Liner hanger with lost motion coupling

Details Liner hanger with lost motion coupling Liner hanger with lost motion coupling

1985-02-13

1986-04-08

Novosad, Stephen J.

Wells

Expansible anchor or casing

Liner hanger

166210, 166216, 166382, E21B 2300

Patent

active

045806314

ABSTRACT:
Disclosed is a support structure, such as a liner hanger, for use in a well, including an assembly of slips for wedging to the interior surface of the surrounding well, but maintained off of wedging surfaces in a running in configuration by a drag assembly and latch mechanism connected to the hanger body carrying the wedges. As the latch is configured to permit setting of the support structure, a lost motion coupling joining the slip assembly with the drag and latch assembly permits rotational and limited longitudinal movement therebetween as the slip system moves rotationally, and possibly longitudinally to a limited extent, with the hanger body relative to the drag assembly.

REFERENCES:
patent: Re30988 (1982-07-01), Crickmer
patent: 2670045 (1948-09-01), Armentrout
patent: 3195646 (1965-07-01), Brown
patent: 3382927 (1968-05-01), Davis, Jr.
patent: 3570599 (1971-03-01), Wilson et al.
patent: 3910349 (1975-10-01), Brown et al.
patent: 4311194 (1982-01-01), White
Composite Catalog of Oil Field Equipment and Services, published by World Oil, 1978-1979, pp. 1058-1065.

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