EXTRACTION OF HYDROCARBONS FROM HYDROCARBON-CONTAINING MATERIALS AND/OR PROCESSING OF HYDROCARBON-CONTAINING MATERIALS

  • US 20130240206A1
  • Filed: 02/26/2013
  • Published: 09/19/2013
  • Est. Priority Date: 09/20/2007
  • Status: Active Grant
First Claim
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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, the method comprising the steps of extracting the hydrocarbon-containing organic matter by a process comprising:

  • providing an injection well, said injection being in fluid communication with the sub-surface formation;

    providing a substantially surfactant-free first liquid comprising a non-aqueous hydrocarbon-extracting liquid comprising a turpentine liquid;

    injecting the hydrocarbon-extracting liquid through the injection well and into the formation, wherein the hydrocarbon-extracting liquid and the hydrocarbon-containing organic matter from the hydrocarbon containing sub-surface formation form an extraction mixture comprising at least a portion of the extraction mixture hydrocarbon-containing organic matter in at least a portion of the hydrocarbon-extracting 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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