| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention can be used for insulation of water-supply to hole, as well as for regulation of pick-up profile of pumped water, plugging of beds, as piston for cleaning pipelines and as separator in transportation of different oil products. Gas-filled composition for insulation of water-supply to hole contains, mass %: emulsion of anion type polymer in oil - 0.15-5.0, surface-active substance SAS - 0.02-10.0, salt of poly-valent metal - 0.002-0.20, high-dispersion hydrophobic material - 0.1-3.0, sodium nitrite -0.41-8.96, ammonium chloride - 0.32-7.0, water - the remaining part. Composition additionally contains inorganic acid or mixture of sulfanic acid with ammonium fluoride or bi-fluoride, or fluoride-bi-fluoride in amount 0.1-0.2 mass % over 100%, or corrosion inhibitor in amount 0.1-1.5 mass %, or hydrocarbon in amount 5-25 mass %. ^ EFFECT: increase of thermal stability of gas-filled composition for insulation of water-supply to composition hole, increase of its oil substituting properties. ^ 4 cl, 5 tbl, 3 ex |
