Wells – Expansible anchor or casing – Liner hanger
Patent
1993-01-21
1994-04-12
Dang, Hoang C.
Wells
Expansible anchor or casing
Liner hanger
166217, 285145, E21B 3304
Patent
active
053017501
ABSTRACT:
There is disclosed wellhead apparatus for use in suspending a pipe string within the bore of a housing of the wellhead. The apparatus includes a slip bowl landed on a seat in the bore and a slip assembly supported within the slip bowl in a retracted position which permits the bowl and slip assembly to be lowered into landed position within an annular space between the pipe string and bore of the housing by a series of elongate rods extending within the annular space and adapted, upon rotation in one direction, to force the slip assembly downwardly and inwardly into engagement with the pipe string, and thereby suspend the weight of the pipe string from the slip assembly, and upon rotation in the opposite direction, to permit them to be released from the slip assembly and removed from within the annular space.
REFERENCES:
patent: 1389920 (1921-09-01), Weaver et al.
patent: 3011558 (1961-12-01), Conrad
patent: 3076245 (1963-02-01), Acker
patent: 3090640 (1963-05-01), Otteman et al.
patent: 3098525 (1963-07-01), Haeber
patent: 3206227 (1965-09-01), Todd
patent: 3468559 (1969-09-01), Ahlstone
patent: 3977473 (1976-08-01), Page, Jr.
patent: 4067388 (1978-01-01), Mouret et al.
patent: 4249601 (1981-02-01), White
patent: 4582133 (1986-04-01), Tambs
patent: 4691781 (1987-09-01), Gano
patent: 4823871 (1989-04-01), McEver et al.
patent: 4848462 (1989-07-01), Allwin
patent: 4949786 (1990-08-01), Eckert et al.
patent: 4982795 (1991-01-01), King
patent: 5222555 (1993-06-01), Bridges
Dang Hoang C.
Dril-Quip Inc.
LandOfFree
Wellhead apparatus 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 apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wellhead apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2092721