May 11

Hydrocyclones, classified as desanders or desilters, are conical solids separation devices in which hydraulic energy is converted to centrifugal force.

Function for Hydrocyclones

Mud is fed by a centrifugal pump through the feed inlet tangentially into the feed chamber. The centrifugal forces thus developed multiple the settling velocity of the heavier phase material, forcing it toward the wall of the cone. The lighter particles move inward and upward in a spiralling vortex to the overflow opening at the top. The discharge at the top is the overflow or effluent; the discharge at the bottom in the underflow. The underflow should be in a fine spray with a slight suction at its centre. A rope discharge with no air suction is undesirable.

Flow Rate for Hydrocyclone

Desilters consist of a battery of 4-inch or smaller cones. Depending on the size of the cone, a particle size cut between 6 and 40 microns can be obtained. Even though hydrocyclones are effective in removing solids from a drilling fluid, their use is not recommended for fluids that contain significant amounts of weighting materials or muds that have expensive fluid phases. When hydrocyclones are used with these fluids, not only will undesirable drilled solids be removed, but also the weight material along with base fluid, which can be cost prohibitive.

 

 

Other than hydrocyclone, GN build shale shaker, desander, desilter , mud cleaner, decanter centrifuge, etc for a complete line of solids control system. Please contact GN Solids Control freely for inquiry

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