FIELD: chemistry.
SUBSTANCE: invention pertains to the oil-and-gas industry, and more specifically to compositions for preparing process liquids. The composition for preparing process liquids of oil and gas wells contains a source of salts in form of a flux of calcium nitrate, and at least, one component from the group: potassium chloride flux, carnallite flux, concentrate of mineral halite, with ratio of components, adding up to the following content of salt, in mass %: potassium chloride 25.0-60.0, magnesium chloride 1.0-28.0, calcium nitrate 1.0-50.0, sodium nitrate 5.0-75.0, and target additive 0.01-1.5 % of the mass of the given mixture salts. The invention is developed in subclaims.
EFFECT: wide assortment of resources due to use of wastes of inorganic production with simultaneous increase of collector properties of the bottom-hole formation zone.
6 cl, 4 tbl, 1 ex
| Title | Year | Author | Number | 
|---|---|---|---|
| WELL KILLING METHOD | 2005 | 
 | RU2277629C1 | 
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 | RU2347797C2 | 
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| METHOD FOR PREPARING PROCESS LIQUIDS OF OIL AND GAS WELLS | 2008 |  | RU2387687C2 | 
| WELL STOPPING METHOD | 2003 | 
 | RU2250360C1 | 
| METHOD FOR TEMPORARILY BLOCKING A PRODUCTIVE FORMATION UNDER CONDITIONS OF ABNORMALLY LOW FORMATION PRESSURES | 2022 | 
 | RU2788935C1 | 
| HEAVY WELL-KILLING LIQUID WITHOUT SOLID PHASE WITH A DENSITY OF UP TO 1600 kg/m | 2021 | 
 | RU2782915C1 | 
| OIL-AND-GAS WELL KILL FLUID | 2005 | 
 | RU2279462C1 | 
Authors
Dates
2008-07-20—Published
2006-12-08—Filed