发明名称 |
METHOD OF MICROBIAL ENHANCED OIL RECOVERY |
摘要 |
A method of microbial enhanced oil recovery for recovering oil from an oil-bearing rock formation (13). The method comprises: injecting water containing a source of vitamins, phosphates and an electron acceptor such as nitrate into the formation at first location (10) and allowing anaerobic bacteria, which are either already present in the formation (13) or which are introduced simultaneously to multiply using the oil as their main carbon source. This establishes a biomass layer (16) which acts to dissociate the oil from the rock formation (13). The dissociated oil is removed via an outlet (15).
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申请公布号 |
WO0133040(A1) |
申请公布日期 |
2001.05.10 |
申请号 |
WO2000GB04239 |
申请日期 |
2000.11.03 |
申请人 |
DEN NORSKE STATS OLJESELSKAP A.S;REES, DAVID, CHRISTOPHER;SUNDE, EGIL;TORSVIK, TERJE |
发明人 |
SUNDE, EGIL;TORSVIK, TERJE |
分类号 |
C09K8/90;E21B43/20;(IPC1-7):E21B43/16;E21B43/25 |
主分类号 |
C09K8/90 |
代理机构 |
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