FIELD: oil industry.
SUBSTANCE: group of inventions relates to the completion and repair of oil and gas wells. Composition for the preparation of heavy process fluid with a density from 1.32 g/cm3 to 1.62 g/cm3 at 20°C for well killing contains, wt.%: calcium-ammonium nitrate 66.1-73.0; calcium chloride 24.8-32.0; corrosion inhibitor 1.4-2.2.
EFFECT: ensuring the low corrosion rates, low freezing temperatures of heavy process fluids, cryostability, the use of heavy process fluids in a wide range of reservoir pressures, including under conditions of abnormally high reservoir pressures and in the low temperatures of the Far North, safety and ease of preparation.
20 cl, 4 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| HEAVY PROCESS FLUID, COMPOSITION AND METHOD FOR ITS PREPARATION, METHOD OF WELL KILLING WITH HEAVY PROCESS FLUID | 2023 |
|
RU2817459C1 |
| HEAVY PROCESS FLUID BASED ON CHLORIDES, COMPOSITION AND METHOD FOR ITS PREPARATION, METHOD FOR KILLING WELLS WITH HEAVY PROCESS FLUID | 2022 |
|
RU2802773C1 |
| COMPOSITION FOR PREPARATION OF HEAVY PROCESS FLUID FOR WELL KILLING | 2019 |
|
RU2737597C1 |
| HEAVY PROCESS FLUID FOR KILLING WELLS, COMPOSITION AND METHOD FOR PREPARATION THEREOF | 2019 |
|
RU2731965C1 |
| COMPOSITION FOR PREPARING HEAVY PROCESS LIQUIDS FOR FINISHING AND REPAIRING OIL AND GAS WELLS | 2009 |
|
RU2406745C1 |
| HEAVY KILLING FLUID WITHOUT SOLID PHASE WITH DENSITY OF UP TO 2,100 kg/m | 2023 |
|
RU2830850C1 |
| METHOD FOR PREPARING PROCESS LIQUIDS OF OIL AND GAS WELLS | 2008 |
|
RU2387687C2 |
| HEAVY WELL-KILLING LIQUID WITHOUT SOLID PHASE WITH A DENSITY OF UP TO 1600 kg/m | 2021 |
|
RU2782915C1 |
| PROCESS FLUID FOR PERFORATING AND KILLING OF OIL WELLS | 2009 |
|
RU2401857C1 |
| BASE FOR CALCIUM-FREE WELL-KILLING FLUID | 2011 |
|
RU2470060C1 |
