Underbalanced marine drilling riser

Details Underbalanced marine drilling riser Underbalanced marine drilling riser

2007-07-03

2007-07-03

Beach, Thomas A (Department: 3671)

Wells

Submerged well

Means removably connected to permanent well structure

C166S358000, C175S005000

Reexamination Certificate

active

10900598

ABSTRACT:
A riser assembly for offshore drilling has an inner conduit suspended within an outer riser. A seal assembly seals an annular space between the inner conduit and the riser at the lower end of the inner conduit. The seal assembly has a pressure area that is independent of the inner conduit, so that any forces acting on the assembly due to pressure in the annulus below the seal assembly pass through the assembly to the riser and not to the inner conduit.

REFERENCES:
patent: 4059148 (1977-11-01), Blomsma
patent: 4216834 (1980-08-01), Wardlaw
patent: 5220961 (1993-06-01), Guesnon et al.
patent: 5533574 (1996-07-01), Gonzalez
patent: 5797452 (1998-08-01), Martin
patent: 5868437 (1999-02-01), Teague
patent: 6035938 (2000-03-01), Watkins
patent: 6148922 (2000-11-01), Vatne
patent: 6273193 (2001-08-01), Hermann et al.
patent: 6354372 (2002-03-01), Carisella et al.
patent: 6457529 (2002-10-01), Calder et al.
patent: 6470975 (2002-10-01), Bourgoyne et al.
patent: 6913092 (2005-07-01), Bourgoyne et al.
patent: 6983957 (2006-01-01), Bettinger

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