FIELD: oil and gas industry.
SUBSTANCE: invention relates to oil production and can be used in acid, alkali and other types of treatment. Mutual solvent for treatment of bottomhole formation zone contains, wt%: methanol 18–30; ethyl cellosolve 22–37; neopentyl polyol or its derivative 0.5–5; acetone – the rest.
EFFECT: wide range of compatibility with water and oil phases, low salting-out capacity, high technological efficiency for removal of water block, compatibility with formation water, improved ecology.
1 cl, 3 tbl, 17 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITION FOR CALCIUM SALT PREVENTION | 2019 |
|
RU2723809C1 |
| MUTUAL SOLVENT FOR BOTTOM-HOLE TREATMENT OF STRATUM | 2008 |
|
RU2398003C1 |
| METHOD FOR PREVENTING DEPOSITS OF NON-ORGANIC SALTS | 2012 |
|
RU2484238C1 |
| COMPOSITION FOR REMOVAL OF ASPHALTENE-RESIN-PARAFFIN DEPOSITS | 2019 |
|
RU2720435C1 |
| THERMO- AND SALT-RESISTANT MUTUAL SOLVENT FOR COMPOSITIONS USED IN OIL EXTRACTING INDUSTRY | 2010 |
|
RU2411276C1 |
| COMPOSITION FOR INHIBITING FORMATION OF GAS HYDRATES | 2019 |
|
RU2723801C1 |
| THERMO- AND SALT-RESISTANT MUTUAL SOLVENT FOR COMPOSITIONS USED IN OIL EXTRACTING INDUSTRY | 2010 |
|
RU2411275C1 |
| COMPOSITION FOR PREVENTING ASPHALTENE-RESIN-PARAFFIN DEPOSITS | 2019 |
|
RU2717859C1 |
| COMPOSITION FOR ACID TREATMENT OF BOTTOM-HOLE ZONE OF LOW-PERMEABLE TERRIGENOUS BED | 2008 |
|
RU2388786C2 |
| COMPOSITION FOR OIL PRODUCTION AND METHOD FOR OIL PRODUCTION USING IT | 2021 |
|
RU2783279C1 |
