Wells – Above ground apparatus – Inner member anchor or seal with lateral port
Patent
1990-08-17
1992-03-03
Dang, Hoang C.
Wells
Above ground apparatus
Inner member anchor or seal with lateral port
166208, 166382, 2851332, E21B 33047
Patent
active
050924010
ABSTRACT:
A wellhead assembly comprising housing (1), an outer casing hanger (20) and at least one inner casing hanger (22,24) for suspending casings concentrically into a well. Each casing hanger (20,22,24) is provided with an external supporting shoulder (26,40,60), the external supporting shoulder (26) of said outer casing hanger (20) being supported by an internal shoulder (11) formed on the central bore (9) of the housing (1), the external supporting shoulder (40,60) of each inner casing hanger (22,24) being supported by an internal shoulder (28,42) formed on the inner surface of a surrounding casing hanger. Annular space (32,46,64) formed around the upper end of each casing hanger (20,22,24) are sealed with a metal-to-metal seal (76, 78, 79) or with an annular central member (104).
REFERENCES:
patent: 2118094 (1938-05-01), McDonongh et al.
patent: 2157496 (1939-05-01), Penick et al.
patent: 3087547 (1963-04-01), Raulins et al.
patent: 3543847 (1970-12-01), Haeber
patent: 3548934 (1970-12-01), Hutchinson
patent: 3920071 (1975-11-01), Cegielski
patent: 4223738 (1980-09-01), Bouter et al.
patent: 4842307 (1989-06-01), Sweeney et al.
patent: 4886121 (1989-12-01), Demny et al.
patent: 4900041 (1990-02-01), Hopkins et al.
Dang Hoang C.
Shell Oil Company
LandOfFree
Wellhead assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wellhead assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wellhead assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-266084