Invention Grant
US09051824B2 Multiple annulus universal monitoring and pressure relief assembly for subsea well completion systems and method of using same 有权
用于海底井完井系统的多环通用监测和减压组件及其使用方法

Multiple annulus universal monitoring and pressure relief assembly for subsea well completion systems and method of using same
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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