METHOD FOR PRODUCING HYDROCARBONS FROM SUBTERRANEAN RESERVOIR WITH SOLVENT AND CONTROLLED HEATING

A method of producing hydrocarbons from a subterranean reservoir comprises producing a liquid mixture from the reservoir, the liquid mixture comprising an injected solvent, hydrocarbons mobilized by the injected solvent, and asphaltenes; and heating the liquid mixture in a production zone, before th...

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Hauptverfasser: AZOM, PRINCE, SEIB, BRENT DONALD, BEN-ZVI, AMOS
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:A method of producing hydrocarbons from a subterranean reservoir comprises producing a liquid mixture from the reservoir, the liquid mixture comprising an injected solvent, hydrocarbons mobilized by the injected solvent, and asphaltenes; and heating the liquid mixture in a production zone, before the liquid mixture is produced, to reduce asphaltene precipitation and deposition in the production zone or to limit growth of an asphaltene-rich phase in the liquid mixture, at a temperature below a bubble point temperature of the solvent in the liquid mixture under a reservoir pressure.