Effects of cavern spacing and pressure on subsidence and storage losses for the US Strategic Petroleum Reserve
The effects of cavern spacing and operating pressure on surface subsidence and cavern storage losses were evaluated using the finite- element method. The base case for the two sensitivity studies was a typical SPR cavern. The predicted responses of the base case and those from the pressurization study compared quite closely to measured surface subsidence and oil pressurization rates. This provided credibility for the analyses and constitutive models used. Subsidence and cavern storage losses were found to be strongly influenced by cavern spacing and pressurization. The relationship between subsidence volume and losses in storage volume varied as cavern spacing and operating pressure deviated from the base case. However, for a typical SPR cavern subsidence volume is proportional to storage loss and when expressed in ft., subsidence is equal to the percentage of storage loss.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5469654
- Report Number(s):
- SAND-91-2575; ON: DE92013682
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020200* -- Petroleum-- Reserves
Geology
& Exploration
022000 -- Petroleum-- Transport
Handling
& Storage
CAVITIES
ENERGY SOURCES
FINITE ELEMENT METHOD
FOSSIL FUELS
FUELS
LOSSES
MATHEMATICAL MODELS
NUMERICAL SOLUTION
PETROLEUM
PRESSURIZATION
RESERVES
RESOURCES
ROCK CAVERNS
STORAGE
STRATEGIC PETROLEUM RESERVE