FIELD: chemistry.
SUBSTANCE: composition for removing asphalten-resin-paraffin deposits contains, at least, one glycerine-based block copolymer of ethylenoxide and propylenoxide and a hydrocarbon solvent, which is a mixture of aromatic and aliphatic hydrocarbons, % vol.: at least, one block copolymer 0.5-5.0, aromatic hydrocarbon 30, aliphatic hydrocarbon - remainder.
EFFECT: improved efficiency of removal and decomposition of asphalten-resin-parffin deposits.
1 ex, 4 tbl
Authors
Dates
2008-05-10—Published
2006-09-11—Filed