Oilfield centrifuge decanter for drilling waste drying method and apparatus

A process for liquid phase-solids phase recovery of drilling mud, comprising

• conveying the drilling mud as a slurry through a primary feed tube into a horizontal decanter centrifuge having a secondary feed tube and a bowl section containing a beach section, and separate the slurry into a liquids phase containing less solids phase and a solids phase containing less liquids phase,
• adding a sacrificial fluid through the secondary feed tube causing the sacrificial fluid to first contact the solids phase containing less liquids phase along the beach section of the bowl section causing the sacrificial fluid to permeate the solids phase and displace the liquid phase of the drilling mud, and ejecting the solids phase from the decanter centrifuge,
• resulting in enhanced separation and recovery of the drilling mud from the solid phase of the drilling mud prior to ejecting the solids phase from the decanter centrifuge.