FIELD: oil and gas industry.
SUBSTANCE: invention refers to oil and gas industry, particularly to compositions excluding drill string casing annulus and annulus blowout in wells. Composition contains, wt %: 5% water solution of polyvinyl alcohol of 18/11 grade 35-40, a water-salt suspension 60-65, at that the water-salt suspension contains wt %: 40% water solution of calcium chloride 35, sodium silicate 33, sodium chloride 16, water 16.
EFFECT: upgraded efficiency of composition for well repair.
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| INSULATION METHOD OF FORMATION WATER INFLOW AND LINING METHOD OF BOTTOM-HOLE FORMATION ZONE | 2013 |
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| METHOD OF STABILIZATION OF BOTTOM-HOLE PRODUCING FORMATION ZONES | 1999 |
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| PLUGGING MATERIAL FOR INFLOW SHUTOFF AND LIMITATION TO OIL AND GAS WELLS | 2014 |
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| METHOD FOR REPAIR AND INSULATION WORKS IN WELL | 2018 |
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| WATERPROOFING INJECTION COMPOSITION FOR THE BUILDING OBJECTS UNDERGROUND PROTECTION (OPTIONS) | 2016 |
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