Externally activated seal system for wellhead

Details Externally activated seal system for wellhead Externally activated seal system for wellhead

2007-09-24

2010-06-22

Stephenson, Daniel P (Department: 3676)

Wells

Above ground apparatus

External anchoring or bracing means

C166S075130, C166S089100

Reexamination Certificate

active

07740061

ABSTRACT:
A method and apparatus for installing casing hangers in a wellbore utilizing an externally activated gripping system to temporarily bind wearbushings secured to casing and tubing hangers in order to lock-down such hangers during various wellbore drilling activities, thereby minimizing the size of landing shoulders and eliminating additional lock down equipment and simplifying running procedures.

REFERENCES:
patent: 2097615 (1937-11-01), Burns et al.
patent: 3795963 (1974-03-01), Sturmey
patent: 4913469 (1990-04-01), Baugh
patent: 5031695 (1991-07-01), Cain et al.
patent: 5360063 (1994-11-01), Hemderson, Jr.
patent: 5996695 (1999-12-01), Koleilat et al.
patent: 6092596 (2000-07-01), Van Bilderbeek
patent: 6488084 (2002-12-01), Borak, Jr.
patent: 6598680 (2003-07-01), DeBerry
patent: 6662865 (2003-12-01), Beitelmal et al.
patent: 6662868 (2003-12-01), Van Bilderbeek
patent: 7111688 (2006-09-01), Van Bilderbeek
patent: 7128143 (2006-10-01), Van Bilderbeek
patent: 2007/0034382 (2007-02-01), Van Bilderbeek
patent: 0251595 (1988-01-01), None
Seong Kon Kim, International Search Report, Apr. 29, 2009, 5 pages, Korean Intellectual Property Office; Government Complex-Daejeon; Seo-gu, Daejeon; Republic of Korea.
Seong Kon Kim, Written Opinion of the International Searching Authority, Apr. 29, 2009, 6 pages, Korean Intellectual Property Office; Government Complex-Daejeon; Seo-gu, Daejeon; Republic of Korea.

Affiliated with

Also associated with

Rating

Externally activated seal system for wellhead does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Externally activated seal system for wellhead, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Externally activated seal system for wellhead will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4246189