| 摘要 |
FIELD: oil and gas production industry. ^ SUBSTANCE: invention is related to the area of oil production and pipeline transportation of oil and petroleum products. Composition to stimulate process flows of oil recovery, improve oil recovery of pay beds and reduce flow frictions of oil transportation contains, wt %: nonionic surfactant 2-20, polyelectrolyte - demulsifier 1-17, nitrogenated block copolymer of ethylene oxide and propylene oxide on the basis of ethylenediamine 5-25, alkyl phosphate 1-5, chelating agent 0.5-2.0, trialkylammoniomethan-sulfonate 0.5-5.0, natrium alkylbenzenesulfonate 10-20, ammonium salts of low-molecular carboxylic acids C2-C5 1-5.0, natrium alkane sulfonate - other. At that is can additionally contain, wt %: aliphatic alcohol of the C1-C3 group 10-30 and ethyleneglycol or propylene-glycol 10-20. ^ EFFECT: enhanced efficiency of combined effect of the composition in process operations of oil recovery with application of physical fields, enhanced functions under reservoir conditions, improved reservoir properties, enhanced coverage of formation by effect. ^ 2 cl, 2 tbl |
