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Pump operation procedure with piston position sensor

  • US 10,024,315 B2
  • Filed: 12/19/2014
  • Issued: 07/17/2018
  • Est. Priority Date: 12/19/2014
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • providing a pump assembly that includes a displacement unit and one or more pumps that activate the displacement unit;

    characterizing the one or more pumps to determine one or more performance characteristics of the one or more pumps;

    under operating conditions of a first environment, calibrating a sensor associated with the displacement unit;

    under operating conditions of a second environment, calibrating the sensor associated with the displacement unit; and

    under operating conditions of the second environment, calibrating the one or more pumps to determine one or more performance characteristics of the one or more pumps at the operating conditions of the second environment; and

    using the calibrated pump assembly to draw fluid from a subterranean formation.

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