Van Meurs Peter, de Rouffignac Eric Pierre, Vinegar Harold Jay, Lucid Michael Francis: Chauffage par conductivite dun gisement de schiste bitumineux pour promouvoir la permeabilite et lextraction subsequente du petrole, Conductively heating a subterranean oil shale to create permeabilityand subsequently produce oil. Shell Canada, SMART & BIGGAR, August 27, 1991: CA1288043 (318 worldwide citation)

A B S T R A C T CONDUCTIVELY HEATING A SUBTERRANEAN OIL SHALE TO CREATE PERMEABILITY AND SUBSEQUENTLY PRODUCE OIL Shale oil is subsequently produced from a subterraneaninterval of oil shale, where the interval is initiallysubstantially impermeable and contains a specified grade andthickness of oil s ...

Van Egmond Cornelis Fh, Vanmeurs Peter: Dispositif de chauffage longitudinal a resistance electrique a debit de chaleur variable, Heating rate variant elongated electrical resistance heater. Shell Canada, SMART & BIGGAR, May 2, 1989: CA1253555 (294 worldwide citation)

A B S T R A C T HEATING RATE VARIANTELONGATED ELECTRIC RESISTANCE HEATER An electrical resistance heater capable of generating heat atdifferent rates at different locations along its length comprises acontinuous and unitary electrical conductor having a thicknesswhich is different at different locat ...

Frederick C Stuchberry, Alfred E Backstrom: Process for recovery of bitumen from a bituminous froth. Shell Canada, Shell Explorer, July 12, 1977: US04035282 (86 worldwide citation)

An improved method for recovery of bitumen form bituminous froth is disclosed having particular application in hot water separation of tar sands wherein comminuted tar sand is slurried in hot water, subject to gravity separation to isolate a bituminous froth, containing water and mineral matter, and ...



Power William James, Birkholz Robert Karl Otto, Tipman Norman Robert: Methode de traitement dune mousse de sable bitumineux diluee, Method for processing a diluted oil sand froth. Shell Canada, Shell Canada, SMART & BIGGAR, May 25, 2004: CA2232929 (38 worldwide citation)

A method for processing an oil sand froth that is withdrawn as an underflow stream (5) from a primary bitumen froth separation vessel (4) comprises the steps of vigorously agitating the underflow in an agitating tank (6) at such a shear level that agglomerates of asphaltenes and clays are formed whi ...


Hill James, Kiktavy Michael, Fryer Scott John, Wallace Dean: Recovery of bitumen from oil sands using sonication. Shell Canada Energy A General Partnership Formed Under The Laws Of The Province Of Alberta, Chevron Canada, Marathon Oil Sands, Sonic Technology Solutions, Hill James, Kiktavy Michael, Fryer Scott John, Wallace Dean, SMART PO Box 2999 Station D900 55 Metcalfe StreetOttawa Ontario K1P 5Y6, September 24, 2009: WO/2009/114934 (28 worldwide citation)

The present invention is directed to a method for separating bitumen from oil sand using sonic energy. In particular, the invention is directed to a method for recovering bitumen from an oil sand extraction process by sonicating a bitumen-water slurry such that the viscosity of the slurry is reduced ...


Tee S Ong, Ronald A Hamm: Recovering hydrocarbons from tar sand or heavy oil reservoirs. Pecten International Company, Shell Canada, June 7, 1994: US05318124 (25 worldwide citation)

Method of recovering fluids from an underground tar sand reservoir or heavy oil reservoir comprising (a) drilling and completing a first pair of wells and a second pair of wells, each pair comprising an injection well terminating in the reservoir and a production well terminating in the reservoir be ...