FIELD: chemistry.
SUBSTANCE: invention concerns composition for well insulation and water supply limitation and can be applied in insulation of space inside and between casing, sealing of casing and threaded joints, insulation of flooded layers in oil and gas wells. Composition contains, wt %: Carbamide formaldehyde resin 20.0-70.0, surfactant or surfactant mix 0.5-4.0, natural or synthetic rubber or rubber mix 0.05-50.0, polymerisation initiation agent 0.5-3.0, the rest is water.
EFFECT: enhanced insulation and elastic strain properties, resistance to aggressive formation media.
1 ex, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITION FOR INSULATION AND WATER SUPPLY LIMITATION TO WELLS | 2007 |
|
RU2348673C2 |
| METHOD OF SHUT-OFF AND RESTRAINT OF WATER PRODUCTION IN WELLS | 2007 |
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| COMPOUND FOR ISOLATION AND RESTRICTION OF WATER INFLUX TO WELLS | 2014 |
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| COMPOUND FOR CONTROL OF DEVELOPMENT OF OIL DEPOSITS (VERSIONS) | 2009 |
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RU2429270C2 |
| RESERVOIR ISOLATION METHOD | 2004 |
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RU2272892C1 |
| INSULATION METHOD OF FORMATION WATER INFLOW IN WELL AND LINING METHOD OF BOTTOM-HOLE FORMATION ZONE | 2010 |
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| METHOD OF BOTTOM-HOLE REGION LINING | 2010 |
|
RU2467156C2 |
| METHOD FOR REPAIR AND INSULATION WORKS IN WELL | 2016 |
|
RU2650001C1 |
| COMPOUND FOR SHUTOFF OF WATER INFLOWS TO OIL WELL | 1996 |
|
RU2099521C1 |
| COMPOSITION FOR ISOLATION OF INFLOWS IN WELL | 2009 |
|
RU2405803C1 |
