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

Image Number 14 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
Formation of an optical waveguide
Domestic soda-water preparing device
Asymmetric switching rectifier
Computer device with digitizer calibration system and method
Use of Lactobacillus for liver protection
Near-field transducers for focusing light
Catalysts for polyurethane coating compounds
  Randomly Featured Patents
Complementary MOSFET device
Removal of drag reducer additive from liquid hydrocarbon fuel using attapulgus clay
Rear bumper for an automobile
Elevator based security system
Faucet handle
Handle for medical device
Method of producing hydrodynamic type porous oil-impregnated bearing
Top for a lavatory or similar article
Grinding segment and grinder stone
Half-mode substrate integrated antenna structure