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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0291667 (1981-08-10) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 344 인용 특허 : 1 |
The process and apparatus for extracting the products of kerogen in situ from an oil shale body by supplying energy selectively to the kerogen by high frequency electric fields in the frequency range between 100 kilohertz and 1000 megahertz at an intensity which heats the kerogen to a temperature ra
The process and apparatus for extracting the products of kerogen in situ from an oil shale body by supplying energy selectively to the kerogen by high frequency electric fields in the frequency range between 100 kilohertz and 1000 megahertz at an intensity which heats the kerogen to a temperature range between 250°C. and 500°C. to allow pyrolysis of the kerogen prior to substantial heat transfer to the surrounding mineral portions of the oil shale. A plurality of groups of spaced radiators produce the electric fields for heating the kerogen. A dipole radiator in the subsurface formation is supplied with electromagnetic energy through a transmission line from an energy generator on the surface.
A system for producing subsurface heating of a formation comprising: a plurality of groups of predetermined spaced radiators extending through an overburden into a region to be heated; and means for supplying said radiators with electrical energy at intensities and a frequency which produce electric
A system for producing subsurface heating of a formation comprising: a plurality of groups of predetermined spaced radiators extending through an overburden into a region to be heated; and means for supplying said radiators with electrical energy at intensities and a frequency which produce electrical fields directed toward a common region in said formation which heat selected organic portions of said formation at a more rapid rate than said heat is transferred by conduction from said organic portions to predominantly inorganic portions of said formation adjacent to said organic portions.
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