Rotatable liner with multiple simultaneously set liner hanger ar

Details Rotatable liner with multiple simultaneously set liner hanger ar Rotatable liner with multiple simultaneously set liner hanger ar

1986-01-29

1987-08-25

Leppink, James A.

Wells

Processes

Placing or shifting well part

166208, 166212, 166216, 166217, E21B 2302

Patent

active

046886427

ABSTRACT:
A running string is releasably connected to a liner an liner hanger setting arrangement for lowering into a well bore casing and securing the liner to a casing. The liner hanger setting arrangement includes a first sleeve with upper and lower annular rows of conically shaped segments circumferentially spaced thereon. Upper and lower spaced rows of hanger slips are connected to a second sleeve by elongated strips and the second sleeve is releasably secured to the first sleeve whereby the second sleeve may be released from the sleeve for relative longitudinal movement therebetween to move the hanger slips onto the segments and secure the liner to the casing. The space between the segments in each row is substantial to accommodate relatively unrestricted fluid flow thereabout as the apparatus is manipulated and operations conducted in the well bore. After the running string is disconnected from the liner and liner hanger, it is lowered to releasably connect splines on the running string and upper end of the liner. The liner has a rotatable bearing above said sleeves and liner hanger and rotation of the running string is thus transmitted to the liner as it is cemented in the well bore.

REFERENCES:
patent: 2876844 (1959-03-01), Warner
patent: 3291220 (1966-12-01), Mott
patent: 4010804 (1977-03-01), Garcia
patent: 4058166 (1977-11-01), Crickmer
patent: 4249601 (1981-02-01), White
patent: 4281711 (1981-08-01), Braddick et al.
patent: 4497368 (1985-02-01), Baugh
patent: 4523641 (1985-06-01), Manderscheid
patent: 4562889 (1986-01-01), Braddick

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