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Book Chapter

Jurassic Evaporites of The U.S. Gulf Coast: The Smackover-Buckner Contact

By
P. M. Harris
P. M. Harris
Gulf Oil Exploration and Production, Houston Technical Services Center, P. O. Box 36506, Houston, TX 77236
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C. A. Dodman
C. A. Dodman
Gulf Oil Exploration and Production, Houston Technical Services Center, P. O. Box 36506, Houston, TX 77236
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Published:
January 01, 1982

Abstract

Shallow-water carbonates of the Upper Jurassic Smackover Formation contain proven exploration targets throughout the U.S. Gulf Coast. Evaporites have played a role in Smackover reservoir development. Evaporites are found in the underlying Louann Salt, the overlying Buckner Formation, and within the Smackover itself. The Buckner has been important in three ways: 1) Buckner anhydrites and shales are important seals for Smackover reservoirs; commonly the Buckner inter-fingers with the reservoir at the updip limit of a field and as a result of basinward progradation, forms an impermeable cap; 2) during Buckner time early diagenesis of the uppermost Smackover occurred as brines were introduced into the lime sands of the Smackover from laterally adjacent tidal flats; and 3) thickness maps of the Buckner serve as a valuable exploration tool for the Smackover because porous facies are associated with Smackover highs underlying the Buckner thins. The stratigraphic relationship between the Smackover and Buckner is illustrated with conventional cores from a well in Columbia County, Arkansas.

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Contents

SEPM Core Workshop Notes

Depositional and Diagenetic Spectra of Evaporites - A Core Workshop

C. Robertson Handford
C. Robertson Handford
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Robert G. Loucks
Robert G. Loucks
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Graham R. Davies
Graham R. Davies
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SEPM Society for Sedimentary Geology
Volume
3
ISBN electronic:
9781565762589
Publication date:
January 01, 1982

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