Decanter centrifuge is a very important machine for oil & gas drilling solids control. Usually at least 2 sets decanter centrifuge should be used for 1 drilling rig.
The first centrifuge with middle speed acting as the fourth phase solids control equipment. It is used for recovery barite. Barite is an expensive material for drilling mud. A good barite recovery centrifuge can help to reduce drilling cost.
The second centrifuge will be used for treatment of the drilling cuttings. Usually, for OBM and SBM, it is used after vertical cuttings dryer. For WBM, after high G shaker. It is used to cover useful drilling mud from drilling cuttings.
Structure of KOSUN decanter centrifuge:
A decanter centrifuge consists of a conical, horizontal steel bowl that rotates at high speed using a double screw type conveyor. The conveyor rotates in the same direction as the outer bowl but at a slightly slower speed.
KOSUN DC series decanter centrifuge is used in separating suspension of solids phase with particle diameter（d≥2μm） for drilling mud and fluids handling. Ruggedly built for oilfield and industrial services, it is especially effective in environmentally sensitive areas. It delivers high fluid-recovery rates and efficient solids control to significantly reduce the costs of makeup fluids and disposal. The centrifuge must test the dynamic balance for smooth operation over long periods.Speed ranging from 0 to 3900 RPM, generating centrifugal forces reach up to 3000G.
Features & Benefits of KOSUN decantere centrifuge:
• Innovative design includes longer bowl for increased retention time, resulting in drier solids and finer cut points
• Big bowl Big Volume, high G force available
• Stainless steel bowl, scroll, compartment and cover resist corrosion and provide long service life.
• Tungsten carbide scroll points with wide spacing flights at tapered end create a finer layer of conveyed solids for consistent, uniform separation and maximum solids control efficiency.
• German FAG or Sweden SKF brand bearings
• Electrical Components: SIEMENS/Schneider ATEX or IEC Ex for option.
• Screw pump & centrifugal pump feeding pump option available to meet different application.
