Decanter centrifuge is widely used in oil and gas drilling field. They have many applications.
The main application of decanter centrifuge for oil and gas drilling field
1) Middle speed centrifuge is widely used in solids mud system to for the recovery of barite. It can reduce the mud weight.
2) Decanter centrifuge can be used in drilling waste management system to treat water based mud and cuttings, oil based mud and cuttings.
3) Decanter centrifuge can be used for waste water treatment.
4) Decanter centrifuge can also be used together with chemical dosing system as a dewatering unit.
For different applications the layout of the decanter centrifuge is different.
1) When used in the solids control system for barite recovery, it is usually put on the tank top after other solids control equipment, like shale shaker, desander, desilter, vacuum degasser, etc…
2) When used together with chemical dosing system as a dewatering unit, it is normally put insides the chemical system container, or on the top of the container. Also it may be put outside.
3) The most normal way is to put on a telescopic skid. The skid will be higher than the mud tanks. In this case, the clean mud from decanter centrifuge will be flow to mud tanks or next process under gravity. It can save a transfer pump and storage tank.
GN portable design telescopic skid is welcomed by the oil and gas drilling field. It is compact design with small footprint. It is accordance with HSE requirement, and contains ladders, guardrails, walkways. The positive pressurized VFD control and the screw feeding pump for the decanter centrifuge can both be mounted on the skid under the centrifuge. They do not need to be removed during shipment.
When the telescopic skid need to be shipped from one side to another, you only need to reduce the height by pin, other accessories can all be mounted on the skid. And the walkways are designed to suits both high height and the low height.
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Published: 27 March 2016
Water well drilling rigs are widely used for oil and gas drilling field, for normal lifetime and for industries.
Take the oil and gas drilling for example, water is the necessary material for drilling activities. Water is request to for drilling fluids mixing, for tank cleaning, for flush, for equalizing well pressure, etc… There will be different people involved for drilling activities; Water is also the essential material for the rig peoples. The rig sites are normally far away from human area. Well well drilling is the most fast and most convenient way for the water supply.
GN Solids Control engineer just came back from a middle east job site. He finished the first time commissioning and training of 1 set GNMS-500G water well drilling mud system. The 500GPM mud system is design and made for their oil rigs.
The system is composed of a single deck linear motion shale shaker, a hydro cyclone desilter separator, a drilling fluids mixing system, feeding pump, mixing pump, the explosion proof electric control system, trailer skid mud tank and electrical lighting systems.
For a compact design, GN put the feeding pump for hydro cyclone desilter, and the mud mixing pump on the skid.
In order to get a bigger usable capacity, GN designed the mud tank with 3 m width. Not only in China, but also in many other countries, 3 m is the normal width limitation for inland shipment. GN make all the sand gates build-in type. In this case, it will not over the tank width scope.
Clients request a mobile unit for fast movement. In order to save the cost of clients, GN Solids Control recommend client to source trailer skid locally and buy complete mud system from GN. GN Solids Control customize the system suitable for trailer skid. There are container corner blocks at each tank corner. The tank can be out and locked on the trailer skid like a container.
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Published: 20 March 2016
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