| 摘要 |
oil and gas production. SUBSTANCE: composition contains, wt.%: special-type silicate-containing substance, 10-20; high-molecular water- soluble compound (carboxymethylcellulose, polyacrylamide, polyvinyl sulfate), 1.0-2.5; nonionic surfactant, 0.1-1.0; filler (alpha-cellulose) with stearic acid admixture, 1.0-5.0; and formation water, the balance. Composition is prepared by successively adding components to formation water at stirring until homogeneous mixture is obtained. EFFECT: increased insulation efficiency and preserved permeability of formation. 3 dwg, 2 tbl
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