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Book Chapter

Seismic Stratigraphic Interpretation of the Fort Union Formation, Western Wind River Basin: Example of Subtle Trap Exploration in a Nonmarine Sequence

By
R. Randy Ray
R. Randy Ray
Consulting Geologist/Geophysicist Denver, Colorado
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Published:
January 01, 1982

Abstract

The integrated use of seismic reflection data with regional well control allows a time-stratigraphic reconstruction of lithofacies in the Fort Union Formation in the western part of the Wind River basin, Wyoming. The Paleocene Fort Union Formation is a part of a continuous sequence of alluvial, fluvial, and lacustrine sediments that infilled the basin during latest Cretaceous through early Eocene time. Five regional unconformities are recognized on the seismic line and are used to define four depositional sequences. Lithofacies within the depositional sequences are seen as lateral variations in seismic reflection continuity, amplitude, and frequency. Seismic-stratigraphic analysis of the area refines the understanding of entrapped hydrocarbons at Fuller Reservoir field and outlines a fairway for future exploration of subtle traps in the Fort Union Formation.

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Contents

AAPG Memoir

The Deliberate Search for the Subtle Trap

Michel T. Halbouty
Michel T. Halbouty
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American Association of Petroleum Geologists
Volume
32
ISBN electronic:
9781629811697
Publication date:
January 01, 1982

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