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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0263433 (1988-10-27) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 291 인용 특허 : 2 |
The invention comprises a method and apparatus for recovering oil from so-called depleted oil fields and also from tar sands. A pressurized, heated, non-aqueous gas, such as carbon dioxide, is continuously flowed through a channel which is in heat exchange relationship with an oil-bearing matrix, th
The invention comprises a method and apparatus for recovering oil from so-called depleted oil fields and also from tar sands. A pressurized, heated, non-aqueous gas, such as carbon dioxide, is continuously flowed through a channel which is in heat exchange relationship with an oil-bearing matrix, thus reducing the viscosity and mobilizing the oil in the sensible boundary region. Mobilized oil flows to a collection reservoir from which it is then produced.
A thermal method for producing oil from a natural reservoir of oil distributed throughout an underground oil-bearing formation, comprising the steps of continually flowing a pressurized heated non-aqueous gas along and in heat exchange relationship with a sensible boundary of said reservoir so as to
A thermal method for producing oil from a natural reservoir of oil distributed throughout an underground oil-bearing formation, comprising the steps of continually flowing a pressurized heated non-aqueous gas along and in heat exchange relationship with a sensible boundary of said reservoir so as to impart sufficient heat and dissolve sufficient gas into oil-in-place which is in close proximity to said boundary of said reservoir to mobilize said oil-in-place by decreasing its viscosity; effecting flow of said mobilized oil into one or more collection reservoirs; producing said oil from said one or more collection reservoirs; and extracting at least some of the gas with reduced heat content from said formation.
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