Wells – Expansible anchor or casing – Liner hanger
Patent
1988-04-28
1989-03-14
Novosad, Stephen J.
Wells
Expansible anchor or casing
Liner hanger
166217, 166382, 294 8625, E21B 2302, E21B 2304, E21B 33128
Patent
active
048117846
ABSTRACT:
A running tool for lowering, landing and setting a well structure, such as a hanger and an annular seal for sealing between the exterior of the hanger and the interior of the well in which the well structure is landed including a mandrel having means for connecting to a running string, a tool body surrounding and carried by said mandrel and having a purality of windows in its lower portion in which latch element are carried, an actuator sleeve surrounding said mandrel and positioned within said tool body and being free to move axially thereof to engage said latching elements to move them into latching engagement with the interior of the well in the landing position, means for releasably limiting the downward movement of said mandrel with respect to said actuating ring, means limiting the downward movement of said actuating ring with respect to said tool body, and means supported on said mandrel and tool body for carrying an annular seal, setting said annular seal in the annulus between the well structure and the interior of the well and latching said annular seal in its set position.
REFERENCES:
patent: 2698056 (1954-12-01), Marshall et al.
patent: 2894586 (1959-07-01), Schramm et al.
patent: 3350130 (1967-10-01), Ahlstone et al.
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patent: 3507329 (1970-04-01), Stone, Jr.
patent: 3543847 (1970-12-01), Haeber
patent: 3871449 (1975-03-01), Ahlstone
patent: 3897823 (1975-08-01), Ahlstone
patent: 4043390 (1977-08-01), Glotin
patent: 4691780 (1987-09-01), Galle, Jr. et al.
patent: 4719971 (1988-01-01), Owens
Cameron Iron Works USA Inc.
Novosad Stephen J.
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