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Obtaining and evaluating downhole samples with a coring tool

  • US 9,650,891 B2
  • Filed: 12/03/2013
  • Issued: 05/16/2017
  • Est. Priority Date: 09/18/2006
  • Status: Active Grant
First Claim
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1. A method of preserving hydrocarbon samples obtained from an underground formation, comprising:

  • delivering an apparatus comprising a coring tool to the formation;

    obtaining a first core sample from the formation using the coring tool, the first core sample including a hydrocarbon therein;

    capturing the first core sample in a first container in the apparatus;

    obtaining a second core sample from the formation using the coring tool, the second core sample including the hydrocarbon therein;

    capturing the second core sample in a second container in the apparatus;

    sealing the first container downhole with the hydrocarbon contained therein, wherein sealing the first container includes abutting the second container to an open end of the first container downhole;

    storing the sealed first container in the apparatus; and

    retrieving the apparatus with the sealed first container to the surface.

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