Category: drilling waste management

IECEX Explosion Proof VFD Decanter Centrifuge for Middle East Client

One batch of IEC explosion proof VFD decanter centrifuge are ready for shipment to Middle East, including VFD decanter centrifuge, VFD control panel, feeding pump and telescopic skid package.


Except for VFD decanter centrifuge, GN solids control also produce high speed decanter centrifuge, middle speed decanter centrifuge and fully hydraulic drive decanter centrifuge. Not only two phase decanter centrifuge, we also produce three phase decanter centrifuge. It can be applied for oil and gas drilling solids control system and drilling waste management system, oil sludge treatment system, also it can be used for HDD tailing slurry separation, mining slurry separation, construction engineering mud cleaning and other waste water treatment.
GN decanter centrifuge features including:


1. The bowl main parts are made by centrifugal casting and made of duplex stainless steel SS2304, superior to the performance of SS 314 and SS316.
2. The main material of the screw assy is duplex stainless steel SS2304, superior to the performance of SS314 and SS316L.
3. The screw propeller is protected by tungsten carbide tiles and it is replaceable, the working life is much longer than hard facing wear resistant coating layer.
4. The slag discharge port is protected by replaceable hard alloy sleeve.
5. The liquid outlet is also protected by replaceable hard alloy sleeve.
6. The SKF high quality bearing ensure the reliable operation and long service life.
7. The bearing lubrication system is applied for big model decanter centrifuges, such as 22 inch, 30 inch bowl diameter decanter centrifuge, it can meet the requirement of heavy load and high speed operation, which can improve the service life of bearings.
8. Planetary gearbox with large transmission torque, smaller size, stable operation and easy maintenance.
If you need a good performance and high quality VFD decanter centrifuge, pls contact with GN solids control.

2 Sets GNOST-15 Oil Sludge Treatment System for Asia Customer

Recently 2 sets of GNOST-15 Oil Sludge Treatment System are ready for shipment to Asia customer. Each set of GNOST-15 Oil Sludge Treatment System including the components as below:


1. Feeding pump module, to pick up the oil sludge from waste pit and transfer to pre-mixing tank
2. Pre-mixing tank module, the function is to diluting, washing, heating and mixing of the oil sludge, so that the solids can be separated from the liquids in the further process of shale shaker, decanter centrifuge and three phase decanter centrifuge.


3. Coarse shale shaker separation module, to separate the coarse solids and reduce the solids content of the oil sludge, to protect the further decanter centrifuge, if the solids content is very high, the decanter centrifuge screw will be damaged and blocked easily.
4. GNLW-554 two phase decanter centrifuge module, the fine solids can be separated out from the decanter centrifuge by adding chemicals by chemical dosing unit
5. GNLWS-554 three phase separation decanter centrifuge module, to separate the fine solids, water and oil. The recovered oil can be reused or to be sold, the water can be reused in the circulation system or sent to waste water treatment facility, the solids discharged from shale shaker, two phase decanter centrifuge and three phase decanter centrifuge will be collected and sent to TDU for final treatment.


6. Chemical dosing unit module, to add chemicals in pre-mixing tank and 2 phase decanter centrifuge to improve the separation efficiency
7. Steam generator module, to provide hot steam to pre-mixing tank heating line , shale shaker separation tank module heating line, two phase decanter centrifuge tank heating line. There are electrical driven steam generator and diesel driven steam generator for option.
To get a customized proposal of the oil sludge treatment system, pls contact with GN solids sales.

Two Sets GN Container-type Cuttings Dryer Systems for Overseas Client

2 sets of containerized vertical cuttings dryer system are ready for shipment to overseas client. The technical configuration is as below:
1. Vertical cuttings dryer GNCD930G-GP, The rotor flights is hard facing to HRC65 for longer working life, the flights and rotor assembly is individually balanced, which is convenient for future replacement, individual oil lubrication system with automatic alarm for pressure limit.


2. Intermediate fluids collection box 1.5x2x1.2m, the fluids can be transferred to decanter centrifuge for further separation of the fine solids, the final treated fluids can be reused for drilling rig or used to prepare for new drilling fluids. The fluids can be also sent to final disposal treatment by adding chemicals to get pure water and dry solids for final disposal.


3. Screw pump as flushing pump of vertical cuttings dryer, Netzsch brand pump with Germany Brand Nord gearbox, fluids touch parts are made of Wear-resisting alloy material.


4. All of the equipments are installed inside standard container with customized decoration, such as insulation design for working in cold environment, doors and windows, open holes for screw conveyor, lightings, etc. The benefits for the customized containerized cuttings dryer system including: convenient transportation, keep the system warm in winter cold temperature, convenient operation and maintenance.


5. Screw conveyor to collect the discharged solids from the vertical cuttings dryer and transfer the cuttings box automatically, with proper auger support. GN screw conveyor with standard length for each section 12 ft, the client can select proposal sections for different transfer length as 12 ft, 24 ft, 36 ft, 48 ft. GN solids control can produce different size screw conveyor including 10 inch, 12 inch, 14 inch, 16 inch, 18 inch diameter screw conveyor with different flow rate and drived motor. We have fixed speed and variable speed augers for option.

GN Solids at CIPPE 2025 Beijing: Cutting-Edge Solid Control Solutions Redefine Industry Standards

Last week GN solids control finished CIPPE 2025 exhibition in Beijing successfully. As a manufacturer of drilling fluid solids control and drilling waste management solutions, showcased its innovative technologies at CIPPE 2025 in Beijing. The exhibition CIPPE , one of the largest oil and gas exhibitions in Asia, provided an excellent platform for manufacturers and users to highlight its advanced shale shakers, decanter centrifuges, and drilling waste management systems.


The exhibition details 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


Key Highlights of GN’s Exhibition at CIPPE 2025:
1. Lastest Generation Shale Shakers – double deck shale shaker with 6 panel 585×1165 mm shaker screens, last panel with collection pan of vacuum unit for future installation of vacuum screen unit conveniently, top screen as coarse solids separation, the bottom screen as fine solids separation.


2. Fully Hydraulic drive Decanter Centrifuges –Viscotherm and ROTODIFF® from Switzerland for centrifuge hydraulic driving system, it is special to use in high temperature ambient for heavy mud with flexible bowl and differential speed. The compact design makes it easier for rig up.


3. Big bowl big volume decanter centrifuge- for big volume treatment requirement TBM and Piling project, Mining tiling separation.


4. Sludge vacuum pump – 100% air operated pump, no need electricity power, suitable for hazardous area application. The suction distance is up to 50m, discharge distance up to 500 ~1000m , the transfer solids size maximum 50mm or 75mm, sludge solids content up to 80%


GN Solids Control continues to push the boundaries of solid control technology, helping clients achieve higher productivity, regulatory compliance, and sustainability. Take this chance of CIPPE 2025 to explore how GN’s solutions can revolutionize your operations.

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.