METHOD OF TRANSPORTATION OF VISCOUS OILS AND OIL PRODUCTS WITH HIGH CONTENT OF ASPHALT-RESINOUS SUBSTANCES OVER PIPE- LINE Russian patent published in 2003 - IPC

FIELD: pipe-line transport of oil. SUBSTANCE: method of transportation of high-viscosity oils includes injection into oil of block copolymer based on glycols of general formula H(C₂H₄O)_n(C₃H₆O)_mOAO(C₃H₆O)_m(C₂H₄O)_nH,, where A = -C₂H₄- or -C₃H₆-, n=14-16, m=24-27 with molecular weight 4300 arbitrary units in mixture with polyalkylbenzene resin-by-product of production of isopropylbenzene in ratio of block copolymer to polyalkylbenzene resin 1: 1-4. Ethylbenzene or butylbenzene of isopropylbenzene fractions can by used in the capacity of solvent. Method is efficient for trasportation over pipe-line of viscous oils and oil products with content of water from 0 to 3% and increased content of asphalt-resinous substances thanks to reduced viscosity of transported products. EFFECT: raised efficiency of method. 2 cl, 2 dwg, 7 tbl