Low temperature barrier wellbores formed using water flushing
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Abstract
A method of forming an opening for a low temperature well is described. The method includes drilling an opening in a formation. Water is introduced into the opening to displace drilling fluid or indigenous gas in the formation adjacent to a portion of the opening. Water is produced from the opening. A low temperature fluid is applied to the opening.
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Citations
893 Claims
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1-880. -880. (canceled)
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881. A method of forming an opening for a low temperature well, comprising:
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drilling an opening in a formation;
introducing water into the opening to displace drilling fluid or indigenous gas in the formation adjacent to a portion of the opening;
producing water from the opening; and
applying a low temperature fluid to the opening. - View Dependent Claims (882, 883, 884, 885, 886, 887, 888)
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889. A freeze well system for forming a barrier in a formation, comprising:
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an opening formed in the formation, wherein the opening has been treated with water introduced and removed from at least a portion of the opening after completion of the opening;
a canister placed in the opening, the canister configured to contain a heat transfer fluid used to cool the portion of the formation proximate to the opening; and
a refrigeration system configured to provide Cheat transfer fluid to the canister. - View Dependent Claims (890, 891)
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892. A composition comprising hydrocarbons, wherein the hydrocarbons are produced from a subsurface formation surrounded in part by a frozen barrier system, the frozen barrier system comprising:
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an opening formed in the formation, wherein the opening has been treated with water introduced and removed from at least a portion of the opening after completion of the opening;
a canister placed in the opening, the canister configured to contain a heat transfer fluid used to cool the portion of the formation proximate to the opening; and
a refrigeration system configured to provide the heat transfer fluid to the canister.
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893-1065. -1065. (canceled)
Specification