About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 68 (1984)

Issue: 4. (April)

First Page: 505

Last Page: 506

Title: Interpretive Previous HitSeismicNext Hit Previous HitModelingNext Hit in Anadarko Basin: ABSTRACT

Author(s): James Patrick McMahon

Abstract:

Previous HitSeismicNext Hit Previous HitforwardNext Hit Previous HitmodelingNext Hit is a powerful aid when interpreting Previous HitseismicNext Hit profiles of complex structure. Considered here is the frontal fault system that is the boundary between the Anadarko basin and the Wichita Mountains.

COCORP deep Previous HitseismicNext Hit reflection Previous HitdataNext Hit collected across the basin may reveal new evidence of thrust faulting in the frontal fault system. North-south lines 2 and 2a of the COCORP survey are interpreted using AIMSTM (Advanced Interpretive Previous HitModelingNext Hit System) installed on the University of Oklahoma's IBM 3081 computer. Line 2a stretches southward from the relatively undisturbed sedimentary rocks in the basin across the N85°W-trending frontal fault system to the south. The Previous HitmodelingNext Hit begins at the north end of line 2a because of the relatively simple structural geometry and well control in that area.

End_Page 505------------------------------

The initial Previous HitmodelingNext Hit began with an hypothesis based on well logs, COCORP Previous HitdataNext Hit, and other geologic information. After the subsurface structures were defined, depth and velocity plots were produced. Normal incidence rays were then traced from each horizon to specified shot points. The ray-tracing plot gives a good indication of the quality of resolution one can expect from a particular subsurface geometry. The synthetic profile was produced by first applying a broad-band pulse, then applying a Ricker wavelet to each trace. A gain function was applied to enhance the section for interpretation. Previous HitForwardNext Hit Previous HitseismicNext Hit Previous HitmodelingNext Hit in the Anadarko basin enhances interpretation by giving an idea of the Previous HitseismicTop resolution one can expect and letting the interpreter test a geologic hypothesis against the eismic profiles.

End_of_Article - Last_Page 506------------

Copyright 1997 American Association of Petroleum Geologists