1
Charles H Ware, Leslie C Rose, Joseph C Allen: Recovery of oil by in situ hydrogenation. World Energy Systems, Arthur F Zobal, July 1, 1986: US04597441 (278 worldwide citation)

In a method of recovering petroleum from underground formations penetrated by a production well, superheated steam and then hot hydrogen are injected by way of the well into a preheated formation zone next to the well. The hydrogen is injected under sufficient pressure to cause hydrogenation of the ...


2
Joseph C Allen: Method for recovering subsurface earth substances. Barber Heavy Oil Process, Bard & Groves, March 24, 1981: US04257650 (139 worldwide citation)

This invention relates to methods and systems for recovering high viscosity oils, petroleum substances and other minerals from subsurface earth formations. In particular, one or more large diameter shaft holes are provided which preferably terminate in an enlarged subterranean chamber. A plurality o ...


3
Joseph C Allen: Method for recovering high viscosity oils. Heavy Oil Process, Bard Groves Sroufe Bishop & Berger, October 18, 1983: US04410216 (81 worldwide citation)

Improved methods and apparatus are provided for recovering high viscosity oils from sub-surface earth formations. In particular, a large diameter shaft hole is employed and a plurality of substantially horizontal drill holes extend radially from the shaft hole into the formation. It is a feature of ...


4
Joseph C Allen: Method and apparatus for recovering high viscosity oils. Heavy Oil Process, Bard Groves Sroufe Bishop & Berger, March 6, 1984: US04434849 (63 worldwide citation)

Improved methods and apparatus are provided for recovering high viscosity oils from a sub-surface earth formation utilizing horizontal well apparatus. A plurality of horizontal drill holes extend from a large diameter vertical shaft hole into the formation of interest. Steam may be injected into the ...


5
Joseph C Allen: Carrier gas vaporized solvent oil recovery method. Texaco, T H Whaley, C G Ries, Jack H Park, February 22, 1977: US04008764 (49 worldwide citation)

Viscous petroleum may be recovered from viscous petroleum-containing formations including tar sand deposits by injecting into the formation a gaseous mixture of a carrier gas and a solvent which is liquid at reservoir conditions, such as pentane, hexane, heptane, octane, carbon disulfide, etc., and ...


6
Joseph C Allen, Jack F Tate: Terpolymer of N-vinyl pyrrolidone in alkoxylated form. Texaco, Carl G Ries, Robert A Kulason, Walter D Hunter, July 7, 1981: US04277580 (41 worldwide citation)

The production of hydrocarbons from a subterranean hydrocarbon-bearing formation containing acid-soluble components, such as one composed at least in part of dolomite or limestone, is stimulated by injecting into the formation usually via casing and cement pack perforations a composition comprising ...


7
Joseph C Allen, Charles D Woodward, Alfred Brown, Ching H Wu: Heated multiple solvent method for recovering viscous petroleum. Texaco, T H Whaley, C G Ries, Jack H Park, February 15, 1977: US04007785 (35 worldwide citation)

Viscous petroleum may be recovered from viscous petroleum-containing formations including tar sand deposits by contacting the formation with a heated multiple-component solvent for the petroleum. At least one solvent component is normally gaseous material such as methane, ethane, propane or butane a ...


8
Joseph C Allen: Oil recovery process utilizing aromatic solvent and steam. Texaco, Carl G Ries, Thomas H Whaley, Walter D Hunter, January 17, 1978: US04068716 (34 worldwide citation)

Petroleum may be recovered from viscous petroleum containing formations including tar sand deposits by first creating a fluid communication path in the formation, followed by injecting via an injection well an aromatic solvent such as benzene, saturated with carbon dioxide at the injection pressure ...


9
Joseph C Allen, Harley L Tanner: Thermal oil recovery method. Texaco, Carl G Ries, Thomas H Whaley, Jack H Park, March 14, 1978: US04078608 (32 worldwide citation)

Viscous oil may be recovered from subterranean, viscous oil-containing formations by injecting a heated aqueous fluid into the formation to raise the temperature of the viscous petroleum, and to displace it toward a remotely located production well. The heated aqueous fluid, which may be liquid, gas ...


10
Joseph C Allen: Method of in situ recovery of viscous oils and bitumens. Texaco, Thomas H Whaley, Carl G Ries, Charles L Bauer, May 31, 1977: US04026358 (31 worldwide citation)

A method for recovering low-gravity viscous oils and bitumen hydrocarbons from a subterranean hydrocarbon-bearing formation by injecting thereinto a hydrocarbon solvent saturated with a gas, and thereafter establishing a thermal sink in the formation, followed by a soak period, and production of the ...