1
David A Redford: In situ gasification of solid hydrocarbon materials in a subterranean formation. Texaco Exploration Canada, Thomas H Whaley, Carl G Ries, Jack H Park, May 31, 1977: US04026357 (245 worldwide citation)

Solid hydrocarbon materials present in subsurface earth formation such as, for example, the coke like residue remaining in a subterranean tar sand deposit which has previously been exploited by controlled oxidation depletion, is converted to a synthesis gas composition by contacting the solid hydroc ...


2
Phillip J Cram, David A Redford: Thermal recovery of hydrocarbons from tar sands. Texaco Exploration Canada, Thomas H Whaley, Carl G Ries, Charles L Bauer, November 23, 1976: US03993132 (228 worldwide citation)

A method for the recovery of low API gravity viscous oils or bitumen from a subterranean formation by the injection of a mixture of an oxygen-containing gas and steam having an optimum gas/steam ratio that is decreased as the cumulative amount of steam is increased.


3
David A Redford, Stephen M Creighton: Thermal recovery of hydrocarbon from tar sands. Texaco Exploration Canada, T H Whaley, C G Ries, Charles L Bauer, February 8, 1977: US04006778 (222 worldwide citation)

A method for the recovery of low API gravity viscous oils or bitumens from a subterranean formation by the injection of a mixture of an oxygen-containing gas and steam at a temperature corresponding to the temperature of saturated steam at the pressure of the formation.


4
Redford David Arthur: Method for establishing communication path in viscous petroleum-containing formations including tar sand deposits for use in oil recovery operations. Texaco Exploration Canada, Whaley Thomas H, Ries Carl G, Park Jack H, September 30, 1975: US3908762 (50 worldwide citation)

Many oil recovery techniques for viscous oil recovery such as recovery of bitumen from tar sand deposits, including steam injection and in situ combustion, require establishment of a high permeability interwell fluid flow path in the formation. The method of the present invention comprises forming a ...


5
Redford David Arthur, Allen Joseph Columbus: Method for recovering petroleum from viscous petroleum containing formations including tar sands. Texaco Exploration Canada, Texaco, Whaley T H, Ries C G, October 1, 1974: US3838738 (49 worldwide citation)

Petroleum may be recovered from viscous petroleum containing formations including tar sand deposits by first creating a fluid communication path low in the formation, followed by injecting a heated fluid, aqueous or nonaqueous, into the fluid communication path, followed by injecting a volatile solv ...


6
David Arthur Redford: Hydraulic mining technique for recovering bitumen from tar sand deposit. Texaco Exploration Canada, T H Whaley, C G Ries, Jack H Park, April 20, 1976: US03951457 (42 worldwide citation)

Viscous petroleum including bitumen may be recovered for subterranean petroleum containing unconsolidated said formations such as tar sand deposits by hydraulic mining. Hot water or steam is introduced into the subterranean deposit with sufficient velocity to dislodge bitumen and particles of sand t ...


7
David A Redford: Viscous oil recovery method. Texaco Exploration Canada, Carl G Ries, Thomas H Whaley, Jack H Park, November 28, 1978: US04127170 (36 worldwide citation)

Viscous petroleum may be recovered from formations in a process employing steam and a light hydrocarbon, and a cyclical injection-production program comprising repetitive cycles, each comprising three steps. First steam or steam and hydrocarbons are injected and liquids are recovered from the format ...


8
David W Kalinowski: Tension leg structure with riser stabilization. Texaco Exploration Canada, T H Whaley, C G Ries, Robert B Burns, December 14, 1976: US03996755 (28 worldwide citation)

A tension leg marine structure or working platform which is floatably positioned above an offshore working site, being maintained in place by a plurality of tension cables that connect to anchors at the sea floor. A riser which extends between the structure and the sea floor is laterally supported b ...


9
David A Redford: Method for recovery of bitumens from tar sands. Texaco Exploration Canada, T H Whaley, C G Ries, Charles L Bauer, September 7, 1976: US03978925 (26 worldwide citation)

A method for the recovery of low gravity viscous oils or bitumens from a subterranean formation by the injection of a mixture of an oxygen-containing gas and steam to establish a hot communications path, followed by a shutting in of the wells for a period to allow the oxygen to react with the oil or ...


10
David A Redford, David L Mitchell: Method for recovering viscous asphaltic or bituminous petroleum. Texaco Exploration Canada, T H Whaley, C G Ries, Jack H Park, February 17, 1976: US03938590 (22 worldwide citation)

Disclosed is a process for recovering petroleum from subterranean, viscous asphaltic or bituminous petroleum-containing formations, including subterranean tar sand deposits. A zone of gas permeability is established in the formation first, such as by fracturing or gas sweeping a section of the forma ...



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