COMPOSITION FOR EXTRACTION AND TRANSPORTATION OF PETROLEUM Russian patent published in 1996 - IPC

FIELD: oil extraction, production of oil products. SUBSTANCE: composition allows to increase oil extraction of productive stratums, secondary oil extraction by water pressure, treatment of critical zone of stratum, prevention of formation of hard surfaces ( pipe walls, pumps, borehole equipment etc) of asphaltoresin-paraphine sediments and mineral salts to decrease hydraulic resistances during transportation of high viscosity oils and water-oil emulsions through pipes, for inner borehole deemulsation and preparation for industrial oil extraction. Increase of effectiveness of its complex action and expansion of composition functions ( improvement of oil extracting capability and increase of sphere by action of critical zone of stratum is achieved by composition for extraction and transportation of oil, that incorporates nonionic surface active substance bearing 6 -13 oxiethyl groups, sodium alkansulfonate, sodium alkylbenzosulfonate, ethyl alcohol or isopropyl alcohol, water and binary mixture of anion or cation polyelectrolytes in ratio of 3 - 5.1 and ethyleneglycol or propyleneglycol. EFFECT: increased productivity.