Projection of Favorable Gas-Producting Areas From Paleoenvironmental Data

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Paleoenvironmental biofacies analysis of recent wells in dark Devonian shales in the Applachian Basin has shown that these facies can be projected to areas with no control points. In particular, the facies distribution in Perry County, Kentucky, were found to be precisely those that were predicted earlier from biofacies and organic geochemical data from the VA-1 well in Wise County, Virginia, and the KY-2 well in Martin County, Kentucky. This demonstrates the importance of these data in assessing the volume of gas in the shale throughout the basin as well as in selecting future test sites. The recent biofacies and ... continued below

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Zielinski, R.E.; Dixon, J. A.; McIver, R. D. & Reaugh, A. B. December 31, 1979.

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Description

Paleoenvironmental biofacies analysis of recent wells in dark Devonian shales in the Applachian Basin has shown that these facies can be projected to areas with no control points. In particular, the facies distribution in Perry County, Kentucky, were found to be precisely those that were predicted earlier from biofacies and organic geochemical data from the VA-1 well in Wise County, Virginia, and the KY-2 well in Martin County, Kentucky. This demonstrates the importance of these data in assessing the volume of gas in the shale throughout the basin as well as in selecting future test sites. The recent biofacies and geochemical work together with a review of the tectonics of the basin have contributed to an evolving interpretation of the geologic control of the biofacies. While a marine environment persisted throughout the Upper Devonian over the Applachian and Illinois Basin (and probably the Michigan Basin), dynamic emergent areas controlled an intermittent introduction of large amounts of organic matter. Large amounts of non-marine organic matter were periodically transported in the basin from a dynamic source province to the Southeast; massive "blooms" of Tasmanites intermittently spread both east and west from the edges of the emerging Cincinnati Arch. At times one or the other of these organic types swept entirely across the basins; at other times a more normal open marine biota flourished and was deposited, probably under the influence of connections to the open seas to the south and northwest, the north being closed by the collision and suturing of continental plates and the east by the growing Applachian Mountains.

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  • Report No.: MLM-2653 (OP)
  • Grant Number: AC04-76DP00053
  • Office of Scientific & Technical Information Report Number: 967378
  • Archival Resource Key: ark:/67531/metadc925762

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  • December 31, 1979

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 9, 2016, 8:19 p.m.

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Zielinski, R.E.; Dixon, J. A.; McIver, R. D. & Reaugh, A. B. Projection of Favorable Gas-Producting Areas From Paleoenvironmental Data, report, December 31, 1979; United States. (digital.library.unt.edu/ark:/67531/metadc925762/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.