Resources Contact Us Home
Method for simulating drilling of roller cone bits and its application to roller cone bit design and performance

Image Number 13 for United States Patent #6873947.

A method for simulating the drilling performance of a roller cone bit drilling an earth formation may be used to generate a visual representation of drilling, to design roller cone drill bits, and to optimize the drilling performance of a roller cone bit. The method for generating a visual representation of a roller cone bit drilling earth formations includes selecting bit design parameters, selecting drilling parameters, and selecting an earth formation to be drilled. The method further includes calculating, from the bit design parameters, drilling parameters and earth formation, parameters of a crater formed when one of a plurality of cutting elements contacts the earth formation. The method further includes calculating a bottomhole geometry, wherein the crater is removed from a bottomhole surface. The method also includes incrementally rotating the bit and repeating the calculating of crater parameters and bottomhole geometry based on calculated roller cone rotation speed and geometrical location with respect to rotation of said roller cone drill bit about its axis. The method also includes converting the crater and bottomhole geometry parameters into a visual representation.

  Recently Added Patents
Sealed, waterproof digital electronic camera system and method of fabricating same
Non-volatile memory cell containing a nano-rail electrode
Coffee cup stationery tab
Low-complexity motion vector prediction systems and methods
Integrated analyses of breast and colorectal cancers
Method and composition for hyperthermally treating cells
Nestable shallow container
  Randomly Featured Patents
System and method for improved data transmission reliability over a network
Transparently increasing power savings in a power management environment
Discharge lamp with bimetal starter
Backpressure relief valve
Speed control of an electrically-actuated fluid pump
Cooling system for rock ripper tip
Detector assembly comprising a cap assembly including a radially expandable member
Male and/or female electrical connectors
Method and apparatus for power management using transmission mode with reduced power