Well tool for setting and supporting liners

Details Well tool for setting and supporting liners Well tool for setting and supporting liners

1976-02-18

1976-12-28

Leppink, James A.

Wells

Expansible anchor or casing

Fluid pressure actuated

E21B 2300

Patent

active

039996050

ABSTRACT:
A tubular member or mandrel is provided with an outer housing and a cone shaped enlargement. Segmented cone means is slidably supported on the mandrel between the mandrel and the outer housing and the mandrel includes a portion spaced radially therefrom to define an annular cylinder with the outer housing having a piston portion sealably fitting within the annular cylinder. Slip segments are provided on the outer housing. Port means are provided in the mandrel for communicating fluid pressure to act on the housing piston portion in the annular cylinder, and shear means connect the outer housing and mandrel to restrain relative longitudinal movement therebetween, such shear means being releasable when a predetermined fluid pressure is applied to the housing piston portion so that longitudinal movement of the outer housing relative to the mandrel may be effected to engage the slip segments with the segmented cone means and the cone shaped enlargment to radially expand the slip segments into gripping relationship with a well bore casing.

REFERENCES:
patent: 2328840 (1943-09-01), O'Leary
patent: 2467801 (1949-04-01), Baker
patent: 3223170 (1965-12-01), Mott

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