COMPOSITION FOR REMOVING ASPHALTENE-RESIN-PARAFFIN DEPOSITS Russian patent published in 2013 - IPC C09K8/524 

FIELD: chemistry.

SUBSTANCE: invention relates to oil industry and can be used in removing asphaltene-resin-paraffin deposits (ARPD) during oil extraction. The composition for removing ARPD, which contains a non-aromatic hydrocarbon solvent; an additive - oxyethylated alkylphenol with 9-12 oxyethyl groups or alkylbenzene sulphonate, an organic amine with general formula R-R'-NH, where R, R'=CH₃, C₂H₅ C₃H₇, or mixtures thereof in weight ratio from 1:1:10 to 10:5:1; organosulphur compounds - a mixture of oil and gas refining by-products - dialkyl disulphides of a complex composition having general formula R-S-S-R', where R, R'=CH₃, C₂H₅, C₃H₇, C₄H₉, with the following ratio of components, wt %: said organosulphur compounds 10-50; said additive 0.01-0.9; said solvent - the balance.

EFFECT: efficient removal of ARPD of a different hydrocarbon composition with high content of paraffin wax and asphaltene-resin substances.

3 tbl, 5 ex, 1 dwg