FIELD: oil-and-gas industry.
SUBSTANCE: proposed invert solution comprises the following components in wt %: "ВМГ3" hydraulic mineral oil as solvent - 32.0-63.0; organophilic bentonite for creation of solution structure - 0.8-3.2; microtiff - 3.9-8.0; Rhodopol 23 for adjustment of rheological and filtration properties - 0.2-0.8; emulsifier "ЭКС-ЭМ" - 2.3; 10% water solution of calcium chloride as emulsion stabiliser and inhibitor of shape hydration - 15.3-16.0; quicklime - 1.7, foam killer "МАСС-200" - 0.5-0.8, and heavy spar - 7.5-40.0.
EFFECT: high heat resistance at low chemical aggression against ambient medium and, in fact, almost zero filtration of water phase.
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