发明名称 |
PROCESS OF ISOLATION OF WATER INFLOW IN OIL WELL |
摘要 |
oil production. SUBSTANCE: process is related to methods limiting water inflow in oil well by formation of water insulation screens in highly penetrable water-saturated intervals of carbonate pool. Process of isolation of water inflow in oil well refers to injection of aqueous solution of polyacrylamide with cross-linking agent - salt of trivalent chromium. Liquid hydrocarbon is injected into pool prior to pumping of solution of polyacrylamide with cross-linking agent - salt of trivalent chromium and after pumping of solution clayey suspension and solution of polyacrylamide with salt of trivalent chromium are injected. EFFECT: isolation of highly penetrable water- saturated interval of carbonate pool with potential for long-term insulation effect. 1 tbl
|
申请公布号 |
RU2186939(C2) |
申请公布日期 |
2002.08.10 |
申请号 |
RU20000119843 |
申请日期 |
2000.07.24 |
申请人 |
NASIBULLIN ILGIZ MINGARIFOVICH |
发明人 |
NASIBULLIN I.M.;JUNUSOV SH.M.;KASIMOV R.S. |
分类号 |
E21B33/138;C09K8/508;E21B43/32;(IPC1-7):E21B33/138 |
主分类号 |
E21B33/138 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|