Author: gnadmin

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.

1500 GPM Geothermal Mud Treating System for Overseas Drilling Contractor

Recently one set of 1500gpm geothermal mud recycling system are ready for shipment to overseas drilling contractor, this is a customized geothermal mud recycling system consists of the equipments as below:


1. 2 units of linear motion Shale shaker GNZS594J-SHBJ, equipped with 4 panel of composite material frame shaker screens which is compliant with API RP13C standard, it is also interchangeable with world famous brand shaker screens. High quality fiber glass to improve plastic quality and screen temperature resistant to 140 C degree, Since the composite frame is covered by plastic, it is rust resistant for long time storage up to over 5 years.Four side tension of mesh during the heat press to minimize the gap between the top screen and support screens, in a result extending the screen life.


2. 1 unit of linear motion mud cleaner GNZJ594J-D3S16NJ, it is a desander cone, desilter cone and bottom shale shaker combination unit, the bottom flow shaker model is exact same with the linear motion shale shaker, the shaker screen dimension is also same for better inventory.


3. 5 units of mud tank, including shale shaker tank, intermediate tank, suction tank, reserve tank, water tank, with proper mud agitator, centrifugal pump, jet mixing hopper, mixing pump, mud gun and mud tank accessories. The mud tank height is designed as per client’s requirement.


Except for geothermal mud treating system, as one of the professional solids control system and equipments manufacturer in China, GN solids control also design and produce drilling rig solids control system and HDD mud recycling system, we can produce a comprehensive line of solids control equipments, like shale shaker, mud cleaner, desander, desilter, vacuum degasser, decanter centrifuge, mud gas separator, etc. If you need a drilling mud treatment solution and drilling waste treatment solution, 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.

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.

GNTBM-320 TBM Slurry Separation Plant for China Client

Recently one set of GNTBM-320 TBM Slurry Separation Plant are ready for delivery to China client. The technical parameter is as below:
1. Total power :67KW
2. General treating capacity; 320m3/h (excluding clay layer usage conditions)


3. Basic structure, consists of double deck linear motion shale shaker, hydrocyclones, 55KW slurry pump, 24m3 treatment tank, electric control system, guardrails, pipelines, etc.
The double deck shale shaker with screening area total 8.64m2, the top layer screen opening is 0.5mm, the bottom layer screen opening is 3mm. The vibration motor drived the shale shaker is 2ea of 6KW, with frequency 16HZ. The hydrocyclone installed on top of the double deck shale shaker material is polyurethane inside, outside covered with casting steel, the single cone capacity is 80~180m3/h, the pressure required is 0.06 ~0.2Mpa.
4. Applicable environmental conditions :
Ambient temperature: -18 ¬°C ~+40°C
Altitude height: ≤1000m
Ambient humidity:≤90% (+20°C)
Non explosion proof


5. The equipment can adapt to weather conditions containing 5% sand and dust, as well as rain, snow, fog, etc.Suitable for long distance transportation such as highway, railway, and sea freight, meeting the requirements of crane loading and unloading, and suitable for frequently movement and installation, and it is corrosion and leakage prevention.
6. The TBM slurry separation plant can meet the requirement of pipe jacking construction process.
7. The system design separation cut point is 30 microns, the solids over 30μm can be separated out by the hydrocyclone separation.
The function of the TBM slurry separation system is to pump the drilling mud to the buffer tank of the shale shaker, after separation, the coarse solids are separated out from the shale shaker, the fine solids dropped into the mud tank with the liquids.
For more information of TBM slurry separation plant, pls contact with GN solids control .