发明名称 WELL KILLING COMPOSITION
摘要 FIELD: oil and gas production. ^ SUBSTANCE: water-based composition that can be used for killing of well during pullout of hole and well remedial work as well as for temporary abandonment of well contains, wt %: carboxymethylcellulose3.5-4.5, sodium hydroxide1.5-2.0, copper sulfate 0.3-0.4, and methanol 4.0-16.0. ^ EFFECT: improved rheological properties of composition and increased lifetime of formed gels. ^ 1 tbl
申请公布号 RU2254454(C1) 申请公布日期 2005.06.20
申请号 RU20040105689 申请日期 2004.02.25
申请人 发明人 KOVALENKO P.V.;NURGALIEVA I.Z.;KOMAROVA N.M.
分类号 E21B43/12 主分类号 E21B43/12
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