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Sedimentology, ichnology, depositional environment interpretation, and reservoir characterization in the Cotton Valley Formation Sandstone in the Amoco Grace Lowry #1, Harrison County, Texas

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Sedimentology, ichnology, depositional environment interpretation, and reservoir characterization in the Cotton Valley Formation Sandstone in the Amoco Grace Lowry #1, Harrison County, Texas

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dc.contributor.author Bagley, Justin D. en_US
dc.date.accessioned 2010-07-19T19:54:17Z
dc.date.available 2010-07-19T19:54:17Z
dc.date.issued 2010-07-19
dc.date.submitted January 2009 en_US
dc.identifier.other DISS-10316 en_US
dc.identifier.uri http://hdl.handle.net/10106/4852
dc.description.abstract The Cotton Valley formation in east Texas and north Louisiana is a proven hydrocarbon producing tight gas sand reservoir. Understanding the depositional environment, sandstone body geometries and reservoir properties are important for exploration and development. Two hundred and thirty eight feet of conventional core, over the Cotton Valley sandstone interval, was described and interpreted from the Amoco Grace Lowry #1, located in Harrison County, Texas. The sedimentology and ichnology as well as the net sandstone isopachous maps provided the basis for the depositional environment interpretation. Core plug derived porosity and permeability, electric logs, and thin sections were utilized for reservoir characterization. Three separate sandstone intervals were identified and referred to as the Roseberry, Davis I, and Davis II sands. These are part of the massive undifferentiated Cotton Valley sands. The best quality reservoir sands were identified in the Davis I and are interpreted to be deposited within a shallow marine shoreface environment. The poorest reservoir quality sandstone is within the Roseberry interval and is interpreted as a reworked delta front system. Grain size, cementation, chlorite clay grain coating and clay distribution are the primary controls for reservoir quality. en_US
dc.description.sponsorship Holbrook, John en_US
dc.language.iso EN en_US
dc.publisher Geology en_US
dc.title Sedimentology, ichnology, depositional environment interpretation, and reservoir characterization in the Cotton Valley Formation Sandstone in the Amoco Grace Lowry #1, Harrison County, Texas en_US
dc.type M.S. en_US
dc.contributor.committeeChair Holbrook, John en_US
dc.degree.department Geology en_US
dc.degree.discipline Geology en_US
dc.degree.grantor University of Texas at Arlington en_US
dc.degree.level masters en_US
dc.degree.name M.S. en_US
dc.identifier.externalLink https://www.uta.edu/ra/real/editprofile.php?onlyview=1&pid=141
dc.identifier.externalLinkDescription Link to Research Profiles

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