FIELD: oil and gas production. SUBSTANCE: proposed composition contains (mass %): urea 3.5-8.8, nitride of alkali or alkaline-earth metal 8.1-20.2, acetic acid 16.1-41.0, hydroxide of alkali metal 8.6-21.6, surface active substance 0.5-1.0 and water. Hydroxide of alkali metal and acetic acid form acetate buffer solution, thus it is enable to prepare solutions having pH 4.0-6.0 and having controlled rate of saturation by gases. EFFECT: increases effectiveness of completing wells, decreases corrosion of equipment. 4 dwg, 5 tbl
Title | Year | Author | Number |
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RU2029858C1 |
FROTH-FORMING COMPOSITION FOR HOLE DEVELOPMENT | 1992 |
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FROTH-FORMING COMPOSITION FOR HOLE DEVELOPMENT | 1992 |
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FROTHING COMPOSITION FOR INCREASING OIL EXTRACTION OF STRATUM | 1992 |
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FOAM FORMING COMPOSITION FOR DEVELOPING WELLS | 1992 |
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RU2085567C1 |
FROTH-FORMING COMPOSITION FOR LIQUID REMOVAL FROM GAS HOLES | 1992 |
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FROTH-FORMING COMPOSITION FOR HOLE DEVELOPMENT | 1992 |
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SELF-GENERATING FOAMING COMPOSITION FOR STARTING WELLS | 0 |
|
SU1035201A1 |
Authors
Dates
1995-05-10—Published
1992-07-24—Filed