Drilling tool with non rotating sleeve

Details Drilling tool with non rotating sleeve Drilling tool with non rotating sleeve

E - Fixed Constructions

21

B

E21B 10/00 (2006.01) E21B 7/04 (2006.01) E21B 7/06 (2006.01) E21B 17/10 (2006.01)

Patent

CA 2387299

The invention refers to a drilling tool and method that, among other aspects, provides for a sleeve with expansible pads for positioning-the drilling tool in the desired direction during drilling. The pads are hydraulically expanded and retracted by a valve system which selectively diverts mud flowing through the tool to the desired pads. The tool may also be provided with a flexible tube connecting the sleeve to drilling tool for maneuvering along deviations or curves in the wellbore.

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