FIELD: chemistry.
SUBSTANCE: invention relates to oil production from pool and can be used at any stage of oil field exploitation with waterflooding, for intensifying work of oil-producing wells, levelling injectivity profile of injection wells and increasing current oil recovery of pool. Invert emulsion for processing oil pools contains, weight %: liquid hydrocarbon 10.0-25.0; emulsifying agent "ЭКС-ЭМ" 0.5-3.0; calcium chloride 0.5-3.0; caustic soda 0.02-0.2, the rest being water.
EFFECT: increase in thermo-stability, water-insulating and oil-expelling properties.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| REVERSE EMULSION FOR TREATING OIL STRATA | 2000 |
|
RU2153576C1 |
| INVERT MICROEMULSION FOR TREATING OIL BEDS | 1996 |
|
RU2110675C1 |
| INVERTED EMULSION FOR TREATMENT OF OIL FORMATION | 1999 |
|
RU2196224C2 |
| INVERT EMULSION FOR OIL RESERVOIRS TREATMENTIT'S COMPOSITION, PREPARATION AND APPLICATION METHODS | 2008 |
|
RU2381250C1 |
| COMPOSITION FOR OIL WITHDRAWAL | 2002 |
|
RU2209959C1 |
| OIL RECOVERY COMPOSITION | 2003 |
|
RU2244809C2 |
| WATER REPELLENT EMULSION FOR OIL RESERVOIRS TREATMENT | 2008 |
|
RU2379326C1 |
| MICROEMULSION COMPOSITION FOR TREATMENT OF OIL FORMATIONS | 2002 |
|
RU2213206C1 |
| OIL FORMATION TREATMENT EMULSION | 2004 |
|
RU2254459C1 |
| HYDROPHOBIC EMULSION | 2018 |
|
RU2705675C1 |
