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Rapidly cooling a geologic formation in which a wellbore is formed

  • US 10,450,839 B2
  • Filed: 08/09/2018
  • Issued: 10/22/2019
  • Est. Priority Date: 08/15/2017
  • Status: Active Grant
First Claim
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1. A wellbore tool comprising:

  • a first chamber configured to be positioned within a wellbore, the first chamber comprising a cooling fluid;

    a second chamber positioned uphole of the first chamber, the first chamber and the second chamber configured to be lowered to a position within the wellbore, the second chamber comprising a cold source at a sub-zero temperature, the cooling fluid configured to be cooled upon contacting the cold source;

    a separation member positioned between the first chamber and second chamber, the separation member separating the cooling fluid and the cold source; and

    an activation device connected to the separation member, the activation device configured to cause the separation member to allow the cold source to contact the cooling fluid.

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