February 2020 Bayou Choctaw Subsidence Analysis

Technical Report · Fri May 29 00:00:00 EDT 2020

DOI:https://doi.org/10.2172/1763513· OSTI ID:1763513

Willard, Diane ^[1]; Moriarty, Dylan Michael ^[2]; Lord, Anna C. Snider ^[2]

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1. US Department of Energy (USDOE), New Orleans, LA (United States). Strategic Petroleum Reserve Project
2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Subsidence monitoring is a crucial component to understanding cavern integrity of salt storage caverns. This report looks at the historical and current subsidence monitoring program and includes interpretation of the data from the Bayou Choctaw Strategic Petroleum Reserve site. The current monitoring program consists of an annual elevation survey as well as GPS and tiltmeter instruments above both Cavern 4 and Cavern 20. This year's level and rod survey indicates little subsidence across the site. In addition, the GPS and tiltmeter instruments do not indicate any substantial movement above caverns 4 and 20. As such, there is no reason to indicate any of the caverns at Bayou Choctaw have lost integrity.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); US Department of Energy (USDOE), New Orleans, LA (United States). Strategic Petroleum Reserve Project
• Sponsoring Organization: USDOE Office of Fossil Energy (FE), Petroleum Reserves; USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000; NA0003525
• OSTI ID: 1763513
• Report Number(s): SAND-2020-5700R; 686462
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
02 PETROLEUM
47 OTHER INSTRUMENTATION