Wells – Submerged well – Connection or disconnection of submerged members remotely...
Patent
1997-05-09
1999-03-09
Schoeppel, Roger
Wells
Submerged well
Connection or disconnection of submerged members remotely...
166 883, 166360, 166368, 166382, 166203, E21B 3402
Patent
active
058788166
ABSTRACT:
An adjustable casing hanger for suspending a casing string from a wellhead is provided which includes an elongated tubular body having a lower end adapted to be connected to the casing string and an upper end portion including a plurality of axial annular grooves formed in the outer diameter surface thereof, each groove defining a downwardly facing support surface, and a support ring adapted to be positioned around the body in one of the grooves, the support ring having an upwardly facing load shoulder for engaging the support surface and a downwardly facing load surface for engaging a support shoulder formed in the wellhead, whereby the elevation of the casing hanger within the wellhead can be adjusted depending on in which groove the support ring is positioned. If desired or required by a particular application, one or more seals may be provided for sealing the annulus between the casing hanger and the wellhead, in which event the casing hanger preferably further includes a sealing surface pre-machined into each groove for engaging the seals.
REFERENCES:
patent: 4653589 (1987-03-01), Alandy
patent: 4726425 (1988-02-01), Smith
patent: 4736799 (1988-04-01), Ahlstone
patent: 4742874 (1988-05-01), Gullion
patent: 5439061 (1995-08-01), Brammer et al.
patent: 5653289 (1997-08-01), Hosie et al.
Lalor Richard C.
McBeth Russell E.
Nijjar Amrik S.
Rountree Kenneth G.
FMC Corporation
Query, Jr. Henry C.
Schoeppel Roger
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