Tag: decanter centrifuge

Double Deck shale shaker and cuttings dryer for Africa drilling company

One set of double deck shale shaker and one set of vertical cuttings dryer are ready for shipment to Africa for drilling cuttings treatment system.
The double deck shale shaker will be applied as high G force drying shaker to separate the coarse solids, it can be used for both water based drilling cuttings and oil based drilling cuttings. The anti splash cover on the top to prevent the drilling mud from splashing. The top layer and bottom layer total 6pcs shaker screens are composite material frame for longer working life and better separation performance.


The vertical cuttings dryer is ideal equipment to be used for oil based drilling cuttings treatment, after treatment, the oil content on the cuttings is below 5%, the fluids will flow to an intermediate tank, then feed the fluids to decanter centrifuge for further treatment, the fine solids will be separated out by decanter centrifuge, the fluids can be reused for drilling. Before treated by decanter centrifuge, the fluids can be treated by drying shaker to reduce solids content, it will increase the decanter centrifuge treating capacity and performance, also it can prevent the centrifuge bowl from damaged by the high solids content.


GN standard drilling waste management system GNCM-40A is consist of VFD decanter centrifuge, vertical cuttings dryer, flushing pump, centrifuge feeding screw pump, fluids collection tank, skid, electric control system, accessories. The compact design with small footprint is loaded into standard container.
Except for drying shaker and vertical cuttings dryer, GN solids control also produce drilling waste treatment decanter centrifuge, including high speed decanter centrifuge, VFD decanter centrifuge, Fully Hydraulic Drive decanter centrifuge, we provide different explosion proof standard for option, IEC EX, ATEX, CNEX. For more information about high G drying shaker and vertical cuttings dryer, pls contact with GN Solids Control.

3 Phase Decanter Centrifuge for oil water separation to China ES Company

One unit of three phase decanter centrifuge is ready for delivery to China Environmental Science company for oil water separation.
The three phase decanter centrifuge working principal is as below:


The solids, oil and water with different gravity, so the generated centrifugal force is different. The solids with largest specific gravity will generate highest centrifugal force, the next is the heavy phase liquid ( water) and the light phase liquid (oil). Due to different centrifugal force, one solid layer and two liquid layer are formed. The solids to be pushed out by the screw, the liquids are separated out from their respective nozzles, the solids oil water separation can be achieved.


GN three phase decanter centrifuge is designed for oil water solids separation under 24 hours continuous working and easy operation & maintenance. The main components including centrifuge driving system, decanter bowl, screw inside the bow, centrifuge skid and VFD control panel.
The 3 phase decanter centrifuge is installed on the mud tank or on the telescopic skid with feeding pump, it has been widely used for oil sludge treatment system. The oil sludge can not be feed into the three phase decanter centrifuge directly, the sludge vacuum pump will pick up the oil sludge from waste pit to the pre-mixing tank, with chemical jetting, heating and agitating, the submersible slurry pump will suck from the pre-mixing tank to shale shaker module to separate the coarse solids and reduce solids content, the fluids discharged from shale shaker will be feed to two phase decanter centrifuge with proper chemicals for fine solids separation. The liquid treated by the 2 phase decanter centrifuge can be feed to three phase decanter centrifuge for oil water separation by adding proper chemicals.
For more information of three phase centrifuge, pls contact with GN solids control.

5 sets of Trailer Mounted Mud Tank for Middle East Client

Recently 5 sets of trailer mounted mud tank are ready for shipment to Middle East client. The design is customized for mobility of mud tank system when the user need to move it from one site to another in short time. The advantages of trailer mounted mud tanks including:
1. Easy and convenient movement, fast deployment


2. High quality raw material is applied for better durability and reliability, especially in high ambient temperature area and harsh conditions.
3. Automation system is adopted to monitor and control the mud recycling system better
4. GN can provide complete mud recycling system and equipments, electrical control system and other customized requirement for our client, we can produce a full range of solids control equipments, such as linear motion shale shaker, mud cleaner, desander, desilter, decanter centrifuge in different sizes. This will help the client to get an integral solution for mud cleaning and recycling.


5. It is compatible with different types drilling fluids, as water based drilling fluids, oil based drilling fluids, and suitable for different drilling conditions.
6. Cost saving, high efficiency, easy operation, small footprint
7. With the mud recycling system operation, the drilling waste can be reduced extremely, the used drilling fluids will be reused sufficiently, the coarse solids will be separated out to keep the mud specific in proper way, reduce the impact on the environment.


Except for the trailer mounted mud tank system, GN solids control also design and produce customized oilfield skid mounted mud tank system and drilling rig solids control systems, we can also provide separate solids control equipments and shaker screens, like shale shaker, mud cleaner, desander, desilter, vacuum degasser, mud agitator, mud gun, centrifugal pump, decanter centrifuge, mixing hopper, various transfer pumps, drilling waste management equipments. For more information, pls contact with GN solids control.

22inch Big Bowl Decanter Centrifuges for Asia Oilfield Service Company

Recently one batch of 22 inch big bowl decanter centrifuges ready for delivery to Asia oilfield service company. It is used to treat different types drilling fluids for the drilling rig.


The features of GN 22 inch big bowl decanter centrifuge is as below:
1. Adjustable speed VFD control panel drived centrifuge for convenient operation, we have ATEX, IEC EX zone 1 and zone 2 for option based on different client’s requirement.
As ambient temperature, self cooling system or air conditioner can be applied for VFD cooling.


2. Big bowl big volume, 22 inch bowl diameter, 71 inch bowl length, with max speed up to 3000rpm, max G force is up to 2719G. The max treating capacity is up to 500gpm for big volume treatment.
3. The bowl and screw core shaft are made of duplex stainless steel SS2205 by centrifugal casting, better than SS316L and SS304. The other parts are all made of stainless steel for better corrosion resistance.
4. The screw propeller is protected by tungsten carbide tiles which is replaceable once damaged.
5. The fluids distribution port and solids discharge port is protected by replaceable tungsten carbide alloy.
6. The planetary gear box with big transmission torque, compact design, reliable performance and easy maintenance.
7. The bearing lubrication system with good performance to lubricate and cool the SKF brnd bearing to improve the service life of bearings.
The application of big bowl big volume decanter centrifuge including oil & gas drilling solids control system, drilling cuttings treatment system, oil sludge treatment system, construction engineering mud treatment, mining slurry separation and dewatering unit.


Except for 22 inch big bowl decanter centrifuge, GN solids control can also produce 9 inch mini centrifuge, 14 inch bowl decanter centrifuge, 18 inch bowl decanter centrifuge, 30 inch bowl decanter centrifuge for different applications.

Drilling Rig Solids control equipments spare parts manufacturer in China

As a professional drilling rig solids control equipments manufacturer in China, we provide complete spare parts for our OEM equipments, and also replacement shaker screens for other brand shale shaker. Recently one batch of drilling rig solids control equipments spare parts are ready for maintenance of our solids control equipments. The list of spare parts including:
For Vertical cuttings dryer:


Different opening screen basket with scraper, Bell jar assembly with scraper, Rotor assembly with flights, Gearbox, pulley of power unit, air knife components, belt
The maintenance of the centralized lubrication system of GN vertical cuttings dryer is very easy, the user need to clean the oil tank regularly. If found abnormal, remove the screws at the four corners of the oil tank to separate the oil tank from others, tighten the 4 screws of the upper cover and oil tank. The mud discharged through the screen basket gap contains solid particles, which will damage the screen basket. When the solids layer increased to specific gap, the screen basket need to be replaced, otherwise the drilling cuttings dryness can not meet the technical requirement. Regularly check the wear of screen basket scraper, and adjust the gap between the scraper and the screen basket to keep the gap in a normal range.
For decanter centrifuge：


Hydraulic coupler assembly, Bearing block
For screw conveyor:
Variator, auger drive, hanger shaft


For screw pump:
Stator, rotor, universal joint, gearbox , variable speed gearbox
For VFD control panel, electrical parts and components, such as drives, PLC, pressure gauge, HMI Display unit, etc.
Except for these spare parts, we also produce replacement shaker screens for different brands shale shaker from API 20 to API 325 which comply with API RP 13C standard. If you need solids control spare parts and shaker screens, pls contact GN solids control.