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Decanter centrifuge http://www.kosun.us/solids-control-equipment/decanter-centrifuge.html is one of the equipment in solids control system on oil field. There used to be 3 overload safety protection on KOSUN DC Series centrifuge. One is the safety protection device of the gear box, second is the hydraulic coupler overload protection, third is the control panel with over currency protection. Nowadays as we change the drilling centrifuge structure there are 2 protections.

Drilling waste management http://www.kosun.us/drilling-waste-management/ is to treat and recover the solids generated during drilling and finally meet environment protection and discharge standards in countries and regions locally. It can meet the requirement of unlanding treatment of drilling mud, effectively prevent environmental pollution, save drilling mud and reduce drilling cost. At present, there are many drilling waste management methods and devices with different treatment effects.

The purpose of the decanter centrifuge http://www.kosun.us/solids-control-equipment/decanter-centrifuge.html as applied to a weighted water-base drilling mud is to control viscosity. This is accomplished by concentrating the colloidal-size and clay-size solids fraction into the effluent (liquid) steam and disposing of this phase. The economic justification of using the centrifuge on this type of system is the simultaneous return of weight material. Using a centrifuge on weighted water-based muds eliminates the expense of throwing away (jetting) whole mud to control viscosity.

Decanter centrifuge http://www.kosun.us/solids-control-equipment/decanter-centrifuge.html is widely used in drilling mud separation to separate smaller solid particles after the equipment processing such as drilling mud shale shaker and drilling fluids mud cleaner or desander and desilter. Usually, decanter centrifuge is equipped with screw pumps or slurry pumps to feed drilling mud to the centrifuge. Correct and proper operation and good condition make sure that drilling mud decanter centrifuge operate ordinarily with high performance.

A decanter centrifuge operates on the principle of accelerated settling. Particles will settle in a viscous media according to stoke’s low, which in simple form is written as follows:

If a sphere settles in a liquid of known density and viscosity, and the settling rate is measured, then by stokes low the density of the ball or sphere can be calculated if the diameter is known. Or. The diameter can be calculated assuming the density is known.

Principles of the decanting centrifuge:

Drilling waste management and cuttings disposal have become a critical issue for any drilling operations because of stringent effluent limitations on the discharge of contaminated drill cuttings to the environment. The wastes discarded by the drilling mud circulation system must be disposed in safe way to the environment.

Among the drilling industry, drilling fluids and mud are a considerable potential hazard to the sensitive ecosystem when contaminated. Decanter centrifuge is used to treat contaminated fluids and mud for purified and unpolluted water to be discharged into the environment. KOSUN is a sophisticated decanter centrifuge manufacturer to make this proper sustainable progress.

KOSUN DC series oilfield drilling fluids decanter centrifuge is employed in lubricant system for separating suspension of solids section with particle diameter（d≥2μm）for lubricant circulation and drilling fluids exercise. Ruggedly engineered for oilfield and industrial services, drilling mud centrifuge is particularly effective in environmentally sensitive areas.

Decanter centrifuge is the 4th phase cleaning equipment in a complete solids control system to separate fine solids. It is the most high technology products among all solids control equipments.

Decanter Centrifuge Working Principle

Drilling centrifuge is used as the 4th phase solids control equipment after shaker, desander and desilter. The centrifuge suck the mud from the compartment receiving the discharge from the desilters and mud cleaners, and the returned stream is directed to the next compartment downstream.
The use of decanter centrifuge with the drilling mud is
(1) removal fine solids from unweighted fluids