There are many brand of Centrifuge manufacturers from all over the world. America brand like MI-Swaco, Derrick solids control, NOV brandt centrifuge; Germany brand like Alfa Laval high speed centrifuge, GEA Centrifuge; Iran brand like Scomi centrifuge, China brand like GN Solids Control, GN Solids America and GN Solids Russia.


How to choose drilling mud centrifuge, generally depends on two points. One is the budget and the other one is project. But it is depend on the budget finally.  If the reader budget is limitless, you can buy American or Germany brand to get the best quality equipment. If the reader budget is limited and want to do the solids control service project or drilling waste management service project, you can come to China and get the proper equipment. Here, we would like to introduce you leading manufacturer from China: GN Solids Control.


GN Solids Control is professional drilling mud centrifuge manufacturer with over 150 sets centrifuge sales amount for one year.  With good quality equipment, reasonable price and timely after sales service, GN Solids Control is becoming more and more popular in drilling field. ( oil & gas drilling, mining drilling, diamond drilling, Horizontal directional drilling, piling drilling etc.)


One centrifuge model GNLW363CG is the most hot equipment for use. This centrifuge model is replacement for Derrick DE1000, Swaco 518 and NOV brand HS3400. With similar treating capacity, similar treating result and treating speed, more and more customer stop renting from America solids control service company, and come to GN Solids Control centrifuge.


Big project of GN Solids Control centrifuge for overseas market.


  • We have over 40 sets centrifuge working in Africa, including Nigeria, Ghana, Algeria, Egypt, Libya, South Afria, Gabon, Congo etc. The stable performance and good price win more customers for us.
  • We have over 20 sets centrifuge working in South America, including Brazil, Argentina, Chile, etc. We have Argentina jobsite video from GN Solids Site.
  • We have over 30 sets centrifuge working in Middle East, including Iran, UAE, Iraq, Oman, Kuwait. We also sell over 10000pcs shaker screen to this market.
  • We have over 20 sets compact mud system working in Australia, mainly for Horizontal directional drilling. And many mud system is equipped with GN centrifuge.


Recently GN shipped 6 sets of decanter centrifuges and 3 sets of vertical cuttings dryer packages for Africa drilling companies. This is a repeat order for this client who ever bought 4 sets of decanter centrifuges in Feb., 2014 and get good performance in their rig site, so they repeat order 1 year later. Together with these drilling waste management equipments, the client also bought a complete liquid mud plant with 7 mud tanks.

GN solids control sold over 200 units of decanter centrifuge in 2014 for drilling application and drilling waste management both in the liquid mud plant and rig site. The most important reason for the repeat orders from our clients are:

1 competitive price

2 good performance in the jobsite: most of our clients sent us PO after they checked our other client’s rig site. Good perfromance and liable quality is the most important point for them to make a decision.

3 Longer service life material: GN unique designed decanter centrifuge can last longer during operation, because we use better material, for example, the protection of the screw is tungsten carbide tiles, not the traditional way-only spread welding the tungsten alloy on the surface. The SKF bearing can ensure the reliable quality.

4 Fast after sales service: We will provide immediate after-sales service for any trouble shooting. And our professional enginners will fly to your jobsite for first time installation and commissioning.

The vertical cuttings dryer is installed on the special designed frame with flushing pump installed on the skid. You can adjust the height for operation and trasportation.

The decanter centrifuge can be installed on the mud tank or liquid mud plant, it can also be installed on the frame when it is used for drilling waste management application. GN solids control provide customized design for suce frame, and we have our standard frame for option.

We will show the vertical cuttings dryer and decanter centrifuge package in CIPPE 2015 oil show in Beijing and OTC 2015 oil show in Houston, welcome to visit our stand.

Related Arciels:


There are hundreds of famous oil company  throughout the wide, government owned or non-government. Belong list is for some of the most famous oil companies.

1) ExxonMobil

ExxonMobil is the world’s largest non-governmental oil and gas producer and the world’s largest non-governmental natural gas distributor; and also is one of the world’s largest refiner, its 45 refineries distributing in 25 countries have oil refining capacity of 6400000 barrels per day. ExxonMobil owns over 37,000 gas station and 1 million industrial and wholesale customers in the world. Every year ExxonMobile sells about 28 million tons of petrochemical products to over 150 countries. The company for 85 consecutive years won the 3A credit rating. It is one of the few companies that keep this world record.

mud recycling system for oil and gas drilling

mud recycling system for oil and gas drilling

2) Royal Dutch Shell Plc (Short name”Shell”)

Royal Dutch Shell Plc (“Shell”) is with short name Shell. Shell is a global group of energy and petrochemicals companies with around 92,000 employees in more than 70 countries and territories. Shell is the share combination of Shell Transportation and Trade Co., Ltd. (UK) with Royal Dutch Oil Company shares which was found in 1907. Shell is the second largest oil company in the world
In year 2007, Shell has turnover around $318 billion, ranking third in the world.

3) Chevron Texaco

Chevron Texaco is the second largest American oil companies, business throughout 180 countries and regions in the world. In year 2007, Chevron Texaco has turnover around $200 billion, ranking seventh in the world.

4) ConocoPhillips

ConocoPhillips is the combination of Conoco, Phillips, Tusco and Williams etc.. It is the third large oil company in America.

5) BP

British Petroleum (BP) is a multinational oil company and it is the world’s fourth largest oil company. BP business is over 100 countries and regions in the world, covering oil and gas exploration and production, refining and marketing, petrochemicals, BP is also involved in finance, solar energy and other field. The company is headquartered in London, the current chairman David Simon (David Simon), General Manager John Brown (John Browne). BP is the world’s third-largest publicly traded oil company, and its shares are traded on the New York, London, Paris, Frankfurt, Zurich, Tokyo listing.

6) Total

TOTAL is one of the four largest petrochemical companies in the world. Its lubrication business is in more than 110 countries worldwide.TOTAL has headquartered in Paris, France, It is composed of 3 major brands: TOTAL, FINA and ELF.

What is a telescopic skid for drilling waste centrifuge?

Telescopic skid is a high skid with adjustable height. In drilling waste field, it is mainly used to mount decanter centrifuge.

GN Solids Control company offer telescopic skid with height changed between 2.0m, 2.2m and 3.3m. It can meet most drilling site condition.

Telescopic skid for drilling waste centrifuge

Telescopic skid for drilling waste centrifuge

When need to use a telescopic skid, the advantages of it?

In mud recycling system (solids control system), there will be many tanks, decanter centrifuge can be mounted on the tank top. Hydraulic phase will fall into the tank under the centrifuge. Then a pump charge mud centrifuge tank to other tank or processing machines.

In drilling waste management system, the centrifuge can be mounted to a telescopic skid. With the skid, the centrifuge fluids outlet port should be higher than other mud storage tank. In this case, hydraulic phase can flow under garavity into mud storage tank or other device already there. No extra tank to store the mud and no need charging pump for the transfer. It can save cost of tank, and save power. And another side, the space under the telescopic skid can be used to mount other machine or device, like VFD control panel, centrifuge feeding pump, or others.


In oilfield drilling, there is a lot for different sludge including drilling waste, water, oil, and cuttings. This makes it to be a tought job to managing the liquid and solids separation. Especially getting enough drying solids from the mixture of drilling waste from mud sytem and tank cleaning waste.Now from GN lastest oifield application cases we have Vertical Cuttings Dryer for the tough job.

GN Oilfield Drilling Sludge Dryer System

GN Oilfield Drilling Sludge Dryer System

Video:GN 2nd Generation OBM Cuttings Vertical Dryer Factory Testing

GN Solids Control posted on Thursday, 03 April 2014 07:25
In 2012 GN developped the first Generation Vertical Cuttings Dryer,As the first API certified company in China,After field testing and customer’s feedback, GN Solids Control now developed the second Generation Vertical Drilling Cuttings Dryer.GN second Generation Vertical Cuttings Dryer is used for OBM and SBM to get drying cuttings with oil below 5% even to 3%, and recovery oil for drilling fluids system.

For getting oil on cuttings to below 3%, waste management company normally use the Thermal deporption unit (TDU)

Thermal desorption is an ex-situ treatment technology that utilizes heat to increase the volatility of contaminants such that they can be removed from a solid matrix: typically, soil, sludge, filter cake, or drill cuttings. Desorbers are designed as a separation technology to remove organic compounds from such matrices without thermally destroying them. The volatilized contaminants are then either collected or thermally destroyed in secondary treatment units. A thermal desorption system therefore has two major components; the desorber itself and the off-gas treatment system.

Usage for TDU in Drilling Sludge

Thermal desorption is a thermal soil remediation technique that has been utilized at several hundred environmental remediation projects world wide. As a mature technology, thermal soil remediation performance can be predicted with a high degree of confidence.

Besides ultilizing GN Vertical cuttings dryer, the high speed decanter centrifuge is very important for the LGS separation.

Video:GN Vertical Cuttings Dryer for water based mud drilling waste Management

Posted by GN Solids Control on Thursday, 15 May 2014 09:59
As is known Vertical Cuttings Dryer is normally used for oil based drilling cuttings drying, because it is difficult for manufacturer to develop the water based drilling waste vertical cuttings dryer. So contractors normally use the High G Linear Motion Cuttings Dryer Shaker to handle the water based drilling waste. The problem is the linear motion shaker dryer can not give the expected drying cuttings.

Drilling mud types

There mainly 3 types of drilling mud for drilling rig system: Oil based mud (OBM), water based mud (WBM) and Synthetic based mud. According to different drilling rig and different depth, suitable drilling mud type will be used.

WBM (water based mud) is the most common drilling mud type. Most widely be used worldwide and its relative lower cost and lower pollution.

OBM (Oil based mud) is mainly used for very deep drilling and the difficult depth drilling rigs. OBM cost higher and have a big pollution to environment.

vertical cuttings dryer

vertical cuttings dryer

SBM (Synthetic mud) is used as the alternative of OBM. SBM drilling waste is relative easy to be treated. It has a lower pollution. At offshore rigs, the SBM drilling waste can be discharged directly to the sea. But it is not stable under high temperature. It is more difficult to get but the total cost lower then OBM and WBM.

Cuttings dryer machine for OBM and WBM

Cuttings dryer used for Oil based mud (OBM) and Waste based mud (WBM) is different. Normally, high G dryer shaker is used for water based mud (WBM), vertical cuttings dryer is used for oil based mud (OBM) and Synthetic based mud (SBM). But a higher standard vertical cuttings dryer can treat all the 3 types of drilling mud cuttings: OBM, WBM and SBM. It request a high standard of manufacturer. Few company can make it.

Top brand manufacturer for drilling mud cuttings management

1) CSI

2) GN Solids Control

Vortex mud hopper is an important part of drilling mud mixing system. It is used to mix new qualified mud for drilling rigs. The drilling mud vortex hopper usually used together with a centrifugal mixing pump or shear pump to realize the function.

votex mud hopper

vortex mud hopper

GN Mixing Hopper Technical Parameters

Model Pressure Inlet Outlet Weight Dimension: L×W×H
GNSLS45A 0.25~0.4Mpa 6 Inch 6 Inch 174Kg 1100×680×949mm
GNSLS35A 6 Inch 6 Inch 174Kg 1100×680×949mm
GNSLM25A 4 Inch 4 Inch 113Kg 850×570×851mm
GNSLM20A 4 Inch 4 Inch 113Kg 850×570×851mm

Applications of drilling mud vortex hopper

Normally, vortex mud hopper used together with centrifugal mixing pump, 1 vortex mud hopper + 1 mixing pump, or 2 vortex mud hopper + 2 mixing pump, it is called jet mud mixer. If it widely used in oil and gas drilling, HDD, CBM, micro tunneling, piling, water well drilling, etc…

While the vortex mud hopper combined with shearing hopper, it is a shearing mixing. It is used while there is fibrin in the injected chemicals. Shearing pump will cut the fibrin before enter into hopper for mixing.

Jet Mud Mixing System

jet mud mixer

Jet mud mixer

China manufacturer GN Solids Control offer the world with drilling mud jet mud mixing.We are an exporter of drilling fluid jet mud mixer for Indian, Russian,middle east.etc.We manufacture and design drilling bentonite mud mixer,drilling mud tank jet mixer.We supplied to Oilfield Company of the Turkey Venezuela, Indonesia, Russia, the United Arab Emirates,Turkey,and Morocco and Century Int’l Oilfield Equipments LLC of the United Arab Emirates etc.choose us as supplier.Our factory and company are Quality Management System ISO 9001-2000 certified.

Decanter centrifuge is a high efficient equipment used for solids control and drilling waste mangement. Many customer, they are wondering how to choose the suitable decanter centrifuge model for their applications. Some customer thought, the big speed, the higher. It is not correct. Some customer believe Variable Frequency Drive (VFD) high speed centrifuge can cover all the speed and G force, it is the best choice. Actually, it is not correct for all conditions.

Below some Question and Answers between customers and the decanter centrifuge manufacturer. It may help you for some understanding.
Q 1. We prefer GNLW363 VFD high speed decanter centrifuge, the highest international standard. The speed adjust from 0~3200rpm, but in case of no VFD we need it to work only with 1400rpm.

PLC smart control VFD centrifuge

PLC smart control VFD centrifuge

Answer from GN: GNLW363 centrifuge is mainly for high speed. We only recommend If you are mainly running at lower speed, we recommend GLW452. It is a 18inch decanter centrifuge, with bigger capacity, better price. GNLW452 is a middle speed centrifuge, normally 1800rpm, GN can mach VFD panel for 0~1400rpm per customers request.
For heavy mud, 452 centrifuges is the best choice to used with solids control equipment to reduce the weight. It is widely used for barite recovery (high gravity separation).
Q2: How can we get fixed speed control for VFD centrifuge?
Answer from GN: Normal, the only VFD control for VFD centrifuge, if customer need both VFD and fixed speed control, you can choose an extra Hydraulic Coupling & Fixed speed control panel. The Fixed speed control panel can be separatedly, or design together with the VFD panel, whichever you like.
Q3: How do services and change of parts happen during guaranty period and who is responsible for doing it after commissioning?
Answer from GN: GN company will send engineer for first time commissioning and training if request by customer. Customer can also send engineer to GN China base for training. For normal parts changing and some small questions after first time commissioning, GN will offer long-distance instruction. If your engineer cannot solve with long-distance instruction, GN can send engineer to jobsite for support.
Q4: We want a centrifuge mostly running around 3200 and 1400rpm, which decanter centrifuge model suitable?
Answer from GN: GNLW363 fixed speed is suitable. We can offer you 2 sets pulley with belt for 2 fix speed. You only need to change pulley and belt to get another speed.
Q5: Do we need to stop the centrifuge while changing pulley and belt for another fixed speed?
Answer from GN: Yes, indeed. You have to stop the centrifuge decanter and when it is stable, you remove the pulley and belt on the machine and change for another set.
Q6: How and there we can buy GN equipment and what about spare parts and after sales services?
Answer from GN: GN Solids Control, as an international group for solids control, waste management and replacement shaker screen manufacturing, we have R&D and manufacturing headquarter in Beijing China. We have warehouse and office in Houston, and you can also source support from GN other distributor in Argentina, Chile, Brazil, Australia, Iran, Korea



Low pressure / high pressure mud gun is used for mud tanks usually together with mud agitator. It is used as an assistant of mud agitator.

Drilling mud agitator usually mounted in the middle of the tank compartment to agitating mud and prevent it from settle down. But at corners of mud tank, agitator impeller cannot effect. In this case mud gun used.

high pressure low pressure mud gun

high pressure low pressure mud gun

Drilling fluids mud gun is mounted at the corner of tank. It has high pressure and low pressure for option. Some for international customer, sometime we will prefer 5000psi high pressure mud gun. It request a high standard of the seamless steel pipe feeding for the mud gun.

China supplier usually offer 1.6Mpa, 3.2Mpa and 6.4Mpa low pressure and high pressure mud gun. Parameters as below:

GN Mud Gun Technical Parameters






Working Pressure

≤6.4 Mpa

Rotation Degree



Nozzle Qty


Gun Diameter

2 Inch

3 Inch

Connection Size





Applications of mud gun

Drilling fluids mud gun can be powered by centrifuge pump, mostly mixing pump, it is called low pressure mud gun. Dud gun in rig system can also be powered by mud gun with high pressure. Mostly, only high pressure or low pressure will be used in one system, but in some mud system, customer will prefer both high pressure and lower pressure.

Sizing and model selection of mud gun

The number of mud gun depends on the size of tank. Usually mud gun installed with mud line of mud tank. According the inlet pipe size, there are 2’ mud gun and 3’ mud gun for option. According to different structure feature, there are two types of mud gun: fixed mud gun , and rotary mud gun.

The mud gun in the mud system can also be used for transfer mud from compartment to compartment, like for trip tank compartment.GN Mud Guns are available for rotation adjustment to allow the operator to optimize the mud guns performance. The replaceable wear resistant jet nozzle is used, which is special design with better shearing.

MI Swaco decanter centrifuge mostly used in oil gas drilling mud solids control and drilling waste management services. GN Solids Control have the Branch in Houston, USA offers the similar drilling mud decanter centrifuge for the oil gas industry.

About MI Swaco Drilling Mud Decanter Centrifuge

M-I SWACO is a Schlumberger oilfield drilling mud service company, one of the largest oilfield service company in the world. provides high-speed, variable-speed, and fully variable-speed drilling mud decanter centrifuges designed specifically to process drilling fluids to the highest environmental standards. MI Swaco decanting centrifuges are designed to deliver high fluid recovery rates and efficient solids control. Together, that adds up to a significant reduction in the operator’s total fluids cost and less waste for disposal.

MI Swaco Decanter Centrifuge

GN Decanter Centrifuge

Swaco Decanter Centrifuge for Solids Control

MI Swaco Decanter centrifuges recover as much as 95 percent of the barite in weighted drilling fluids. The barite is returned to the active mud system, while the decanting centrifuge discards the finer, lower-gravity solids.
For drilling waste management of the  chemically enhanced dewatering systems, M-I SWACO decanting centrifuges reduce liquid discharge volumes significant while enhancing total solids control system efficiency.

GN Solids Control & MI Swaco Centrifuge Models:

  • MI Swaco Decanter Centrifuge VS GN Solids Centrifuge
  • MI Swaco 414  Small Decanter Centrifuge mainly for drilling fluids barite recovery which is similar to GNLW452 Decanter Cengtrifuge
  • MI Swaco 518 Premier high-speed decanting centrifuge is similar to GNLW363 Series High Speed decanter centrifuge for low gravity solids separation and drilling waste management dewatering.
  • MI Swaco CD-500 Centrifuge is similar size to GNLW453 decanter centrifuge for different applications in the oilfield drilling solids control and drilling waste management.
  • MI Swaco CD-600 Centrifuge is a big bowl big volume centrifuge like GNLW553 big bowl centrifuge which is popular in the oil industry.

GN Solids America is located in houston Texas offers drilling mud decanter centrifuge for oil industry.