SEPARATION OF A MARINE RISER FROM A SUBSEA WELLHEAD
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United States of America Patent
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app pub date -
Jan 23, 2017
filing date -
Aug 27, 2010
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Abstract
A subsea well system includes a safety assembly connected between a marine riser and a subsea wellhead, and an ejector bollard connected with the safety assembly and having a piston operable from a retracted position to an extended position to push an upper portion and a lower portion of the safety assembly apart and thereby physically separate the marine riser from the subsea wellhead.
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