vertical cuttings dryer

GN solids control shipped several units of vertical cuttings dryer and decanter centrifuge to Russia with customized painting color. As the expert of solids control & drilling waste management in China, we have exported a lot of vertical cuttings dryer and decanter centrifuges to Russia area.


The vertical cuttings dryer and decanter centrifuge is the major equipment of zero discharge system for oil based drilling cuttings treatment. The working process is as below:
The screw conveyor collect the oil based drilling cuttings from the shale shaker of solids control system and discharged to 2# screw conveyor, the 2# screw conveyor is installed slantly and transfer to vertical cuttings dryer top open feeding port. The vertical cuttings dryer dry the drilled solids from oil based cuttings by centrifugal force. The screen basket traps the fluids and accelebrates them up 900rpm and G force is up to 420G. The fluids is discharged from the liquid discharged port and flow to intermediate tank, the feed pump transfer the liquids to decanter centrifuge to separate fine solids, the cut point is 2~5 microns. The clean fluids is recovered by the catch tank or connect the pipeline back to solids control system for reuse.


VFD decanter centrifuge should be applied for drilling waste management system, which with 3 motor frequency VFD, main motor, back drive motor, pump motor. We use ABB brand inverter for easy outsourcing when need to be replaced, all the other electrical components are also with ABB, Siemens, Schneider with good quality. Our VFD control panel is positive pressurized VFD control panel with PLC smart control and HMI interface. The screw pump as centrifuge feeding pump flow rate can be adjusted by changing the motor speed.
We also produce complete drilling waste management system with our standard compact design, for cold area, we can install the system inside the container.

Recently 2 sets of oil based drilling cuttings treatment system are ready for shipment to Russia. Same with previous order, the vertical cuttings dryer and decanter centrifuges are installed in the container with insulation layer to keep the equipments warm in cold weather in China.
The technical configuration is as below:

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1) Vertical cuttings dryer for oil based drilling cuttings treatment, the oil on the discharged cuttings is below 5%, the client can disposal the solids directly or send to TDU unit according to the environmental protection regulations in their country. The treated fluids will flow to the intermediate tank, the feeding pump of decanter centrifuge will feed the fluids to decanter centrifuge to separate the fine solids. The vertical cutting dryer is installed on the frame inside the container.


2) The waste decanter centrifuge will separate the solids cut point 2~5 microns from the fluids, the discharged fluids can be reused by drilling and prepare for new fluids.
3) Positive Displacement pump is as the feeding pump of decanter centrifuge and installed in the container.
4) The 40ft standard container with windows, doors and top open hole for easy replacement of the screen basket which is wear parts of the vertical cuttings dryer. The insulation layer attached with container is to keep the equipments working well in cold weather in Winter, it is special design for Russia clients.


Why use GN vertical cuttings dryer system?
As per the feedback from our client who has used GN drilling waste managements system, the vertical cuttings dryer system can reduce the drilling waste volume effectively, and the recovered drilling fluids can be reused, the client can save cost and time to transfer the drilling cuttings to third party facility for treatment. And more and more countries forbid to dig waste pit at rig site for environmental protection.

2 sets of vertical cuttings dryer system are shipped to domestic client. GNCM-40B standard drilling waste management system configuration is as below:


1) Vertical cuttings dryer GNCD930E: this is the ideal equipment to treat the oil based drilling waste or Synthetic based drilling cuttings, the oil on the separation cuttings is below 5%, which can meet the disposal limit for most countries, if the client need it to be lower, TDU can be applied.


2) Decanter centrifuge GNLW363C-VFD: This is the best sold model decanter centrifuges among all the series. The decanter centrifuge max speed is up to 3900rpm, the normal speed is 3200rpm to treat the low gravity solids. The max G force is up to 3062G, the typical G force is 2062G, the cut point is 2 ~5 microns. Except for GNLW363C-VFD decanter centrifuge with 14 inch bowl diameter, we can also produce GNLW364EP-VFD to treat the waste water when the water clarity is required strictly. If the client need bigger treating capacity, we will suggest 18 inch, 22 inch, 30 inch centrifuge bowl.
3) Submersible slurry pump GN50YZ20-18A as feeding pump of decanter centrifuge, this is not the best option pump to feed the fluids to the decanter centrifuge, but it is vertically installed, it can save space on the mud tank compared with screw pump, also the maintenance cost is cheaper compared with screw pump. The screw pump works steadily to feed the decanter centrifuge, the flow rate can be adjusted by VFD control panel by changing the frequency.
4) 2 units of Mud agitator installed on the mud tank to mix the drilling fluids
5) Mud tank skid, the decanter centrifuge are installed on it, the vertical cuttings dryer is installed on the frame. The complete skid for convenient transportation.
For more information, pls contact GN solids sales.

GN solids control just come back from CIPPE 2019 oil exhibition in Beijing, China. We showed our advanced technology and equipments at the CIPPE oil show. Below is the photos taken in our stand.


1) Sludge Vacuum pump: it is the ideal pump to transfer the waste cuttings, waste sludge, oil sludge, drilling mud, cement, powder material and other industrial waste.
2) High G force drying shaker with 4 panel composite material shaker screens. The screen dimension 585x1165mm, we can install the shaker screen with API mesh size from API 20 to API 325 comply with API RP13C. The G force is up to 8.0G.
3) 14 inch bowl decanter centrifuge
4) 22 inch bowl decanter centrifuge for waste water treatment and waste sludge treatment and dewatering unit, the bowl diameter is 550mm, the bowl length is 2310mm, different with the normal drilling fluids treatment centrifuge, the GNLW554 series centrifuge can treat the discharged water much cleaner, it is ideal centrifuge for the project required very clear water.
5) Oil sludge separation system : The configuration is as below:
The Premixing tank, coarse solids separation shale shaker, decanter centrifuge, three phase centrifuge, chemical dosing unit, fluids buffer tank, shaker fluids collection tank, oil tank, water tank and complete skid. The mud agitator and heating lines installed on the premixing tank.
6) Vertical cuttings dryer for oil based drilling cuttings treatment.
7) Screw conveyor to transfer drilling cuttings to vertical cuttings dryer drilling waste management system
We got a lot of inquiries and positive interests for the oil sludge treatment unit. The working video for the oil sludge treatment is as below: By using proper chemicals, we can design the customized system for different requirement. If you need to know more information, pls get the brochure from our sales engineer.
http://www.gnsolidscontrol.com/video/oil-sludge-treatment-test-unit-working-video

Recently GN solids control shipped vertical cuttings dryer, decanter centrifuge system to Russia drilling companies, they are installed inside the 40ft container to keep them warm and avoid frozen of the drilling cuttings when working in Winter.


The client use the vertical cuttings dryer system for oil based drilling cuttings, when they use water based drilling cuttings, we will use different system design with high G drying shaker and decanter centrifuge, and we have standard design of pitless system for both water based mud and oil based mud ( also for SOBM), the client only need to buy one system and use them in different rig site.
The VFD decanter centrifuge GNLW363C-VFD is the most popular decanter centrifuge used for solids control system and drilling waste management system, oil sludge treatment system, dewatering system, solids water separation system and waste water treatment system. The VFD control panel is positive pressurized VFD control panel with PLC smart control and HMI interface, the inverter for main motor, back drive motor and feeding pump motor are made of ABB or Siemens brand or Schneider brand for global outsourcing.


The bearing is SKF brand, the screw  is made of stainless steel with heat treatment up to 1000 degree, the impeller is protected by tungsten carbide tiles for longer working life and easily replacement. The mud distribution port and solids discharge port are all protected by tungsten alloy and interchangebale. The bowl material is duplex stainless steel 2205 or 2304 by centrifugal casting, it is much better than SS304 and SS316.