FIELD: oil producing industry. SUBSTANCE: method for restricting water influx into oil well includes successive injection of mixture of polyglycols into formation model. Polyglycol mixture is produced by processing glycol production wastes and ethylene oxide with ρ = 1,14 - 1,2 g/cm2 and sodium silicate with concentration of 20-30%. Mixture of polyglycols and sodium silicate is injected at their ratio of 1:1. Volume of injection amounts to 62.5-100% from the first volume. EFFECT: higher efficiency of process due to increased depth of isolating material penetration. 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR DEVELOPMENT OF NONUNIFORM PERMEABLE OIL FORMATION | 1990 |
|
RU2068082C1 |
| METHOD OF DEVELOPING DEPOSIT WITH HIGH-VISCOSITY OIL | 1995 |
|
RU2098611C1 |
| COMPOSITION FOR OIL DISPLACEMENT FROM STRATUM | 1990 |
|
RU1773100C |
| REAGENT FOR FORCING OIL FROM STRATUM | 1991 |
|
RU2034980C1 |
| OIL RESERVOIR PRODUCTION METHOD | 2008 |
|
RU2377399C2 |
| INSULATION METHOD OF FORMATION WATER INFLOW IN WELL AND LINING METHOD OF BOTTOM-HOLE FORMATION ZONE | 2010 |
|
RU2446270C1 |
| METHOD FOR DEVELOPMENT OF OIL DEPOSITS | 1997 |
|
RU2127802C1 |
| METHOD OF WORKING OF OIL DEPOSIT | 1998 |
|
RU2157451C2 |
| INSULATION METHOD OF FORMATION WATER INFLOW AND LINING METHOD OF BOTTOM-HOLE FORMATION ZONE | 2013 |
|
RU2554957C2 |
| PLASTIC COMPOSITION FOR FORMATION WATER INFLOW INSULATION IN WELL AND STABILIZING OF PRODUCING FORMATION AND METHOD OF ITS APPLICATION | 2016 |
|
RU2627786C1 |
