Title:
SPLIT CARRIER ANNULUS SEAL ASSEMBLY FOR WELLHEAD SYSTEMS
Document Type and Number:
WIPO Patent Application WO2003087523
Kind Code:
A3
Abstract:
The seal assembly (10) seal between a subsea wellhead housing (12) and a casing hanger (16). A metal seal body (20) includes fingers (32 and 34) and one or more elastomeric seals (38). An upper seal body (64) may include threads for engagement with the metal seal body. According the method of the invention, an initial elastomeric seal is first formed, and fluid pressure is applied from above to set the high temperature metal seal.
Inventors:
REIMERT LARRY E
MILBERGER LIONEL J
MILBERGER LIONEL J
Application Number:
PCT/US2003/011418
Publication Date:
July 29, 2004
Filing Date:
April 11, 2003
Export Citation:
Assignee:
DRIL QUIP INC (US)
International Classes:
E21B33/035; E21B33/04; E21B33/12; E21B33/00; (IPC1-7): E21B33/04
Foreign References:
| US4790572A | 1988-12-13 | |||
| US3472520A | 1969-10-14 | |||
| US4757860A | 1988-07-19 | |||
| US5511620A | 1996-04-30 | |||
| US4719971A | 1988-01-19 |
Other References:
See also references of EP 1497528A4
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