04706751 is referenced by 299 patents and cites 11 patents.

Heavy oil is recovered from deep reservoirs by injection of a gaseous mixture containing hydrogen, steam and in some cases oil soluble gases and/or vapors. This mixture is produced by a reversible exothermic catalytic reaction in a down-hole reactor and injected into a well drilled, preferably horizontally, into the reservoir. The reactor feed streams are prepared in surface facilities with low air pollution, using as feedstocks water, air and inexpensive fuels, such as natural gas, coke or residual fuel oil.

The heavy oil contacted by the injected gaseous mixture is formed into a mobile oil bank of reduced viscosity, which is produced to the surface by means of production wells or by alternatively using the injection well in a production mode. The process is of particular interest for reservoirs deeper than 1,000 feet, located in the vicinity of natural gas fields, oil refineries or coal mines.

Heavy oil recovery process
Application Number
Publication Number
Application Date
January 31, 1986
Publication Date
November 17, 1987
Michel Gondouin
San Rafael
S Cal Research
E21B 43/40
E21B 43/30
E21B 43/24
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