Category: decanter centrifuge

Drilling Mud Recycling Unit and Hydraulic Centrifuge for Overseas Client

Recently one set of 500 gpm mud recycling system for trenchless mud treatment and one set of diamond core drilling hydraulic drive solids removal unit for overseas client.
The 500 gpm mud recycling system consists of shale shaker, mud cleaner, desander feeding pump, desilter feeding pump, 20ft container size mud tank, 20ft container lifting frame, mud tank accessories and electric control system. It is a customized design 500gpm mud recycling system for our client, we also have standard 200gpm, 400gpm. 600gpm, 800gpm, 1000gpm mud recycling system for HDD mud cleaning, mixing, recycling.


The core drilling hydraulic centrifuge system is solids liquid separation of waste water for diamond core drilling. The features of the core drilling hydraulic centrifuge system including compact design, modular design, lightweight to meet the requirement for helicopter hoisting, can operate without electricity power supply. The technical configuration is as below:
1. GNLW223D-FHD hydraulic centrifuge
2. Feeding and discharge pump: 2X FHD pump
3. Treating capacity: 50~130L/Min
4. Separation cut point: 2~5 Microns
5. Driving method：Diesel + Hydraulic drive
6. Mud tank volume： 2m3
7. Total power consumption: 40KW
8. Mixing hopper
The treatment process is as below:


The mud is pumped into the sedimentation bin of the buffer tank, so that the large particle sedimentation. After that, the mud overflow to the slurry supply bin of the feeding tank, the pumped by the #1 slurry pump to the hydraulic centrifuge for ultrafine solids separation. If without the sedimentation process, one unit of mini shale shaker will be used to separate the coarse solids from the mud. The mud treated by the hydraulic centrifuge flows into discharge tank and transferred to drilling machine by No.2 transfer pump, the treated clean water can be reused to prepare for new drilling fluids and used by the core drilling for cost saving.

Vertical Cuttings Dryer and Centrifuge Unit for Africa Waste Management Company

Recently one set of vertical cuttings dryer package and one set of decanter centrifuge unit with screw conveyors are ready for shipment to Africa drilling waste management company. The technical configuration of the customized drilling cuttings treatment system is as below:


1. GNCD930G vertical cuttings dryer with separate skid, the flushing pump is installed on the skid for flushing the screen basket during operation, we have 250 microns, 350 microns and 500 microns opening screen basket for option for client’s different requirement. Additionally, soft starter, VFD control is available for the main motor drive.


2. GNLW363D-VFD decanter centrifuge with feeding pump installed on the separate telescopic skid, the VFD control panel is also installed on the skid for convenient operation. The whole package is suitable for standard container loading when the telescopic skid lowered to the lowest hole. During transportation, the guardrail and walkway, stair can be foldable and attached with the skid for convenient transportation.
3. The screw conveyor is used to collect the drilling cuttings from primary solids control shale shaker, then transfer to vertical cuttings dryer; it can be also used to collect the discharged solids from vertical cuttings dryer and transfer to skips. The user can make the auger support at site according to the installation requirement.
If the drilling cuttings have been storage in the waste pit at rig site, the sludge vacuum pump can be used to suck the drilling waste from waste pit and feeding to vertical cuttings dryer, the horizontal transfer distance is up to 500 ~1000 meters, it is specially suitable for transferring drilling waste with high solids content and high viscosity. Except for drilling waste, it has been widely used for oil sludge transfer, industrial waste transfer, sand transfer and industrial waste transfer.
If you need a customized solution for drilling waste treatment system, pls contact with GN solids contrl.

GN Solids to Exhibit at Beijing 2025 CIPPE Oil Equipment Exhibition

GN solids control will attend Beijing 2025 CIPPE Oil Equipment Exhibition. The exhibition information is as below:


Exhibition Name: The 25th China International Petroleum & Petrochemical Technology and Equipment Exhibition
Exhibition date：March 26-28,2025
Exhibition location：Beijing, New China International Exhibition Center
GN Stand number：E2168

What products will be showed at CIPPE exhibition?
1. The 4th generation Fully Hydraulic Drive decanter centrifuge, GN produced fully hydraulic drive decanter centrifuge have been widely used for onshore and offshore drilling fluids treatment. GN FHD decanter centrifuge can be used in high temperature for heavy duty mud with flexible bowl and differential speed. We can design and produce lifting frame and lifting pad which is comply with DNV 2.7/1 certificate to meet the offshore lifting requirement. ATEX explosion proof standard will be applied for class 1 div. 1 application. The hydraulic bowl and scroll drive system drives both the hydraulic motor ROTODIFF and the bowl of a decanter centrifuge from hydraulic pump unit by two hydraulic oil circuits. The bowl material is made of duplex stainless steel SS2304 from centrifugal casting, the screw material is stainless steel 304, and the screw propeller is protected by tungsten carbide tiles for longer working life.


2. The lastest K Version brand new offshore oil and gas drilling fluids shale shaker
3. The lastest G version brand new three phase decanter centrifuge
4. Other solids control equipments: vertical cuttings dryer, big bowl decanter centrifuge, mud cleaner, screw conveyor, solids transfer vacuum pump
5. Drilling fluids shale shaker screens
We look forward to meeting you at CIPPE 2025 and having an in-depth discussion on the future development of the solids control industry. And we are just 1.5 hours drive from the exhibition hall, welcome to visit us after CIPPE.
For more information about the CIPPE Exhibition, pls check website https://en.cippe.com.cn/.

22inch big bowl decanter centrifuges unit for Kuwait Oil Sludge Treatment Company

As a manufacturer of decanter centrifuge unit manufacturer in China, GN solids control can design and produce different size decanter centrifuge, including 9 inch centrifuge, 14 inch centrifuge, 18 inch centrifuge, 22 inch big bowl decanter centrifuge, 25 inch centrifuge, 30 inch decanter centrifuge. Except for two phase separation decanter centrifuge, GN solids also produce 3 phase separation decanter centrifuge for solids, oil and water. The decanter centrifuge applications including drilling rig solids control system, drilling cuttings treatment system, oil sludge treatment system, dewatering unit, waste water treatment system, mining tailings treatment and construction slurry cleaning, etc.


We have 2 models of 22 inch big bowl decanter centrifuge, GNLW553-VFD and GNLW554-VFD. The bowl diameter is 22 inch (550mm), The bowl length is 71 inch (1800mm) or 91 inch (2310mm). The designed capacity is 500gpm, the typical capacity is 400gpm. The max bowl speed is 3000rpm, the typical bowl speed is 2500rpm, the max G force is 2719G, the typical G force is 1888G. The bowl speed and differential speed can be adjustable by VFD control panel operation.
The oil sludge is a mixture of oil, water, and solid contaminants that can result from oil spills, tank cleaning, or oil production processes. Proper treatment and disposal of oil sludge are critical to mitigate environmental damage and recover valuable resources.


GN oil sludge treatment system working process is as below:
The vacuum pump pick up the oil sludge or contaminated soil from waste pit and discharge to pre-mixing tank, by adding chemicals, heating and agitating in the pre-mixing tank to improve the separation efficiency of the further separation equipments. After screening module, the treated fluids will be feed to big bowl decanter centrifuge to separate to solids and liquids ( oil water mixture), working with chemical dosing unit and heating if need.

3 Sets 1500HP Drilling Rig Mud Tank System for Drilling Company

Recently 3 sets of 1500HP drilling rig mud tank system are ready for shipment to drilling company. Each set of 1500HP drilling rig mud tank system consists of the equipments list as below:


1. Trailer mounted Mud tank 7 sets in customized dimension, with mud tank accessories
2. 3 sets of GNZS594K 4 panel linear motion shale shaker, each shale shaker installed with 4pcs of 585x1165mm composite material frame shaker screens. The 3 sets shale shaker are installed on a triple shaker skid with box type possum belly for convenient transportation and lifting.
3. 1 set of GNZCQ270B vacuum degasser
4. 1 set of GNZJ752K-M2SK desander mud cleaner, installed with bottom shaker composite material shaker screens, which is same with desilter mud cleaner shaker screen for inventory.
5. 1 set of GNZJ752K-M12NK desilter mud cleaner, the treating capacity is 1000gpm.
6. 1 set of VFD decanter centrifuge GNLW452DS-VFD with feeding pump, the main motor is 60HP and the back drive motor is 15HP, the variable speed can be adjusted for different G force requirement during drilling. It is a 18” inch bowl decanter centrifuge, GN also produce
9 inch bowl centrifuge, 14 inch bowl centrifuge, 22 inch big bowl decanter centrifuge, 25 inch bowl decanter centrifuge and 30 inch bowl decanter centrifuge.


7. Centrifugal pump and mud agitator, mud gun , mixing hopper, including desander desilter feeding pump, trip pump, mixing pump, super charging pump, etc.
8. Explosion proof and flame proof lightings and electric control system
Except for 1500HP oil drilling rig mud tank system, GN solids control also design and produce HDD & CBM & Geothermal mud recycling system, TBM & Piling desander unit, drilling waste management system, oil sludge treatment system and waste water dewatering system, etc. Pls contact with GN solids sales for a customized solution.