About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

GCAGS Transactions

Abstract


Gulf Coast Association of Geological Societies Transactions
Vol. 46 (1996), Pages 472-472

Abstract: Petrophysical Properties and Geology of Selected Intervals in the Frio Formation, Stratton Field, South Texas for Modeling Interwell Seismic Logging Responses

Hughbert A. Collier (1), Jorge 0. Barra (2)

ABSTRACT

Seismic or continuity logging consists of Previous HitlocatingNext Hit a seismic source in one Previous HitboreholeNext Hit near or in a low-velocity layer and deploying a detector array in a second Previous HitboreholeTop. Detection of guided waves transmitted between the two wells indicates bed connectivity. The guided wave signatures are either leaky modes or normal modes (or both).

The technique has numerous applications in various types of heterogeneous geological environments, including many Gulf Coast gas reservoirs. It can be used to determine the continuity of beds between wells, estimate and locate variations in the thickness of beds, and estimate the average rock physical properties of the beds.

Stratton field was selected as the Gulf Coast gas-play type field for a project to model interwell seismic logging responses. Stratton is a mature gas field located in the south Texas Gulf Coast, about 30 miles southwest of Corpus Christi. It encompasses over 120,000 acres in portions of Kleberg, Nueces, and Jim Wells counties. Stratton is one of 29 fields in the Frio Formation fluvial-deltaic play associated with the Vicksburg fault zone along the Texas Gulf Coast Basin.

This poster presentation explains the technique of interwell seismic logging, documents the petrophysical properties and geology of intervals in the upper and middle Frio, and presents the results of the forward modeling tests.

End_of_Record - Last_Page 472-------

ACKNOWLEDGMENTS AND ASSOCIATED FOOTNOTES

(1) Tarleton State University, Stephenville, TX

(2) Southwest Research Institute, San Antonio, TX

Copyright © 1999 by The Gulf Coast Association of Geological Societies