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发明名称
Methods for recovery of oil
摘要
Methods for the recovery of oil are provided, which include selectively plugging the water-rich portions of an oil-producing formation by injecting into the formation a swelling polymer.
申请公布号
US4328864(A)
申请公布日期
1982.05.11
申请号
US19800208694
申请日期
1980.11.20
申请人
GETTY OIL COMPANY
发明人
FRIEDMAN, ROBERT H.
分类号
C09K8/508;C09K8/588;(IPC1-7):E21B33/13;E21B43/22
主分类号
C09K8/508
代理机构
代理人
主权项
地址
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