Shale shaker is the main wearing parts of solids control shale shaker and drilling waste management high G dryer (high G drying shaker). And it is the most costive part of drilling activities. For example, 1 ea 1000hp rig, normally it is equipped 2 shale shaker and 1 mud cleaner, means 3 shakers totally. It is 3-panel shale shaker. And 1 shaker uses 2 batches screen every month. The rig will run out 216 pcs screens every year. If the screen lifetime short, the consumable screen quantity will more than double.
GN Solids Control is the top screen manufacturing from China, and services in USA. GN Solids Control is also China leading manufacturer on solids control shale shaker and drilling waste management high G dryer (high G drying shaker). The good experience makes GN more professional on screen manufacturing than other suppliers.
GN main clients are mostly shaker users, like drilling companies, mud services company or equipment rental company. Or big trading companies. In order to reduce their cost and give them better supporting under the low crude oil situation. GN Solids Control keep upgrade its process technology to improve quality and reduce the manufacturing cost, In this case, GN can offer lower price with higher quality replacement shale shaker screen for all GN clients. To thanks GN clients for their years’ supporting on GN, GN high quality replacement shale shaker screen is for sale now in the year start woth huge discount.
Besides the replacement screen for GN own design shale shaker, GNZS703 series, GNZS594 series, GNZS752 series. GN offer offers replacement for other famous brand shale shaker models. Below are part of the replacement shaker screens made by GN.
1) Replacement shale shaker screen for Derrick 500 shaker.
2) Replacement shale shaker screen for Derrick 2000 shaker
3) Replacement shale shaker screen for Swaco Mongoose shaker
4) Replacement shale shaker screen for Brandt King Cobra shaker
If you are interested in other models replacement shale shaker, welcome you contact GN Solids Control for more information.
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Published: 09 January 2016
GN is a leading manufacturer of mud solids control system and drilling waste management system. And GN is a manufacturing with a longer history for drilling solids control equipment research from China and services in USA. With the new environment protection rules comes out in more and more countries, GN drilling waste management equipment becomes more and more worldwide famous, and exported to more and more countries.
GN Thermal desorption unit and GN Drill cuttings drying system is the most popular equipment used for waste management. But many clients are wondering about their performance, they do not know how to choose the suitable type for their projects. Below is a simple introduction to tell the difference of the 2 systems.
Brief Introduction of GN Thermal desorption unit (TDU)
It is also called TDU. It utilizes thermal desorption to treat the oily conents. Normally, the materials treated by TDU, the solids control should be no less than 40%. Other wide, it cannot be spilled well in the pyrolysis furnace.
What kind of waste sludge can be treated by GN Thermal desorption unit (TDU)
In theory, all oil type solids whose vaporization point is below 420 degree centigrade could be treated with this system. The oil type solids above mentioned is oil waste and a certain amount solids, like mixture of mud and sand. The pyrolysis furnace roller in this design heat the material in spilling way, and the material is pushed forward by shoveling plates welled with a certain angle on the roller’s inner wall. If the material is only oily mud, the spilling character would be lower.
Brief Introduction of GN Drill cuttings drying system
It utilizes different separation equipment unit to remove the solids from the fluids step by step. If The fluids can be reused for drilling.
What kind of waste can be treated by GN Drill cuttings drying system
It can be used to treat the cuttings discharged from shale shaker, desander and desilter. It cannot used to remove solids control decanter centrifuge.
Difference of Thermal desorption unit VS Drill cuttings drying system
TDU can get clean water, clean oil and very dry solids with OOC≤0.05%. But the capacity is very small, 1~2 tons per hour.
Drill cuttings drying system use vertical cuttings dryer, and high speed decanter centrifuge to treat the waste material. It can reduce OOC to 3~5%. The fluids phase can be reused for drilling. It cannot get clean end products.
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Published: 25 December 2015
The routing and correct running schedule is necessary for a reliable performance of oilfield decanter centrifuge, and it can extend the lifetime of the centrifuge.
When the oilfield decanter centrifuge arrived jobsite, check every part to ensure them in good condition. Then assembly it well.
The schedule to use GN made oilfield decanter centrifuge are as following.
1) When the centrifuge arrived jobsite, firstly, remove the supporting ring under the bowl, and then remove the fasten belt. The ring and the belt is used to protect the centrifuge bearing during shipment. They are used to protect the bowl from vibrate and rotating during shipment.
Note: You should keep the supporting ring and the fasten belt well for reuse. Every time when the oilfield centrifuge moved from one side to another side. it should be protected by the ring and the belt, and locked well.
Start the centrifuge in a short time to check the rotating direction. if the rotating direction is not correct, you should stop the centrifuge soon, check and Change the phase conductors of the motors.
1). Start and run oilfield decanter centrifuge back motor in a short time to observe whether the gearbox rotates in a correct direction, and make sure there is no adnormal condition occured. Seen from the small end of the bowl, the gearbox shall rotate in counterclockwise.
2). Start and run oilfield decanter centrifuge main motor to observe whether the pulley runs in the correct direction, and make sure there is no adnormal condition occured. Seen from the small end of the bowl, the pulley shall rotate in counterclockwise.
3) If all rotating direction is correct, and the centrifuge running stably, then you can start the centrifuge feeding pump, and feed the centrifuge from small capacity. When the centrifuge is running stably, you can increase the feeding step by step.
Here is only some main point for oilfield decanter centrifuge operation. For detailed operation schedule, please refer the manufacturer’s operation manual.
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Published: 19 December 2015
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