The centrifugal force separation principle of drilling fluid for the drilling industry.
The liquid-solid separation process of the liquid and solids parts is done by the roller of the bowl. The proven theory of separation by driven of bowl in high speed rotating cycle that creates centrifugal force and gravity. The drilling mud is thrown to the cylinder wall to form a circle of liquid, solid particles in the liquid ring due to greater than gravity centrifugal force in hundreds and thousands of times. It’s overcome the mud viscosity resistance rapid subsidence to the drum wall and begins forming solid layer, the liquid formed liquid layer. The ratio of the centrifugal force and the self gravity of the solid particles in the liquid ring is the detail that separation factor of the drilling fluid centrifuge, and the separation factor of the large drilling fluid centrifuge can separate the finer particles from the slurry.
Different bowl speed creates different purpose of recovery. A low speed drilling fluid centrifuge use as “barite recovery drilling fluid centrifuge”. The separation factor is about 500 to 700, for low density solid, the separation point for 6 ~ 10 um, for high density solid, separation point 4 ~ 7 um.
Mid-range rotate bowl drilling centrifuged separation factors for about 800, separable solid 5 um, for removing the harmful solid mud, mud density and viscosity control. This is at present the largest rig drilling fluid centrifuge.
High speed drilling fluid centrifuge factor is about 1200~2100, separation point 2 to 5 u m, for the removal of harmful solid and control the viscosity of the slurry, high speed drilling fluid centrifuge separation of solids to be discharged out of the tank and liquid return in the circulatory system.
GN Solids America’s GNLW series drilling fluid centrifuge needs details is a post from: Drilling Mud Decanter Centrifuge
