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)          November 17, 1997
                                                 -------------------------------



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


       Delaware                       33-99240                   13-3841601
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(State or Other Jurisdiction        (Commission                 (IRS Employer
         of Incorporation)          File Number)             Identification No.)



 8226 Park Meadows Drive,  Littleton, Colorado                          80124
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 (Address of principal executive offices)                             (Zip Code)


Registrant's telephone number, including area code:  (303) 858-0500



7076 South Alton Way, Building H, Englewood, Colorado                    80112 
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         (Former name or former address, if changed since last report.)


                       The Exhibit Index appears on Page 6
                                Page 1 of    pages.




Item 5.  Other Events.

         On November  17,  1997 (the  "Closing  Date"),  3-D  Geophysical,  Inc.
(together with its  wholly-owned  subsidiary,  Northern  Geophysical of America,
Inc., the "Registrant")  entered into a $30 million credit facility (the "Credit
Facility")  with Sanwa Business  Credit  Corporation  ("Sanwa").  Funding of the
Credit  Facility  occurred on November 18, 1997 with $10.1 million used to repay
the  Registrant's  outstanding debt to Wells Fargo Bank, N.A. under its existing
credit facility, which is being terminated.  The Credit Facility will be also be
used to finance the continued growth of the Registrant's business,  particularly
in Canada,  Alaska and Latin America.  The  Registrant  also repaid loans in the
aggregate of $850,000 plus interest to five persons: Joel Friedman,  Chairman of
the Board  ($125,000);  Wayne P.  Widynowski,  Executive  Vice  President  and a
director ($100,000); Ronald L. Koons, Vice President and Chief Financial Officer
($250,000);   Ralph  M.  Bahna,  a  director  ($125,000);  and  Lewis  Brazelton
($250,000).

         Under the Loan and Security  Agreement, dated  November 17, 1997,  (the
"Loan Agreement") Sanwa has provided the Registrant with a $10 million five-year
term loan (the "Term  Loan"),  a $10  million  credit line to be used to finance
capital  expenditures (the "Capex Loan") and a $10 million revolving credit line
(the "Revolving  Credit Loan") for five years. The Term Loan is payable in equal
monthly installments through and including November 1, 2002. The Term Loan bears
interest  at an annual  rate equal to the prime rate plus 1% or LIBOR plus 3.5%,
whichever the Registrant prefers.  Draws on the Capex Loan during each 12- month
period following the Closing Date will be combined into a single promissory note
at the end of each such period,  repayable  based upon a 60-month  amortization,
payable  in full at the end of five  years from the  Closing  Date.  The rate of
interest  for the Capex Loan is the same as those  described  above for the Term
Loan. The Revolving Credit Loan may be drawn down from time to time in an amount
not to exceed the lesser of (i) Ten Million Dollars  ($10,000,000)  and (ii) 80%
of the Registrant's "Eligible Accounts" (as defined in the Loan Agreement).  The
Revolving  Credit  Loan bears an  interest  at an annual rate equal to the prime
rate plus  0.5% or LIBOR  plus  2.75%,  whichever  the  Registrant  prefers.  In
addition to certain customary affirmative covenants, the Loan Agreement contains
restrictions  on the  Registrant  with  respect to (i)  declaring  or paying any
dividends or other  distributions  on its capital stock (or acquiring any of its
capital stock),  (ii) incurring Debt (as defined),  (iii) issuing capital stock,
(iv) entering into  transactions  with affiliates,  and (v) disposing of assets.
The  foregoing  summary of the Loan  Agreement  is  qualified in its entirety by
reference  to the Loan and  Security  Agreement  and other  agreements  relating
thereto, copies of which are attached as exhibits to this Current Report on Form
8-K.


                                Page 2 of    pages.




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

         (c)      Exhibits.

         10.1     Loan and Security Agreement between 3-D
                  Geophysical, Inc. and Sanwa Business Credit
                  Corporation, dated as of November 17, 1997.

         10.2     Term Note between Northern Geophysical of
                  America, Inc. and Sanwa Business Credit
                  Corporation, dated as of November 17, 1997.

         10.3     Security Agreement of 3-D Geophysical, Inc.
                  between 3-D Geophysical, Inc. and Sanwa
                  Business Credit Corporation, dated as of
                  November 17, 1997.

         10.4     Security Agreement between J.R.S. Exploration Company
                  Limited and Sanwa Business Credit Corporation,  dated
                  as of November 7, 1997.

         10.5     Trademark Security Agreement between 3-D
                  Geophysical, Inc. and Sanwa Business Credit
                  Corporation, dated as of November 17, 1997.

         10.6     Pledge Agreement between 3-D Geophysical, Inc.
                  and Sanwa Business Credit Corporation (with respect
                  to the capital stock of Northern Geophysical of
                  America, Inc.) dated as of November 17, 1997.

         10.7     Pledge Agreement between 3-D Geophysical, Inc.
                  and Sanwa Business Credit Corporation (with respect
                  to the capital stock of 3-D Geophysical of Canada,
                  Inc.) dated as of November 17, 1997.

         10.8     Pledge Agreement between 3-D Geophysical, Inc.
                  and Sanwa Business Credit Corporation (with respect
                  to the capital stock of 3-D Geophysical of Latin
                  America, Inc.) dated as of November 17, 1997.

         10.9     Pledge Agreement between 3-D Geophysical, Inc.
                  and Sanwa Business Credit Corporation (with respect
                  to the capital stock of Geoevaluaciones, S.A. de C.V.
                  and Procesos Interactivos Avanzados, S.A. de C.V.)
                  dated as of November 17, 1997.


                                Page 3 of    pages.



          10.10    Security Agreement  (Securities) between W.G. Mueller
                   Consulting  Services Ltd. and Sanwa  Business  Credit
                   Corporation  (with  respect to the  capital  stock of
                   J.R.S.  Exploration  Company  Limited)  dated  as  of
                   November 17, 1997.

          10.11    Security Agreement (Securities) between Jan Vo
                   Equities Ltd. and Sanwa Business Credit
                   Corporation (with respect to the capital stock
                   of J.R.S. Exploration Company Limited) dated as
                   of November 17, 1997.


                                Page 4 of    pages.



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



Date:  December 23, 1997


                                Page 5 of    pages.



                                  EXHIBIT INDEX

Exhibit                                                                    Page


10.1     Loan and Security Agreement between 3-D Geophysical, Inc. and
         Sanwa Business Credit  Corporation,  dated as of November 17,
         1997.

10.2     Term Note between Northern  Geophysical of America,  Inc. and
         Sanwa Business Credit  Corporation,  dated as of November 17,
         1997.

10.3     Security  Agreement  of 3-D  Geophysical,  Inc.  between  3-D
         Geophysical,  Inc.  and Sanwa  Business  Credit  Corporation,
         dated as of November 17, 1997.

10.4     Security Agreement between J.R.S. Exploration Company Limited
         and Sanwa Business Credit  Corporation,  dated as of November
         7, 1997.

10.5     Trademark  Security  Agreement between 3-D Geophysical,  Inc.
         and Sanwa Business Credit  Corporation,  dated as of November
         17, 1997.

10.6     Pledge  Agreement  between 3-D  Geophysical,  Inc.  and Sanwa
         Business  Credit  Corporation  (with  respect to the  capital
         stock of Northern  Geophysical of America,  Inc.) dated as of
         November 17, 1997.

10.7     Pledge  Agreement  between 3-D  Geophysical,  Inc.  and Sanwa
         Business  Credit  Corporation  (with  respect to the  capital
         stock  of  3-D  Geophysical  of  Canada,  Inc.)  dated  as of
         November 17, 1997.

10.8     Pledge  Agreement  between 3-D  Geophysical,  Inc.  and Sanwa
         Business  Credit  Corporation  (with  respect to the  capital
         stock of 3-D Geophysical of Latin America,  Inc.) dated as of
         November 17, 1997.

10.9     Pledge  Agreement  between 3-D  Geophysical,  Inc.  and Sanwa
         Business  Credit  Corporation  (with  respect to the  capital
         stock  of   Geoevaluaciones,   S.A.  de  C.V.   and  Procesos
         Interactivos  Avanzados,  S.A.  de C.V.) dated as of November
         17, 1997.

10.10    Security   Agreement   (Securities)   between  W.G.   Mueller
         Consulting   Services   Ltd.   and  Sanwa   Business   Credit
         Corporation  (with  respect  to the  capital  stock of J.R.S.
         Exploration Company Limited) dated as of November 17, 1997.

10.11    Security Agreement  (Securities) between Jan Vo Equities Ltd.
         and Sanwa Business  Credit  Corporation  (with respect to the
         capital stock of J.R.S. Exploration Company Limited) dated as
         of November 17, 1997.


                                Page 6 of    pages.