Storage or disposal cavern leak detection and loss prevention
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United States of America Patent
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-
Oct 2, 1984
Grant Date -
N/A
app pub date -
Aug 25, 1982
filing date -
Aug 25, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An environmentally acceptable gas is provided, under pressure, in the annulus of a casing arrangement which connects a wellhead to an underground storage zone containing stored product. Monitoring of the gas permits detection of leaks that might occur through casing leakage to an unsealed overburden. Leak detection and product loss prevention can be conducted without deleterious environmental impact.
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