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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0498496 (1990-03-26) |
우선권정보 | DE-3720330 (1987-06-19) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 20 인용 특허 : 6 |
A process for the extraction of crude oil from an underground deposit which is penetrated by at least one injection well and at least one production well is disclosed. The process comprises forcing a solution or a dispersion of a surfactant co-solvent mixture into the injection well, wherein the sur
A process for the extraction of crude oil from an underground deposit which is penetrated by at least one injection well and at least one production well, said process comprising forcing a solution or a dispersion of a surfactant co-solvent mixture into said injection well, wherein said surfactant i
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