FIELD: mining; chemistry.
SUBSTANCE: invention relates to a composition for water isolation in a bottomhole formation zone with mineralized water. Composition contains oil-soluble surfactant Neonol AF9-6 and degassed oil with viscosity of not more than 50.0 mPa⋅s. Ratio of components: Neonol AF9-6 – 1.0–30.0 wt.%; degassed oil with viscosity of not more than 50.0 mPa⋅s – balance up to 100 wt.%.
EFFECT: reduced permeability of water-conducting channels and interlayers of depleted oil deposits due to intensification of flow-diverting and water-insulating properties of the composition.
1 cl, 4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF TREATING NON-UNIFORM PERMEABILITY OIL FORMATION | 2023 |
|
RU2832923C1 |
| METHOD FOR SELECTIVE CONTROL OF PERMEABILITY OF HETEROGENEOUS FORMATION | 2024 |
|
RU2836798C1 |
| METHOD OF ACTION ON FACE ZONE OF OIL POOL OR ON OIL POOL | 1997 |
|
RU2120030C1 |
| COMPOUND FOR LIMITATION OF BRINE WATER INFLOW | 1996 |
|
RU2109939C1 |
| METHOD FOR DEVELOPMENT OF OIL RESERVOIR HETEROGENEOUS IN PERMEABILITY | 2020 |
|
RU2748198C1 |
| METHOD OF EXTRACTING OIL FROM AN OIL FORMATION USING NANOPARTICLES | 2023 |
|
RU2818628C1 |
| COMPOSITION OF SURFACTANTS FOR INCREASED OIL RECOVERY | 2021 |
|
RU2782550C1 |
| METHOD FOR ISOLATION OF BRINE WATER INFLOW | 1996 |
|
RU2101486C1 |
| COMPOSITION FOR ENHANCED OIL RECOVERY AND METHOD OF ITS USE | 2022 |
|
RU2800175C1 |
| COMPOSITION FOR ISOLATION OF LOST CIRCULATION ZONES AND SHUTOFF OF FORMATION WATER INFLOWS TO WELL AND METHOD OF COMPOSITION PREPARATION | 1999 |
|
RU2177539C2 |
