Abstract
The major objectives of this study are to experimentally investigate the influences of hydrolyzed polyacrylamide (HPAM) used in oil recovery on characters of crude oil. The HPAM is SNF 3640D from SNF Floerger in French. The experiments were putting HPAM with different concentrations into crude oil, and analyzing the basal characters of crude oil. Settling experimental results showed that the content of resin and asphaltene were decrease with the increase of HPAM concentrations. The viscosity of crude oil had relation to HPAM concentrations, when the concentration of HPAM reaching 700 mg/l, the viscosity would increase about 15 percent. The forms of HPAM were observed by environment scanning electron microscope (ESEM) also changed, at first the HPAM gathered into mass, in the end the HPAM was taken off with produced water presented longer linear.
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