Case 1: different cutting sizes | ||||||||
Inlet axial slurry velocity, v = 1 m/s, Drillpipe rotation, N = 50 RPM and Inlet cuttings concentration = 12% (Ph. 2 = 4%, Ph. 3 = 4%, Ph. 4 = 2%, and Ph. 5 = 2%) | ||||||||
Slurry | Ph. 2 | Ph. 3 | Ph. 4 | Ph. 5 | Average cuttings size | |||
A | 1 mm | 0.85 mm | 0.75 mm | 0.65 mm | 0.8500 mm | |||
B | 0.9 mm | 0.8 mm | 0.7 mm | 0.6 mm | 0.7833 mm | |||
C | 0.95 mm | 0.75 mm | 0.65 mm | 0.5 mm | 0.7583 mm | |||
D | 0.93 mm | 0.87 mm | 0.72 mm | 0.68 mm | 0.8333 mm | |||
Case 2: Different cuttings concentration slurry A | ||||||||
Inlet axial slurry velocity, v = 3.5 m/s, Drillpipe rotation, N = 100 RPM | ||||||||
Slurry | Inlet cuttings concentration | 1 mm | 0.85 mm | 0.75 mm | 0.65 mm | Average cuttings size | ||
E | 8% | 2% | 2% | 2% | 2% | 0.8125 mm | ||
F | 10% | 1% | 2% | 3% | 4% | 0.7550 mm | ||
G | 12% | 4% | 4% | 2% | 2% | 0.8500 mm | ||
H | 14% | 3% | 4% | 3% | 4% | 0.8036 mm |