Movable joint bent sub

Details Movable joint bent sub Movable joint bent sub

1993-05-17

1994-05-24

Novosad, Stephen J.

Boring or penetrating the earth

Means traveling with tool to constrain tool to bore along...

Sectional guide or shaft having means to lock sections in...

166 664, 175321, 175256, 285184, E21B 708

Patent

active

053140320

ABSTRACT:
A movable joint bent sub for attachment to a well conduit for use in deviated drilling of a well. An elongated housing is provided having one end for attachment to a well conduit, a mandrel is telescopically movable in the bore of the housing, and a movable body is pivotally connected to the mandrel and is longitudinally movable in the housing. Coacting cam surfaces on the body in the housing pivot the body to a desired deviation when the mandrel is telescopically moved in the bore. A releasable lock may be provided between the mandrel and the housing.

REFERENCES:
patent: 5048621 (1991-09-01), Bailey et al.
patent: 5070950 (1991-12-01), Cendre et al.
patent: 5101915 (1992-04-01), Witte
patent: 5125463 (1992-06-01), Livingstone et al.

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