FIELD: oil and gas production.
SUBSTANCE: invention refers to oil producing industry, particularly to methods of decreasing produced water and also it can be implemented for elimination of thief zones at well boring. The method of selective isolation of the payout reservoir of non-uniform permeability consists in successive pumping of spacer fluid in the capacity of which hydrocarbon solvent is used, i.e. diesel fuel or oil, latex and again the same spacer fluid; further they are forced through into the reservoir.
EFFECT: increased efficiency of well bottomhole zone treatment due to prolonged insulation of high permeable watered interlayers.
1 tbl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR ISOLATION OF PERMEABLY NON-UNIFORM PRODUCTIVE BED | 1998 |
|
RU2143543C1 |
| METHOD FOR SELECTIVE ISOLATION OF FLOODED INTERVALS OF BED IN WELL | 1999 |
|
RU2149255C1 |
| METHOD OF CONTROL OVER DEVELOPMENT OF NON-UNIFORM OIL RESERVOIR (VERSIONS) | 2007 |
|
RU2341650C1 |
| METHOD OF RESTORATION OF WATER-FLOODED GAS OR GAS CONDENSATE WELL AFTER HYDRAULIC FRACTURING OF FORMATION | 2019 |
|
RU2740986C1 |
| METHOD FOR HYDRAULIC FRACTURING OF BED IN CONJUNCTION WITH ISOLATION OF WATER INFLUXES IN PRODUCT WELLS WITH USE OF GEL-FORMING LIQUIDS ON HYDROCARBON AND WATER BASES | 2004 |
|
RU2256787C1 |
| TREATMENT METHOD FOR OIL FIELD HAVING NON-UNIFORM RESERVOIRS | 2004 |
|
RU2302520C2 |
| METHOD OF ISOLATING INTERACTING STRATA | 0 |
|
SU1530764A1 |
| METHOD OF DEVELOPMENT OF OIL FORMATIONS NONUNIFORM IN PERMEABILITY | 2001 |
|
RU2209955C2 |
| BACKFILL COMPOSITION FOR SELECTIVE RESTRICTION OF WATER INFLOW IN EXTRACTION WELLS | 2009 |
|
RU2391378C1 |
| SELECTIVE EMULSION COMPOSITION FOR WATER INSULATION AND ALIGNMENT OF PRODUCTION WELL INFLUX PROFILE | 2019 |
|
RU2717498C1 |
