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Michael W Britton, William L Martin, Jack D McDaniel, Harry A Wahl: Fracture preheat oil recovery process. Continental Oil Company, A Joe Reinert, May 5, 1981: US04265310 (79 worldwide citation)

A zone of increased heat and enhanced fluid mobility is established between an injection well and a production well vertically traversing a heavy oil (bitumen, tar) reservoir by (a) first horizontally hydraulically fracturing between the wells, and (b) then injecting hot water and/or steam into the ...


2
Richard A Harmon, Harry A Wahl: Methods for obtaining well-to-well flow communication. Conoco, July 5, 1988: US04754808 (54 worldwide citation)

A process for establishing well-to-well flow communication between a plurality of wells penetrating a subsurface formation is provided. A common fracture network is created by initiating a fracture from a first well, and then propagating that fracture from the first well to a second well. When the f ...


3
Richard A Harmon, Harry A Wahl: Methods for obtaining well-to-well flow communication. Conoco, A Joe Reinert, May 5, 1987: US04662440 (30 worldwide citation)

A process for establishing well-to-well flow communication between a plurality of wells penetrating a subsurface formation is provided. A common fracture network is created by initiating a fracture from a first well, and then propagating that fracture from the first well to a second well. When the f ...


4
William L Martin, Harry A Wahl, Gary C Young: Method for creating a permeable fragmented zone within a subterranean carbonaceous deposit for in situ coal gasification. Continental Oil Company, A Joe Reinert, August 29, 1978: US04109719 (6 worldwide citation)

A method for creating a zone of relatively high permeability within a subterranean carbonaceous deposit which includes gasifying a portion of the carbonaceous deposit to provide a cavity, placing at least one explosive device in the deposit in the vicinity of the cavity so that energy generated upon ...


5
Derry D Sparlin, Harry A Wahl: Method for reducing the production of water from oil wells. Continental Oil Company, F Lindsey Scott, February 24, 1976: US03939912 (2 worldwide citation)

A method for reducing the production of water from oil wells by injecting into the oil wells a viscous oil containing from about 0.01 to about 10 weight percent of a coupling agent in an amount sufficient to saturate the subterranean formations penetrated by the wellbore radially for distance up to ...


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