According to the problems of high viscosity,poor liquidity and difficulties in exploitation and transportation of Henan extra-heavy oil,the research on reducing viscosity of extra-heavy oil in Henan oilfield by emulsifying was carried out. The optimized composite reducing viscosity agent F2 comprised main agent RA-1,stabilizer polyacrylamide and additive alkali at the mass ratio of 1∶0.25∶0.36. When the dosage of the F2 was 0.483% in the emulsion and the oil to water mass ratio was 7∶3,the stable O/W emulsi...
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