Roller cone drill bit having non-axisymmetric cutting...

Details Roller cone drill bit having non-axisymmetric cutting... Roller cone drill bit having non-axisymmetric cutting...

E - Fixed Constructions

21

B

E21B 10/08 (2006.01) E21B 10/16 (2006.01)

Patent

CA 2355393

A method for optimizing drilling performance of a roller cone drill bit is disclosed. The method includes simulating drilling with the bit in a selected earth formation to determine at least one drilling performance parameter. The orientation of at least one non-axisymmetric cutting element on the bit is adjusted and the simulating the drilling and determining the at least one performance parameter are repeated. The adjusting and simulating the drilling are repeated until the at least one performance parameter is determined to be at an optimum value. In one embodiment, the performance parameter includes rate of penetration.

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