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KICK WARNING SYSTEM USING HIGH FREQUENCY FLUID MODE IN A BOREHOLE

  • US 20060016592A1
  • Filed: 07/21/2004
  • Published: 01/26/2006
  • Est. Priority Date: 07/21/2004
  • Status: Active Grant
First Claim
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1. A method for detecting a kick in a borehole, comprising:

  • acquiring a set of measurements with a sonic tool in the borehole;

    determining borehole mud slowness from the set of measurements; and

    comparing the mud slowness with a selected criterion, wherein the determining the mud slowness comprises determining fluid mode slowness as a function of frequency for at least one fluid mode, and determining the mud slowness from the fluid mode slowness.

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