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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0588124 (1975-06-18) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 274 인용 특허 : 0 |
A method for the recovery of low API gravity viscous oils or bitumen from a subterranean formation by the injection of a mixture of an oxygen-containing gas and steam having an optimum gas/steam ratio that is decreased as the cumulative amount of steam is increased.
In a method for the recovery of viscous hydrocarbons from a subterranean hydrocarbon-bearing formation, traversed by at least one injection well and at least one production well, and having fluid communication therebetween, wherein a mixture of an oxygen-containing gas and steam is injected via said
In a method for the recovery of viscous hydrocarbons from a subterranean hydrocarbon-bearing formation, traversed by at least one injection well and at least one production well, and having fluid communication therebetween, wherein a mixture of an oxygen-containing gas and steam is injected via said injection well and hydrocarbons are produced via said production well, said mixture being injected at a temperature corresponding to the saturation temperature for saturated steam at the pressure of said formation whereby a low temperature oxidation is established in said formation, the improvement comprising decreasing the relative concentration of oxygen-containing gas in said mixture during the injection of said mixture.
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