Multiple annulus universal monitoring and pressure relief assembly for subsea well completion systems and method of using same
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United States of America Patent
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Jun 9, 2015
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app pub date -
Apr 16, 2012
filing date -
Apr 14, 2011
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Abstract
A well completion system for monitoring multiple annuluses in a well, including an “A” annulus (between the production tubing and production casing) and a “B” annulus (between the production casing and intermediate casing). The system includes a tubing hanger suspension assembly that seals and separates an upper area of the production annulus. Port(s) in the production casing above the seal provide access between the “B” annulus and the separated area. The system also includes a moveable sleeve that allows fluid communication through the port(s) when in an open position, but not in a closed position. The tubing hanger suspension assembly includes means for moving the sleeve from the closed position to the open position. In addition, the tubing hanger housing includes “A” and “B” annulus passageways in communication with the production annulus and the separated area, respectively.
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