Strategic Petroleum Reserve (SPR) Geological Site Characterization Report, Bayou Choctaw Salt Dome. Sections I and II. PDF Download
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Languages : en
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This report comprises two sections: Bayou Choctaw cavern stability issues, and geological site characterization of Bayou Choctaw. (DLC).
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Languages : en
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This report comprises two sections: Bayou Choctaw cavern stability issues, and geological site characterization of Bayou Choctaw. (DLC).
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Languages : en
Pages : 91
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This report revises and updates the geologic site characterization report that was published in 1980. Revised structure maps and sections show interpretative differences in the dome shape and caprock structural contours, especially a major east-west trending shear zone, not mapped in the 1980 report. Excessive gas influx in Caverns 18 and 20 may be associated with this shear zone. Subsidence values at Bayou Choctaw are among the lowest in the SPR system, averaging only about 10 mm/yr but measurement and interpretation issues persist, as observed values often approximate measurement accuracy. Periodic, temporary flooding is a continuing concern because of the low site elevation (less than 10 ft), and this may intensify as future subsidence lowers the surface even further. Cavern 4 was re-sonared in 1992 and the profiles suggest that significant change has not occurred since 1980, thereby reducing the uncertainty of possible overburden collapse -- as occurred at Cavern 7 in 1954. Other potential integrity issues persist, such as the proximity of Cavern 20 to the dome edge, and the narrow web separating Caverns 15 and 17. Injection wells have been used for the disposal of brine but have been only marginally effective thus far; recompletions into more permeable lower Pleistocene gravels may be a practical way of increasing injection capacity and brinefield efficiency. Cavern storage space is limited on this already crowded dome, but 15 MMBBL could be gained by enlarging Cavern 19 and by constructing a new cavern beneath and slightly north of abandoned Cavern 13. Environmental issues center on the low site elevation: the backswamp environment combined with the potential for periodic flooding create conditions that will require continuing surveillance.
Author: United States. Strategic Petroleum Reserve Office
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Category : Environmental impact analysis
Languages : en
Pages : 806
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Author: United States. Strategic Petroleum Reserve Office
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Category : Government publications
Languages : en
Pages : 192
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Author: R. J. Hart
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Category : Salt domes
Languages : en
Pages :
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Category : Power resources
Languages : en
Pages : 500
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Author: United States. Strategic Petroleum Reserve Office
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Category : Government publications
Languages : en
Pages : 618
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Author:
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Category : Fossil fuels
Languages : en
Pages : 886
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Author: United States. Strategic Petroleum Reserve Office
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Category : Government publications
Languages : en
Pages : 200
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Author: United States. Strategic Petroleum Reserve Office
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Category : Petroleum
Languages : en
Pages : 202
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