发明名称 |
METHOD OF RESTRICTING WATER INFLOW TO WELL |
摘要 |
FIELD: oil producing industry, in particular, methods of shutoff of water inflow to oil producing wells. SUBSTANCE: method includes successive injection into well of aqueous solution of sodium silicate and 0.5-4-% solution of hydrochloric acid in highly-mineralized water with calcium chloride. In so doing, prior to injection, separating agent as light oil is injected. EFFECT: higher efficiency of method due to exclusion of premature mixing of injected reagents and provision of more reliable water barrier. 2 cl, 2 tble
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申请公布号 |
RU2121570(C1) |
申请公布日期 |
1998.11.10 |
申请号 |
RU19970109097 |
申请日期 |
1997.06.16 |
申请人 |
ZAKRYTOE AKTSIONERNOE OBSHCHESTVO "INTOJL" |
发明人 |
SHAKHVERDIEV AZIZAGA KHANBABA OGLY;PANAKHOV GEJLANI MINKHADZH OGLY;SULEJMANOV BAGIR ALEKPER OGLY;ABBASOV EHL'DAR MEKHTI OGLY;GALEEV F.KH.;CHUKCHEEV O.A. |
分类号 |
C09K8/504;E21B33/138;E21B43/32;(IPC1-7):E21B43/32 |
主分类号 |
C09K8/504 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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