FIELD: oil, gas and coke-chemical industries.
SUBSTANCE: invention relates to chemical and oil and gas industry, to process fluids, in particular, to well killing fluids. Liquid contains 0.2–70.0 wt. % of inorganic salts or their mixtures, 0.01–20.0 wt. % of disperse phase, 0.2–25.0 wt. % of polymer composition and dispersion medium are rest. Polymer composition used is a composition MHK-406, and the dispersion medium is water and/or a hydrocarbon-containing reagent.
EFFECT: technical result is the elimination of loss of liquid in the formation due to the washing of the filter cake on the surface of the reservoir, preservation of reservoir properties of the formation.
1 cl, 16 ex, 4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| WELL KILLING FLUID | 2016 |
|
RU2617661C1 |
| MULTIFUNCTIONAL ACID COMPOSITION FOR TREATMENT OF BOTTOMHOLE FORMATION ZONE AND METHOD OF ACID TREATMENT FOR BOTTOMHOLE FORMATION ZONE | 2014 |
|
RU2572401C2 |
| HYDROPHOBIC MICELLAR ACID-BASED COMPOUND FOR KILLING, DEVELOPMENT AND COMPLETION OF PRODUCING STRATA DRILLED WITH USE OF NON-AQUEOUS BASED MUDS | 2014 |
|
RU2540742C1 |
| METHOD OF WELL KILLING AND VISCO-ELASTIC COMPOSITION FOR ITS REALISATION | 2014 |
|
RU2575384C1 |
| METHOD OF PREPARING WELLS TO CEMENTATION | 1999 |
|
RU2137906C1 |
| METHOD FOR PROCESSING BOTTOMHOLE FORMATION ZONE | 2014 |
|
RU2583104C1 |
| METHOD OF DAMPING OIL AND GAS WELLS WITH HIGHLY PERMEABLE FRACTURES OF THE HYDRAULIC FRACTURING (VARIANTS) | 2017 |
|
RU2662720C1 |
| METHOD OF TREATING BOTTOM ZONE OF NONUNIFORM OIL BED | 1994 |
|
RU2065951C1 |
| METHOD OF DAMPING OIL AND GAS WELLS IN COMPLICATED CONDITIONS (OPTIONS) | 2017 |
|
RU2662721C1 |
| METHOD FOR TEMPORARILY BLOCKING A PRODUCTIVE FORMATION UNDER CONDITIONS OF ABNORMALLY LOW FORMATION PRESSURES | 2022 |
|
RU2788935C1 |
