1
Donald J Anderson, Charles F Kirkvold, Peter Pisio: Method of recovering viscous petroleum from tar sand. Chevron Research Company, R L Freeland Jr, Edward J Keeling, November 30, 1976: US03994340 (275 worldwide citation)

Recovery of viscous petroleum such as from tar sands is assisted using a substantially vertical passage from the earth's surface which penetrates the tar sand and has extending therefrom a lateral hole containing a flow path isolated from the tar sand for circulating a hot fluid to and from the vert ...


2
Donald J Anderson, Charles F Kirkvold, Peter Pisio, John R Lishman: Recovering viscous petroleum from thick tar sand. Chevron Research Company, R L Freeland Jr, Edward J Keeling, November 30, 1976: US03994341 (255 worldwide citation)

Recovery of viscous petroleum such as from thick tar sands is assisted using a closed-loop flow path from the earth's surface through a substantial portion of the formation for conducting hot fluid to reduce the viscosity of the petroleum in the formation to develop a potential passage in the format ...


3
Donald J Anderson: Method of recovering viscous petroleum from an underground formation. Chevron Research Company, R L Freeland Jr, Edward J Keeling, July 26, 1977: US04037658 (173 worldwide citation)

Recovery of viscous petroleum such as from tar sands is assisted using a controlled flow of hot fluid in a flow path within the formation but out of direct contact with the viscous petroleum; thus a solid-wall, hollow tubular member in the formation is used for conducting hot fluid to reduce the vis ...


4
Donald J Anderson, Peter Pisio, Charles F Kirkvold: Method of recovering viscous petroleum from thick tar sand. Chevron Research Company, R L Freeland Jr, E J Keeling, February 22, 1977: US04008765 (25 worldwide citation)

Recovery of viscous petroleum such as from thick tar sands is assisted using a closed-loop flow path formed in a well by concentric casing and tubular members extending from the earth's surface through a substantial portion of the formation for conducting hot fluid to reduce the viscosity of the pet ...


5
John H Duerksen, Donald J Anderson, Doug J McCallum, Mark Petrick: Single well injection and production system. Chevron Research and Technology Company, Edward J Keeling, David J Power, July 21, 1992: US05131471 (24 worldwide citation)

A method is disclosed for fluid injection and oil production from a single wellbore which includes providing a path of communication between the injection and production zones.


6
Donald J Anderson: Method of recovering viscous petroleum employing heated subsurface perforated casing containing a movable diverter. Chevron Research Company, G W Wasson, Edward J Keeling, January 18, 1983: US04368781 (24 worldwide citation)

A method is disclosed for recovering viscous petroleum from subsurface formation, such as tar sands, wherein a substantially horizontal, perforated casing is positioned in the formation and a movable diverter is positioned to direct a hot drive fluid out through the perforations and into the formati ...


7
Donald J Anderson: Motorcycle jack. May 18, 1993: US05211376 (13 worldwide citation)

A motorcycle jack assembly comprising a wheel support frame having tire alignment members and tie down means to fix one wheel of the motorcycle in the wheel support frame, and further comprising an alignment frame attached to the wheel support frame and positioned to cause the motorcycle body to rem ...


8
Donald J Anderson, John H Duerksen, Doug J McCallum, Mark Petrick: Method of recovering hydrocarbons using single well injection/production system. Chevron Research Company, Edward J Keeling, David J Power, Robert D Touslee, June 18, 1991: US05024275 (12 worldwide citation)

Production of viscous hydrocarbons is initiated by first injecting an injection fluid down at least two tubing strings in a wellbore having multiple tubing strings therein. Following an initiation phase, flow of injection fluid in the production tubing string is ceased, and production of formation f ...


9
Donald J Anderson: Method and apparatus for recovering viscous petroleum from thick tar sand. Chevron Research Company, R L Freeland Jr, Edward J Keeling, October 17, 1978: US04120357 (10 worldwide citation)

Recovery of viscous petroleum such as from a thick tar sand formation is assisted using a closed-loop flow path formed in a production well extending from the earth's surface through a substantial portion of the formation for conducting hot fluid to reduce the viscosity of the petroleum in the forma ...


10
Donald J Anderson: Method of assisting surface lift of heated subsurface viscous petroleum. Chevron Research Company, G W Wasson, Lewis S Gruber, Edward J Keeling, November 6, 1984: US04480695 (10 worldwide citation)

A method and apparatus is described for producing viscous petroleum from a subsurface formation. The apparatus includes a generally horizontal cased well through the subsurface formation with injection and production tubings within the well. The casing is perforated and the inner tubings carry a mov ...