1
Peter Van Meurs, Eric P De Rouffignac, Harold J Vinegar, Michael F Lucid: Conductively heating a subterranean oil shale to create permeability and subsequently produce oil. Shell Oil Company, December 12, 1989: US04886118 (358 worldwide citation)

Shale oil is produced from a subterranean interval of oil shale, where the interval is initially substantially impermeable and contains a specified grade and thickness of oil shale. Said interval is conductively heated from borehole interiors which are kept hotter than about 600.degree. C. and are h ...


2
Anoosh I Kiamanesh: In-situ tuned microwave oil extraction process. Trask Britt & Rossa, January 21, 1992: US05082054 (357 worldwide citation)

A method of creating a protocol for oil extraction or for enhancing oil extraction from oil reservoirs. A process of devising and applying a customized electromagnetic irradiation protocol to individual reservoirs. Reservoir samples are tested to determine their content, molecular resonance frequenc ...


3
Jack Bridges, Allen Taflove, Richard Snow: Method for in situ heat processing of hydrocarbonaceous formations. IIT Research Institute, Martin Novack, February 20, 1979: US04140180 (355 worldwide citation)

The disclosure describes a technique for uniform heating of relatively large blocks of hydrocarbonaceous formations in situ using radio frequency (RF) electrical energy that is substantially confined to the volume to be heated and effects dielectric heating of the formations. An important aspect of ...


4
Bertram T Willman: Method of treating reservoirs containing very viscous crude oil or bitumen. Exxon Production Research Co, E T Wheelock, June 28, 1983: US04390067 (340 worldwide citation)

A method for treating a field containing viscous oil or bitumen for subsequent production is described. The steps central to the process are drilling a horizontal well within the oil-bearing stratum, and heating the oil in the vicinity of the horizontal well to produce a hot liquid corridor. The ope ...


5
John A Masek: Method and apparatus for improved recovery of oil from porous, subsurface deposits (targevcir oricess). Sherman and Shalloway, June 8, 1993: US05217076 (333 worldwide citation)

A method and apparatus for the improved recovery of oil from porous sub-surface deposits such as tar sands comprising mining and drilling a well with upper and lower horizontal rectangular grids extending outward into the deposit and applying steam heat or super heated crude oil vapor through the lo ...


6
Jack Bridges, Allen Taflove: Apparatus and method for in situ heat processing of hydrocarbonaceous formations. IIT Research Institute, Martin Novack, March 20, 1979: US04144935 (333 worldwide citation)

The disclosure describes a technique for uniform heating of relatively large blocks of hydrocarbonaceous formations in situ using radio frequency (RF) electrical energy that is substantially confined to the volume to be heated and effects of dielectric heating of the formations. An important aspect ...


7
William A Edelstein, Harold J Vinegar, Chia Fu Hsu, Otward M Mueller: Balanced-line RF electrode system for use in RF ground heating to recover oil from oil shale. General Electric Company, Lawrence P Zale, Marvin Snyder, August 17, 1993: US05236039 (328 worldwide citation)

An in-situ method of extracting oil from a hydrocarbon bearing layer such as oil-shale or tar sands lying beneath a surface layer comprises applying a radiofrequency excitation signal to the hydrocarbon bearing layer through a system of electrodes. The electrodes are inserted into a matrix of holes ...


8
Guggilam C Sresty, Richard H Snow, Jack E Bridges: Recovery of liquid hydrocarbons from oil shale by electromagnetic heating in situ. IIT Research Institute, Fitch Even Tabin & Flannery, December 4, 1984: US04485869 (327 worldwide citation)

A method of electromagnetic heating in situ recovers liquid hydrocarbons from an oil shale formation containing kerogen in an inorganic matrix where the formation is substantially impermeable to fluids under native conditions. A block of the oil shale formation is substantially uniformly heated in s ...


9
Calhoun G Jeambey: System for recovery of petroleum from petroleum impregnated media. April 4, 1989: US04817711 (323 worldwide citation)

Process for in situ recovery of carbonaceous values from underground petroleum impregnated media such as oil shale, under controlled radiation from a microwave distributing source adjacent the media, e.g. in a borehole, effected in the absence of air, such that the radiation is distributed at least ...


10
Kenneth J Hsu: Hydrologic cells for recovery of hydrocarbons or thermal energy from coal, oil-shale, tar-sands and oil-bearing formations. Tarim Associates for Scientific Mineral and Oil Exploration, Helfgott & Karas P C, February 9, 1999: US05868202 (318 worldwide citation)

A system for recovery of hydrocarbons or thermal energy from host-rock fotions bearing coal, oil-shale, tar-sands or oil by use of a hydrologic cell which conveys a reacting fluid under pressure to a source-aquifer, thereafter extracting thermal energy or hydrocarbons from said host-rock, moving sai ...