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The AAPG/Datapages Combined Publications Database

GCAGS Transactions

Abstract


Gulf Coast Association of Geological Societies Transactions
Vol. 5 (1955), Pages 89-96

A Practical Application of Paleoecology in Exploration

Previous HitRobertTop W. Crouch (1)

ABSTRACT

The most prolific reservoir sands in southern Louisiana are associated with moderate, deep water shales indicative of paleoecologic zones two, three, and four. Difficulty has been encountered in prospecting for petroleum in the deep water paleoecologic zones five and six. This situation is due in part to the lack of good sand deposited in deep water. The sands encountered often are of a high pressure, low volume type. This fact suggests that the sands are lenticular in nature and may have been deposited by turbidity currents. Multiple sands may appear where relatively young sediments are being encountered at deep drilling depths. When an older section is being penetrated rapidly with drilling depth, consistently deeper water sediments will appear. This situation is due to the imbricate nature of sediment deposition in the Gulf Coast area.


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