Development of technologies and techniques to enhance underground natural gas storage operations: Well-casing leak repair. Topical report, December 1990
Maurer Engineering Inc. (MEI), under a contract with the Gas Research Institute (GRI), studied the leakage of gas from storage wells by performing an industry survey of operators. Over seventy-four percent (74%) of the injection/production wells in the U.S. and Canada were covered by the survey. It was found that only forty-one (41) leaks occur per year, the average size is 21 MCFD, and that the leaks are easily found and adequately repaired with existing technology. A majority of the leaks occur in threaded couplings, most of which are API 8 RD. A cost-benefit analysis of repair techniques was performed and shows that replacement, squeezing, and wireline patching rank highest. The leakage of small quantity of gas from a coupling with no lubricant was quantified and found to be less than 500 SCFD. Small leaks are more difficult to locate and repair.
- Research Organization:
- Maurer Engineering, Inc., Houston, TX (USA)
- OSTI ID:
- 5916799
- Report Number(s):
- PB-91-161331/XAB; TR--91-1; CNN: GRI-5089-275-1853
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
032000* -- Natural Gas-- Transport
Handling
& Storage
COST BENEFIT ANALYSIS
DOCUMENT TYPES
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
INJECTION WELLS
JOINTS
LEAKS
NATURAL GAS
NATURAL GAS WELLS
PROGRESS REPORT
REPAIR
STORAGE
STORAGE FACILITIES
SURVEYS
THREADED JOINTS
UNDERGROUND STORAGE
WELL CASINGS
WELL SERVICING
WELLS