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
One-dimensional metal nanostructures
Electronic device and recording medium
Compatibility check
Adjustable box extender
Method for increasing expression of active tumor necrosis factor receptor family member-Ig fusion proteins
Nonvolatile semiconductor memory device
Method and apparatus for verifiable generation of public keys
  Randomly Featured Patents
Transient detection circuit
Enforcing time-based transaction policies on devices lacking independent clocks
Device and process for liquid treatment of wafer-shaped articles
Method for displaying a charge level of a battery
Preparation of a magnetic dispersion
Ink container for ink jet printer, holder for the container, carriage for the holder, and ink jet printer
Solution mining of sodium minerals with acids generated by electrodialytic water splitting
Multi-cell container
Electrophoretic analysis of molecules using immobilized probes
Fluid concentrated hydroalcoholic compositions of copra or oil palm alkyl-amidopropylbetains