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Method and apparatus for the detection of bubble point pressure

  • US 6,758,090 B2
  • Filed: 07/26/2002
  • Issued: 07/06/2004
  • Est. Priority Date: 06/15/1998
  • Status: Expired due to Term
First Claim
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1. A method of fluid analysis for determining phase characteristics of a formation fluid, comprising the steps:

  • a. withdrawing a sample under borehole-like conditions;

    b. depressurizing said sample;

    c. nucleating bubble formation in said sample by activating an ultrasonic source in fluid communication with said sample; and

    d. detecting onset of bubble formation in said sample by monitoring the compressibility of said sample.

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