486423.fig.007a
(a)
486423.fig.007b
(b)
486423.fig.007c
(c)
486423.fig.007d
(d)
Figure 7: Effect of drill pipe rotation speed on (a) pressure loss with water as carrier fluid, (b) cuttings concentration with water as carrier fluid, (c) pressure loss with mud as carrier fluid, (d) cuttings concentration with mud as carrier fluid.