FIELD: chemistry.
SUBSTANCE: invention relates to oil extraction and can be used in acidic, alkaline and other types of treatment, for example preloading a salting inhibitor into a stratum. The mutual solvent for bottom-hole treatment of a stratum contains the following in vol. %: alcohols 5-70, esters 12-60, aliphatic ketone 10-50, nitrogen-containing compound or alkylsulfoxide - the rest. The esters are aliphatic and cyclic esters, and the alcohols are cyclic and/or aliphatic alcohols, the aliphatic alcohol is a mono and/or a polyalcohol.
EFFECT: wide range of compatibility with water and oil phases, lower salting out capacity.
4 cl, 1 ex, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| MUTUAL SOLVENT FOR BOTTOMHOLE FORMATION ZONE TREATMENT | 2019 |
|
RU2723810C1 |
| METHOD FOR PREVENTING DEPOSITS OF NON-ORGANIC SALTS | 2012 |
|
RU2484238C1 |
| THERMO- AND SALT-RESISTANT MUTUAL SOLVENT FOR COMPOSITIONS USED IN OIL EXTRACTING INDUSTRY | 2010 |
|
RU2411276C1 |
| THERMO- AND SALT-RESISTANT MUTUAL SOLVENT FOR COMPOSITIONS USED IN OIL EXTRACTING INDUSTRY | 2010 |
|
RU2411275C1 |
| METHOD OF TREATMENT OF BOTTOMHOLE FORMATION ZONE | 2002 |
|
RU2211325C1 |
| FORMULATION FOR REMOVING ASPHALTENE-TAR-PARAFFIN DEPOSITS AND HYDROPHOBIZATION OF FORMATION BOTTOM ZONE | 2005 |
|
RU2307860C2 |
| COMPOUND FOR REMOVING PETROLEUM AND PETROLEUM PRODUCTS FROM WATER SURFACE | 0 |
|
SU1730043A2 |
| COMPOSITION FOR TREATMENT OF BOTTOMHOLE FORMATION ZONE | 2002 |
|
RU2213216C1 |
| COMPOSITION FOR PREVENTING ASPHALTENE-RESIN-PARAFFIN DEPOSITS | 2019 |
|
RU2717859C1 |
| ACIDIC COMPOSITION FOR BOTTOM-HOLE TREATMENT OF OIL RESERVOIR | 2012 |
|
RU2495075C1 |
