Annulus pressure control system for subsea wells

Details Annulus pressure control system for subsea wells Annulus pressure control system for subsea wells

2006-05-23

2006-05-23

Will, Thomas B. (Department: 3671)

Wells

Submerged well

Connection or disconnection of submerged members remotely...

C166S344000, C166S227000, C166S187000

Reexamination Certificate

active

07048059

ABSTRACT:
The annulus pressure is controlled by displacing incompressible fluid with compressible fluid in the annulus. The displaced fluid is filtered to avoid clogging small lines. The presence of compressible fluid minimizes the thermal effect of warm fluid in the production tubing on annulus pressure. As a result, thinner wall casing can be used, for considerable savings in material and installation cost.

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Richard F. Vargo, et al., “Practical and Successful Prevention of Annular Pressure Buildup on the Marlin Project,” SPE No. 77473, 1-10, Sep. 29, 2002.

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