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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0344569 (1982-02-01) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 3 인용 특허 : 4 |
Waterflooding process for the recovery of oil from a subterranean formation in which at least a portion of the injected water is thickened by the addition of a mixture of sulfonated polyethoxylated aliphatic alcohol surfactants. The thickened water has a salinity within the range of 5-18 percent. Th
In a method for the recovery of oil from a subterranean oil reservoir having a temperature of at least 90°F. and penetrated by spaced injection and production systems wherein an aqueous fluid is introduced into said reservoir via said injection system to displace oil to said production system, the i
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