How About KOSUN Drilling Mud Decanter Centrifuge ?

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.

KOSUN decanter centrifuge can meet with different requirements of mud treatment under various drilling conditions,that can do sedimentation and separation for particles more than 2 um. After treatment,the mud can achieve ideal viscosity and proportion, results in better recycling,high efficiency,saving and environment protection.

The series of centrifuge by our company has been developed many years with the continuous improvement and optimization design,which possesses the characteristics of good result of separation and settlement,as well as large quantity, reliable work, longer life, lower energy consumption, easy maintenance, smooth operation, lower noises, etc

To ensure that the effective treatment result and long service life ,the important parts adopts high quality stainless steel,forging material,strengthen heat treatment and strict control processing.And on each part that easily wear take spraying wear-resisting layer and mosaic of hard alloy etc.The overflow of the main drum mouth using adjustable poling board,it can be adjusted anytime according to different sludge treatment .

To meet the requirements of the development of modern drilling engineering, KOSUN developed and equipped with the explosion-proof variable frequency control system which could adjust separation factor and drum rotational speed.By this new technology,make the centrifuge  adapt property changing of mud during the operation process,which makes the treatment more effective and perfect.

A VFD (Variable Frequency Drive ) module monitors and control both the main and back electric drives.The operator can manage bowl and scroll speeds via a touchscreen that also displays input from the various sensors,including temperature,current,rotational speed and vibration.

As a professional manufacturer on solids control equipment, KOSUN specialize in designing & manufacturing shale shaker, mud agitator, mud gun, desander, desilter, mud cleaner, centrifuge, jet mud mixer, centrifugal pump, shearing pump, mud tank, vacuum degasser, ignition device, etc. and have been exporting to Russia, Kazakhstan, Egypt, Indonesia, Mexico, Australia, etc. with qualified products & superior service

The Drilling Mud Cleaner Advantages As A Solids Control Equipment

As one of the important solids control equipment for drilling mud system, the drilling mud cleaner, also called desander and desilter assembly, mainly consists of three parts including desander, desilter and the underflow screen. It can achieve separation of two stage with the hydrocyclone mounted over the shale shaker. Compared with the independent desander and desilter, the product has much higher working efficiency. Same as the shale shaker in function, the equipment is designed rationally with compact structure, small volume and powerful performance.

Compared with the traditional desander and desilter, mud cleaner is the upgrade product. It belongs the second or third level solids control equipment in the drilling fluid solids control systems, it is the complex of hydrocyclone desander, hydrocyclone desilter and the shale shaker.

The structure of mud cleaner include desander, desilter, pressure pump, hydrocyclone, bottom flow slot, drilling fluid shale shaker, support and base. the characteristic is there is a control butterfly valve between the main inlet tube and drainpipe of desander and desilter, on the base there is a chute, the shale shaker is located on the chute. In the swirler, there are automatic sand blocking prevention equipment and bottom flow port regulation equipment.

KOSUN MD series high effective mud cleaner is the second or third stage separation equipment of drilling liquid, which will handle the solids particle after being treated by the first grade separation equipment. The mud will be recovered and cuttings which are bigger than mud will be removed. Then the cuttings in the underflow will flow into circulation tanks through the screens when the weighted mud passes while the particles that are bigger than mesh will be removed.

There are also other solids control equipments KOSUN can manufacture,such as shale shaker, vacuum degasser,decanter centrifuge, submersible slurry pump,shear pump,centrifugal pump,mud agitator, mud gun, shale shaker screen,jet mud mixer,mud tank,etc

Drilling Mud 5 Stages Solids Control System

You may hear about the drilling mud 5 stages solids control. But what is the drilling mud 5 stages solids control ? Here , KOSUN can explain this for you.

First stage of solids control

Shale shaker is widely known as a solids control equipments used in drilling projects. It is a very basic equipment that could separate the drilling cutting more than 250 microns by fine mesh screens. During this stage, actually, the solids control and purification happens at the same time. Just as its name implies, solids control is separate the solids from the fluids, while the drilling cutting and other large size impurities being separated, the drilling mud is purified.

Second stage of solids control

A vacuum degasser could be functioned as the second stage purification equipments. During this stage, there is no solids separated from the drilling mud, just the invasive air is removed. Why must remove the air from the drilling mud? Invaded air could reduce the specific gravity of the mud and make the centrifugal pump work at low efficiency.

Third stage of solids control

After treated by vacuum degasser, drilling mud is feeded in to desander by centrifugal pump. The main parts of 1 set desander are the hydrocyclones. Desander cone could separate the solid particles with size of 45 microns.

Fourth stage of solids control

Same working principle with desander, desilter cones separate the particles of 16 microns. Desander differs desilter by the size of hydrocyclone.

Fifth stage of solids control

You will see this stage equipments in large mud system for oil & gas drilling. One or more set decanting centrifuge is the leading role in this stage. By centrifugal sedimentation principle, it delivers high fluid-recovery rates and efficient solids control to significantly reduce the costs of makeup fluids and disposal.
KOSUN has been providing a complete line of solids control equipment for the oilfield Industry and the environmental Industry for over 20 years. KOSUN can provide customers with several series as oil & gas drilling solids control equipment, centrifuges and drilling waste management equipment, etc.

Five Phases Drilling Solids Control Equipments

If you are involved in the field of oil & gas drilling, you must know drilling company often need drilling solids control equipment such as shale shaker, desander, desilter etc. to treat drilling fluid and recycle it.

Many industry insiders know the five phases drilling solids control equipments, but do you know it? Generally speaking, in proper order, they are separately shale shaker, vacuum degasser, desander, desilter, decanter centrifuge.

Shale shaker: Shale shaker is widely known as a solids control equipments used in drilling projects. It is a very basic equipment that could separate the drilling cutting more than 250 microns by fine mesh screens. During this stage, actually, the solids control and purification happens at the same time. Just as its name implies, solids control is separate the solids from the fluids, while the drilling cutting and other large size impurities being separated, the drilling mud is purified.

Vacuum Degasser: A vacuum degasser could be functioned as the second stage purification equipments. During this stage, there is no solids separated from the drilling mud, just the invasive air is removed. Why must remove the air from the drilling mud? Invaded air could reduce the specific gravity of the mud and make the centrifugal pump work at low efficiency. 

Desander: After treated by vacuum degasser, drilling mud is feeded in to desander by centrifugal pump. The main parts of 1 set desander are the hydrocyclones. Desander cone could separate the solid particles with size of 45 microns.

Desilter: Same working principle with desander, desilter cones separate the particles of 16 microns. Desander differs desilter by the size of hydrocyclone.

Decanter Centrifuge: You will see this stage equipments in large mud system for oil & gas drilling. One or more set decanting centrifuge is the leading role in this stage. By centrifugal sedimentation principle, it delivers high fluid-recovery rates and efficient solids control to significantly reduce the costs of makeup fluids and disposal.


As a China solids control company, KOSUN can provide a complete line of solids control equipment for the oilfield Industry and the environmental Industry for over 20 years. KOSUN can provide customers with several series as oil & gas drilling solids control equipment, centrifuges and drilling waste management equipment, etc.

Applications of Drilling Waste Management Equipments

The drilling waste are always harmful for environment,how to manage those waste is an important

and serious problem,there are some equipments can help us dispose of the drilling waste.

Vertical Centrifuge

In the request for improved environmental practices, operators need solutions that take liquids/solids separation to a new level. The Vertical Cutting Dryer from KOSUN incorporates a high –speed vertical dryer that achieves maximum liquids/solids separation in large-volume processing .It gives operators a critical advantage in meeting increasingly stringent environmental regulations for onshore and offshore cutting disposal.

The KOSUN Vertical Cutting Dryer returns and recycles large percentages of SBM (Synthetic Base Mud) and OBM (Oil Base Mud) to an active system which in the past was lost as waste products to the environment. KOSUN Vertical Cutting Dryer can reduce total discharged OOC below 6%, which is currently the discharge limit in many areas of the world, in many areas of the world, our goal is 5% total OBM discharge to the environment, and our goal is not only to reach 5%,but also reduce the percentage further.

Screw Conveyer

Screw conveyer, commonly known as auger. It has horizontal, inclined and combined form, and it can be used with other transport devices, to accomplish combined transport, separate transport, mixing, blending, dehydration, compounding, discharging and stacking, etc. KOSUN screw conveyer used in the drilling waste management for the drilling fluids or cuttings transportation.

Hi-G Dryer

KOSUN Hi-G shaker recovers drill fluids cuttings from water-based and oil-based drilling fluids, can make the proportion of the liquid phase in the drilling to below 10%, can significantly reduce the cost of the waste discharge, and is particularly effective in the oil base mud cuttings.

Screw Pump

The screw pump is an ideal pump to feed decanter centrifuge,the fluids flow along with the shaft ,inner flow speed is slow .capacity remains pressure is steady ,without vortex and agitating.the screw pump can also be used in the drilling waste management for wet mud and cutting transportation

KOSUN is solids control leader and drilling waste management expert in China.KOSUN solids control equipments included: Shale Shaker, Vacuum Degasser, Mud Cleaner,Desander,Desilter,Decanter Centrifuge,Shear Pump,Centrifugal Pump,Submersible Slurry Pump，Mud Agitator,Mud Gun,Jet Mud Mixer,Mud Tank, Solids Control System，etc.Security Equipment including Ignition Device and Mud/Gas Separator.

KOSUN Drilling Mud Decanter Centrifuge Is Ideal Choice Solids Control

A centrifuge is a piece of equipment, generally driven by an electric motor (some older models were spun by hand), that puts an object in rotation around a fixed axis, applying a force perpendicular to the axis. A centrifuge is also used to separate the components of blood in blood banks. The centrifuge works using the sedimentation principle, where the centripetal acceleration causes denser substances to separate out along the radial direction (the bottom of the tube). By the same token lighter objects will tend to move to the top (of the tube; in the rotating picture, move to the center).

A drilling mud decanter centrifuge works by spinning a vessel containing the material to be 

separated at high speed. It is very much like the rides at the fairground that rotate. 

You have to lean towards the center to overcome the force caused by the rotation. In fact, some rides are designed specifically to press your body against a back support. The decanter centrifuge spins at very high speeds and pushes the ‘heavy phase’, usually the solids, to the outside of the vessel, just as you would see in the clear flask standing on the bench top.

Decanter Centrifuge is the key equipment of dealing with the super fine hazardous solid phase. Decanting centrifuge can depart and recycle the solid phase larger than 5µm, recover the density of drilling fluid quickly and increase the drilling speed. Decanter centrifuge is the ideal oilfield drilling fluid purified equipment.

The drilling mud decanter centrifuge is built around a slender cylindrical bowl with a relatively large length/diameter ratio and a conical end. This bowl rotates at speeds of up to 4000 rpm (according to model), producing centrifugal force of anywhere from 300 to 3130 G. The other key components include a main drive motor, heavy-duty gearbox, back drive motor and control panel. The machine has suitability for different well drilling procedure and high process capacity. It can separate out the ultra micro harmful solid-state grains in the drilling mud. At the same time, the transporter blade in this machine is inlaid with hard alloy block that elongates its service life considerably. 

With many advantages for decanter centrifuge ,KOSUN drilling mud decanter centrifuge are ideal choice for customers in the oil drilling solids control system.Except,KOSUN supply other solids control equipments,including,shale shaker, shale shaker screen, desander, desilter,

 vacuum degasser, centrifugal pump, submersible slurry pump, shear pump,mud agitator, mud gun, drilling fluid mud cleaner, jet mud mixer, mud tank, diesel tank, water tank, complete solids control system,etc.

KOSUN Drilling Mud Cleaner Is A Practical Equipment for Drilling Mud System

A mud cleaner is a combination of desanders and/or desilters mounted over a shaker with a fine mesh screen. A mud is fed to the inlet of the hydrocyclone (desander and/or desilter) to separate particles and the underflow passes to the fine screen mesh where in particles larger than barite are discarded and thrown away. In most drilling operations, a mud cleaner is installed in its mud systems. It is usually located in a mud tank in the same location as with the desilters.

The purpose of the mud cleaner is to remove drilled solids larger than barite. Solids larger than 74-105 micrometres can be removed by the mud cleaner before the viscosity builds up. Mud cleaner can effectively control weighted drilling fluid solid content. Prevent differential pressure sticking, adhesion stuck drill accident, reduce the drill string and the filter cake thichness on bond issues.

Compared with the traditional desander and desilter, mud cleaner is the upgrade product. It belongs the second or third level solids control equipment in the drilling fluid solids control systems, it is the complex of hydrocyclone desander, hydrocyclone desilter and the shale shaker.

KOSUN MD series high effective mud cleaner is the second or third stage separation equipment of drilling liquid, which will handle the solids particle after being treated by the first grade separation equipment. The mud will be recovered and cuttings which are bigger than mud will be removed. Then the cuttings in the underflow will flow into circulation tanks through the screens when the weighted mud passes while the particles that are bigger than mesh will be removed.

Mud Cleaner is the second class and the third class solids control equipment which is the newest type to treat the drilling fluid.  At the same time Mud cleaner has the higher cleaning function compared with separated desander and desilter. In addition to the reasonable design process, it equals another shale shaker. KOSUN mud cleaner structure is compact, it occupys small space and the function is powerful. Mud cleaner is the ideal device of the second class and the third class solid control to treat the drilling mud.  

With many advantages for mud cleaner ,KOSUN shale shaker and decanter centrifuge are ideal choice for customers in the oil drilling solids control system.Except,KOSUN supply other solids control equipments,including, balanced elliptical motion shaker, shale shaker screen, desander, desilter, vacuum degasser, centrifugal pump, submersible slurry pump, shear pump,mud agitator, mud gun, drilling fluid mud cleaner, jet mud mixer, mud tank, diesel tank, water tank, complete solids control system,etc.