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 (272 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 (251 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
John H Duerksen: Method for in-situ heated annulus refining process. Chevron Research and Technology Company, Edward J Keeling, David J Power, September 8, 1992: US05145003 (238 worldwide citation)

Recovery of viscous petroleum such as from tar sands is assisted using a controlled flow of hot fluid and hydrogen-generating gas in a flow path within the formation; thus a solid-wall hollow tubular member in the formation is used for conducting hot fluid to promote hydrogenation in conjunction wit ...


4
Luis F Rivas, John Reis, Mridul Kumar: Production of oil from low permeability formations by sequential steam fracturing. Chevron Research and Technology Company, Edward J Keeling, David J Power, Robert D Touslee, February 4, 1992: US05085276 (231 worldwide citation)

A production method for low permeability formations is disclosed. Short steam cycles followed by production of fluids to the surface from a single wellbore is described. The method may be practiced in sequential manner, thereby accessing multiple intervals of hydrogen containing formation. Reflashin ...


5
John H Duerksen: In-situ heated annulus refining process. Chevron Research and Technology Company, Edward J Keeling, Annette M McGarry, October 8, 1991: US05054551 (220 worldwide citation)

Recovery of viscous petroleum such as from tar sands is assisted using a controlled flow of hot fluid and hydrogen-containing gas in a flow path within the formation; thus a solid-wall hollow tubular member in the formation is used for conducting hot fluid to promote hydrogenation in conjunction wit ...


6
Luther T Porter: Advancing heated annulus steam drive. Chevron Research Company, G W Wasson, L S Gruber, Edward J Keeling, July 17, 1984: US04460044 (208 worldwide citation)

A method is disclosed for producing viscous petroleum from subsurface deposits. The method employs a vertical well and a horizontal well through the petroleum deposit. A combination of injection procedures through the horizontal and vertical well heat the viscous petroleum in the annulus around the ...


7
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 (172 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 ...


8
Stanley O Hutchison, Glenn W Anderson: Steam injection system for use in a well. Chevron Research Company, R L Freeland Jr, Edward J Keeling, July 11, 1978: US04099563 (92 worldwide citation)

A steam injection system including a steam deflector connectable into a tubing string which steam deflector provides for selectively passing steam through the tubing string to the bottom thereof or diverting steam from inside the tubing string out into the wall liner-tubing annulus and in a directio ...


9
Peter Pisio, Charles F Kirkvold: Arrangement for recovering viscous petroleum from thick tar sand. Chevron Research Company, Edward J Keeling, R L Freeland Jr, May 3, 1977: US04020901 (73 worldwide citation)

An arrangement is provided for recovering viscous oil from a tar sand formation having a large vertical dimension including a substantially vertical lined shaft extending through the tar sand formation. A first opening is formed in the lower portion of the shaft lining and at least one lateral hole ...


10
Ke Tien Liu, Tanh V Nguyen: Gas/liquid flow measurement using coriolis-based flow meters. Chevron Research Company, Edward J Keeling, David J Power, Robert D Touslee, July 9, 1991: US05029482 (64 worldwide citation)

A method of determining mass flow rate and phase distribution of gas/liquid two-phase flows is disclosed. The method uses a Coriolis-based mass flow meter. Flow streams of known mass flow rate and phase distribution are directed through the meter and correlation factors are obtained using an apparen ...



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