GN do offers top quality high speed / big bowl decanter centrifuge for on shore and offshore drilling rigs with different sizes.
Main series of GN centrifuges:
1) 8’’ mini size decanter centrifuge GNLW223 / GNLW223-VFD, with 3800 / 4500 rpm fixed speed for option. Variable frequency speed control also available. The mini baby side centrifuge is normally used for diamond drilling with a small capacity and footprint.
2) 14’’ is the most popular size for drilling field. The latest design GNLW363CG for fixed speed and GNLW363C-VFD for variable speed frequency speed control. GN offers premium high standard and economic standard to cater for different standard market and applications. The design for the 2 standards is the same, but economic standard centrifuge utilized economic standard material to lower down the cost, and enable a better price. But even GN economic standard, it is still better than normal Chinese standard.
14’’ centrifuge is widely used in onshore and offshore drilling rigs. It can be used for barite recovery, for fine solids separation, drilling waste management. It can also be used for waste water treatment with its super high speed.
3) GN offers 2 sides of 18’’ decanter centrifuge. One is economic big bowl GNLW452 with middle speed for barite recovery or HDD, CBM drilling rigs. It is fixed speed control.
Another 18’’ decanter centrifuge is GNLW453C-VFD, it is a high speed decanter centrifuge with big bowl.
For customer like big bowl but budget is tight, it is a good choice.
4) 22’’ inch the big bowl big capacity centrifuge special design and made by GN Solids Control. It is widely used in drilling waste management field and the solids control system. Especially in European counties as in these countries, the rigs site do not like desander, desilter cone separator. Big bowl big capacity centrifuge becomes necessary in these applications.
If you have any questions regarding onshore and offshore decanter centrifuges, welcome you contact GN Group.
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Published: 12 December 2015
GN high speed decanter centrifuge is widely used in oil & gas drilling, CBM, HDD, drilling waste management, waste water treatment, oily sludge separation, clay mine, tank cleaning, as well as mining industry.
Last week, GN decanter centrifuge system was dispatch for a East Asia customer. The system will be used for mining industry. The function of the system is to reduce the water content.
The decanter centrifuge system including following:
1) 1 ea shale shaker GNZS594E.
It is 4-panel shale shaker with linear motion. The shaker screen we have steel frame and composite material for option. The shale shaker can be used to treat drill mud as solids control shale shaker. It can also be used as High G drying shaker with high G force to treat drilling cuttings. The linear motion design with Adjustable high G force make GNZS594 very popular for any types of drilling including: oil gas drilling, CBM drilling, HDD, water well, geothermal well drilling mud cleaning. The simple but heavy duty design makes GNZS594 shale shaker have reliable operation with less maintenance.
2) 2 ea decanter centrifuge GNLW363CG-VFD.
It is GN C-generation advance design decanter centrifuge. Two motors of GNLW363 centrifuge mounted on one end, parallel and at equal elevation for smallest footprint and maximum accessibility. The centrifuge Bowl material made from Duplex Stainless steel 2205 by centrifugal casting, which is better than SS304 and SS316. Stainless steel conveyor heat treatment to over 1000℃ for better strength. The opening on the conveyor does increase the capacity of the centrifuge. The centrifuge solids discharge port is protected by special ceramic inserts, it is anti-abrasive and with longer life time. Furthermore, GN equip bowl lifting bracket to protect the bearing during transportation.
3) 2 each Feeding pump for 2 each decanter centrifuge respectively
The feed pump is from German brand NETZSCH. Fluids touch material SS316L.
4) Electrical control system for all above equipments.
4) Mud tank, 1 ea, all above items mounted on the tank for turnkey solution.
For more information of GN made equipment, welcome you contact GN Group with its 7×24 hours service lines.
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Published: 04 December 2015
GN Solids Control is world famous manufacturer for mud solids control and drilling waste management decanter centrifuge. GN high speed decanter centrifuge and big bowl large volume centrifuge owns a big market share no matter in China and worldwide.
Last week, 3 sets GN big bowl large volume decanter centrifuge have sent to Australia. The 2 set decanter centrifuge is 22inch diameter, they will be used for diamond drilling. 
Parameters of GN big bowl large volume centrifuge
Model: GNLW553C-VFD (C means the 3rst generation decanter centrifuge. VFD means variable frequency control.)
Drive system: VFD Centrifuge, variable frequency control
Screw protection: with tungsten carbide tile for screw conveyer which is better than hard surfacing protection.
Bowl size: 18†X 61 (550×1800mm);
Bowl Speed: Max. 3000RPM
Nominal operation speed is from 0-2500RPM.
Differential speed Max: Max. 0-90 RPM, For mud operation dif. speed is to 0~45 RPM.
Max G-Force: 2719@3000rpm
Typical G-force: 1888@2500rpm
Separation point: 2~5μm
Gearbox Torch: 12000N.M
Feed pump: 22KW (30HP)
Oilfield skid: To be portable and mounted in telescopic oilfield skid with positive displacement feed pump.
Explosion Proof: All equipment is explosion proof, class 1, division 1, group D for Hazardous location;
Optional functions for GN big bowl large volume decanter centrifuge:
1) Bearing Temperature sensor
2) Vibration switch
3) Limited switch for centrifuge cover
4) Separate press type screen for the VFD control.
The normal standard for explosion proof is CNEx (China National Explosion proof). Motors are for Zone 1 while the VFD panel is for Zone 2. The Atex / IEXEx for zone 1 or zone 2 is for option.
Applications of GN big bowl large volume decanter centrifuge:
1) For oil rig mud solids control system, especially for systems that desander and desilter cone separator no used. the large volume decanter centrifuge is necessary.
2) In waste management field for the large volume.
3) In dewatering system (also called chemical enhancing system).
4) For CBM, tunneling or diamond drilling mud system.
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Published: 04 November 2015
As itfamiliarGNSolidsmanagementshippedonecompleteoilprimarilybasedwastecleanupunittoCOSL ,2015.Detailsasbelow:
Afterthecheckingtheperformanceoftheunit,COSLrepeattheorderforasecondoilprimarilybasedwastecleanupunit.togetherofthemostapprovedsellerforCOSLtoproducesolidsmanagementandwastemanagementsystem.GNSolidsmanagementhaveequippedseveralsolidssystem,liquidmudplant,drillingwastemanagementsystemtoCOSL.
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Published: 23 October 2015
When we mentioned cutting dryer, there are always 2 meanings. One is for High G dryer (Hi-G dryer), or named as high G shale shaker or cutting drying shale shaker. It is normally used for water based mud drilling cuttings. It is a special designed shale shaker with high G force and up to 7.5 or 8. And the G force is adjustable to suit for more applications. High G cutting dryer is with a longer screen deck and screen area, mostly 4-panel.
Another kind of cutting dryer is vertical cuttings dryer (short name as VG dryer). Vertical Cutting Dryer uses centrifugal force to dry drilled solids from OBM or SBM . A stainless steel screen bowl traps “wet†solids and make them speed up to 900RPM with G force to 420G. It can also offer super high speed 1200RPM with G force to 750G. Liquid is forced through the screen bowl openings, while “dry†solids are extracted by the angled flights attached to the cone, which rotate slightly slower than the bowl. Tungsten carbide surface welding protects the flights from abrasive and ensures long operational life. The purpose of this is maintaining a constant gap between the scroll and screen bowl, which is very important for proper operation.
In some cases, when people only mentioned cuttings dryer or cutting dryer, is means High G dryer shale shaker. And Vertical dryer is for vertical cuttings dryer.
Other waste management equipment used together with cutting dryer
High speed Decanter centrifuge
No matter high G dryer shale shaker or vertical cuttings dryer, after it, decander centrifuge should be used to separate the fine solids from the recoveried fluids. 14’’ decanter centrifuge is the most popular size. 18 inch and 22 inch big bowl is also normally used for big capacity. It is usually mounted on a telescopic skid and fed by a screw pump.
Screw conveyer
It is used to transfer drilled cuttings, feed for high G dryer shale shaker, vertical cuttings dryer. Screw conveyer can also used to transfer the drilled solids discharged from dryer to the collection position.
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Published: 17 October 2015
GN engineer just came back from a rig jobsite for the commissioning of GN drilling waste management dryer system for a Nigeria drilling company.
It is a reputable drilling company. All their rigs are big oil and gas drilling rig 1500hp. Mostly, they use OBM (oil based mud) or SOBM for drilling. WBM (water base mud) is not normally used. So waste management system is necessary for them. One the one hand, it is request by the company for environment protection. On the other hand, it can recovery drilling mud for reuse, and save their drilling cost on chemicals for drilling fluids. 
Drilling waste equipment GN offered to the Nigeria drilling company
1) Drilling waste decanter centrifuge GNLW363C-VFD
GNLW363CG-VFD decanter centrifuge is the most popular model for drilling waste management field. It is the latest design from GN group. It is a 14 inch variable frequency drive decanter centrifuge with max. speed 3900rpm.
2) Vertical cutting dryer GNCD930
Vertical cuttings dryer is widely used together with drilling waste decanter centrifuge for OBM (oil base mud treatment). The VG dryer is made and designed by GN Solids Control. GN Solids Control is the No. 1 manufacturer for drilling waste vertical cuttings dryer exporting.
3) Screw pump cater for drilling waste transfer
Screw pump can transfer mud and feed for decanter centrifuge. The screw pump GN cooperate with a German company NETZSCH. All fluids touch material made from Stainless steel 316L. GN can offered good quality with good price.
4) Screw auger conveyer in difference sizes and transfer length for waste cuttings transfer.
GN standard screw conveyer is with 12 feet length for each section. Customer can choose 1 section ~ 4 section to get length 12 ft, 24 ft, 36 ft or 48 ft. Auger diameter have 12 in, 14 in and 18 in for option.
GN can offers customized solutions on drilling waste cuttings management system. Welcome you contact GN group freely for solution.
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Published: 30 September 2015