RAPIDLY COOLING A GEOLOGIC FORMATION IN WHICH A WELLBORE IS FORMED
First Claim
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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Accused Products
Abstract
A first chamber is configured to be positioned within a wellbore. The first chamber includes a cooling fluid. A second chamber is positioned uphole of the first chamber. The first chamber and the second chamber are configured to be lowered to a position within the wellbore. The second chamber includes a cold source at a sub-zero temperature. The cooling fluid is configured to be cooled upon contacting the cold source. A separation member is positioned between the first chamber and second chamber. The separation member separates the cooling fluid and the cold source. An activation device is connected to the separation member. The activation device is configured to cause the separation member to allow the cold source to contact the cooling fluid.
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Citations
20 Claims
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1. A wellbore tool comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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positioning a first chamber comprising a cooling fluid downhole relative to a second chamber comprising a cold source at a first sub-zero temperature, the cooling fluid configured to be cooled upon contacting the cold source, the cold source separated by the cooling fluid by a separation member, the first chamber and the second chamber lowered to a position within a wellbore formed in a formation; causing the cold source to contact the cooling fluid by activating the separation member, wherein a combination of the cold source and the cooling fluid cools to a second sub-zero temperature; and transferring at least a portion of the combination to the formation at the position. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A system comprising:
a canister configured to be positioned at a downhole location within a wellbore, the canister comprising; a cold source at a first sub-zero temperature; a cooling fluid configured to be cooled to a second sub-zero temperature in response to being contacted by the cold source; and a separation device that prevents the cold source from contacting the cooling fluid; and an activation mechanism connected to the canister, wherein, in response to a signal, the activation mechanism is configured to; cause the separation device to permit the cold source to contact the cooling fluid, and transfer at least a portion of a combination of the cold source and the cooling fluid to a wellbore wall at the downhole location. - View Dependent Claims (18, 19, 20)
Specification