Title:
EXTERNALLY ACTIVATED SEAL SYSTEM FOR WELLHEAD
Document Type and Number:
WIPO Patent Application WO2005065292
Kind Code:
A3
Abstract:
A method and apparatus for a seal assembly for a unitized wellhead system for land or platform applications utilizes a friction grip technology to create maintainable metal-to-metal seals with finely-controlled contact stresses, lock-down casing and tubing hangers, support test loads to minimize the site of landing shoulders required, and to rotationally lock casing hangers to provide simplified running procedures. The system can be used in combination with a friction grip clamping assembly to greatly streamline the wellhead design.
Inventors:
VAN BILDERBEEK BERNARD HERMAN (US)
Application Number:
PCT/US2004/043540
Publication Date:
February 02, 2006
Filing Date:
December 22, 2004
Export Citation:
Assignee:
VAN BILDERBEEK BERNARD HERMAN (US)
International Classes:
E21B33/04; (IPC1-7): E21B23/00
Foreign References:
| US6092596A | 2000-07-25 | |||
| US5996695A | 1999-12-07 | |||
| US3795963A | 1974-03-12 | |||
| US6598680B2 | 2003-07-29 | |||
| US2097615A | 1937-11-02 |
Other References:
See also references of EP 1709289A4
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