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As a solids control equipment of the third stage in drilling operation, desilter is used to remove solid particles of 20-44 µm in drilling liquid.
New Type Vacuum Degasser is solids control equipment for treatment of gas cut drilling liquid.
As a solids control equipment of the second stage in drilling operation, desander is used to remove harmful solid particles of 40-74µm in drilling liquid. Suspending particles can be separated from the liquid under the centrifugal acceleration, by use of working principle of centrifugal subsidence.