Quick Search:    advanced search

GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help

This Article Figures Only Full Text Full Text (PDF) Submit a response Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Google Scholar Articles by Aktepe, S. Articles by Perez, R. GeoRef GeoRef Citation

Attribute expression of basement faulting—Time versus depth migration

University of Houston, USA

Roderick Perez

University of Oklahoma, Norman, USA

Corresponding author: kmarfurt{at}ou.edu

The usual focus of seismic exploration for hydrocarbons is to directly image structural, stratigraphic, and diagenetic features in the "soft" sedimentary sequence. However, understanding the geologic processes that gave rise to these shallow features often requires an understanding of the structural deformation of the more "rigid" basement. In the Fort Worth Basin of north Texas, the end product is usually prestack time-migrated sections which indicate that shallow faulting may be basement-controlled. However, there is some doubt as to whether the collapse features in the sedimentary section are controlled by what appear to be rhombochasms in the basement, or whether these rhombochasms are a velocity push-down artifact caused by infill of the collapse features by a slower velocity material. The goal of this study is to improve the image quality of such basement features by the use of more interpreter-driven detailed velocity analysis and depth versus time migration.