FIELD: oil and gas production. SUBSTANCE: emulsion contains 10.0-25.0% of liquid hydrocarbon, 0.3- 5.0% of special-type emulsifier, 0.2-4.0% of calcium chloride, and water. Such emulsion can be used when developing oil deposits on any watering phase in order to intensify operation of producing wells and to increase oil recovery of formation. EFFECT: increased heat resistance of emulsion and simultaneously preserved its oil-displacement property. 1 tbl, 2 ex
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RU2333928C1 |
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RU2166988C1 |
