Month: March 2018

Yesterday, the CIPPE 2018 exhibition closed successfully. GN attracted lots of visitors coming to GN booth to learn GN’s new releases. Being a manufacturer with lasting creation capacity, GN solids control has been bring new products to the show for many years. Every year, the new products take new business for GN, which is the critical factor of GN’s continuously improvement.

This year, GN showed the new developed compact skid mounted oily sludge treatment system at the show. This skid system actually is a compact three phase separation system for oil, water and solids. The processing procedure of the system includes premixing, 2-phase separation and 3-phase separation.

In premixing procedure, the oily sludge coming from the sludge pit is poured into the premixing tank. At the same time, the chemical of demulsification is added into the tank. The chemical dosing system is also one of GN main products that mainly used in dewatering system. Electrical heating line that equipped on the tank can heat the tank up to 70 to 80 Degree Celsius for better demulsification performance.

In 2-phase separation procedure, there are 2 main equipment, shale shaker and decanter centrifuge. The sludge in premixing tank would be transferred by a pipeline pump to a shaker unit for coarse solids separation. And then the liquid with fine solids will be pumped to the decantercentrifuge for fine solids separation. Large content of fine solids can be removed in this process, the liquid mixture is consisting of water, oil and little amount of solids will be collected in a buffering tank waiting for final 3-phase separation.

A disc centrifuge is the key equipment in 3-phase separation procedure. In this procedure, the oil remaining in the slurry would be recovered. This economic benefit of this system is to recover as much oil as possible in the sludge, for final discharged environment friendly liquid and solids, further treatment would be needed. And this system is pilot unit to prove the oily sludge can be treated via this technology, once the testing result was satisfying, GN is able to provide the system with larger capacity.

This time, GN also issued the vacuum pump that is an ideal machine for transferring high solids content and high gravity sludge. Full air operation makes this unit could be safely applied in hazardous area.

Other solids control equipment like high G force drying shaker, big bowl centrifuge, centrifugal pump, and replacement shaker screens are also shown at GN’s booth. Any question or request, please don’t hesitate to contact with GN.

Decanter centrifuge is one of GN’s main products that widely used in all kinds of drilling mud recycling and waste management. This week, GN just finished the fabrication of the variable speed decanter centrifuge ordered by an India drilling contractor.
Almost all the drilling contractors request the equipment used on oilfield to be explosion proof certified for safety consideration. To meet the customers’ requirement on explosion proof standard, GN is now able to provide equipment with motors and control panel certified by China national explosion proof CNEX, IEC Ex and ATEX.

The ordered decanter centrifuge is GN’s model GNLW363C-VFD. The bowl diameter is 14 inch (360mm), bowl length and diameter ratio is around 3, which explains the model of the centrifuge. GN’s 14 inch decanter centrifuge can be used for various purposes due to the VFD design. The typical working speed of this model is 3200RPM, at this speed, the fine solids with size down to 2-5 microns could be separated out without adding additional chemicals. By reducing the speed to around 2000RPM, this unit can be used for barite recovery in solids control system.
The bowl material of this unit is duplex stainless steel 2304 which is much better than SS316L. The centrifugal casting technic makes the bow material has a better distribution feature for better balance.

This unit is equipped with temperature sensor at both bearing seats to inspect the temperature of the bearing. And a vibration sensor is installedon the base for abnormal vibration. All the sensors are used to collect information of centrifuge running and send signal to the VFD control panel. By uploading program into the VFD panel, the panel could monitor the centrifuge and trip off the unit for protection.

The VFD control panel matched to the centrifuge has 3 VFDs for main and back motors of the centrifuge and the feeding pump. Operators could set the running parameters on the HMI screen to adjusting the centrifuge running condition. GN’s VFD panel is positive pressurized explosion proof method, together with the air conditioner, the VFD panel could be used in hazardous are with very high ambient temperature.
Both the decanter centrifuge and control panel are made by GN self. For more information on GN’s decanter centrifuge and other mud recycling equipment, please feel free to contact with GN.

GN engineer came back from customer’s site in Singapore and shared the photos showing GN’s dewatering centrifuge system was running there since the beginning of this year. Client is satisfied with the performance of the system.

GN’s dewatering centrifuge system can be used in separating the ultra-fine solids from drilling mud, waste water and so on. In tunneling project, the dewatering unit is used to remove the large content solids from drilling mud to make the water recyclable as always most of the tunneling site in city has limited area to put the waste mud collection container. A high efficiency dewatering system can greatly save the cost on water consumption and increase the boring speed.

GN’s dewatering centrifuge system is mainly consisting of the decanter centrifuge and chemical flocculation unit. To consider the operation safety and comfort, GN designed to put the decanter centrifuge and the flocculation system inside the container. The centrifuge is inside the upper container. The used mud will be transferred to it via a screw pump. In the meanwhile, the flocculation slurry will be added to the centrifuge as well. The fine solid particles in the mud will be gathered and removed. Clean water will be discharged out and flow into by gravity storage container waiting for reuse. The flocculation system installed in the downstairs container has automatic chemical mixing function which is convenient for operators on site.

Before feeding the mud into the centrifuge, normally a de-sanding unit will be needed to remove the coarse solids in the mud to protect the decanter centrifuge unit. This dewatering system running in Singapore has automatic lubrication function on the centrifuge unit which will protect the bearing of the centrifuge for longtime working and less shut down for maintenance. The screw conveyor installed in the container has slid runner. Thus the conveyor can slid out of the container for discharging the sludge and slid back into the container for transportation convenience.

More information on the dewatering centrifuge system, feel free to contact with GN.

Yesterday GN shipped out some equipment for the order from Russia. All the equipment in this order are GN standard model and well accepted by clients’ operators. The order includes containerized drilling cuttings treatment system and other solids control equipment.

Cuttings treatment system is one of GN’s main systems used to treat the waste drilling cuttings discharged from primary solids control equipment. Cuttings dryer is the main equipment in the system. In GN’s design, the dryer unit is installed inside one container with feeding pump and screw conveyor for collecting the dried cuttings discharged from the dryer.

Effluence separated out of the cutting dryer will flow into the collecting tank that also installed inside the container. A mud agitator is installed on the tank for mixing the fluids to prevent the solids settlement. The container is also equipped with washing platform with clean water pipeline for operators’ convenience.

Decanter centrifuge unit would be connected with the cuttings treatment system via the hose system. The liquid in the collecting tank would be pumped to the decanter centrifuge for polishing, so that the drilling fluids could be recovered and reused. GNLW363CG could run at 3200RPM or variable speed for various applications. The 3200rpm unit is widely used for ultra fine solids separation. It is also used in dewatering unit system.

The client also ordered some shale shaker from GN. The model GNZS594E the first stage solids control equipment to remove the coarse drilling cuttings. The waste cuttings is discharged from the shale shaker, and then transferred to cuttings dryer for further treatment. GNZS594 shale shaker has 4 panels screen dimension 585x1165mm, vibration G force adjustable up to 7.5. By changing to 1.94kw vibrator, this model shale shaker could be used as high G force drying shaker for waste cutting management.
For more information, please feel free to contact with GN Solids Control.

OTC is the largest event in the world for the oil and gas industry. Every year, GN will attend the show and bring new products there. Likewise, GN team will be there again this May.

By the way, before the OTC, GN will take part the CIPPE 2018 first in Beijing from 27th to 29th March, 2018. For anybody who is not able to be Beijing can meet with GN at Houston.

Same as last year, GN will have 2 booths this year; please write down below information that will help you to GN’s booth.

Show Time & Location: 30 April – 3 May, 2018. NRG Park, Houston, Texas, USA
Booth No. 1: NRG Center 1369-1 (GN China)
Booth No. 2: NRG Arena 8000 (GN America)

For appointment with GN, please send email to sales@gnsolidscontrol.com or usa@gnsolidscontrol.com
GN’s office and warehouse in Houston can give a better support, for more information, please refer towww.gnsolidsamerica.com

GN Booth at OTC 2017

What GN will display at the show

1. Decanter Centrifuge GNLW363C – the best seller in GN’s production line. When design this model, GN choose to use the duplex stainless steel 2304 as the bowl material and centrifugal casting technology to make the bowl have a better dynamic balance. This 14 inch model is typically been used in solids control system, waste management system and dewatering system.
2. Shale Shaker GNZS594F – GN 4-panel-screen shale shaker is a widely accepted model with large screen and adjustable high G force. Patented sealing technology gives this model a better performance in preventing drilling fluids leak, which ensure the drying performance. Base on the shale shaker, the relative products mud cleaner and shaker screens will also be shown there. 
3. Sludge Pump GNSP-20A- this is a fully air driven pump that can be used in transferring high solids content and high gravity sludge. This pump is a safe pump that can be used in hazardous area. Without moving parts in the vacuum bag, the maintenance of the pump is also very convenient. GN will also show the widely used centrifugal pump at the show.

GN Shaker and Decanter Centrifuge Shown at OTC 2017

GN is looking forward to meet with all visitors at the OTC 2018.