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Title: Strategic Petroleum Reserve (SPR) geological site characterization report, Big Hill Salt Dome

Abstract

Geological and geophysical analyses of the Big Hill Salt Dome were performed to determine the suitability of this site for use in the Strategic Petroleum Reserve (SPR). Development of 140 million barrels (MMB) of storage capacity in the Big Hill Salt Dome is planned as part of the SPR expansion to achieve 750 MMB of storage capacity. Objectives of the study were to: (1) Acquire, evaluate, and interpret existing data pertinent to geological characterization of the Big Hill Dome; (2) Characterize the surface and near-surface geology and hydrology; (3) Characterize the geology and hydrology of the overlying cap rock; (4) Define the geometry and geology of the dome; (5) Determine the feasibility of locating and constructing 14 10-MMB storage caverns in the south portion of the dome; and (6) Assess the effects of natural hazards on the SPR site. Recommendations are included. (DMC)

Authors:
; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (USA)
OSTI Identifier:
6159294
Report Number(s):
SAND-81-1045
ON: DE82001834
DOE Contract Number:
AC04-76DP00789
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 58 GEOSCIENCES; 54 ENVIRONMENTAL SCIENCES; SALT CAVERNS; GEOLOGY; HYDROLOGY; STORAGE FACILITIES; HAZARDS; SITE SELECTION; STRATEGIC PETROLEUM RESERVE; TEXAS; EARTHQUAKES; FLOODS; GEOLOGIC FAULTS; GEOMETRY; GROUND SUBSIDENCE; HURRICANES; LAND USE; LITHOLOGY; MAPS; PETROLEUM; RECOMMENDATIONS; SOILS; STRATIGRAPHY; TOPOGRAPHY; CAVITIES; DISASTERS; ENERGY SOURCES; FOSSIL FUELS; FUELS; GEOLOGIC STRUCTURES; MATHEMATICS; NORTH AMERICA; RESERVES; RESOURCES; SEISMIC EVENTS; SOUTHWEST REGION; STORMS; USA; 024000* - Petroleum- Storage- (-1989); 580100 - Geology & Hydrology- (-1989); 510500 - Environment, Terrestrial- Site Resource & Use Studies- (-1989)

Citation Formats

Hart, R.J., Ortiz, T.S., and Magorian, T.R.. Strategic Petroleum Reserve (SPR) geological site characterization report, Big Hill Salt Dome. United States: N. p., 1981. Web. doi:10.2172/6159294.
Hart, R.J., Ortiz, T.S., & Magorian, T.R.. Strategic Petroleum Reserve (SPR) geological site characterization report, Big Hill Salt Dome. United States. doi:10.2172/6159294.
Hart, R.J., Ortiz, T.S., and Magorian, T.R.. Tue . "Strategic Petroleum Reserve (SPR) geological site characterization report, Big Hill Salt Dome". United States. doi:10.2172/6159294. https://www.osti.gov/servlets/purl/6159294.
@article{osti_6159294,
title = {Strategic Petroleum Reserve (SPR) geological site characterization report, Big Hill Salt Dome},
author = {Hart, R.J. and Ortiz, T.S. and Magorian, T.R.},
abstractNote = {Geological and geophysical analyses of the Big Hill Salt Dome were performed to determine the suitability of this site for use in the Strategic Petroleum Reserve (SPR). Development of 140 million barrels (MMB) of storage capacity in the Big Hill Salt Dome is planned as part of the SPR expansion to achieve 750 MMB of storage capacity. Objectives of the study were to: (1) Acquire, evaluate, and interpret existing data pertinent to geological characterization of the Big Hill Dome; (2) Characterize the surface and near-surface geology and hydrology; (3) Characterize the geology and hydrology of the overlying cap rock; (4) Define the geometry and geology of the dome; (5) Determine the feasibility of locating and constructing 14 10-MMB storage caverns in the south portion of the dome; and (6) Assess the effects of natural hazards on the SPR site. Recommendations are included. (DMC)},
doi = {10.2172/6159294},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 01 00:00:00 EDT 1981},
month = {Tue Sep 01 00:00:00 EDT 1981}
}

Technical Report:

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  • The salt mass at Big Hill dome, Texas, has been characterized using information from 28 wells that were drilled in preparation for solution mining of fourteen new 11.5 MMBBL caverns for the Strategic Petroleum Reserve. Beneath an exceptionally thick caprock (/approximately/1350 ft), the salt is very pure, with an average anhydrite content of about 1.7%, and only minor shale and sylvite along the southern tier of caverns. Anhydrite distribution between holes is correlative on the density logs, revealing two distinct spines in the salt mass. These are separated by a north-northeast- trending shear zone that is structurally aligned with themore » High Island -- Spindletop salt ridge and parallels the Hackberry Embayment, a major Gulf Coast feature. The shear zone appears to displace the caprock down to the east by as much as 100 ft. Additional cavern space along the western and southern boundaries cannot be ruled out until further exploration is completed. Other space is available to the north, and probably has better potential for expansion. The results further substantiate the conclusions of the original geological site characterization report (SAND81-1045) that the site is geologically superior for SPR cavern development. 10 figs., 1 tab.« less
  • Section I provides a review of cavern stability, integrity and usability for both existing and planned cavern at Bryan Mound. The early analyses were done using typical material properties. Future analyses will be done utilizing the information reported in Sections II and III of this report. As these analyses are completed, results and recommendations will be published for the existing and planned caverns. Section II of this report is a comprehensive geological site characterization done by D'Appolonia Consulting Engineers, Inc. for Sandia National Laboratories. The geological characterization was to be performed in two phases. In the first phase, a comprehensivemore » study would be prepared from existing data, and in the second phase, field programs would be used to gather specific information as needed. Section II represents the results of Phase 1 only. We do not believe a Phase 2 geological field program is necessary to support development and operations of the existing caverns, the 12 expansion caverns, or the four Phase 3 caverns. Section III evaluates the properties of salt from the Bryan Mound salt dome. The evaluation includes review of core, sidewall samples, drill cuttings, borehole logs, and the drilling reports to determine typical material properties and define anomalies. The typical quasi-static properties of salt are consistent with published values for salt from many worldwide locations. Creep rates for the Bryan Mound salt are significantly lower than expected. The typical impurities in this dome are sylvite-halite and anhydrite-halite layers with near vertical dip. Small quantities of anhydrite are also dispersed within the salt grains. The salt dome is suitable for the long term storage for petroleum in caverns which can be constructed using normal leaching techniques.« less
  • This report comprises two sections: Bayou Choctaw cavern stability issues, and geological site characterization of Bayou Choctaw. (DLC)
  • The report comprises three sections: Sulphur Mines cavern stability issues; geological site characterization for Sulphur Mines SPR site in Sulphur, Louisiana (main body of report); and salt properties for Sulphur Mines Dome (no data given). The second section covers the geology and hydrology of the region, site, caprock, and salt dome, and geologic and hydrologic hazards. (DLC)
  • This report is composed of the following three sections: (1) West Hackberry Cavern Stability Issues; (2) Geological Site Characterization, West Hackberry Salt Dome; and (3) Salt Properties for West Hackberry Dome. Section one reviews cavern stability, integrity, and usability issues regarding existing and planned storage caverns in the West Hackberry salt dome. Previous studies are discussed, ongoing investigations are summarized and data needed to support the assessment are described. Section two is a comprehensive site characterization study done by Woodward-Clyde consultants for Sandia. The geological characterization was to be done in two phases. In the first phase, a comprehensive studymore » would be prepared from existing data, and in the second phase, field programs would be used to gather specific information as needed. Section two represents the results of Phase 1 only. Section three evaluates the properties of salt from the West Hackberry salt dome. The evaluation includes review of core, borehole logs and drilling reports to determine typical material properties and define anomalies. The typical quasi-static and creep properties of the salt are consistent with published values for salt from many worldwide locations. The typical impurities in this dome are anhydrite-halite layers with near vertical dip. Small quantities of anhydrite are also dispersed within the salt grains. The salt dome is suitable for the long-term storage for petroleum in caverns which can be constructed using normal leaching techniques.« less