STUDY ON VISCOSITY REDUCER BY EMULSIFICATION OF VISCOUS CRUDE OIL

HFB, a viscosity reducer by emulsification of viscous crude oil having high salt con- tent, was studied and prepared. The main factors affected the viscosity reducing were discussed. The la-boratory evaluation result indicated that the HFB viscosity reducer obviously reduced the viscosity of theviscous crude oils exploited from three Tahe oil wells, and the viscosity reducing rates were higher than93％.