FIELD: oil-and-gas industry.
SUBSTANCE: invention related to bio processes in oil-and-gas industry and can be used for development of reservoirs with non-homogenous permeability and oil saturation. Oil displacement composition contains wt %: biopolymer of xantan type BJK 5-20, caustic soda 10-40, organic dissolver RKD 10-30, the rest is water.
EFFECT: reservoir water saturated part permeability decrease, increase of displacement coverage, residue oil displacement.
1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF OIL DEPOSIT DEVELOPMENT | 2009 |
|
RU2441146C2 |
| METHOD FOR OIL DISPLACEMENT BY WATERFLOODING | 2007 |
|
RU2365746C2 |
| PROCEDURE FOR CONTROL OF RESERVOIR PERMEABILITY | 2010 |
|
RU2431742C1 |
| METHOD FOR OBTAINING POLYMER-SILICATE COMPOSITION | 2011 |
|
RU2459854C1 |
| OIL FIELD DEVELOPMENT METHOD | 2007 |
|
RU2347896C1 |
| COMPOSITION FOR REGULATING PERMEABILITY OF WATER FLUSHED INTERVALS OF OIL RESERVOIR | 2007 |
|
RU2361898C1 |
| METHOD OF DEVELOPING OIL DEPOSIT | 1997 |
|
RU2132941C1 |
| METHOD OF DEVELOPING OIL DEPOSIT | 1998 |
|
RU2136869C1 |
| COMPOUND FOR OIL RECOVERY | 1996 |
|
RU2122631C1 |
| METHOD FOR WATERED NON-UNIFORM OIL RESERVOIR PERMEABILITY TREATMENT | 2005 |
|
RU2302519C2 |
