Gas storage well safety system and method
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United States of America Patent
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-
Jun 27, 1989
Grant Date -
N/A
app pub date -
Oct 15, 1987
filing date -
Oct 15, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A well safety system with two surface controlled subsurface safety valves. The invention allows various alternatives for controlling injection into and production from a gas storage well. For maximum production, gas can flow from the underground storage reservoir to the well surface via a tubing string and the annulus between the tubing and well casing. The invention provides at least two alternative flow paths for injecting kill fluids into the well bore.
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