Synthesis and Performance of an Acrylamide Copolymer Containing Nano-SiO₂ as Enhanced Oil Recovery Chemical

Figure 7

(a) Effect of shear rate on viscosity; (b) shear resistance of AM/AA; (c) shear resistance of AM/AA/NSFM. The copolymers solutions (0.2 wt%) were prepared with distilled water.

(a)

(b)

(c)