Simulation Analysis of Gas Bubble Formation and Escape in Non-Newtonian Drilling Fluids

Table 5

Bubble escape time, maximum velocity, and volume for different flow behavior indexes.

Flow behavior index	Escape time (s)	Maximum velocity (m/s)	Bubble volume (mm^3)
0.2	0.28	0.97	21.98
0.4	0.31	0.72	24.33
0.6	0.38	0.28	29.83
0.8	0.62	0.25	48.67
1.0	0.89	0.10	69.87
1.2	1.28	0.097	100.51
1.4	1.76	0.092	138.02