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Title: Bryan Mound InSAR Analysis U.S. Strategic petroleum Reserve.

Abstract

The U.S. Strategic Petroleum Reserve (SPR) is a stockpile of emergency crude oil to be tapped into if a disruption in the nation's oil supply occurs. The SPR is comprised of four salt dome sites. Subsidence surveys have been conducted either annually or biennially at all four sites over the life of the program. Monitoring of surface behavior is a first line defense to detecting possible subsurface cavern integrity issues. Over the life of the Bryan Mound site, subsidence rates over abandoned Cavern 3 have continuously been the highest at the site. In an effort to try and understand the subsurface dynamics, specifically over Bryan Mound Cavern 3, historic interferometric synthetic aperture radar (InSAR) data was acquired and processed by TRE Altamira. InSAR involves the processing of multiple satellite synthetic aperture radar scenes acquired across the same location of the Earth's surface at different times to map surface deformation. The analysis of the data has the ability to detect millimeters of motion spanning days, months, year and decades, across specific sites. The intent in regards to the Bryan Mound site was (1) to confirm the higher subsidence rates recorded over abandoned Cavern 3 indicated by land survey and (2) understandmore » the regional surface behavior. This report describes the InSAR analysis results, how those results compare to the historical collection of land survey data, and what additional information the data has provided towards understanding the response recorded at the surface.« less

Authors:
 [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE), Petroleum Reserves (FE-40)
OSTI Identifier:
1367951
Report Number(s):
SAND-2017-6679
654776
DOE Contract Number:
AC04-94AL85000
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM

Citation Formats

Lord, Anna C. Bryan Mound InSAR Analysis U.S. Strategic petroleum Reserve.. United States: N. p., 2017. Web. doi:10.2172/1367951.
Lord, Anna C. Bryan Mound InSAR Analysis U.S. Strategic petroleum Reserve.. United States. doi:10.2172/1367951.
Lord, Anna C. Thu . "Bryan Mound InSAR Analysis U.S. Strategic petroleum Reserve.". United States. doi:10.2172/1367951. https://www.osti.gov/servlets/purl/1367951.
@article{osti_1367951,
title = {Bryan Mound InSAR Analysis U.S. Strategic petroleum Reserve.},
author = {Lord, Anna C.},
abstractNote = {The U.S. Strategic Petroleum Reserve (SPR) is a stockpile of emergency crude oil to be tapped into if a disruption in the nation's oil supply occurs. The SPR is comprised of four salt dome sites. Subsidence surveys have been conducted either annually or biennially at all four sites over the life of the program. Monitoring of surface behavior is a first line defense to detecting possible subsurface cavern integrity issues. Over the life of the Bryan Mound site, subsidence rates over abandoned Cavern 3 have continuously been the highest at the site. In an effort to try and understand the subsurface dynamics, specifically over Bryan Mound Cavern 3, historic interferometric synthetic aperture radar (InSAR) data was acquired and processed by TRE Altamira. InSAR involves the processing of multiple satellite synthetic aperture radar scenes acquired across the same location of the Earth's surface at different times to map surface deformation. The analysis of the data has the ability to detect millimeters of motion spanning days, months, year and decades, across specific sites. The intent in regards to the Bryan Mound site was (1) to confirm the higher subsidence rates recorded over abandoned Cavern 3 indicated by land survey and (2) understand the regional surface behavior. This report describes the InSAR analysis results, how those results compare to the historical collection of land survey data, and what additional information the data has provided towards understanding the response recorded at the surface.},
doi = {10.2172/1367951},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jun 01 00:00:00 EDT 2017},
month = {Thu Jun 01 00:00:00 EDT 2017}
}

Technical Report:

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  • Downhole sonar surveys from the four active U.S. Strategic Petroleum Reserve sites have been modeled and used to generate a four-volume sonar atlas, showing the three-dimensional geometry of each cavern. This volume 3 focuses on the Bryan Mound SPR site, located in southeastern Texas. Volumes 1, 2, and 4, respectively, present images for the Bayou Choctaw SPR site, Louisiana, the Big Hill SPR site, Texas, and the West Hackberry SPR site, Louisiana. The atlas uses a consistent presentation format throughout. The basic geometric measurements provided by the down-cavern surveys have also been used to generate a number of geometric attributes,more » the values of which have been mapped onto the geometric form of each cavern using a color-shading scheme. The intent of the various geometrical attributes is to highlight deviations of the cavern shape from the idealized cylindrical form of a carefully leached underground storage cavern in salt. The atlas format does not allow interpretation of such geometric deviations and anomalies. However, significant geometric anomalies, not directly related to the leaching history of the cavern, may provide insight into the internal structure of the relevant salt dome.« less
  • This report covers the site-specific aspects of corrosion in the SPR program. The most noteworthy observation was that large differences in the conditions exist from site to site. Some sites should have relatively minor corrosion problems, whereas other sites at which deep caverns and acidic groundwaters exist may have severe corrosion problems. Laboratory tests of aerated brines have shown unacceptably high corrosion rates which may lead to failures long before the anticipated lifetime of various components is reached. The high corrosion rates may be reduced to tolerable levels by the use of SO/sub 2/ to deoxygenate the brine. However, themore » possible reduction of sulfates by anaerobic sulfate-reducing bacteria may lead to even more severe sulfide corrosion. No SO/sub 2/ injection is recommended until suitable tests refute the sulfide corrosion problem. Rust samples from three types of pipes from the Bryan Mound depository and a piece of a severely corroded (completely perforated) pipe were subjected to x-ray energy dispersive analyses and failure analysis at Sandia Laboratories. Service histories of the pipes were unknown except the 5-1/2 in. pipes were stated to have carried brine at 100/sup 0/F. Two large pipes showed minimal corrosion and were characterized by loose, flaky rust which contained traces of some foreign elements such as calcium, silicon, chlorine which could be attributed to either dissolved species in near-surface groundwaters or cement which coated the 11'' pipe. These pipes were guessed to have been casings, and it was concluded that they were probably not exposed to sulfur-bearing waters. The 5-1/2 in. brine pipe was of very poor quality steel and was analyzed in detail. It was concluded that the brine was extremely corrosive and led to the extensive corrosion observed. Although the pipe was used many years ago, the same conditions may prevail and could lead to serious problems.« less
  • This report describes nekton communities off Freeport, Texas prior to brine disposal based on trawl studies in the period October 1977 to February 1980. Trawling was conducted aboard chartered commercial shrimp trawlers along a transect in depths of 3 to 25 fathoms to describe the general background of nekton communities off Freeport. An array of stations were occupied at the diffuser site in 12 fathoms of water to describe in detail nekton communities near the diffuser. Collections at each station, in general, were made once a month during the day and once a month at night, cruises being about twomore » weeks apart in time. Projected diffuser locations, stations occupied, etc., changed during the course of the project, and the Materials and Methods (Section 4.2) should be consulted for details.« less
  • The purpose of this report is to describe the environmental conditions found by the principal investigators during the predisposal study conducted from September 1977 through February 1980 prior to the start of brine discharge in March 1980. The major areas of investigation are physical oceanography, analysis of the discharge plume, water and sediment quality, nekton, benthos, phytoplankton, zooplankton, and data management. Volume 1 describes the results of the predisposal study, and it is divided into eight chapters entitled: Physical Oceanography, Analysis of the Discharge Plume, Water and Sediment Quality, Nekton, Benthos, Zooplankton, Phytoplankton, and Data Management. Volume 2 consists ofmore » appendices which contain additional supporting data in the form of figures and tables.« less
  • The purpose of this report is to describe the environmental conditions found by the principal investigators during the predisposal study conducted from September 1977 through February 1980 prior to the start of brine discharge in March 1980. The major areas of investigation are physical oceanography, analysis of the discharge plume, water and sediment quality, nekton, benthos, phytoplankton, zooplankton, and data management. Volume 1 describes the results of the predisposal study, and it is divided into eight chapters entitled: Physical Oceanography, Analsyis of the Discharge Plume, Water and Sediment Quality, Nekton, Benthos, Zooplankton, Phytoplankton, and Data Management. Volume 2 consists ofmore » appendices which contain additional supporting data in the form of figures and tables.« less