Category: decanter centrifuge

Offshore Drilling Mud Centrifuge and Cuttings Dryer to Asia Oilfield Service Company

Recently one batch of offshore drilling mud centrifuge and cuttings dryer are ready for delivery to Asia oilfield service company. The equipments list is as below：


1. 6 units of GNLW363D-FHD Fully Hydraulic Drive decanter centrifuge
2. 2 units of GNCD930G vertical cuttings dryer with skid


3. 8 units of variable speed screw pump, 2 units as flushing pump for vertical cuttings dryer, 6 units as feeding pump of fully hydraulic drive decanter centrifuge
The features of GNLW363D-FHD Fully Hydraulic Drive decanter centrifuge including:


1. ATEX motor and control panel, the cable meets the requirements for use in marine environments.
2. The hydraulic bowl and scroll drive system drived both the hydraulic motor ROTODIFF and the bowl of the decanter centrifuge from hydraulic pump unit by two hydraulic oil circuits.
3. The centrifuge can be used for high temperature ambient up to 55 C degree for heavy mud, suitable for zone 1 and zone 2 application.
4. VISCOTHERM Fully hydraulic drive system
5. Max speed is up to 3600rpm, max G force is up to 2610G.
6. The bowl material is duplex stainless steel SS2304 from centrifugal casting, the screw material is stainless steel 304.
7. The solids discharge port and fluids distribution port is protected by tungsten carbide inserts, the screw is protected by tungsten carbide tiles
8. The bearing is SKF brand
During centrifuge working process, the bowl speed ,differential speed, fluids pool depth, feed rate, flocculant consumption can be adjusted according to actual situation. The higher bowl speed, the drier solids discharge, more clear liquid effluent to be get. The lower differential speed, the longer time of the solids phase stay inside the bowl, so the discharged solids will be drier.
If you need fully hydraulic drive centrifuge, vertical cuttings dryer, 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.

GN Vacuum Degasser and Pumps for International Drilling Company

Recently one batch of GN solids control equipments are ready for shipment for international drilling company, including jet mud mixer, vacuum degasser, vacuum pump, decanter centrifuge.


Jet mud mixer is a jet shearing unit combined with mixing hopper, mixing pump, pipeline and accessories, skid on one skid, it can be used to mix drilling fluids for solids control system, liquid mud plant and mud recycling system. We can also provide customized mud mixing unit based on the materials to be mixed.


The sludge vacuum pump is a pneumatic pump which suck the material by 100% air operation without electricity power, then converts to positive pressure for discharging. This pump can be used to transfer material with high gravity and high density, solids content is up to 80%, the transfer solids size maximum 50mm or 75mm, The pump structure is simple and compact, the transfer distance is up to 500 ~1000m. We have 3 models with different flow rate, 2 models are movable, the other one is fixed with skid.


Vacuum degasser is used after primary shale shaker, which can effectively remove the gas from as cut mud, to ensure the proper mud weight. GN vacuum degasser is self contained type vacuum degasser, no need extra jetting pump, also it works as a big agitator to agitating the drilling mud. We have 2 models vacuum degasser for option, one is 270m3/h, the other one is 360m3/h.


Decanter centrifuge, GN solids control can produce 2 phase decanter centrifuge and 3 phase decanter centrifuge, for 2 phase separation decanter centrifuge, we can produce different bowl diameter with different treating capacity, including 9 inch, 14 inch, 18 inch, 22 inch, 30 inch. The most popular model decanter centrifuge is GNLW363D ,GNLW363D-VFD.
For more information about solids control equipments, pls contact with GN solids control.

1500HP Drilling Rig Solids Control System for Africa Project

Recently one package of 1500HP drilling rig solids control system are ready for delivery to Africa project. The technical configuration is as below:


1. Solids control shale shaker GNZS594J-SHBJ, 3 units, each unit with 4 panel shaker screen which is with composite material frame and stainless steel wire mesh 2 or 3 layers by 4 sides pretension.
2. Centrifugal degasser GNZCQ-1200, 1 unit
3. Desander unit GNZJ591J-M2SF, 1 unit , with 2 ea of 10 inch desander cone, the general treating capacity is up to 1000gpm of drilling fluids.
4. Desilter unit GNZJ591J-M16NF, 1 unit, with 16 ea of 4 inch desilter cone, the total treating capacity is up to 1500gpm of drilling mud.


5. Centrifugal pump in different size for different applications, including 5 units of GNSB8x6-14J (75KW) centrifugal pump, 3 units of GNSB8x6-13J (55KW) centrifugal pump, 5 units of GNSB4x3-12J (15KW) centrifugal pump and shear pump GNJBQ6*5-750 (75KW), 3 units of mixing hopper (H)JM-200, these centrifugal pump can be used as transfer pump, trip pump, mixing pump, charging pump, feeding pump.


6. High speed decanter centrifuge GNLW363D-GP, 1 unit, to separate the fine solids from drilling fluids and keep it balancing. The centrifuge is 14 inch bowl diameter with 50 inch bowl length, the max speed is up to 3600rpm and the max G force is 3063G, the separation cut point is 2~ 5microns, if need to separate more fine solids, chemical dosing unit can be used together with the centrifuge by adding chemicals in the inlet tube.
7. Mud agitators installed on the mud tank for drilling mud agitating and mixing, including 7 units of 20HP mud agitator, 2 units of 15HP mud agitator, 1 unit of 7.5HP mud agitator.
8, Customized mud tank system, including active tank, intermediate tank, suction tank, mixing tank,, reserve tank, trip tank,etc.