One must often select the most cost effective mud cleaning equipment given a desired particle size. Those problems are easy using 4 MUD 6 of the Guidebook (below is the relevant part):
Solid Control Equipment Order:
1. Shale Shaker: down to 75 μm particle size
Mesh ex: 70x30: 70 openings/in one direction, 30 in perpendicular
Degasser (vacuum pump) or Gas Separator (no pump)
2. Mud tank:
Mud Agitator: prevents “steeling”
Mud Gun: flushes tanks
3. Desander: down to 45 μm, Desilter down to 15 μm
…fine screens can replace desander/desilter for power savings
Mud Cleaner: parts 1-3
4. Hydrocyclone: changes flow path; solids into cones
5. Centrifuge: rotating drum; rotation speed variable
6. Additives: Chemical, Bentonite, Water
75 + μm? Shaker.
75 - 45 μm? Shaker + Desander.
45 - 15 μm? Shaker + Desander + Desilter.
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