,  as  hereinabove  provided,  by any
party upon the other party.


               The current  addresses and facsimile  numbers of the parties are:
If to the Employee:  

                           D.E.  Janveau 
                           c/o J.R.S.  Exploration  Company  Limited 
                           4750 30th Street S.E.  
                           Calgary,  Alberta T2B271  
                           Telecopier  No.: (403) 264-0478

                           If to the Company:

                           J.R.S. Exploration Company Limited
                           4750 30th Street S.E.
                           Calgary, Alberta T2B271
                           Attention:  Chief Financial Officer
                           Telecopier No.: (403) 264-0478
                           
                           with copies to:
                           
                           3-D Geophysical, Inc.
                           599 Lexington Avenue
                                   Suite 4102
                           New York, New York 10022
                           Telecopier No.: (212) 317-9230
                           Attention: Joel Friedman, Chairman

                                    -and-

                           Kramer, Levin, Naftalis & Frankel
                           919 Third Avenue
                           New York, New York 10022
                           Telecopier No.: (212) 715-8000
                           Attention: Peter S. Kolevzon, Esq.


         9.2 Entire  Agreement;  Amendment.  This Agreement  contains the entire
agreement between the parties  respecting the subject matter hereof,  merges all
prior negotiations, agreements and


                                      -10-

<PAGE>

understandings,  if any, respecting the subject matter hereof and states in full
all   representations,   warranties  and  agreements  which  have  induced  this
Agreement.  Each party  agrees  that in dealing  with third  parties no contrary
representations  will be made.  This  Agreement may not be amended,  modified or
otherwise changed orally but only by an agreement in writing signed by the party
against whom enforcement of any amendment, modification or change is sought.


         9.3 Assignment;  Binding Nature; Assumption. This Agreement shall inure
to the benefit of and be enforceable  by, and may be assigned by the Company to,
any purchaser of all or substantially  all of the Company's  business or assets,
any  successor  to the  Company  or any  assignee  thereof  (whether  direct  or
indirect,  by purchase,  merger,  consolidation or otherwise).  The Company will
require any such purchaser,  successor or assignee to expressly assume and agree
to perform  this  Agreement  in the same  manner and to the same extent that the
Company  would be  required  to perform it if no such  purchase,  succession  or
assignment  had taken place.  This Agreement may not be assigned by the Employee
without the prior written consent of the Company.

         9.4  Nonwaiver.  No  waiver  by any  party of any  term,  provision  or
covenant  contained in this Agreement (or any breach thereof) shall be effective
unless it is in writing executed by the party against which such waiver is to be
enforced;  no waiver  shall be deemed or  construed  as a further or  continuing
waiver of any such term, provision or covenant (or breach) on any other


                                      -11-

<PAGE>


occasion or as a waiver of any other  term,  provision  or  covenant  (or of the
breach of any other term,  provision or covenant) contained in this Agreement on
the same or any other occasion.

         9.5 Remedies.  The remedies provided for or permitted by this Agreement
shall be  cumulative  and the  exercise by any party of any remedy  provided for
herein or otherwise  available  shall not preclude the  assertion or exercise by
such  party of any  other  right or remedy  provided  for  herein  or  otherwise
available.


         9.6  Headings.   The  headings  in  this  Agreement  are  inserted  for
convenience only and shall not constitute a part hereof.


         9.7  Construction.  In this  Agreement (i) words  denoting the singular
include  the plural and vice  versa,  (ii) "it" or "its" or words  denoting  any
gender include all genders,  (iii) any reference herein to a Section refers to a
Section of the Agreement,  unless  otherwise  stated,  (iv) when calculating the
period of time within or  following  which any act is to be done or steps taken,
the date which is the reference day in calculating such period shall be excluded
and if the last day of such period is not a business  day, then the period shall
end on the next day which is a  business  day,  and (v) all dollar  amounts  are
expressed in Canadian funds.


         9.8 Governing Law. This  Agreement  shall be governed by, and construed
and enforced in accordance with, the laws of the Province of Alberta  applicable
to contracts made and to be entirely performed therein.


                                      -12-

<PAGE>


         9.9  Counterparts.  For the  convenience of the parties,  any number of
counterparts  hereof may be executed,  each such executed  counterpart  shall be
deemed an original and all such  counterparts  together shall constitute one and
the same instrument.













                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK.]







                                      -13-

<PAGE>


               IN WITNESS WHEREOF, the parties hereto have caused this Agreement
to be duly executed as of the date and year first written above.

                                     J.R.S. EXPLORATION COMPANY LIMITED


                                     By  /s/ Ronald L. Koons
                                       ------------------------------------
                                       Name: Ronald L. Koons
                                       Title: Vice President



                                     EMPLOYEE:


                                       /s/ D.E. Janveau
                                     --------------------------------------
                                       D.E. Janveau


                                      -14-


                         EXECUTIVE EMPLOYMENT AGREEMENT



         EMPLOYMENT  AGREEMENT (this  "Agreement")  dated as of January 27, 1997
between  J.R.S.   Exploration  Company  Limited,  an  Alberta  corporation  (the
"Company"), and W.G. Mueller (the "Employee").


         WHEREAS,  the Employee  has been an  executive  officer and an indirect
shareholder  of the  Company  for a  number  of  years  and  was  active  in the
management of the business and affairs of the Company;


         WHEREAS,  all of the outstanding  capital stock of the Company has been
acquired by 3-D Geophysical,  Inc., a Delaware corporation ("3-D"),  pursuant to
that certain Stock Purchase Agreement dated as of December 10, 1996 by and among
3-D, 3-D Geophysical of Canada, Inc., a Canadian corporation (3-D Canada"), D.E.
Janveau,  Gladys Mueller and the Employee  (collectively,  the  "Vendors")  (the
"Stock Purchase Agreement");

         WHEREAS the Employee  acknowledges  that 3-D and 3-D Canada have paid a
substantial  price  to  acquire  the  Company  from the  Vendors,  and it is the
intention of 3-D, 3-D Canada and the Vendors  (including  the Employee) that the
Company shall be entitled  exclusively  to the benefits of the  goodwill,  trade
secrets,   proprietary  rights,  patents,   know-how  and  customer  and  client
relationships  heretofore established,  developed and maintained by the Company,
whether or not through the services or


<PAGE>

efforts  of  the  Employee  as  an  executive  officer,   employee  or  indirect
shareholder of the Company;

         WHEREAS,  it  is  a  condition  to  the  closing  of  the  transactions
contemplated  under the Stock  Purchase  Agreement that the parties hereto enter
into this Agreement;

         WHEREAS,  the Company  desires to employ the  Employee on the terms and
conditions  provided in this Agreement with a view to maintaining and developing
the  goodwill,  trade  secrets,  proprietary  rights,  know-how and customer and
client relationships of the Company; and


         WHEREAS,  the Employee  desires to accept such employment and to render
services to the Company on the terms and conditions provided in this Agreement;


         NOW,  THEREFORE,  in  consideration  of the  mutual  agreements  herein
contained, the Company and the Employee hereby agree as follows:


         Section 1.  Engagement.  The Company hereby employs the Employee as its
Vice President of Operations,  and the Employee hereby accepts such  employment,
upon and subject to the terms and conditions hereinafter set forth.


         Section  2.  Term.   Unless  sooner  terminated  as  provided  in  this
Agreement,  the term of the Employee's  employment  under this  Agreement  shall
commence on the Closing Date under the Stock


                                       -2-

<PAGE>

Purchase  Agreement (as defined therein) and shall end on the third  anniversary
thereof (the "Term").


         Section 3.  Duties and Services.


         3.1 The  Employee  shall  render  services  to the  Company as its Vice
President of Operations and shall perform such other duties and responsibilities
as may be assigned to the  Employee  from time to time by the  President  of the
Company or the Board of  Directors of the Company  (the  "Directors")  and shall
abide the  practices  and  policies  of the  Company  governing  the  conduct of
employees.  However,  any  assignments  presented to the Employee for continuous
work  outside of Canada for a duration of two weeks or longer may be accepted or
rejected in the discretion of the Employee.  The Employee shall also serve as an
officer or director of such other direct or indirect  subsidiaries of 3-D as may
be requested by the Directors or the Chief Executive Officer of 3-D, without any
additional  compensation.  The Employee will perform all such services hereunder
with  a  view  to  maintaining  and  developing  the  goodwill,  trade  secrets,
proprietary  rights,  know-how  and  customer  and client  relationships  of the
Company.

         3.2 During the Term,  the  Employee  shall  devote such energy and time
(exclusive of normal  holidays and vacation  periods and periods of sickness and
disability)  as are  reasonably  necessary to perform the  Employee's  duties as
defined herein and shall  promptly and  faithfully  perform all the duties which
pertain to the Employee's employment.


                                       -3-

<PAGE>

         Section 4.  Compensation.


         4.1 Annual Compensation.  In consideration of all of the services to be
rendered by the Employee  hereunder  and the covenants of Employee  herein,  the
Company  agrees to pay to the  Employee,  and the Employee  agrees to accept,  a
salary at the annual rate of $150,000.00 (Canadian).


         4.2 Bonus  Pool.  3-D  intends  to create a bonus  plan  based upon the
earnings  of 3-D to provide  incentives  for  certain  employees  of 3-D and its
subsidiaries,   including  the  Company.  The  Employee  shall  be  entitled  to
participate in such plan on such terms as may be determined by the  Compensation
Committee of the Board of Directors of 3-D, in its  discretion.  Nothing in this
Agreement shall require 3-D to pay any such bonus.

         Section 5. Expenses and Reimbursement. The Employee shall be reimbursed
by the Company for reasonable and necessary  out-of-pocket  expenses incurred by
the Employee in  performing  his duties  hereunder,  provided  such expenses are
approved in accordance with the procedures of the Company then in effect and are
presented  for  reimbursement  in  accordance  with the  Company's  policies and
practices then in effect.


         Section 6. Benefits. During the Term, the Company agrees to provide the
Employee,  in addition to and not in limitation of the compensation set forth in
Section  4,  the  following  benefits,  which  shall be  determined  in the sole
discretion of the Directors (or a duly constituted committee thereof):


                                       -4-

<PAGE>

         (a)  The  Employee   shall  be  entitled,   subject  to   qualification
requirements,  to participate in any and all group insurance plans, group health
or medical  insurance plans and group accidental and disability  insurance plans
made generally available to the senior executive employees of the Company.


         (b) The Employee  shall be entitled to  participate  in 3-D's  pension,
profit-sharing, stock option, stock purchase and other employee benefit programs
made generally available to the senior executive employees of the Company.


         (c) The Employee  shall be entitled to four weeks annual paid vacation,
as well as sick leave and holidays in accordance with the Company's policies for
senior executive employees generally.


         (d) During the term of  employment  under this  Agreement,  the Company
shall pay the Employee,  on a monthly basis,  an amount equal to $650 (Canadian)
per month as a non-accountable allowance for lease payments, insurance and other
expenses of an automobile leased by the Employee.

         Section 7.  Termination.  Subject to the provisions of Section 8, which
shall survive the termination of this Agreement,  this Agreement shall terminate
upon:


         (a)      The death of the Employee;


         (b) Illness,  disability or incapacity  that prevents the Employee from
performing his duties hereunder for one hundred


                                       -5-

<PAGE>

twenty (120)  consecutive  days, or for any one hundred twenty (120) days within
any twelve  (12)  month  period,  and the  provision  of  written  notice to the
Employee by the Company of such election to terminate; or


         (c) Upon  written  notice  for  Cause,  which  shall  include,  without
limitation,  (i) the failure of the  Employee to observe or perform any material
term of this  Agreement  for  twenty  (20) days  after  written  notice  thereof
specifying such failure; (ii) any act of illegality, dishonesty, moral turpitude
or fraud in connection with the Employee's  employment;  or (iii) the commission
by the Employee of any serious indictable offense.


         Section 8.  Restrictive Covenants.  In consideration of the
undertakings of the Company set forth herein, the Employee agrees
as follows:


         8.1 Covenant Not to Solicit  Employees of the Company.  During the Term
and for a period of one (1) year after the termination of this Agreement for any
reason  whatsoever,  the Employee  shall not solicit for  employment  any sales,
engineering  or other  technical or management  employee who was employed by the
Company or any of its subsidiaries during the Term.


         8.2 Non-Disclosure  Covenant.  The Employee recognizes and acknowledges
that,  in the course of his  employment,  the Employee will have access to trade
secrets,  proprietary  rights,  know-how,  and  other  confidential  information
(collectively,  "Confidential  Information")  of  the  Company,  3-D  and  their
respective


                                       -6-

<PAGE>

subsidiaries,  including,  but not limited to,  information  concerning  seismic
data,  marketing  strategy,   technology,   techniques  and  know-how,  customer
specifications  and customer lists, cost figures,  budgets,  sales forecasts and
business plans. The Employee agrees that the disclosure of any such Confidential
Information  could be  harmful  to the  interests  of the  Company,  3-D or such
subsidiaries  and that,  during the Employee's  employment by the Company or its
subsidiaries,  the Employee will take appropriate  caution to safeguard all such
Confidential  Information,  and will not  during  the  Term or  thereafter  use,
disclose,  divulge  or  publish  any such  Confidential  Information  except  as
required by law or as the Employee's duties during the Employee's  employment by
the  Company or its  subsidiaries  may  require or as the Company may in writing
specifically consent.


         8.3 Proprietary  Information.  The Employee recognizes and acknowledges
that all documents,  manuals,  letters,  notebooks,  reports,  records, computer
programs or data banks and other evidences of trade secrets, proprietary rights,
know-how  and  other  confidential  information  of the  Company,  3-D and their
respective  subsidiaries,  including  copies  thereof,  whether  prepared by the
Employee  or others,  are the sole  property  of and belong  exclusively  to the
Company,  3-D and their  respective  subsidiaries,  and agrees that,  during the
Employee's  employment  by the Company or its  subsidiaries,  the Employee  will
under no  circumstances  remove any such material for use outside of his offices
except in connection  with the business of the Company  during the course of the
Employee's employment. In the event of


                                       -7-

<PAGE>

the termination of this Agreement for any reason whatsoever,  the Employee shall
immediately  return to the  Company  any and all  documents,  manuals,  letters,
notebooks,  records,  computer  programs or data banks or other evidence of such
Confidential Information of the Company, including copies thereof, which are the
property of the Company, 3-D or any of their respective subsidiaries.


         8.4 Remedies.  The Employee hereby agrees that all restrictions imposed
upon the Employee hereunder are reasonable,  fair and valid, and all defenses to
the  strict  enforcement  of the  provisions  hereof  are  hereby  waived by the
Employee.  The  Employee  further  agrees  that  in the  event  of a  breach  or
threatened  breach of any of the  covenants  contained  in this  Section  8, the
Company's  remedy at law is likely to be  inadequate  and that  accordingly  the
Company will be entitled to obtain an injunction or other equitable  relief with
regard thereto  without  proving damages or that damages would not constitute an
adequate  remedy.  If the final  judgment of a court of  competent  jurisdiction
declares   that  any  term  or  provision  of  this  Section  8  is  invalid  or
unenforceable,  in whole or in part,  the  parties  hereto  agree that the court
making the determination of invalidity or unenforceability  shall have the power
to, and is hereby directed to, reduce the scope, duration or area of the term or
provision  by deleting  specific  words or phrases as  necessary  to comply with
applicable law or to be enforceable by a court of competent  jurisdiction  or by
replacing  any  invalid  or  unenforceable  term  or  provision  with a term  or
provision that is


                                       -8-

<PAGE>

valid and  enforceable and that comes closest to expressing the intention of the
invalid  and  unenforceable  term or  provision,  and  this  Agreement  shall be
enforceable as so modified.


         8.5 Survival. The provisions of this Section 8 shall survive the Term.


         9.   Miscellaneous Provisions.


         9.1 Notices. All notices and demands of any kind which any party hereto
may be  required or desire to serve upon  another  party under the terms of this
Agreement shall be in writing and shall be served upon such other party:  (a) by
personal  service upon such other party at such other party's  address set forth
below in this  Section  9.1; or (b) by mailing a copy  thereof by  certified  or
registered mail, postage prepaid,  with return receipt  requested,  addressed to
such other  party at the  address of such  other  party set forth  below in this
Section 9.1; or (c) by sending a copy thereof by Federal  Express or  equivalent
courier  service,  addressed  to such other  party at the  address of such other
party set forth below in this  Section  9.1; or (d) by sending a copy thereof by
facsimile  to such other party at the  facsimile  number,  if any, of such other
party set forth below in this Section 9.1.


               In case of  service  by Federal  Express  or  equivalent  courier
service or by facsimile  or by personal  service,  such service  shall be deemed
complete  upon  receipt.  In the case of service by mail,  such service shall be
deemed complete upon


                                       -9-

<PAGE>

reasonable  proof of receipt.  The address and  facsimile  number to which,  and
person to whose attention, notices and demands shall be delivered or sent may be
changed from time to time by notice  served,  as  hereinabove  provided,  by any
party upon the other party.


               The current addresses and facsimile numbers of the parties are:

                           If to the Employee:

                           W.G. Mueller
                           c/o J.R.S. Exploration Company Limited
                           4750 30th Street S.E.
                           Calgary, Alberta T2B271
                           Telecopier No.: (403) 264-0478

                           If to the Company:

                           J.R.S. Exploration Company Limited
                           4750 30th Street S.E.
                           Calgary, Alberta T2B271
                           Telecopier No.: (403) 264-0478
                           Attention:  Chief Financial Officer
                           
                           with copies to:

                           3-D Geophysical, Inc.
                           599 Lexington Avenue
                                   Suite 4102
                           New York, New York 10022
                           Telecopier No.: (212) 317-9230
                           Attention: Joel Friedman, Chairman

                                    -and-

                           Kramer, Levin, Naftalis & Frankel
                           919 Third Avenue
                           New York, New York 10022
                           Telecopier No.: (212) 715-8000
                           Attention: Peter S. Kolevzon, Esq.


         9.2 Entire  Agreement;  Amendment.  This Agreement  contains the entire
agreement between the parties respecting the subject


                                      -10-

<PAGE>

matter hereof, merges all prior negotiations,  agreements and understandings, if
any,   respecting   the   subject   matter   hereof   and  states  in  full  all
representations,  warranties and agreements  which have induced this  Agreement.
Each party agrees that in dealing with third parties no contrary representations
will be made. This Agreement may not be amended,  modified or otherwise  changed
orally but only by an  agreement  in writing  signed by the party  against  whom
enforcement of any amendment, modification or change is sought.


         9.3 Assignment;  Binding Nature; Assumption. This Agreement shall inure
to the benefit of and be enforceable  by, and may be assigned by the Company to,
any purchaser of all or substantially  all of the Company's  business or assets,
any  successor  to the  Company  or any  assignee  thereof  (whether  direct  or
indirect,  by purchase,  merger,  consolidation or otherwise).  The Company will
require any such purchaser,  successor or assignee to expressly assume and agree
to perform  this  Agreement  in the same  manner and to the same extent that the
Company  would be  required  to perform it if no such  purchase,  succession  or
assignment  had taken place.  This Agreement may not be assigned by the Employee
without the prior written consent of the Company.

         9.4  Nonwaiver.  No  waiver  by any  party of any  term,  provision  or
covenant  contained in this Agreement (or any breach thereof) shall be effective
unless it is in writing executed by the party against which such waiver is to be
enforced;  no waiver  shall be deemed or  construed  as a further or  continuing
waiver of


                                      -11-

<PAGE>

any such term,  provision or covenant (or breach) on any other  occasion or as a
waiver of any other term,  provision  or covenant (or of the breach of any other
term,  provision  or covenant)  contained  in this  Agreement on the same or any
other occasion.


         9.5 Remedies.  The remedies provided for or permitted by this Agreement
shall be  cumulative  and the  exercise by any party of any remedy  provided for
herein or otherwise  available  shall not preclude the  assertion or exercise by
such  party of any  other  right or remedy  provided  for  herein  or  otherwise
available.


         9.6  Headings.   The  headings  in  this  Agreement  are  inserted  for
convenience only and shall not constitute a part hereof.


         9.7  Construction.  In this  Agreement (i) words  denoting the singular
include  the plural and vice  versa,  (ii) "it" or "its" or words  denoting  any
gender include all genders,  (iii) any reference herein to a Section refers to a
Section of the Agreement,  unless  otherwise  stated,  (iv) when calculating the
period of time within or  following  which any act is to be done or steps taken,
the date which is the reference day in calculating such period shall be excluded
and if the last day of such period is not a business  day, then the period shall
end on the next day which is a  business  day,  and (v) all dollar  amounts  are
expressed in Canadian funds.


         9.8 Governing Law. This  Agreement  shall be governed by, and construed
and enforced in accordance with, the laws of the


                                      -12-

<PAGE>

Province of Alberta  applicable to contracts  made and to be entirely  performed
therein.


         9.9  Counterparts.  For the  convenience of the parties,  any number of
counterparts  hereof may be executed,  each such executed  counterpart  shall be
deemed an original and all such  counterparts  together shall constitute one and
the same instrument.















                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK.]






                                      -13-

<PAGE>

                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Agreement to be duly executed as of the date and year first written above.

                                      J.R.S. EXPLORATION COMPANY LIMITED


                                      By /s/ Ronald L. Koons
                                        -----------------------------
                                        Name:  Ronald L. Koons
                                        Title: Vice President



                                      EMPLOYEE:

                                        /s/ W.G. Mueller
                                      ------------------------------
                                        W.G. Mueller


                                     -14-

                              EMPLOYMENT AGREEMENT



         EMPLOYMENT  AGREEMENT (this  "Agreement")  dated as of January 27, 1997
between  J.R.S.   Exploration  Company  Limited,  an  Alberta  corporation  (the
"Company"), and C.D. Siegfried (the "Employee").


         WHEREAS,  the Company  desires to employ the  Employee on the terms and
conditions  provided in this Agreement with a view to maintaining and developing
the  goodwill,  trade  secrets,  proprietary  rights,  know-how and customer and
client relationships of the Company; and


         WHEREAS,  the Employee  desires to accept such employment and to render
services to the Company on the terms and conditions provided in this Agreement;


         NOW,  THEREFORE,  in  consideration  of the  mutual  agreements  herein
contained, the Company and the Employee hereby agree as follows:


         Section 1.  Engagement.  The Company hereby employs the Employee as its
Sales Manager and Operations  Supervisor,  and the Employee  hereby accepts such
employment, upon and subject to the terms and conditions hereinafter set forth.


               Section 2. Term.  Unless  sooner  terminated  as provided in this
Agreement,  the term of the Employee's  employment  under this  Agreement  shall
commence on the date (the "Effective Date") that


<PAGE>

the Company is sold to 3-D Geophysical,  Inc., a Delaware  corporation  ("3-D"),
and shall end on the third  anniversary  thereof (the "Term").  On or before the
second  anniversary  of the  Effective  Date,  3-D will  notify the  Employee in
writing  whether or not 3-D elects to extend the Term for one additonal year. If
3-D so notifies  the Employee  that it elects to extend the Term,  the Term will
end on the fourth anniversary of the Effective Date.


         Section 3.  Duties and Services.


         3.1 The  Employee  shall  render  services  to the Company as its Sales
Manager  and  Operations  Supervisor  and shall  perform  such other  duties and
responsibilities  as may be  assigned to the  Employee  from time to time by the
President  of the  Company  or the  Board  of  Directors  of  the  Company  (the
"Directors")  and shall  abide by the  practices  and  policies  of the  Company
governing the conduct of employees.  However,  any assignments  presented to the
Employee  for  continuous  work outside of Canada for a duration of two weeks or
longer may be  accepted  or  rejected in the  discretion  of the  Employee.  The
Employee will perform all such services hereunder with a view to maintaining and
developing  the  goodwill,  trade  secrets,  proprietary  rights,  know-how  and
customer and client relationships of the Company.

         3.2 During the Term,  the  Employee  shall  devote such energy and time
(exclusive of normal  holidays and vacation  periods and periods of sickness and
disability)  as are  reasonably  necessary to perform the  Employee's  duties as
defined herein and shall


                                       -2-

<PAGE>

promptly and faithfully perform all the duties which pertain to
the Employee's employment.


         Section 4.  Compensation.


         4.1 Annual Compensation.  In consideration of all of the services to be
rendered by the Employee  hereunder  and the covenants of Employee  herein,  the
Company  agrees to pay to the  Employee,  and the Employee  agrees to accept,  a
salary at the annual rate of $100,000.00 (Canadian).


         4.2 Bonus  Pool.  3-D  intends  to create a bonus  plan  based upon the
earnings  of 3-D to provide  incentives  for  certain  employees  of 3-D and its
subsidiaries,   including  the  Company.  The  Employee  shall  be  entitled  to
participate in such plan on such terms as may be determined by the  Compensation
Committee of the Board of Directors of 3-D, in its  discretion.  Nothing in this
Agreement shall require 3-D to pay any such bonus.

         Section 5. Expenses and Reimbursement. The Employee shall be reimbursed
by the Company for reasonable and necessary  out-of-pocket  expenses incurred by
the Employee in  performing  his duties  hereunder,  provided  such expenses are
approved in accordance with the procedures of the Company then in effect and are
presented  for  reimbursement  in  accordance  with the  Company's  policies and
practices then in effect.


         Section 6.  Benefits.  During the Term, the Company agrees
to provide the Employee, in addition to and not in limitation of
the compensation set forth in Section 4, the following benefits,


                                       -3-

<PAGE>

which shall be  determined  in the sole  discretion  of the Directors (or a duly
constituted committee thereof):


         (a)  The  Employee   shall  be  entitled,   subject  to   qualification
requirements,  to participate in any and all group insurance plans, group health
or medical  insurance plans and group accidental and disability  insurance plans
made generally available to the senior executive employees of the Company.


         (b) The Employee  shall be entitled to  participate  in 3-D's  pension,
profit-sharing, stock option, stock purchase and other employee benefit programs
made generally available to the senior executive employees of the Company.


         (c) The Employee  shall be entitled to four weeks annual paid vacation,
as well as sick leave and holidays in accordance with the Company's policies for
senior executive employees generally.


         (d) During the term of  employment  under this  Agreement,  the Company
shall pay the Employee,  on a monthly basis,  an amount equal to $650 (Canadian)
per month as a non-accountable allowance for lease payments, insurance and other
expenses of an automobile leased by the Employee.

         (e) As further  consideration  of the  services  to be  rendered by the
Employee,  on the  Effective  Date the Employee  shall be granted an option (the
"Option"), pursuant to the 3-D's 1995 Long-Term Incentive Compensation Plan (the
"Plan"),  to  purchase  15,000  shares of the Common  Stock,  par value $.01 per
share, of


                                       -4-

<PAGE>

3-D (the  "Common  Stock") at a per share  exercise  price  equal to the closing
price of one  share  of  Common  Stock  on the  NASDAQ  National  Market  on the
Effective Date, as reported by The Wall Street Journal. The Option shall vest in
four  cumulative  annual  installments  of 3,750 shares each,  commencing on the
first  anniversary  of the  Effective  Date.  The terms of the  Option  shall be
governed by the Plan, as well as the terms of the option agreement  entered into
pursuant to the terms of the Plan.


         Section 7.  Termination.  Subject to the provisions of Section 8, which
shall survive the termination of this Agreement,  this Agreement shall terminate
upon:


         (a)      The death of the Employee;


         (b) Illness,  disability or incapacity  that prevents the Employee from
performing his duties hereunder for one hundred twenty (120)  consecutive  days,
or for any one hundred  twenty  (120) days within any twelve (12) month  period,
and the  provision  of written  notice to the  Employee  by the  Company of such
election to terminate; or


         (c) Upon  written  notice  for  Cause,  which  shall  include,  without
limitation,  (i) the failure of the  Employee to observe or perform any material
term of this  Agreement  for  twenty  (20) days  after  written  notice  thereof
specifying such failure; (ii) any act of illegality, dishonesty, moral turpitude
or fraud in connection with the Employee's  employment;  or (iii) the commission
by the Employee of any serious indictable offense.


                                       -5-

<PAGE>


         Section 8. Restrictive Covenants.  In consideration of the undertakings
of the Company set forth herein, the Employee agrees as follows:


         8.1 Covenant Not to Solicit  Employees of the Company.  During the Term
and for a period of one (1) year after the termination of this Agreement for any
reason  whatsoever,  the Employee  shall not solicit for  employment  any sales,
engineering  or other  technical or management  employee who was employed by the
Company or any of its subsidiaries during the Term.


         8.2 Non-Disclosure  Covenant.  The Employee recognizes and acknowledges
that,  in the course of his  employment,  the Employee will have access to trade
secrets,   proprietary  rights,  know-how  and  other  confidential  information
(collectively,  "Confidential  Information")  of  the  Company,  3-D  and  their
respective  subsidiaries,  including, but not limited to, information concerning
seismic data, marketing strategy, technology,  techniques and know-how, customer
specifications  and customer lists, cost figures,  budgets,  sales forecasts and
business plans. The Employee agrees that the disclosure of any such Confidential
Information  could be  harmful  to the  interests  of the  Company,  3-D or such
subsidiaries  and that,  during the Employee's  employment by the Company or its
subsidiaries,  the Employee will take appropriate  caution to safeguard all such
Confidential  Information,  and will not  during  the  Term or  thereafter  use,
disclose,  divulge  or  publish  any such  Confidential  Information  except  as
required by law or as the Employee's duties during the


                                       -6-

<PAGE>

Employee's  employment by the Company or its  subsidiaries may require or as the
Company may in writing specifically consent.


         8.3 Proprietary  Information.  The Employee recognizes and acknowledges
that all documents,  manuals,  letters,  notebooks,  reports,  records, computer
programs or data banks and other evidences of trade secrets, proprietary rights,
know-how and other confidential or proprietary  information of the Company,  3-D
and their respective subsidiaries, including copies thereof, whether prepared by
the Employee or others,  are the sole property of and belong  exclusively to the
Company,  3-D and their  respective  subsidiaries,  and agrees that,  during the
Employee's  employment  by the Company or its  subsidiaries,  the Employee  will
under no  circumstances  remove any such material for use outside of his offices
except in connection  with the business of the Company  during the course of the
Employee's employment. In the event of the termination of this Agreement for any
reason whatsoever,  the Employee shall immediately return to the Company any and
all documents,  manuals, letters, notebooks,  records, computer programs or data
banks  or  other  evidence  of such  Confidential  Information  of the  Company,
including copies thereof,  which are the property of the Company,  3-D or any of
their respective subsidiaries.


         8.4 Remedies.  The Employee hereby agrees that all restrictions imposed
upon the Employee hereunder are reasonable,  fair and valid, and all defenses to
the  strict  enforcement  of the  provisions  hereof  are  hereby  waived by the
Employee. The


                                       -7-

<PAGE>

Employee  further  agrees that in the event of a breach or threatened  breach of
any of the covenants contained in this Section 8, the Company's remedy at law is
likely to be  inadequate  and that  accordingly  the Company will be entitled to
obtain an  injunction  or other  equitable  relief with regard  thereto  without
proving damages or that damages would not constitute an adequate remedy.  If the
final  judgment of a court of competent  jurisdiction  declares that any term or
provision  of this Section 8 is invalid or  unenforceable,  in whole or in part,
the parties hereto agree that the court making the  determination  of invalidity
or  unenforceability  shall have the power to, and is hereby directed to, reduce
the scope, duration or area of the term or provision, by deleting specific words
or phrases, as necessary to comply with applicable law or to be enforceable by a
court of competent  jurisdiction  or by replacing  any invalid or  unenforceable
term or provision  with a term or provision  that is valid and  enforceable  and
that comes closest to expressing the intention of the invalid and  unenforceable
term or provision, and this Agreement shall be enforceable as so modified.


         8.5 Survival. The provisions of this Section 8 shall survive the Term.

         9.   Miscellaneous Provisions.


         9.1 Notices. All notices and demands of any kind which any party hereto
may be  required or desire to serve upon  another  party under the terms of this
Agreement shall be in writing and shall be served upon such other party:  (a) by
personal service


                                       -8-

<PAGE>

upon such other  party at such other  party's  address  set forth  below in this
Section 9.1; or (b) by mailing a copy thereof by certified or  registered  mail,
postage prepaid, with return receipt requested, addressed to such other party at
the address of such other party set forth below in this  Section  9.1; or (c) by
sending a copy  thereof  by  Federal  Express  or  equivalent  courier  service,
addressed to such other party at the address of such other party set forth below
in this Section 9.1; or (d) by sending a copy thereof by facsimile to such other
party at the  facsimile  number,  if any, of such other party set forth below in
this Section 9.1.


               In case of  service  by Federal  Express  or  equivalent  courier
service or by facsimile  or by personal  service,  such service  shall be deemed
complete  upon  receipt.  In the case of service by mail,  such service shall be
deemed  complete  upon  reasonable  proof of receipt.  The address and facsimile
number to which,  and person to whose  attention,  notices and demands  shall be
delivered  or sent  may be  changed  from  time to time  by  notice  served,  as
hereinabove provided, by any party upon the other party.


               The current addresses and facsimile numbers of the parties are:


                           If to the Employee:

                           C.D. Siegfried
                           c/o J.R.S. Exploration Company Limited


                                      -9-

<PAGE>

                           4750 30th Street S.E.
                           Calgary, Alberta T2B271
                           Telecopier No.: (403) 264-0478

                           If to the Company:
                           J.R.S. Exploration Company Limited
                           4750 30th Street S.E.
                           Calgary, Alberta T2B271
                           Telecopier No.: (403) 264-0478
                           Attention: Chief Financial Officer

                           with copies to:

                           3-D Geophysical, Inc.
                           599 Lexington Avenue
                                   Suite 4102
                           New York, New York 10022
                           Telecopier No.: (212) 317-9230
                           Attention: Joel Friedman, Chairman

                                    -and-

                           Kramer, Levin, Naftalis & Frankel
                           919 Third Avenue
                           New York, New York 10022
                           Telecopier No.: (212) 715-8000
                           Attention: Peter S. Kolevzon, Esq.


         9.2 Entire  Agreement;  Amendment.  This Agreement  contains the entire
agreement between the parties  respecting the subject matter hereof,  merges all
prior  negotiations,  agreements  and  understandings,  if any,  respecting  the
subject  matter hereof and states in full all  representations,  warranties  and
agreements which have induced this Agreement.  Each party agrees that in dealing
with third parties no contrary  representations will be made. This Agreement may
not be amended, modified or otherwise changed orally but only by an agreement in
writing  signed  by  the  party  against  whom  enforcement  of  any  amendment,
modification or change is sought.


                                      -10-

<PAGE>

         9.3 Assignment;  Binding Nature; Assumption. This Agreement shall inure
to the benefit of and be enforceable  by, and may be assigned by the Company to,
any purchaser of all or substantially  all of the Company's  business or assets,
any  successor  to the  Company  or any  assignee  thereof  (whether  direct  or
indirect,  by purchase,  merger,  consolidation or otherwise).  The Company will
require any such purchaser,  successor or assignee to expressly assume and agree
to perform  this  Agreement  in the same  manner and to the same extent that the
Company  would be  required  to perform it if no such  purchase,  succession  or
assignment  had taken place.  This Agreement may not be assigned by the Employee
without the prior written consent of the Company.

         9.4  Nonwaiver.  No  waiver  by any  party of any  term,  provision  or
covenant  contained in this Agreement (or any breach thereof) shall be effective
unless it is in writing executed by the party against which such waiver is to be
enforced;  no waiver  shall be deemed or  construed  as a further or  continuing
waiver of any such term, provision or covenant (or breach) on any other occasion
or as a waiver of any other term, provision or covenant (or of the breach of any
other term,  provision or covenant)  contained in this  Agreement on the same or
any other occasion.


         9.5 Remedies.  The remedies provided for or permitted by this Agreement
shall be  cumulative  and the  exercise by any party of any remedy  provided for
herein or otherwise  available  shall not preclude the  assertion or exercise by
such  party of any  other  right or remedy  provided  for  herein  or  otherwise
available.


                                      -11-

<PAGE>

         9.6  Headings.   The  headings  in  this  Agreement  are  inserted  for
convenience only and shall not constitute a part hereof.


         9.7  Construction.  In this  Agreement (i) words  denoting the singular
include  the plural and vice  versa,  (ii) "it" or "its" or words  denoting  any
gender include all genders,  (iii) any reference herein to a Section refers to a
Section of the Agreement,  unless  otherwise  stated,  (iv) when calculating the
period of time within or  following  which any act is to be done or steps taken,
the date which is the reference day in calculating such period shall be excluded
and if the last day of such period is not a business  day, then the period shall
end on the next day which is a  business  day,  and (v) all dollar  amounts  are
expressed in Canadian funds.


         9.8 Governing Law. This  Agreement  shall be governed by, and construed
and enforced in accordance with, the laws of the Province of Alberta  applicable
to contracts made and to be entirely performed therein.


         9.9  Counterparts.  For the  convenience of the parties,  any number of
counterparts  hereof may be executed,  each such executed  counterpart  shall be
deemed an original and all such  counterparts  together shall constitute one and
the same instrument.


         9.10  Termination of Existing  Employment  Agreement.  On the Effective
Date, the oral employment  agreement  between the Company and the Employee shall
automatically terminate and be of no


                                                       -12-

<PAGE>

further  force or effect and the  Employee  shall not be entitled to any further
payment pursuant thereto.















                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK.]





                                      -13-

<PAGE>


               IN WITNESS WHEREOF, the parties hereto have caused this Agreement
to be duly executed as of the date and year first written above.

                                      J.R.S. EXPLORATION COMPANY LIMITED


                                      By /s/ Ronald L. Koons
                                      ------------------------------
                                        Name:  Ronald L. Koons
                                        Title: Vice President



                                      EMPLOYEE:

                                        /s/ C.D. Siegfried
                                      ------------------------------
                                        C.D. Siegfried



                                      -14-

                            NON-COMPETITION AGREEMENT


         NON-COMPETITION  AGREEMENT (this  "Agreement")  dated as of January 27,
1997 by D.E. Janveau (the "Seller") for the benefit of 3-D Geophysical,  Inc., a
Delaware  corporation  ("3-D"),  and 3-D Geophysical of Canada, Inc., a Canadian
corporation ("3-D Canada").


         WHEREAS,  the  Seller has been an  executive  officer  and an  indirect
shareholder  of the  Company  for a  number  of  years  and  was  active  in the
management of the business and affairs of the Company;


         WHEREAS, all of the outstanding capital stock of the J.R.S. Exploration
Company Limited an Alberta corporation (the "Company"), has been acquired by 3-D
pursuant to that certain Stock Purchase  Agreement dated as of December 10, 1996
by and among 3-D,  3-D Canada,  the  Seller,  Gladys  Mueller  and W.G.  Mueller
(collectively, the "Vendors")(the "Stock Purchase Agreement");


         WHEREAS,  the Seller  acknowledges  that 3-D and 3-D Canada have paid a
substantial  price  to  acquire  the  Company  from the  Vendors,  and it is the
intention  of 3-D,  3-D Canada and the Vendors  (including  the Seller) that the
Company shall be entitled  exclusively  to the benefits of the  goodwill,  trade
secrets,  proprietary  rights,  know-how and  customer and client  relationships
heretofore established,  developed and maintained by the Company, whether or not
through the services or efforts of


<PAGE>

the Seller as an  executive  officer,  employee or indirect  shareholder  of the
Company; and

         WHEREAS,  to induce  3-D and 3-D  Canada  to enter  the Stock  Purchase
Agreement,  the  Seller  agreed  that at the  Closing  under the Stock  Purchase
Agreement it would enter into this  Agreement not to compete with the Company on
the terms and conditions set forth below;


         NOW,  THEREFORE,  in consideration of the premises,  the acquisition by
3-D and 3-D  Canada  of all of the  outstanding  capital  stock  of the  Company
pursuant to the Stock Purchase  Agreement,  the Seller,  intending to be legally
bound, hereby agrees as follows:


         Section 1.  Restrictive Covenants.


         1.1  Covenant  Not to Compete.  For a period of five (5) years from the
date of this Agreement,  the Seller will not in any way, directly or indirectly,
as an agent, employee, officer, director,  stockholder,  partner or otherwise of
any  corporation,  partnership  or other venture or enterprise  compete with the
Company, 3-D or any of their respective subsidiaries in the provision of seismic
data  acquisition  or  analysis  services  or any  services  related  thereto (a
"Competing  Business") within the territorial limits of the Province of Alberta,
the other provinces and territories of Canada,  the United States of America and
the countries forming part of Central and South America.


                                       -2-

<PAGE>

         1.2 Non-Solicitation  Covenant. For a period of four (4) years from the
date of this Agreement,  the Seller shall not solicit, sell to or contract with,
on behalf of the Seller or on behalf of any  Competing  Business,  any person or
entity to which the Company or any subsidiary of the Company shall have provided
seismic data  acquisition or analysis  services at any time during such four (4)
year period.


         1.3 Remedies.  The Seller hereby agrees that all  restrictions  imposed
upon the Seller  hereunder are reasonable,  fair and valid,  and all defenses to
the strict enforcement of the provisions hereof are hereby waived by the Seller.
The Seller further agrees that in the event of a breach or threatened  breach of
any of the covenants contained in this Section 1, the Company's remedy at law is
likely to be  inadequate  and that  accordingly  the Company will be entitled to
obtain an  injunction  or other  equitable  relief with regard  thereto  without
proving damages or that damages would not constitute an adequate remedy.  If the
final  judgment of a court of competent  jurisdiction  declares that any term or
provision  of this Section 1 is invalid or  unenforceable,  in whole or in part,
the parties hereto agree that the court making the  determination  of invalidity
or  unenforceability  shall have the power to, and is hereby directed to, reduce
the scope,  duration or area of the term or provision by deleting specific words
or phrases as necessary to comply with  applicable law or to be enforceable by a
court of competent  jurisdiction  or by replacing  any invalid or  unenforceable
term or provision with a term or provision that is valid and enforceable


                                       -3-

<PAGE>

and  that  comes  closest  to  expressing  the  intention  of  the  invalid  and
unenforceable  term or provision,  and this Agreement shall be enforceable as so
modified.

         2.   Miscellaneous Provisions.


         2.1 Notices. All notices and demands of any kind which any party hereto
may be  required or desire to serve upon  another  party under the terms of this
Agreement shall be in writing and shall be served upon such other party:  (a) by
personal  service upon such other party at such other party's  address set forth
below in this  Section  2.1; or (b) by mailing a copy  thereof by  certified  or
registered mail, postage prepaid,  with return receipt  requested,  addressed to
such other  party at the  address of such  other  party set forth  below in this
Section 2.1; or (c) by sending a copy thereof by Federal  Express or  equivalent
courier  service,  addressed  to such other  party at the  address of such other
party set forth below in this  Section  2.1; or (d) by sending a copy thereof by
facsimile  to such other party at the  facsimile  number,  if any, of such other
party set forth below in this Section 2.1.


               In case of  service  by Federal  Express  or  equivalent  courier
service or by facsimile  or by personal  service,  such service  shall be deemed
complete  upon  receipt.  In the case of service by mail,  such service shall be
deemed  complete  upon  reasonable  proof of receipt.  The address and facsimile
number to which, and person to whose attention, notices and demands shall


                                       -4-

<PAGE>

be  delivered  or sent may be  changed  from time to time by notice  served,  as
hereinabove provided, by any party upon the other party.


               The current  addresses and facsimile  numbers of the parties are:
If to the Seller: D.E. Janveau c/o J.R.S.  Exploration Company Limited 4750 30th
Street S.E. Calgary, Alberta T2B271 Telecopier No.: (403) 264-0478

                               If to the Company:

                               J.R.S. Exploration Company Limited
                               4750 30th Street S.E.
                               Calgary, Alberta T2B271
                               Attention:  Chief Financial Officer
                               Telecopier No.: (403) 264-0478

                                 with copies to:
                               3-D Geophysical, Inc.
                               599 Lexington Avenue
                                   Suite 4102
                               New York, New York 10022
                               Telecopier No.: (212) 317-9230
                               Attention: Joel Friedman, Chairman

                                      -and-

                               Kramer, Levin, Naftalis & Frankel
                               919 Third Avenue
                               New York, New York 10022
                               Telecopier No.: (212) 715-8000
                               Attention: Peter S. Kolevzon, Esq.


         2.2 Entire  Agreement;  Amendment.  This Agreement  contains the entire
agreement between the parties  respecting the subject matter hereof,  merges all
prior  negotiations,  agreements  and  understandings,  if any,  respecting  the
subject  matter hereof and states in full all  representations,  warranties  and
agreements


                                       -5-

<PAGE>

which have induced this Agreement.  Each party agrees that in dealing with third
parties no contrary  representations  will be made.  This  Agreement  may not be
amended,  modified  or  otherwise  changed  orally but only by an  agreement  in
writing  signed  by  the  party  against  whom  enforcement  of  any  amendment,
modification or change is sought.


         2.3 Assignment;  Binding Nature; Assumption. This Agreement shall inure
to the benefit of and be enforceable by, and may be assigned in whole or in part
by 3-D and 3-D Canada  to,  any  purchaser  of all or  substantially  all of the
business or assets of the  Company,  3-D or 3-D  Canada,  any  successor  to the
Company,  3-D or 3-D Canada or any assignee thereof (whether direct or indirect,
by purchase,  merger,  consolidation  or  otherwise).  This Agreement may not be
assigned by the Seller without the prior written consent of 3-D.

         2.4  Nonwaiver.  No  waiver  by any  party of any  term,  provision  or
covenant  contained in this Agreement (or any breach thereof) shall be effective
unless it is in writing executed by the party against which such waiver is to be
enforced;  no waiver  shall be deemed or  construed  as a further or  continuing
waiver of any such term, provision or covenant (or breach) on any other occasion
or as a waiver of any other term, provision or covenant (or of the breach of any
other term,  provision or covenant)  contained in this  Agreement on the same or
any other occasion.

         2.5 Remedies.  The remedies provided for or permitted by this Agreement
shall be cumulative and the exercise by any party


                                       -6-

<PAGE>

of any remedy provided for herein or otherwise  available shall not preclude the
assertion  or exercise by such party of any other right or remedy  provided  for
herein or otherwise available.


         2.6  Headings.   The  headings  in  this  Agreement  are  inserted  for
convenience only and shall not constitute a part hereof.


         2.7  Construction.  In this  Agreement (i) words  denoting the singular
include  the plural and vice  versa,  (ii) "it" or "its" or words  denoting  any
gender include all genders,  (iii) any reference herein to a Section refers to a
Section of the Agreement,  unless  otherwise  stated,  (iv) when calculating the
period of time within or  following  which any act is to be done or steps taken,
the date which is the reference day in calculating such period shall be excluded
and if the last day of such period is not a business  day, then the period shall
end on the next day which is a  business  day,  and (v) all dollar  amounts  are
expressed in Canadian funds.


         2.8 Governing Law. This  Agreement  shall be governed by, and construed
and enforced in accordance with, the laws of the Province of Alberta  applicable
to contracts made and to be entirely performed therein.


         2.9  Counterparts.  For the  convenience of the parties,  any number of
counterparts  hereof may be executed,  each such executed  counterpart  shall be
deemed an original and all such  counterparts  together shall constitute one and
the same instrument.


                                       -7-

<PAGE>


               IN WITNESS  WHEREOF,  the Seller has executed and delivered  this
Agreement   as  of  the   date   and   year   first   written   above.   

                                               SELLER:
 

                                               /s/ D.E. Janveau
                                               ------------------- 


                                       -8-

                            NON-COMPETITION AGREEMENT


         NON-COMPETITION  AGREEMENT (this  "Agreement")  dated as of January 27,
1997 by W.G. Mueller (the "Seller") for the benefit of 3-D Geophysical,  Inc., a
Delaware  corporation  ("3-D"),  and 3-D Geophysical of Canada, Inc., a Canadian
corporation ("3-D Canada").


         WHEREAS,  the  Seller has been an  executive  officer  and an  indirect
shareholder  of the  Company  for a  number  of  years  and  was  active  in the
management of the business and affairs of the Company;


         WHEREAS, all of the outstanding capital stock of the J.R.S. Exploration
Company Limited an Alberta corporation (the "Company"), has been acquired by 3-D
pursuant to that certain Stock Purchase  Agreement dated as of December 10, 1996
by and among 3-D,  3-D  Canada,  D.E.  Janveau,  Gladys  Mueller  and the Seller
(collectively, the "Vendors") (the "Stock Purchase Agreement");


         WHEREAS,  the Seller  acknowledges  that 3-D and 3-D Canada have paid a
substantial  price  to  acquire  the  Company  from the  Vendors,  and it is the
intention  of 3-D,  3-D Canada and the Vendors  (including  the Seller) that the
Company shall be entitled  exclusively  to the benefits of the  goodwill,  trade
secrets,  proprietary  rights,  know-how and  customer and client  relationships
heretofore established,  developed and maintained by the Company, whether or not
through the services or efforts of


<PAGE>

the Seller as an  executive  officer,  employee or indirect  shareholder  of the
Company; and

         WHEREAS,  to induce  3-D and 3-D  Canada  to enter  the Stock  Purchase
Agreement,  the  Seller  agreed  that at the  Closing  under the Stock  Purchase
Agreement it would enter into this  Agreement not to compete with the Company on
the terms and conditions set forth below;


         NOW,  THEREFORE,  in consideration of the premises,  the acquisition by
3-D and 3-D  Canada  of all of the  outstanding  capital  stock  of the  Company
pursuant to the Stock Purchase  Agreement,  the Seller,  intending to be legally
bound, hereby agrees as follows:


         Section 1.  Restrictive Covenants.


         1.1  Covenant  Not to Compete.  For a period of five (5) years from the
date of this Agreement,  the Seller will not in any way, directly or indirectly,
as an agent, employee, officer, director,  stockholder,  partner or otherwise of
any  corporation,  partnership  or other venture or enterprise  compete with the
Company, 3-D or any of their respective subsidiaries in the provision of seismic
data  acquisition  or  analysis  services  or any  services  related  thereto (a
"Competing  Business") within the territorial limits of the Province of Alberta,
the other provinces and territories of Canada,  the United States of America and
the countries forming part of Central and South America.


                                       -2-

<PAGE>

         1.2 Non-Solicitation  Covenant. For a period of four (4) years from the
date of this Agreement,  the Seller shall not solicit, sell to or contract with,
on behalf of the Seller or on behalf of any  Competing  Business,  any person or
entity to which the Company or any subsidiary of the Company shall have provided
seismic data  acquisition or analysis  services at any time during such four (4)
year period.


         1.3 Remedies.  The Seller hereby agrees that all  restrictions  imposed
upon the Seller  hereunder are reasonable,  fair and valid,  and all defenses to
the strict enforcement of the provisions hereof are hereby waived by the Seller.
The Seller further agrees that in the event of a breach or threatened  breach of
any of the covenants contained in this Section 1, the Company's remedy at law is
likely to be  inadequate  and that  accordingly  the Company will be entitled to
obtain an  injunction  or other  equitable  relief with regard  thereto  without
proving damages or that damages would not constitute an adequate remedy.  If the
final  judgment of a court of competent  jurisdiction  declares that any term or
provision  of this Section 1 is invalid or  unenforceable,  in whole or in part,
the parties hereto agree that the court making the  determination  of invalidity
or  unenforceability  shall have the power to, and is hereby directed to, reduce
the scope,  duration or area of the term or provision by deleting specific words
or phrases as necessary to comply with  applicable law or to be enforceable by a
court of competent  jurisdiction  or by replacing  any invalid or  unenforceable
term or provision with a term or provision that is valid and enforceable


                                       -3-

<PAGE>

and  that  comes  closest  to  expressing  the  intention  of  the  invalid  and
unenforceable  term or provision,  and this Agreement shall be enforceable as so
modified.

         2.   Miscellaneous Provisions.


         2.1 Notices. All notices and demands of any kind which any party hereto
may be  required or desire to serve upon  another  party under the terms of this
Agreement shall be in writing and shall be served upon such other party:  (a) by
personal  service upon such other party at such other party's  address set forth
below in this  Section  2.1; or (b) by mailing a copy  thereof by  certified  or
registered mail, postage prepaid,  with return receipt  requested,  addressed to
such other  party at the  address of such  other  party set forth  below in this
Section 2.1; or (c) by sending a copy thereof by Federal  Express or  equivalent
courier  service,  addressed  to such other  party at the  address of such other
party set forth below in this  Section  2.1; or (d) by sending a copy thereof by
facsimile  to such other party at the  facsimile  number,  if any, of such other
party set forth below in this Section 2.1.


               In case of  service  by Federal  Express  or  equivalent  courier
service or by facsimile  or by personal  service,  such service  shall be deemed
complete  upon  receipt.  In the case of service by mail,  such service shall be
deemed  complete  upon  reasonable  proof of receipt.  The address and facsimile
number to which, and person to whose attention, notices and demands shall


                                       -4-

<PAGE>

be  delivered  or sent may be  changed  from time to time by notice  served,  as
hereinabove provided, by any party upon the other party.


               The current addresses and facsimile numbers of the parties are:

                           If to the Seller:

                           W.G. Mueller
                           c/o J.R.S. Exploration Company Limited
                           4750 30th Street S.E.
                           Calgary, Alberta T2B271
                           Telecopier No.: (403) 264-0478

                           If to the Company:

                           J.R.S. Exploration Company Limited
                           4750 30th Street S.E.
                           Calgary, Alberta T2B271
                           Attention:  Chief Financial Officer
                           Telecopier No.: (403) 264-0478

                                 with copies to:

                              3-D Geophysical, Inc.
                              599 Lexington Avenue
                                   Suite 4102
                            New York, New York 10022
                            Telecopier No.: (212) 317-9230
                            Attention: Joel Friedman, Chairman

                                      -and-

                            Kramer, Levin, Naftalis & Frankel
                            919 Third Avenue
                            New York, New York 10022
                            Telecopier No.: (212) 715-8000
                            Attention: Peter S. Kolevzon, Esq.


         2.2 Entire  Agreement;  Amendment.  This Agreement  contains the entire
agreement between the parties  respecting the subject matter hereof,  merges all
prior  negotiations,  agreements  and  understandings,  if any,  respecting  the
subject  matter hereof and states in full all  representations,  warranties  and
agreements


                                       -5-

<PAGE>

which have induced this Agreement.  Each party agrees that in dealing with third
parties no contrary  representations  will be made.  This  Agreement  may not be
amended,  modified  or  otherwise  changed  orally but only by an  agreement  in
writing  signed  by  the  party  against  whom  enforcement  of  any  amendment,
modification or change is sought.


         2.3 Assignment;  Binding Nature; Assumption. This Agreement shall inure
to the benefit of and be enforceable by, and may be assigned in whole or in part
by 3-D and 3-D Canada  to,  any  purchaser  of all or  substantially  all of the
business or assets of the  Company,  3-D or 3-D  Canada,  any  successor  to the
Company,  3-D or 3-D Canada or any assignee thereof (whether direct or indirect,
by purchase,  merger,  consolidation  or  otherwise).  This Agreement may not be
assigned by the Seller without the prior written consent of 3-D.

         2.4  Nonwaiver.  No  waiver  by any  party of any  term,  provision  or
covenant  contained in this Agreement (or any breach thereof) shall be effective
unless it is in writing executed by the party against which such waiver is to be
enforced;  no waiver  shall be deemed or  construed  as a further or  continuing
waiver of any such term, provision or covenant (or breach) on any other occasion
or as a waiver of any other term, provision or covenant (or of the breach of any
other term,  provision or covenant)  contained in this  Agreement on the same or
any other occasion.

         2.5 Remedies.  The remedies provided for or permitted by this Agreement
shall be cumulative and the exercise by any party


                                       -6-

<PAGE>

of any remedy provided for herein or otherwise  available shall not preclude the
assertion  or exercise by such party of any other right or remedy  provided  for
herein or otherwise available.


         2.6  Headings.   The  headings  in  this  Agreement  are  inserted  for
convenience only and shall not constitute a part hereof.


         2.7  Construction.  In this  Agreement (i) words  denoting the singular
include  the plural and vice  versa,  (ii) "it" or "its" or words  denoting  any
gender include all genders,  (iii) any reference herein to a Section refers to a
Section of the Agreement,  unless  otherwise  stated,  (iv) when calculating the
period of time within or  following  which any act is to be done or steps taken,
the date which is the reference day in calculating such period shall be excluded
and if the last day of such period is not a business  day, then the period shall
end on the next day which is a  business  day,  and (v) all dollar  amounts  are
expressed in Canadian funds.


         2.8 Governing Law. This  Agreement  shall be governed by, and construed
and enforced in accordance with, the laws of the Province of Alberta  applicable
to contracts made and to be entirely performed therein.


         2.9  Counterparts.  For the  convenience of the parties,  any number of
counterparts  hereof may be executed,  each such executed  counterpart  shall be
deemed an original and all such  counterparts  together shall constitute one and
the same instrument.


                                       -7-

<PAGE>

               IN WITNESS  WHEREOF,  the Seller has executed and delivered  this
Agreement as of the date and year first written above.

                                                      SELLER:

                                                      /s/ W.G. Mueller
                                                      ---------------------
                                                      W.G.Mueller


                                       -8-


                            NON-COMPETITION AGREEMENT


         NON-COMPETITION  AGREEMENT (this  "Agreement")  dated as of January 27,
1997 by C.D.  Siegfried  (the  "Employee")  for the benefit of 3-D  Geophysical,
Inc., a Delaware  corporation  ("3-D"),  and 3-D Geophysical of Canada,  Inc., a
Canadian corporation ("3-D Canada").


         WHEREAS,  the Employee has been an employee of the Company for a number
of years;


         WHEREAS, all of the outstanding capital stock of the J.R.S. Exploration
Company Limited an Alberta corporation (the "Company"), has been acquired by 3-D
pursuant to that certain Stock Purchase  Agreement dated as of December 10, 1996
by and among 3-D, 3-D Canada,  D.E.  Janveau,  Gladys  Mueller and W.G.  Mueller
(collectively, the "Vendors")(the "Stock Purchase Agreement");


         WHEREAS, the Employee  acknowledges that 3-D and 3-D Canada have paid a
substantial  price  to  acquire  the  Company  from the  Vendors,  and it is the
intention of 3-D, 3-D Canada and the Vendors that the Company  shall be entitled
exclusively to the benefits of the goodwill, trade secrets,  proprietary rights,
know-how and customer and client relationships heretofore established, developed
and maintained by the Company, whether or not through the services or efforts of
the Employee as an employee of the Company; and


<PAGE>

         WHEREAS,  to induce  3-D and 3-D  Canada  to enter  the Stock  Purchase
Agreement,  the  Employee  agreed that at the Closing  under the Stock  Purchase
Agreement it would enter into this  Agreement not to compete with the Company on
the terms and conditions set forth below;


         NOW,  THEREFORE,  in consideration of the premises,  the acquisition by
3-D and 3-D  Canada  of all of the  outstanding  capital  stock  of the  Company
pursuant to the Stock Purchase Agreement, the Employee,  intending to be legally
bound, hereby agrees as follows:


         Section 1.  Restrictive Covenants.


         1.1  Covenant Not to Compete.  During the Term (as defined  therein) of
the  Employment  Agreement  of even date  herewith  between  the Company and the
Employee  (the  "Employment  Agreement"),  the  Employee  will  not in any  way,
directly or indirectly, as an agent, employee,  officer, director,  stockholder,
partner  or  otherwise  of any  corporation,  partnership  or other  venture  or
enterprise compete with the Company, 3-D or any of their respective subsidiaries
in the  provision  of seismic  data  acquisition  or  analysis  services  or any
services related thereto (a "Competing  Business") within the territorial limits
of the Province of Alberta,  the other provinces and territories of Canada,  the
United  States of America and the  countries  forming  part of Central and South
America.


                                       -2-

<PAGE>

         1.2  Non-Solicitation  Covenant.  During  the  Term  of the  Employment
Agreement  and for a  period  of one  (1)  year  after  the  termination  of the
Employment Agreement for any reason whatsoever,  the Employee shall not solicit,
sell to or  contract  with,  on  behalf  of the  Employee  or on  behalf  of any
Competing Business,  any person or entity to which the Company or any subsidiary
of the Company shall have provided seismic data acquisition or analysis services
at any time during such four (4) year period.


         1.3 Remedies.  The Employee hereby agrees that all restrictions imposed
upon the Employee hereunder are reasonable,  fair and valid, and all defenses to
the  strict  enforcement  of the  provisions  hereof  are  hereby  waived by the
Employee.  The  Employee  further  agrees  that  in the  event  of a  breach  or
threatened  breach of any of the  covenants  contained  in this  Section  1, the
Company's  remedy at law is likely to be  inadequate  and that  accordingly  the
Company will be entitled to obtain an injunction or other equitable  relief with
regard thereto  without  proving damages or that damages would not constitute an
adequate  remedy.  If the final  judgment of a court of  competent  jurisdiction
declares   that  any  term  or  provision  of  this  Section  1  is  invalid  or
unenforceable,  in whole or in part,  the  parties  hereto  agree that the court
making the determination of invalidity or unenforceability  shall have the power
to, and is hereby directed to, reduce the scope, duration or area of the term or
provision  by deleting  specific  words or phrases as  necessary  to comply with
applicable law or to be enforceable by a


                                       -3-

<PAGE>

court of competent  jurisdiction  or by replacing  any invalid or  unenforceable
term or provision  with a term or provision  that is valid and  enforceable  and
that comes closest to expressing the intention of the invalid and  unenforceable
term or provision, and this Agreement shall be enforceable as so modified.

         2.   Miscellaneous Provisions.


         2.1 Notices. All notices and demands of any kind which any party hereto
may be  required or desire to serve upon  another  party under the terms of this
Agreement shall be in writing and shall be served upon such other party:  (a) by
personal  service upon such other party at such other party's  address set forth
below in this  Section  2.1; or (b) by mailing a copy  thereof by  certified  or
registered mail, postage prepaid,  with return receipt  requested,  addressed to
such other  party at the  address of such  other  party set forth  below in this
Section 2.1; or (c) by sending a copy thereof by Federal  Express or  equivalent
courier  service,  addressed  to such other  party at the  address of such other
party set forth below in this  Section  2.1; or (d) by sending a copy thereof by
facsimile  to such other party at the  facsimile  number,  if any, of such other
party set forth below in this Section 2.1.


               In case of  service  by Federal  Express  or  equivalent  courier
service or by facsimile  or by personal  service,  such service  shall be deemed
complete  upon  receipt.  In the case of service by mail,  such service shall be
deemed complete upon


                                       -4-

<PAGE>

reasonable  proof of receipt.  The address and  facsimile  number to which,  and
person to whose attention, notices and demands shall be delivered or sent may be
changed from time to time by notice  served,  as  hereinabove  provided,  by any
party upon the other party.


               The current addresses and facsimile numbers of the parties are:

                           If to the Employee:

                           C.D. Siegfried
                           c/o J.R.S. Exploration Company Limited
                           4750 30th Street S.E.
                           Calgary, Alberta T2B271
                           Telecopier No.: (403) 264-0478

                           If to the Company:

                           J.R.S. Exploration Company Limited
                           4750 30th Street S.E.
                           Calgary, Alberta T2B271
                           Attention:  Chief Financial Officer
                           Telecopier No.: (403) 264-0478

                           with copies to:

                           3-D Geophysical, Inc.
                           599 Lexington Avenue
                                 Suite 4102
                           New York, New York 10022
                           Telecopier No.: (212) 317-9230
                           Attention:  Joel Friedman, Chairman

                                      -and-

                           Kramer, Levin, Naftalis & Frankel
                           919 Third Avenue
                           New York, New York 10022
                           Telecopier No.: (212) 715-8000
                           Attention: Peter S. Kolevzon, Esq.


         2.2 Entire  Agreement;  Amendment.  This Agreement  contains the entire
agreement between the parties  respecting the subject matter hereof,  merges all
prior negotiations, agreements and


                                       -5-

<PAGE>

understandings,  if any, respecting the subject matter hereof and states in full
all   representations,   warranties  and  agreements  which  have  induced  this
Agreement.  Each party  agrees  that in dealing  with third  parties no contrary
representations  will be made.  This  Agreement may not be amended,  modified or
otherwise changed orally but only by an agreement in writing signed by the party
against whom enforcement of any amendment, modification or change is sought.


         2.3 Assignment;  Binding Nature; Assumption. This Agreement shall inure
to the benefit of and be enforceable by, and may be assigned in whole or in part
by 3-D and 3-D Canada  to,  any  purchaser  of all or  substantially  all of the
business or assets of the  Company,  3-D or 3-D  Canada,  any  successor  to the
Company,  3-D or 3-D Canada or any assignee thereof (whether direct or indirect,
by purchase,  merger,  consolidation  or  otherwise).  This Agreement may not be
assigned by the Employee without the prior written consent of 3-D.

         2.4  Nonwaiver.  No  waiver  by any  party of any  term,  provision  or
covenant  contained in this Agreement (or any breach thereof) shall be effective
unless it is in writing executed by the party against which such waiver is to be
enforced;  no waiver  shall be deemed or  construed  as a further or  continuing
waiver of any such term, provision or covenant (or breach) on any other occasion
or as a waiver of any other term, provision or covenant (or of the breach of any
other term,  provision or covenant)  contained in this  Agreement on the same or
any other occasion.


                                       -6-

<PAGE>

         2.5 Remedies.  The remedies provided for or permitted by this Agreement
shall be  cumulative  and the  exercise by any party of any remedy  provided for
herein or otherwise  available  shall not preclude the  assertion or exercise by
such  party of any  other  right or remedy  provided  for  herein  or  otherwise
available.


         2.6  Headings.   The  headings  in  this  Agreement  are  inserted  for
convenience only and shall not constitute a part hereof.


         2.7  Construction.  In this  Agreement (i) words  denoting the singular
include  the plural and vice  versa,  (ii) "it" or "its" or words  denoting  any
gender include all genders,  (iii) any reference herein to a Section refers to a
Section of the Agreement,  unless  otherwise  stated,  (iv) when calculating the
period of time within or  following  which any act is to be done or steps taken,
the date which is the reference day in calculating such period shall be excluded
and if the last day of such period is not a business  day, then the period shall
end on the next day which is a  business  day,  and (v) all dollar  amounts  are
expressed in Canadian funds.


         2.8 Governing Law. This  Agreement  shall be governed by, and construed
and enforced in accordance with, the laws of the Province of Alberta  applicable
to contracts made and to be entirely performed therein.


         2.9  Counterparts.  For the  convenience of the parties,  any number of
counterparts hereof may be executed, each such executed


                                       -7-

<PAGE>


counterpart shall be deemed an original and all such counterparts together shall
constitute one and the same instrument.








                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK.]




                                       -8-

<PAGE>


               IN WITNESS WHEREOF,  the Employee has executed and delivered this
Agreement as of the date and year first written above.

                                              EMPLOYEE:


                                              /s/ C.D. Siegfried
                                              --------------------
                                              C.D. Siegfried


                                       -9-


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