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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0445672 (1982-11-30) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 267 인용 특허 : 6 |
A system and method provide for preferential in situ heating of earth formations. A plurality of elongated conductive electrodes are emplaced in earth formations in respective spaced rows bounding a particular volume of the earth formations and forming a transmission line, preferably a triplate line
A system and method provide for preferential in situ heating of earth formations. A plurality of elongated conductive electrodes are emplaced in earth formations in respective spaced rows bounding a particular volume of the earth formations and forming a transmission line, preferably a triplate line, extending in the direction of the electrodes with the particular volume of the earth formations providing a dielectric medium between respective rows of electrodes. Electromagnetic energy is supplied to the transmission line at a frequency at which the spacing between respective rows is less than about twice the skin depth at the frequency of the applied energy. Reactance means are disposed along respective electrodes to provide predetermined effective transmission line characteristics to develop a predetermined heating pattern in the earth formations. The reactance means may be reactances disposed discretely between sections of respective electrodes. The reactance means may also be disposed between respective electrodes and the earth formation, as by a dielectric coating. A heating pattern may be developed to heat hydrocarbon rich deposits preferentially.
A system for preferential in situ heating of earth formations comprising: a plurality of elongated conductive electrodes emplaced in boreholes in earth formations in respective spaced rows bounding a particular volume of said earth formations and forming a transmission line extending in the directio
A system for preferential in situ heating of earth formations comprising: a plurality of elongated conductive electrodes emplaced in boreholes in earth formations in respective spaced rows bounding a particular volume of said earth formations and forming a transmission line extending in the direction of said electrodes with said particular volume of said earth formations providing a dielectric medium between respective said rows of electrodes, each electrode being in a different respective borehole, means for supplying electromagnetic energy to said transmission line at a frequency at which the spacing between respective said rows is less than about twice the skin depth at the frequency of said applied energy, and reactance means disposed along respective said electrodes to provide predetermined effective transmission line characteristics for developing a predetermined heating pattern in said earth formations.
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