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公开(公告)号：US11021942B2
公开(公告)日：2021-06-01
申请号：US16629682
申请日：2018-07-17
申请人： Hatch Ltd.
发明人： Mark Anthony Eichhorn , Paul Krawchuk , Gharandip Singh Bawa , Adam Douglas Blackmore , Cassandra Amanda Lee
摘要： A method of managing a liquid solvent inventory in a condensing solvent gravity drainage extraction chamber includes growing the extraction chamber by injecting a solvent vapour under conditions which cause at least a portion of the solvent vapour to condense on a hydrocarbon extraction interface at a condensation temperature, then accumulating within the extraction chamber condensed liquid solvent which is draining through the chamber under the influence of gravity, which liquid solvent includes a hydrocarbon rich fluid production layer which is proximal to said extraction interface, and then heating a portion of the extraction chamber from a location near, in and/or above the injector to create a heated zone having a temperature above the condensation temperature without heating the hydrocarbon rich production layer to permit the hydrocarbon rich production layer to continue to drain to a production well.
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公开(公告)号：US20200378228A1
公开(公告)日：2020-12-03
申请号：US16629682
申请日：2018-07-17
申请人： Hatch Ltd.
发明人： Mark Anthony Eichhorn , Paul Krawchuk , Gharandip Singh Bawa , Adam Douglas Black-More , Cassandra Amanda Lee
摘要： A method of managing a liquid solvent inventory in a condensing solvent gravity drainage extraction chamber includes growing the extraction chamber by injecting a solvent vapour under conditions which cause at least a portion of the solvent vapour to condense on a hydrocarbon extraction interface at a condensation temperature, then accumulating within the extraction chamber condensed liquid solvent which is draining through the chamber under the influence of gravity, which liquid solvent includes a hydrocarbon rich fluid production layer which is proximal to said extraction interface, and then heating a portion of the extraction chamber from a location near, in and/or above the injector to create a heated zone having a temperature above the condensation temperature without heating the hydrocarbon rich production layer to permit the hydrocarbon rich production layer to continue to drain to a production well.
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