1
John C Todd: Method of producing viscous materials from subterranean formations. Petro Canada Exploration, Canada Cities Services, Imperial Oil, Hubbard Thurman Turner Tucker & Glaser, April 18, 1978: US04084637 (257 worldwide citation)

A method of producing viscous materials from subterranean formation comprises a plurality of steps. At least two wells are drilled and completed into the subterranean formation that contains the viscous material. At least one of the wells is completed as an injection well and one of the wells is com ...


2
Loyd R Kern, Thomas K Perkins: Method for reducing power loss associated with electrical heating of a subterranean formation. Petro Canada Exploration, Imperial Oil, Canada Cities Service, Ronnie D Wilson, March 8, 1977: US04010799 (174 worldwide citation)

Method for reducing the loss of power accompanying the transmission of electrical energy down a wellbore to heat a subterranean formation via electrical conduction between a plurality of wells completed therein, characterized by providing a low frequency alternating current to the conductors in the ...


3
Robert Tipman, Yi Cheng Long, William Edward Shelfantook: Solvent process for bitumen seperation from oil sands froth. AEC Oil Sands, AEC Oil Sands Partnership, Athabasca Oil Sands Investments, Canadian Occidental Petroleum, Canadian Oil Sands Investments, Gulf Canada Resources, Imperial Oil Resources, Mocal Energy, Murphy Oil Company, Petro Canada, Millen White Zelano & Branigan P C, April 10, 2001: US06214213 (73 worldwide citation)

A paraffinic solvent is mixed with bitumen froth containing water and solids. Sufficient solvent is added to induce inversion when the mixture is subjected to gravity or centrifugal forces. The emulsion reports to the water phase and a dry bitumen product virtually free of inorganic solids, is obtai ...


4
Patrick Berstein: Transaction terminal system. Imperial Oil, Ridout & Maybee, December 10, 1985: US04558211 (60 worldwide citation)

In a transaction terminal system including a central computer and a number of remote intelligent terminals in intermittent communication with the central computer, the central computer periodically updates local hot card files at the terminals from a master hot card file. Hot card data stored at the ...


5
Mitchell David L, Speight James G: Preparation of mineral free asphaltenes. Canada Cities Service, Imperial Oil, Atlantic Richfield Canada, Gulf Oil Canada, December 18, 1973: US3779902 (44 worldwide citation)

Disclosed herein is an invention directed to a method of deasphalting in which a desired amount of asphalt is removed by adjusting the solvent power of the solvent-feed system to obtain a desired cotangent theta for the system. Also disclosed is the application of the cotangent theta principle to tw ...


6
Waldemar Maciejewski, George Cymerman: Cycloseparator for removal of coarse solids from conditioned oil sand slurries. AEC Oil Sands, AEC Oil Sands Partnership, Athabasca Oil Sands Investments, Canadian Occidental Petroleum, Canadian Oil Sands Investments, Gulf Canada Resources, Imperial Oil Resources, Mocal Energy, Murphy Oil Company, Petro Canada, Millen White Zelano & Branigan P C, September 19, 2000: US06119870 (37 worldwide citation)

A large capacity cyclonic separator is used for desanding a conditioned aqueous oil sand slurry comprising aerated bitumen, water and sand to produce pumpable, pipelineable lean froth and sand tailings. The cyclone separator is a vessel which forms an elongated cylindrical separation chamber and has ...


7
Jones Gerald D: Multi-pattern spraying apparatus. Imperial Oil, January 16, 1973: US3711030 (33 worldwide citation)

Apparatus for dispensing liquid in a plurality of spray patterns includes an aerosol container having an upwardly directed valve stem mounted on its top. An overcap is fitted over the top of the aerosol container and a spray head having a plurality of nozzle outlet apertures, each corresponding to a ...


8
Geoff Allcock, Robert Siy, Jonathan Spence, Ken Sury: Cold dense slurrying process for extracting bitumen from oil sand. Alberta Energy Company, AEC Oil Sands Partnership, Athabasca Oil Sands Investments, Canadian Occidental Petroleum, Canada Oil Sands Investments, Gulf Canada Resources, Imperial Oil Resources, Mocal Energy, Murphy Oil Company, Petro Canada, Millen White Zelano & Branigan P C, December 28, 1999: US06007708 (33 worldwide citation)

Average grade oil sand is mixed with water to produce a low temperature (20-35.degree. C.), dense (1.4-1.65 g/cc) slurry. The slurry is pumped through a pipeline for sufficient time to condition it. Air is injected into the slurry after the last pump. The slurry density is adjusted to about 1.5 g/cc ...


9
Jim McTurk, Ron Cleminson, Andrew Rosser: Jet pump system for forming an aqueous oil sand slurry. ACE Oil Sands, Canadian Oil Sands Commerical Trust, Canadian Oil Sands, ConocoPhillips Oilsands Partnership II, Imperial Oil Resources, Mocal Energy, Murphy Oil Company, Nexen, Petro Canada Oil and Gas, Millen White Zelano & Branigan P C, November 23, 2004: US06821060 (32 worldwide citation)

As-mined oil sand is crushed to −5 inch by a sequentially arranged pair of double roll crushers. The crushed oil sand is fed into a hopper feeding a jet pump. Water or recycled slurry is fed under pressure as motive fluid to the jet pump. The motive fluid jet(s) produced internally by the jet pump a ...


10
Robert Charley: Method of using polysaccharides to stabilize microorganisms for inoculating plant seeds. Imperial Oil, Edward F Sherer, March 8, 1994: US05292507 (31 worldwide citation)

Soluble, non-crosslinked polysaccharides are used to stabilize microorganisms for use as inoculants in agriculture. Preferably, the polysaccharide is alginate and plant seeds are inoculated. A solution of the polysaccharide and a suspension of the microorganism are mixed to form a composition contai ...