FIELD: oil production industry. SUBSTANCE: it can be used for increasing oil recovery due to enlarged embracing of oil bed by selective isolation of washed high-permeable zones of bed. Method can be applied to oil beds containing ions of bivalent metals in brine in amount of at least 1.2 g/l. Components of compound: sodium silicate (soluble glass), ammonium saltpeter, water. Ratio of components is as follows, mass %: sodium silicate 2.0-20.0, ammonium saltpeter 0.5-4.0, water - the balance. EFFECT: high efficiency. 1 tbl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DEVELOPING OIL DEPOSIT | 1999 |
|
RU2168618C2 |
| COMPOUND FOR STIMULATION OF OIL RECOVERY FROM FORMATION | 1993 |
|
RU2066743C1 |
| COMPOSITION FOR INCREASE OF OIL RECOVERY FROM FORMATION | 1997 |
|
RU2131971C1 |
| COMPOUND FOR WATER SHUTOFF IN WELLS AND INCREASE OF OIL RECOVERY | 1994 |
|
RU2076202C1 |
| METHOD OF DEVELOPMENT OF OIL DEPOSIT | 2016 |
|
RU2610958C1 |
| METHOD CONTROL OVER OIL DEPOSIT DEVELOPMENT | 2010 |
|
RU2467165C2 |
| METHOD FOR CONTROLLING OVER DEVELOPMENT OF OIL DEPOSIT WITH STRATA OF VARIOUS PERMEABILITY | 1992 |
|
RU2061856C1 |
| METHOD OF OIL DEPOSIT DEVELOPMENT | 2001 |
|
RU2189441C1 |
| OIL RECOVERY ENHANCING COMPOSITION AND PREPARATION METHOD THEREOF | 2009 |
|
RU2410406C1 |
| COMPOSITION FOR INCREASING OIL RECOVERY OF FORMATIONS | 2019 |
|
RU2733350C1 |
