FIELD: oil and gas production.
SUBSTANCE: invention is intended for use during killing wells to perform underground and major repairs under abnormal conditions, including high formation permeability conditions in operated producing formation. Blocking system according to invention contains ionizing emission-treated polyacrylamide and water, wherein said polyacrylamide is composed of polyacrylamide treated with ionizing emission in dose 2.7-10 Mrad (5.0-70.0% of the weight of total system) and polyacrylamide treated with ionizing emission in dose 0.04-0.95 Mrad (10.0-65.0%) and wherein said system additionally contains filler (0.1-10.0%, dispersed chalk or wood flour).
EFFECT: increased reliability and efficiency of killing gas and oil wells in strata with high permeability of reservoir.
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| Title | Year | Author | Number |
|---|---|---|---|
| OIL AND GAS WELL KILLING METHOD | 2005 |
|
RU2285786C1 |
| WELL KILLING LIQUID | 2005 |
|
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| METHOD FOR HIGH-TEMPERATURE OIL DEPOSIT DEVELOPMENT | 2005 |
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| THICKENING AGENT OF INSULATING COMPOUNDS IN WELL DRILLING AND OPERATION | 1993 |
|
RU2069256C1 |
| OIL PRODUCTION INCREASE METHOD | 2014 |
|
RU2558565C1 |
| METHOD TO INCREASE OIL PRODUCTION | 2016 |
|
RU2656654C2 |
