Wells – Processes – Electric current or electrical wave energy through earth for...
Patent
1986-05-27
1987-11-10
Novosad, Stephen J.
Wells
Processes
Electric current or electrical wave energy through earth for...
166280, 166302, 166308, E21B 4324, E21B 43267
Patent
active
047051086
ABSTRACT:
A method for extracting valuable constituents from underground hydrocarbonaceous deposits such as heavy crude tar sands and oil shale is disclosed. Initially, a stratum containing a rich deposit is hydraulically fractured to form a horizontally extending fracture plane. A conducting liquid and proppant is then injected into the fracture plane to form a conducting plane. Electrical excitations are then introduced into the stratum adjacent the conducting plate to retort the rich stratum along the conducting plane. The valuable constituents from the stratum adjacent the conducting plate are then recovered. Subsequently, the remainder of the deposit is also combustion retorted to further recover valuable constituents from the deposit. Various R.F. heating systems are also disclosed for use in the present invention.
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Mallon, Richard G., "Economics of Shale Oil Production by Radio Frequency Heating," 5-7-1980, U.S. Dept. of Energy.
Carlson, R. D. et al., "Developement of the IIT Research Institute RF Heating Process for in situ Oil Shale/Tar Sand Fuel Extraction--An Overview", Aug. 1981, 14th Oil Shale Symposium Proceedings.
Little William E.
McLendon Thomas R.
Carnahan L. E.
Dixon Harold M.
Hightower Judson R.
Kisliuk Bruce M.
Novosad Stephen J.
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