FIELD: oil production.
SUBSTANCE: invention relates to a method for developing an oil deposit. The method of developing an oil deposit consists of pushing water through a gas-saturated margin generated in the reservoir, created in the reservoir by alternately pumping into the reservoir through an injection well portions of aqueous solutions of sodium carbonate, hydrochloric acid, portions of buffer fresh water, separating portions of aqueous solutions of sodium carbonate and hydrochloric acid. The concentrations of aqueous solutions of sodium carbonate and hydrochloric acid are increased taking into account dilution in buffer fresh water. The total volume of injected aqueous solutions of sodium carbonate and hydrochloric acid is reduced by the total volume of portions of buffer fresh water. The number of alternately pumped portions of aqueous solutions of sodium carbonate and hydrochloric acid is provided in the range of 2-6 while maintaining the total volumes of the portions.
EFFECT: reduced losses of aqueous solutions of sodium carbonate, hydrochloric acid and generated carbon dioxide.
1 cl, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR DEVELOPMENT OF OIL DEPOSIT | 1997 |
|
RU2125154C1 |
| OIL POOL DEVELOPMENT METHOD | 2002 |
|
RU2244110C1 |
| METHOD OF DEVELOPMENT OF OIL POOL | 2001 |
|
RU2205948C1 |
| METHOD OF OIL DEPOSIT DEVELOPMENT | 2007 |
|
RU2349742C1 |
| OIL RESERVOIR DEVELOPMENT METHOD | 2004 |
|
RU2263205C1 |
| METHOD FOR DEVELOPMENT OF OIL FIELD | 1991 |
|
RU2021496C1 |
| METHOD OF SELECTIVE ISOLATION OF HIGHLY PERMEABLE ZONES OF FORMATION | 1995 |
|
RU2079648C1 |
| METHOD OF DEVELOPMENT OF OIL POOL | 2001 |
|
RU2205947C1 |
| METHOD OF DEVELOPMENT OF OIL POOL | 1999 |
|
RU2142557C1 |
| OIL POOL DEVELOPMENT METHOD | 2006 |
|
RU2308596C1 |
