Deformable blades for downhole applications in a wellbore

Details Deformable blades for downhole applications in a wellbore Deformable blades for downhole applications in a wellbore

E - Fixed Constructions

21

B

E21B 21/08 (2006.01) E21B 4/02 (2006.01) E21B 7/18 (2006.01) E21B 47/12 (2006.01) E21B 47/18 (2006.01)

Patent

CA 2456797

A method and apparatus for controlling fluidic torque in a downhole tool is provided. One or more rotatable components of the downhole tool comprise a deformable material, such as rubber or SMA, selectively deformable in response to the flow, of fluid through the downhole tool. The rotatable components may include a rotor and/or a turbine of a generator in the downhole tool. Non-rotatable components, such as the stator of the generator, may also be deformable. The rotor, the stator, and/or turbine may comprise a deformable material capable of selectively deforming in response to the flow of drilling mud through the generator. The desired deformation and/or the desired torque may be controlled by adjusting the parameters of the components.

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