Extraction of hydrocarbons from hydrocarbon-containing materials and/or processing of hydrocarbon-containing materials
DCFirst Claim
1. A method for increasing recovery of hydrocarbon-containing organic matter from a production well coupled to a hydrocarbon-containing sub-surface formation, the subsurface formation comprising hydrocarbon-containing material by contacting the hydrocarbon-containing organic matter with a substantially surfactant-free non-aqueous hydrocarbon-extracting composition comprising the steps of:
- providing an injection well, said injection being in fluid communication with the sub-surface formation;
providing said substantially surfactant-free non-aqueous hydrocarbon-extracting composition, wherein said composition consists essentially of a turpentine liquid;
injecting the substantially surfactant-free non-aqueous hydrocarbon-extracting composition through the injection well and into the formation, wherein the substantially surfactant-free non-aqueous hydrocarbon-extracting composition and the hydrocarbon-containing organic matter from the hydrocarbon containing sub-surface formation form an extraction mixture comprising at least a portion of the hydrocarbon-containing organic matter extracted into turpentine liquid;
recovering the extraction mixture from the formation through the production well; and
separating the extraction mixture to produce a hydrocarbon product stream and a hydrocarbon-extracting liquid stream.
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Abstract
A method of extracting hydrocarbon-containing organic matter from a hydrocarbon-containing material includes the steps of providing a first liquid comprising a turpentine liquid; contacting the hydrocarbon-containing material with the turpentine liquid to form an extraction mixture; extracting the hydrocarbon material into the turpentine liquid; and separating the extracted hydrocarbon material from a residual material not extracted.
178 Citations
13 Claims
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1. A method for increasing recovery of hydrocarbon-containing organic matter from a production well coupled to a hydrocarbon-containing sub-surface formation, the subsurface formation comprising hydrocarbon-containing material by contacting the hydrocarbon-containing organic matter with a substantially surfactant-free non-aqueous hydrocarbon-extracting composition comprising the steps of:
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providing an injection well, said injection being in fluid communication with the sub-surface formation; providing said substantially surfactant-free non-aqueous hydrocarbon-extracting composition, wherein said composition consists essentially of a turpentine liquid; injecting the substantially surfactant-free non-aqueous hydrocarbon-extracting composition through the injection well and into the formation, wherein the substantially surfactant-free non-aqueous hydrocarbon-extracting composition and the hydrocarbon-containing organic matter from the hydrocarbon containing sub-surface formation form an extraction mixture comprising at least a portion of the hydrocarbon-containing organic matter extracted into turpentine liquid; recovering the extraction mixture from the formation through the production well; and separating the extraction mixture to produce a hydrocarbon product stream and a hydrocarbon-extracting liquid stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification