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Modeling and designing of well drilling system that accounts for vibrations

  • US 9,483,586 B2
  • Filed: 06/24/2013
  • Issued: 11/01/2016
  • Est. Priority Date: 02/02/2007
  • Status: Active Grant
First Claim
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1. A method of modeling drilling equipment comprising:

  • constructing two or more design configurations, wherein each of the design configurations represents at least a portion of a bottom hole assembly (BHA);

    identifying operating parameters for the two or more design configurations;

    selecting lateral model mathematical boundary conditions for a lateral beam bending mathematical model that provide system excitation through a lateral mode, wherein the two or more design configurations are subjected to identical lateral system excitation;

    calculating lateral beam bending results using the lateral beam bending mathematical model in a computer processor accessing non-transitory computer readable media, for each of the two or more design configurations using the identified operating parameters and the selected mathematical boundary conditions;

    comparing the calculated results for the two or more design configurations;

    displaying the calculated results of at least one of the two or more design configurations;

    selecting operating parameters for at least a portion of a bottom hole assembly design configuration, based on the calculated results for the two or more design configurations, and selecting at least a portion of the bottom hole assembly design configuration, based on the selected operating parameters; and

    drilling a well with drilling equipment based at least on the selected bottom hole assembly design configuration.

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