FIELD: mining.
SUBSTANCE: here is disclosed composition for regulating permeability of water flushed intervals of oil reservoir, wherein drilling reagent "Брег-2" is first pumped into reservoir in solution of caustic soda, and further water solution of poly-acryl-amide - PAA in hydrocarbon solvent is pumped at following ratio of components, wt %: PAA 0.05-0.3; hydrocarbon solvent 10-20, drilling agent "Брег-2" 5-10, caustic soda 5-20, water 49.7-79.95.
EFFECT: increased withdrawal of oil from not affected zones; increased oil yield of reservoir and limited water withdrawal at place of oil deposit.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR WATERED NON-UNIFORM OIL RESERVOIR PERMEABILITY TREATMENT | 2005 |
|
RU2302519C2 |
| OIL DISPLACEMENT COMPOSITION | 2008 |
|
RU2381251C1 |
| METHOD OF OIL FIELD DEVELOPMENT | 2016 |
|
RU2648135C1 |
| OIL RESERVOIR DEVELOPMENT METHOD | 2004 |
|
RU2267602C1 |
| METHOD FOR OIL FIELD DEVELOPMENT | 2006 |
|
RU2307240C1 |
| OIL DEPOSIT EXTRACTION METHOD | 2002 |
|
RU2224880C1 |
| WATER AND OIL SATURATED RESERVOIR WATERFLOOD DEVELOPMENT METHOD | 2007 |
|
RU2347899C1 |
| COMPOUND FOR CONTROL OF FORMATION PERMEABILITY AND WATER SHUTOFF | 1998 |
|
RU2147671C1 |
| COMPOSITION FOR CONTROLLING PERMEABILITY OF NONUNIFORM FORMATION | 1997 |
|
RU2149980C1 |
| NONUNIFORM OIL DEPOSIT DEVELOPMENT CONTROL FORMULATION | 2005 |
|
RU2291891C1 |
