Representation of whirl in fixed cutter drill bits

Details Representation of whirl in fixed cutter drill bits Representation of whirl in fixed cutter drill bits

E - Fixed Constructions

21

B

E21B 10/43 (2006.01) E21B 10/55 (2006.01) E21B 10/567 (2006.01)

Patent

CA 2564531

Disclosed is a method of comparing the relative lateral stability among drill bits (that is, the tendency for a bit to whirl). This allows improved bit selection in applications where whirl is apparent. Because there will likely be many different acceptable bit designs produced by the above method, the comparison of the regenerative forces among these bits allows a customer to make a more informed choice between stability and other performance features among a range of bit designs.

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