A large percentage of the solids generated in the drilling process must be removed from the drilling mud so that the mud properties can be controlled. Solids control equipment can be used to remove a portion of the solids generated. If the equipment cannot remove a sufficient percentage of the drilled solids for mud control, then discarding of whole mud is required to achieve adequate solids removal. One way to look at solids removal effectiveness for a drilling mud/solids control system is
to determine the efficiency of removal of drilled solids by the system.
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