Sonar surveys used in gas-storage cavern analysis

Journal Article · Mon May 04 00:00:00 EDT 1998 · Oil and Gas Journal

OSTI ID:597060

Crossley, N G ^[1]

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1. TransGas Ltd., Regina, Saskatchewan (Canada)

Natural-gas storage cavern internal configuration, inspection information, and cavern integrity data can be obtained during high-pressure operations with specialized gas-sonar survey logging techniques. TransGas Ltd., Regina, Sask., has successfully performed these operations on several of its deepest and highest pressurized caverns. The data can determine gas-in-place inventory and assess changes in spatial volumes. These changes can result from cavern creep, shrinkage, or closure or from various downhole abnormalities such as fluid infill or collapse of the sidewall or roof. The paper discusses conventional surveys with sonar, running surveys in pressurized caverns, accuracy of the sonar survey, initial development of Cavern 5, a roof fall, Cavern 4 development, and a damaged string.

• OSTI ID: 597060
• Journal Information: Oil and Gas Journal, Journal Name: Oil and Gas Journal Journal Issue: 18 Vol. 96; ISSN OIGJAV; ISSN 0030-1388
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
ACCURACY
INSPECTION
INVENTORIES
LEAKS
NATURAL GAS
OPERATION
SONAR
STORAGE FACILITIES
UNDERGROUND STORAGE