Decanter centrifuge has many kinds, classified as speed, it has high speed, middle speed, low speed; classified by drive type, it has belt drive, fully hydraulic drive and magnetic drive; classified by manufacturers, it has GN Solids Control. The former 3 brand are U.S. brand and the last one is China brand. The only China brand can compare with U.S. brand.

Hereunder, we listed some middle speed centrifuge which is popular used for weighted drilling mud barite recovery, overseas and domestic market.

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Centrifuge uses high-G force to separate fine solids from liquid. It can be used to process weighted and unweighted, oil based and water based drilling mud. Popular centrifuge manufacturer like Derrick, Swaco and NOV brandt are US brand. Here introduce a China popular brand, GN Solids Control.

Let’s compare GN Solids with NOV Brandt centrifuge hereunder:

1. NOV Brandt centrifuge, HS-2171L centrifuge

The HS-2172L centrifuge is fed from the solids end of the conveyor. Mud is introduced into the feed chamber of the HS-2172L through a feed tube and, with the aid of a concave accelerator, exits through twelve (12) nozzles into the bowl.

The HS-2172L is equipped with variable frequency drive (VFD) control, which provides a controlled application of motor drive power to the centrifuge components (bowl, conveyor and feed pump). Customized hardware and software packages can be designed to meet specific installation and operational requirements. With a processing capacity of up to 550 gal/min (2082 lit/min), the HS-2172 series centrifuge is able to quickly process high volumes of mud while allowing prescribed mud weights and separation efficiency to be maintained. This enables the HS-2172 series centrifuge to produce fine cut points at higher flow rates, making it ideal for high-flow applications and critical-conditions solids control.

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ADIPEC 2013, Abu Dhabi oil show is the largest oil show in Middle East area. It has a large influence in oil and gas field, especially for companies from Middle East and North Africa. This month, GN Solids Control Co., Ltd attend the show with there high speed centrifuge, GNLW363VFD. This centrifuge is the best seller in Middle East and North Africa.

1. GN customer around the world, using GNLW363VFD.

This centrifuge has a stable working performance and also good reputation from the customer. Now it has been used in Iran, Iraq, Kuwait, UAE, Egypt, Lybia, Nigeria, Tunisia, Argentina, Brazil, America, India etc, over 60 countries and areas.

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Tunisia is a country located in North Africa. As an export-oriented country, the majority of the electricity used in Tunisia is produced locally. Oil production of Tunisia is about 97,600 barrels per day. That means this country has many drilling works under going.

GN Solids has already established links with many Tunisia national drilling company and Tunisia national mud Service Company. Only this year, they have exported many sets of solid control equipment and waste management equipment to Tunisia.

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There are many pumps need to be used for solid control system, like centrifugal pump, submersible slurry pump, shear pump, screw pump etc. The pump is accessory equipment to solid control system, not main equipment, but also necessary for your smooth job. If the pump quality is not reliable, you may find many troubles during the work.

GN Solids Control Co., Ltd. is the first API and ISO certified solid control equipment manufacturer from China. Their equipment is widely used in many areas of the world. The reliable product quality and nice service win good reputation for them. Hereunder, we see one importance pump, shear pump in all perspective.

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Hereunder, we want to introduce a kind of equipment connected solid control system and waste management system. It is screw conveyor, or name it auger. It is utilized to transfer solid waste or slurry from solids control system (including shale shaker, mud cleaner or centrifuge) to drilling waste systems for further treatment.

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Classified by drive mode, Decanting Centrifuge has different models, like hydraulic drive, electric drive and also magnetic drive. Different drive model has different advantages and disadvantages. Hydraulic drive centrifuge can be started very smoothly, with less noise and less friction. But once some problems arise, it is very hard to maintenance. Electric drive is not that smooth when starting, but is easier for maintenance for trouble shooting, so that lead to less cost.

Some remarks:

FHD: Full Hydraulic Drive ; VFD: Variable Frequency Drive;  Magna: Magnetic Drive

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Derrick DE-7200VFD Decanter Centrifuge is Variable Frequency Drive Centrifuge which is designed to achieve larger treating capacity and keep pace with the ever-changing needs of the oil and gas industry. New model centrifuge has been combined with durability and reliability in a product that is easy to operate and fully adjustable.

But with time goes by, not only Derrick can fabricate this big treating capacity centrifuge, GN Solids from China have already control the core technology and can fabricate the big bowl big capacity centrifuge, GNLW553VFD.

Hereunder, we compare these two brand centrifuge, US brand VS China brand. And let us know more about the difference and similarity.

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Decanter Centrifuge is important both for solid control system and waste management system. A variable frequency drive centrifuge can offer different speed for different use. Lower speed is better for barite recovery during solid control; higher speed can be OK to separate cuttings during waste management operation.

Under current situations, well-known centrifuge brands are MI-Swaco, Derrick Equipment, Nov Brandt and a new star from China- GN Solids. The China brand GN reach the step of US brand with its core technology, excellent management and reliable after-sales service. Let’s compare one of US brand below with GN decanter centrifuge.

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Drilling fluid is expensive in the oil drilling operation. The cost is even higher than solid control equipment. If you use solid control system to recycle valuable drilling chemicals, it will save a lot of money. Decanter centrifuge is designed for barite recovery and dewatering in global drilling projects where the best efficient fluids/solids separation is required. Hereunder, we introduce world popular US brand Derrick DE-1000 FHV and China brand GNLW363VFD.

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