“…The centrifuges were originally designed for separating barite (a mud weighting material used to increase mud density for drilling in high pressure formations) from the mud stream so that it could be returned to the mud system. Recently, centrifuges have been used in environmentally sensitive areas to remove the drilled solids from the mud system, essentially offering what is termed as a dry drilling system (Malachosky et al, 1991). The decanting centrifuge system .…”