3-D GEOPHYSICAL INC

FY: Dec 31 1997

Q: Sep 30 1997

Q: Jun 30 1997

Q: Mar 31 1997

FY: Mar 31 1997

Q: Sep 30 1996

Q: Aug 14 1996

Q: Jul 25 1996

Q: May 15 1996

2,7

5,7

5,7

5,7

7

2,7

Current report pursuant to Section 13 or 15(d)

Certification of termination of registration of a class of securities (Section 12(g))

No description available

No description available

Prospectus filed under Rule 424(b)(1)

Amended Initial Registration Statement

Amended Initial Registration Statement

Registration (IPO) statement under Securities Act of 1933

Definitive Proxy Statement

WESTERN ATLAS INC

WESTERN ATLAS INC

3-D GEOPHYSICAL INC

WESTERN ATLAS INC

WESTERN ATLAS INC

WESTERN ATLAS INC

3-D GEOPHYSICAL INC

3-D GEOPHYSICAL INC

WESTERN ATLAS INC

3-D GEOPHYSICAL INC

3-D GEOPHYSICAL INC

WESTERN ATLAS INC

WESTERN ATLAS INC

3-D GEOPHYSICAL INC

WELLINGTON MANAGEMENT CO LLP

HEARTLAND ADVISORS INC

WELLINGTON MANAGEMENT CO LLP

ESSEX INVESTMENT MANAGEMENT CO INC

No description available