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Formation testing

  • US 10,711,607 B2
  • Filed: 10/05/2018
  • Issued: 07/14/2020
  • Est. Priority Date: 04/27/2010
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • (a) collecting data pertaining to at least one of a subterranean formation penetrated by a wellbore and a fluid in the subterranean formation;

    (b) determining initial threshold values of test operating parameters for a test to be performed utilizing a testing tool positioned in the wellbore proximate the subterranean formation, wherein determining the initial threshold values is based on the collected data and a testing tool configuration to be utilized to perform the test;

    (c) predicting wellbore fluid pressures along an open hole portion of the wellbore by performing a thermo-hydraulic simulation of the test utilizing the determined initial threshold values and the testing tool configuration;

    (d) analyzing the predicted wellbore fluid pressures and, based thereon, determining that the predicted wellbore fluid pressures along the open hole portion of the wellbore are indicative of a well integrity problem, and then updating the test by adjusting at least one of;

    a value of at least one of the test operating parameters; and

    the testing tool configuration;

    (e) iteratively repeating (c) and (d) until analysis of the predicted wellbore fluid pressures along the open hole portion of the wellbore is not indicative of a well integrity problem; and

    then(f) performing the updated test via operation of the testing tool in the wellbore.

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