| 摘要 |
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 |
