Gas storage well safety system and method

Wells – Processes – Placing fluid into the formation

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Details

166149, 166184, 166317, 166320, 166321, 166369, 166374, 405 53, E21B 4312, E21B 3410

Patent

active

048420743

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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