Downhole sub with kick pad for directional drilling

Details Downhole sub with kick pad for directional drilling Downhole sub with kick pad for directional drilling

E - Fixed Constructions

21

B

E21B 7/08 (2006.01) E21B 7/06 (2006.01)

Patent

CA 2231922

A downhole drill system comprising a drill string, a drill bit terminating the drill string, a bent sub in the drill string above the drill bit, a motor housing in the drill string above the drill bit and a downhole sub connected within the drill string to the motor housing. The downhole sub comprises an adaptor housing in the drill string above the motor housing, a mandrel connected to the adaptor housing, the mandrel having a shoulder facing the adaptor housing, the mandrel shoulder and the adaptor housing together forming an annular recess, a kick pad mounted for rotation in the annular recess and movable around the annular recess when the mandrel is disengaged from the adaptor housing and a lock mechanism for locking the kick pad in a fixed position relative to the adaptor housing when the mandrel is engaged with the adaptor housing.

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