发明名称 |
METHOD OF KILLING OIL AND GAS WELLS |
摘要 |
FIELD: oil and gas production. SUBSTANCE: when killing wells, solution pumped into the well contains 0.4-0.8 wt.-% of polyacrylamide and is radialyzed by the dose 0.5 to 2.5 Mrad. Solution is forced through by column of liquid providing bottom pressure exceeding formation pressure. Before aqueous solution of radialyzed polyacrylamide is applied, demuding fluid is pumped in. The latter is forced through into formation by buffer liquid. Volume of demuding fluid is twice as large as that of buffer liquid. Volume of solution of radialyzed polyacrylamide is superior to that of demuding fluid by a factor 1.5-2.5. EFFECT: prevented pollution of productive zone of formation and reduced consumption of material. 1 tbl
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申请公布号 |
RU2111345(C1) |
申请公布日期 |
1998.05.20 |
申请号 |
RU19960103467 |
申请日期 |
1996.02.22 |
申请人 |
AKTSIONERNOE OBSHCHESTVO ZAKRYTOGO TIPA INNOVATSIO;SEVERGAZSERVIS NNAJA FA |
发明人 |
KUCHEROVSKIJ V.M.;DIMITROV I.E.;MARGULOV A.R.;RAJKEVICH A.I.;STAVKIN G.P.;SMARKUTSKIJ R.V.;GREBENNIKOV V.T.;ZARUBIN JU.A.;AKUL'SHIN A.A.;JATSKIV M.P.;KUCHEROVSKIJ V.M.;DIMITROV I.E.;MARGULOV A.R.;RAJKEVICH A.I.;STAVKIN G.P.;SMARKUTSKIJ R.V.;GREBENNIKOV V.T.;ZARUBIN JU.A.;AKUL'SHIN A.A.;JATSKIV M.P. |
分类号 |
E21B43/12;(IPC1-7):E21B43/12 |
主分类号 |
E21B43/12 |
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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