Importance

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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.

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First Claim