Gas handling method for dual bottle subsea accumulators
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United States of America Patent
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May 30, 2017
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app pub date -
May 9, 2014
filing date -
May 9, 2014
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Abstract
The method of safely handling compressed gas in a dual bottle subsea accumulator during service operations comprising providing a gas bottle for the primary purpose of storing gas which will be compressed to provide accumulated energy, providing a hydraulic bottle with the primary purpose of converting the energy stored in the gas bottle into pressurized hydraulic supply fluid, providing interconnecting plates at the top and bottom of the gas bottle and the hydraulic bottle with porting to communicate the gas from the gas bottle to the hydraulic bottle, providing a first closure valve in a protected position within the top of the gas bottle, providing a second closure valve in a protected position within the bottom of the gas bottle, expelling a majority of the gas from the hydraulic bottle into the gas bottle, closing the first closure valve and the second closure valve, and removing the interconnecting plates from the gas bottle and the hydraulic bottle, and servicing the hydraulic bottle.
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