As the first China manufacturers specialized in drilling waste management equipment, GN Solids Control owns rich experience in this field. Decanter centrifuge and vertical cuttings dryer are the main equipment for drilling waste management. After many years’ running in different jobsites, GN Solids Control has good understanding on the drilling waste decanter centrifuge and vertical cuttings dryer.
Big bowl decanter centrifuge is widely used to treat the drilling mud and drilling cuttings. GNLW553C-VFD is a big bowl decanter centrifuge with 22’’ bowl diameter. As one of the main equipment from GN Solids Control company, it is designed and made per the latest technology. GN company can offer the big bowl decanter centrifuge with good price and top quality.
Features of 22’’ decanter centrifuge, model GNLW553C-VFD
The GNLW553C-VFD high-performance centrifuge is supplied with a 18 inch diameter bowl. The centrifuge model is with a length over diameter ratio of 3.4 : 1.
The centrifuge is fitted with a 75hp main drive motor and a direct coupled 30hp back-drive motor. The main drive motor and back drive motor are mounted at one end of the centrifuge. This design can minimize the centrifuge footprint.
The explosion proof motors and control panel can be certified to use in ATEX Zone 1 / Zone 2 hazardous locations, IECEx Zone 1 / zone 2 hazardous locations, CNEx Zone 1 / Zone 2 hazardous locations. For different EX certificate, price and leading time are much different. Clients can choose the suitable EX standard per the jobsite request.
The GNLW553C-VFD decanter centrifuge is fitted with main bearing temperature and vibration sensors which give the GNLW553C-VFD improved levels of safety and performance monitoring features.
Usage of 22’’ decanter centrifuge, model GNLW553C-VFD
The big bowl centrifuge is for removal of low gravity solids from the fluid system at reduced operating costs.
1) The big bowl centrifuge can be used to treat water base mud and drilling cuttings
2) The big bowl centrifuge can be used to treat oil base mud and drilling cuttings
3) The big bowl centrifuge can be used in dewatering unit
4) The big bowl centrifuge can be used to recovery barite from drilling fluids
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Published: 11 March 2016
Diamond drilling is an important division for GN Solids Control. GN Solids Removal Unit is specially designed with compact tank system for mobilization.
The Solids Removal Unit includes a mini GNZS752 Shale shaker, and a baby size decanter centrifuge GNLW223 (9 inch) centrifuge, and the decanter centrifuge feed screw pump, as well as the mud tank and mud mixing pump and shearing hoppers.
The GNZS752 shale shaker is made for removing coarse particles in the drilling fluids and, the GNLW223 decanter centrifuge is for cleaning fine solids in the drilling fluids. After treatment, the drilling fluids can be used for drilling again. This saves money for preparing new drilling fluids, and also it gives an environmental friendly jobsite.
Diamond drilling is different from other drilling, the diamond core drilling needs a small handling capacity solids removal unit, but also it needs to be very compact for transportation, and small foot print for set up.
The mud tank is for storage of drilling fluids, and the mud mixing pump and hopper is for adding chemicals to the drilling fluids.
The GN Solids Removal Unit can be put into a 20FT container for international shipping, and GN solids control provide commissioning service and training for the clients to operate the equipment. What we offer the clients is a turn-key solutions for handling the drilling mud.
With our worldwide partners and USA, China, Russia branch, we support our solids removal unit all around the world. Besides the solids removal unit, GN also have the oil gas drilling solids control system, No dig mud recycling system, TBM and bored Piling desander plants. GN Solids Control focuses on the liquid and solids separation solutions.
As the first API certified solids control company in China, GN Solids Control is your reliable supplier for Solids Removal Unit.
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Published: 06 March 2016
As more and more governments issued more and more strict regulations on the envornment protection, drilling waste management equipment becomes more and more necessary at drilling rig site, especially at oil and gas drilling rig site. As the drilling fluids contents various kind of chemicals, if discharged directly. it will have very bad pollution to the environment.
GN Solids Control latest design drilling waste management equipment drill cuttings solidification unit are welcomed at jobsite.
1) The drill cuttings solidification unit can be used to treat drilling cuttings discharged from the high G drying shaker. When the cuttings from solids control shale shaker, desander, desilter treated by high G drying shaker, the fluids will go to drying shaker catch tank for further treatment, the solids from high G drying shaker can be treated by drill cuttings solidification unit.
2) The drill cuttings solidification unit can be used to treat drilling cuttings discharged from decanter centrifuge. The liquid phase will be covered by further treatment, like dewatering unit. while the solids phase can be treated by drill cuttings solidification unit.
3) The solids discharged from vertical cuttings dryer can be further treated by drill cuttings solidification unit. It can reduce the water content in the waste.
Many clients may wonder, what is the water content after the drillings treated by drill cuttings solidification unit? It is not easy to see what the water content is. As it is flexiable. It is controlled by the operators. If you want to make the cuttings dryer, you add more chemicals, if you do not need very dryer, you can reduce the quality of chemical.
Features of GN latest design drill cuttings solidification unit
1) Small footprint with high efficiency of GN latest design drill cuttings solidification unit.
2) Automatically control of GN latest design drill cuttings solidification unit.
3) All the screw conveyers of GN latest design drill cuttings solidification unit are variable speed control.
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Published: 27 February 2016
GN dispatched over 30 sets high speed and low speed decanter centrifuges for an Algeria projects in the beginning of year 2015. Till now the centrifuges are running nearly 1 year. The clients are happy with the performance and highly commended with GN centrifuge performance and GN people services.
All the centrifuges are the model GNLW363CG. GN C class decanter centrifuges is the 3rd generation. It is the latest design from GN Solids Control company. All the centrifuges are equipped at jobsite for mud solids control and drilling waste management. They are used to recovery barite from drilling fluids in solids control system. And in the waste management system, they are running in high speed to separate the fine solids and reduce the weight of the mud. 
Based on the latest and advanced design of GN Solids Control decanter centrifuge, the centrifuges for Algeria project are capable with below features after some value-additional design.
1) All the centrifuges are fixed speed control. But the operators can change speed through changing pulley and belt. All the centrifuges have 4 speeds for optional: 3200rpm, 2800rpm, 1800rpm, 1600 rpm.
2) There are temperature senses for the main bearings at both ends. Then bearing temperature can display on the electrical control screen. The operators can set up the max. temperature allowed for the centrifuge bearings, then when it is over heat, the centrifuge will shut down to protect the machine.
3) The explosion proof control panel are made from high quality aluminum. The lifetime is long. And it is with a better performance for sealing. And also the appearance is nice.
4) The screw protection for the centrifuge is interchangeable tungsten carbon tile. It is much more reliable than the normal way hard surface welding.
Besides above point, the GNLW363CG new design decanter centrifuges are with below features:
1) It is more user friendly.
2) The performance is more reliable.
3) It is more east for operation and maintenance.
4) The lifetime is longer as it is made from upgrade material.
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Published: 19 February 2016
As worldwide famous manufacturer on oil field mud solids control equipment and drilling cuttings waste management equipment. GN Solids Control advanced design decanter centrifuges earned a good name worldwide. All control system for the centrifuges are design and made by GN own engineering team.
Positive pressurized control panel for variable speed frequency control are mostly equipped for GN high quality waste decanter centrifuge and vertical cuttings dryer. The explosion proof enclosure is made from anti abrasive stainless. Inside components of GN Positive pressurized control panel are all chosen from international famous brand: Schneider, Siemens, ABB, etc…
Positive pressurized control panel is a light point of GN. It is not only for start and stop of the equipment. But also, GN giant engineering team developed his own programmer with PLC for smart control. The PLC control panel for VFD centrifuge is not only control the main motor and back motor of the centrifuge; it does also control the pump and offer a variable speed.
As most GN equipment need to equip electrical control panel, and all clients eagerly request high quality explosion proof control system with processional design, good price and short delivery time. GN Solids Control developed his electrical control department and make high quality explosion proof control panel, complete electrical control system and junction box only only for GN equipment, but also for different applications. GN Solids Control is certified manufacturer of explosion proof control systems. 
Flame proof is the most common type for explosion proof control panels. It can be applied for mud agitator, centrifugal pump, shale shaker, mud cleaner, mixing unit, oil and gas drilling mud solids control system, HDD / CBM mud recycling system, no dig desanding plant, fixed speed or variable speed for screw conveyer, and other applications.
The enclosure of GN flame proof type Explosion proof control panels are made out from high quality abrasive resistant Aluminum. It is with nice appearance, better sealing performance and light weight. It suits China National Explosion Proof (CNEx) standard. The protection level of GN standard Ex control panel is IP56, and suits for Class 1 Division 1, group C and D.
If you have any questions regarding explosion proof control panel or system, welcome you contact GN Solids Control freely.
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Published: 09 February 2016
In nowadays, a complete oil and gas drilling rig should be equipped at least 2 mud systems: One called solids control system for drilling fluids treatment; another system called the pitless mud system for drill cuttings treatment.
Many clients are wondering, if the pitless mud system for drill cuttings system can replace the shaker tank system or not?
Firstly, we have a draft idea about the 2 mud systems.
Solids Control system for drilling fluids treatment
Complete solids control system can be composed of 4-stage solids control equipment or 5 stage solids control separation process.
The 1rst stage solids control equipment: shale shaker. It is used to remove the coarse particles from the drilling fluids.
The 2nd stage solids control equipment: Desander, it utilizes 10’’ hydrocyclone cones to remove particles above 47 microns.
The 3rd stage solids control equipment: Desilter, it utilizes 4’’ hydrocyclone cones to remove particles above 27 microns.
The 4th stage solids separation equipment: Decanter centrifuge. It utilizes centrifugal force to remove the fine solids to 2 ~ 5 micron. Middle speed decanter centrifuge is normally used this stage to recovery the barite.
The 4 stages solids control equipment composed of 4 stage separation. Another separation is for vacuum degasser. It is used after shale shaker and before desander desilter.
Clients chose the suitable separation machine per rig condition.
As the mud pit is forbidden in China at the rig site, pitless mud system for drill cuttings treatment are more and more equiped.
1) High G drying shaker, it is normally used to treat water base drill cuttings.
2) Vertical cuttings dryer. It is used to treat oil base drill cuttings.
3) High speed decanter centrifuge will be used after high G drying shaker or vertical cuttings dryer to separate the fine solids
4) Dewatering unit. If there are many ultra fine solids cannot be removed by centrifuge directly. Dewatering unit for chemical dosing will be used.
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Published: 02 February 2016