Movable joint bent sub

Details Movable joint bent sub Movable joint bent sub

E - Fixed Constructions

21

B

E21B 7/06 (2006.01) E21B 17/07 (2006.01)

Patent

CA 2123293

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.

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