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System and apparatus for modeling the behavior of a drilling assembly

  • US 8,775,145 B2
  • Filed: 02/09/2012
  • Issued: 07/08/2014
  • Est. Priority Date: 02/11/2011
  • Status: Expired due to Fees
First Claim
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1. A method for drilling a borehole, comprising:

  • obtaining, while drilling the borehole, sensor data for the drilling assembly;

    analyzing, while drilling the borehole, the sensor data using a drilling behavior model to obtain results,wherein the drilling behavior model models drilling of the borehole using a distance drilled, a number of touch points, a number of bend angles, a number of external moments, a number of lengths of distributed weights, a lateral displacement of a center of the borehole at a bit, at least one vertical displacement from the center of the borehole, at least one angular offset, at least one force, and at least one mass per unit length; and

    adjusting the drilling of the borehole based on the results.

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