Numerical Simulation of Barite Sag in Pipe and Annular Flow

Figure 15

Visualization of barite particle distribution at low annular velocity and rotating drill pipe for a horizontal concentric annular section, that is, = 0.1524 m/s, = 50 rpm. On the right are sectional views as viewed from the inlet, (a) = 12 s, (b) = 24 s.

(a)

(b)