COMPOSITION FOR REMOVING ASPHALTENE-RESIN-PARAFFIN DEPOSITS Russian patent published in 2017 - IPC C09K8/524 

FIELD: chemistry.

SUBSTANCE: invention relates to a composition used in the oil and oil producing industry and designed to remove and prevent asphaltene-resin-paraffin deposits (ARPD). Composition for removing ARPD comprises the following in wt %: surface-active substance - ethoxylated monoalkyl phenol based on propylene trimer of formula RC₆H₄(OC₂H₄)_mOH, where m is equal to 6-10, R is C₉H₁₉, 0.2-2, aromatic solvent - 15.0-78.0, aliphatic solvent 14.0-84.0, mono (2-hydroxyethyl) ammonium 2-ethylhexylalkanephosphonate of formula C_nH_2n+1PO (OC₈H₁₇) OHNH₂CH₂CH₂OH, where n equals 8-10, 0.2-3.2 and the mixture of polyoxyethylated esters of synthetic fatty acid monoethanolamides of formula R₁CONHCH₂CH₂O (C₂H₄O_{) q}H, where q is equal to 5-6, R₁ is C₁₀-C₁₆, 0.4-4.8.

EFFECT: increased efficiency of removal and prevention of asphaltene-resin-paraffin deposits at the same time.

11 ex, 2 tbl