FIELD: oil and gas industry.
SUBSTANCE: well repair compound for oil and gas wells including urethane pre-polymer, hydrocarbon solvent and hardener comprises water-repelling urethane prepolymer as urethane pre-polymer, oxidised vegetable oil as hardener, acetone-soluble organic solvent, acetone or their mix as hydrocarbon solvent with the following mass ratio, wt %: water-repelling urethane pre-polymer 3-30, oxidised vegetable oil 5-50, the above organic solvent - remaining share at initial viscosity of the compound less than 200 cP and gel formation time within limits of 120-1500 minutes.
EFFECT: simplified repair works and improvement of repair quality.
2 ex, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITION FOR INSULATION OF WATER PRODUCTION IN GAS AND OIL WELLS | 2009 |
|
RU2401858C1 |
| INSULATION METHOD OF BRINE WATER INFLUXES IN GAS WELL | 2009 |
|
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| INSULATION COMPOSITION AND METHOD OF WELL TUBING-CASING ANNULUS PLUGGING | 2004 |
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| HYDROCARBON PRODUCTION INTENSIFICATION METHOD BY LIMITATION OF SAND PRODUCTION IN OIL AND GAS WELLS | 2014 |
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|
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| METHOD OF REDUCING SAND INGRESSES IN GAS WELLS WITH ABNORMALLY LOW FORMATION PRESSURE | 2009 |
|
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| METHOD TO PREVENT SAND APPEARANCE IN OIL AND GAS WELLS | 2005 |
|
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| METHOD OF LIMITING WATER INFLUX IN GAS WELLS WITH ABNORMALLY LOW FORMATION PRESSURE | 2017 |
|
RU2711202C2 |
| METHOD OF PROTECTION AGAINST SAND PHENOMENA IN OIL WELLS | 2009 |
|
RU2406818C1 |
| WATERPROOFING POLYMER GROUTING MORTAR FOR OIL AND GAS WELLS | 2000 |
|
RU2180391C1 |
