Evaluation of area of review variance opportunities for the East Texas field. Annual report

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Description

The East Texas oil field, discovered in 1930 and located principally in Gregg and Rusk Counties, is the largest oil field in the conterminous United States. Nearly 33,000 wells are known to have been drilled in the field. The field has been undergoing water injection for pressure maintenance since 1938. As of today, 104 Class II salt-water disposal wells, operated by the East Texas Salt Water Disposal Company, are returning all produced water to the Woodbine producing reservoir. About 69 of the presently existing wells have not been subjected to U.S. Environmental Protection Agency Area-of-Review (AOR) requirements. A study has ... continued below

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99 p.

Creation Information

Warner, D.L.; Koederitz, L.F.; Laudon, R.C. & Dunn-Norman, S. May 1, 1995.

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Description

The East Texas oil field, discovered in 1930 and located principally in Gregg and Rusk Counties, is the largest oil field in the conterminous United States. Nearly 33,000 wells are known to have been drilled in the field. The field has been undergoing water injection for pressure maintenance since 1938. As of today, 104 Class II salt-water disposal wells, operated by the East Texas Salt Water Disposal Company, are returning all produced water to the Woodbine producing reservoir. About 69 of the presently existing wells have not been subjected to U.S. Environmental Protection Agency Area-of-Review (AOR) requirements. A study has been carried out of opportunities for variance from AORs for these existing wells and for new wells that will be constructed in the future. The study has been based upon a variance methodology developed at the University of Missouri-Rolla under sponsorship of the American Petroleum Institute and in coordination with the Ground Water Protection Council. The principal technical objective of the study was to determine if reservoir pressure in the Woodbine producing reservoir is sufficiently low so that flow of salt-water from the Woodbine into the Carrizo-Wilcox ground water aquifer is precluded. The study has shown that the Woodbine reservoir is currently underpressured relative to the Carrizo-Wilcox and will remain so over the next 20 years. This information provides a logical basis for a variance for the field from performing AORs.

Physical Description

99 p.

Notes

OSTI as DE96003391

Source

  • Other Information: PBD: May 1995

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  • Other: DE96003391
  • Report No.: DOE/MT/94002--T2
  • Grant Number: FG22-94MT94002
  • DOI: 10.2172/162169 | External Link
  • Office of Scientific & Technical Information Report Number: 162169
  • Archival Resource Key: ark:/67531/metadc623036

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • May 1, 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • Nov. 20, 2015, 1:47 p.m.

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Warner, D.L.; Koederitz, L.F.; Laudon, R.C. & Dunn-Norman, S. Evaluation of area of review variance opportunities for the East Texas field. Annual report, report, May 1, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc623036/: accessed December 11, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.