FIELD: oil and gas industry.
SUBSTANCE: as per an oil deposit development method involving pumping of fringe of biological surface active substance bioSAS KShAS-M and hydrocarbon solvent, first, aluminosilicate composition based on 11% of hydrochloric acid solution is pumped; in addition, fringe contains oil and formation water, and isooctane as a solvent; with that, fringe contains the following, %: formation water 54-88, bioSAS KShAS-M 1-2, isooctane 1-4, and oil 10-40.
EFFECT: improving development efficiency of an oil deposit under conditions of non-homogeneous formations as to permeability at a later stage of their development under conditions of formation waters of different mineralisation.
2 ex, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| ENHANCED OIL RECOVERY METHOD | 2007 |
|
RU2347898C1 |
| METHOD OF OIL DEPOSIT DEVELOPMENT | 2007 |
|
RU2351754C1 |
| OIL DEPOSIT EXTRACTION METHOD | 2002 |
|
RU2224880C1 |
| METHOD FOR OIL FIELD DEVELOPMENT | 2006 |
|
RU2307241C1 |
| COMPOSITION FOR INTENSIFICATION OF OIL RECOVERY | 2001 |
|
RU2188935C1 |
| METHOD OF DEVELOPING OIL DEPOSIT | 1998 |
|
RU2136869C1 |
| METHOD OF OIL DEPOSIT DEVELOPMENT | 2000 |
|
RU2178069C1 |
| RESERVOIR OIL RECOVERY ENHANCEMENT METHOD | 2001 |
|
RU2266398C2 |
| METHOD FOR OIL FIELD DEVELOPMENT | 2006 |
|
RU2307240C1 |
| METHOD OF DISPLACING OIL | 1997 |
|
RU2134774C1 |
