FIELD: chemistry.
SUBSTANCE: invention relates to oil and gas industry. The composition for regulating permeability of an inhomogeneous oil formation in form of an aqueous suspension of metal salts contains the following, g/l: calcium carbonate 90-140, calcium hydroxide 10-150, magnesium hydroxide 5-10.5, calcium sulphate 16-40.6, sodium chloride 8-300, sodium hydroxide 9-14.2, calcium chloride 12.0-14.0, sodium sulphate 11.0-22.0, silicon dioxide 9.0-12.0, calcium oxide 1.4-7.4, sodium carbonate 2.5-15.0, sodium bicarbonate 3.0-29.0, magnesium carbonate 2.0-44.0, admixtures and water - the rest. The invention is developed in subclaims.
EFFECT: high efficiency of insulating washed out waterlogged collector zones, high well flow rate with possibility of using wastes and cheap intermediate products from soda production.
2 cl, 2 ex, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR CONTROL OF HETEROGENEOUS OIL BED PERMEABILITY | 2007 |
|
RU2365745C2 |
| PERMEABILITY CONTROL METHOD FOR NON-UNIFORM OIL RESERVOIR | 2004 |
|
RU2272901C1 |
| METHOD OF CONTROL OF NONUNIFORM OIL FORMATION PERMEABILITY | 2002 |
|
RU2212529C1 |
| COMPLEX ADDITIVE AGENT TO CONCRETE MIXTURE | 2008 |
|
RU2359933C1 |
| PROCESS OF PRODUCING H-PURITY LITHIUM CARBONATE FROM LITHIUM-BEARING CHLORIDE BRINES | 2004 |
|
RU2283283C1 |
| METHOD FOR OBTAINING MAGNESIUM OXIDE FROM NATURAL BRINES AND SIMULTANEOUSLY EXTRACTED WATERS OF OIL FIELDS | 2021 |
|
RU2777082C1 |
| FLOWING WELL KILLING METHOD | 2004 |
|
RU2275497C2 |
| CALCIFICATION METHOD OF PRODUCING LITHIUM CARBONATE FROM LITHIUM-BEARING MATERIAL | 2013 |
|
RU2560359C2 |
| METHOD FOR DEVELOPMENT OF FLOODED OIL DEPOSIT NON-UNIFORM IN GEOLOGICAL STRUCTURE | 1997 |
|
RU2115801C1 |
| METHOD OF RECOVERING MAGNESIUM OXIDE FROM NATURAL BRINES | 2001 |
|
RU2211803C2 |
