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Mar 22

Drill Waste Management system, more often referred as DWM, is a very important unit in drilling projects, it normally contains Vertical Cuttings Dryer or called Verti-G, and a decanter centrifuge, each equipment comes with a screw pump, the one for cuttings dryer is for flushing, the one for decanter centrifuge is feeding, then the screw conveyor, to feed the cuttings to vertical cuttings dryer. The systems or equipment to Russia is normally come with containers, and the main reason is weather proof, in the horrible weather place, you got some protection. It also bring some extra bonus, i.e. easier for transportation, it is a whole unit, so easier for on site installation, less rig up / rig down time. If you are worrying about the maintainces, then we did worry when we design it, except the overhaul time will be a bit complicate which you will need bring everything out of a container, and put it back; all the other maintaince is ok. So as soon as the equipment is robust, that is not a concern.

Containerized Drill Waste Management System


Features of GN Vertical Cuttings Dryer
1. Main rotating parts flights, rotor and screen frame balanced individually for easy replacement in future
2. Flights used are hard facing to HRC65 for longer working lifetime
3. High pressure air knife prevents screen from blocking when processing high viscosity material and circled flushing system to avoid liquid channel block.
4. Oil lubrication system for with alarm for pressure limitation.
5. Main motor and oil pump motor interlocked to ensure correct start up procedure for operator.
6. VFD control available to speed ranging 0~900RPM.

Features of GN Decanter Centrifuge
* High G Force up to max 3000. Big Volume Design.
* Bowl Material Duplex Stainless Steel 2205 made from centrifugal casting.
* Conveyor Wear Surface: Tungsten carbide tiles .The life is much longer than hard surface. And all tiles is interchangeable for easy maintenance.
* Preasurized Explosiong Proof with PLC and HMI control for automatical operation.
* All the bearings for the centrifuge are SKF brand premium bearings.


Now more and more clients from Russia is using GN equipment, so do other countries. GN is a manufacturer, but also a flexible manufacturer to produce some equipment ready for client to use, and easier to use. 

written by desander desilter

Feb 28

For all the work beneath the surface, Microtunnelling, Pipe Jacking, Horizontal Directional Drilling, mud is functionally aiding on the drilling work. It helps the work efficiency and saves the money of buying extra chemicals. Both eventually increase the contractors benefit.

Features of GN Mud Recycling Equipments

* Complete line Mud System: GNMS-200GPM / GNMS-350GPM / GNMS-500 GPM / GNMS-1000GPM / GN1500 GPM Self-Contained Mud Recycling System.

* Cost Effective Equipments integration:Complete drilling mud equipments from a single source-GN Solids Control Factory.

* Fast moved compact system:Small footprint design with fast connection for removable parts and most parts fixed while traveling meet transport regulation.

* Assured customer service:We can send our experienced engineers for installation,and training up customer engineers.

* Mud Tanks Flexible Options:Skid Mounted or Trailer Mounted or Hydraulic Jack Up mud recycling Tanks available for your options.

written by desander desilter

Feb 26

GN Solids Control participated the PetroTech 2019 in India two weeks ago with great success. Many customers who have dealt with GN came to GN booth to talk about the order in process and future requirements. Some other visitors who came to GN booth and showed great interesting in GN technology and discussed with GN sales team for opportunity of cooperation.

GN showed below equipment and parts at the exhibition.

  1. GNZS752 shale shaker is with two panel shaker screens. The shaker is the first stage solids control equipment for coarse cuttings removing from drilling fluids. GN is also able to manufacture the shale shaker with 3-panel and 4-panel shaker screen with larger treating capacity.
  2. Shaker screen is now one of GN main products due to it is a consumable parts for mud recycling. GN set up own factory for fabrication of screen for better quality control and cost saving so that to provide customer with reliable and cost competitive products. GN is able to supply replacement screens for almost all popular brand shakers.
  3. GN also showed the transferring pump at the exhibition. Sand pump is widely used in mud recycling system for feeding to cyclone unit and for mud mixing. GN new developed solid vacuum pump is especially for high solid content sludge transferring with fully pneumatic driving system for safety operation in hazardous area.
  4. Many visitors showed interesting at GN oil sludge treatment system that can be used to treat the oily sludge coming from drilling waste, refinery plant waste and oil storage tank bottom remaining. GN makes the oil sludge treatment system modularized with premixing skid, coarse solids separation skid, fine solids separation skid and 3-Phase separation skid for valuable oil recycling and waste discharge reducing. Visitors stop by GN booth and watched the oil sludge treatment system working video.

For more information, please feel free to contact with GN Solids Control.

written by desander desilter

Feb 17

Show Time: March 27-29, 2019
Show Location: New China International Exhibition Center, Beijing (No.88, Yuxiang Road, Tianzhu, Shunyi District, Beijing)
GN Booth: E2168 (Hall E2)

Though we are going to bring:

1. Drilling Mud Solids Control Equipment
2. Transferring and Conveying Equipment
3. Oil Sludge Treatment System

Oil sludge treatment system will still be the high light.

Different areas and different clients has different oil sludge and final requirements for the oil sludge treatment, following questions are needed to be clear for GN to provide the best proposal for your oil sludge treatment solutions.

  • What is the origin and geographic location of the waste sludge (drilling, refinery, other)?
  • What is the makeup of the oil sludge (percentage of oil, water and solids)?
  • What volume of oil sludge is to be treated?
  • How long you need to complete the treatment of the oil sludge?
  • What is the challenge or problem of the current situation?
  • What is the target to achieve for the final oil, water and solids?
  • What process / equipment is being used on location at present for the oil sludge treatment? How is the performance now?
  • What’s your budget for the oil sludge treatment plant?

What equipment available from GN for Oil Sludge Treatment?

written by desander desilter

Jan 27

More and more offshore projects now choose GN products, before no one likes Chinese products for offshore is because of reputation, not enough confidence, and whenever count on the hassles, pay more and get EU / US products, plus, do you have the certifications.

Though it might not big steps so far, but we are on the right direction

offshore shale shake

The drying shakerunit is one of the main equipment in waste cuttings management system. It is used for further treatment of the drilling cuttings discharged out from primary solid control shale shaker. Comparing with the normal shale shaker, drying shaker has a large vibrating G force that makes the shaker recover more drilling fluids from cuttings. By using the drying shaker, the drilling fluids recovery efficiency would be highly increased and less waste discharged. To prevent the drilling fluids spraying out of the shaker deck and contaminating the area nearby, the drying shaker deck is designed to be cover with steel plate on top.

To increase the drilling mud recovery efficiency, GN published the VIST vacuum shaker screen system that can be used especially in offshore project.

To make sure the shale shaker comply with offshore application, GN also invite, CSC come to our yard, assist on the certificates on lifting parts.

As we get more and more experience on offshore projects, soon enough we will be able to offer even more products, with more competitive price.

written by desander desilter

Jan 20

Well as you know it is just after the Chinese New Year, good & fresh, ready for your visiting.

Below information could help visitors to GN booth
Show Date: Feb. 10th ~12th, 2019
Address: India Exposition Mart Limited, Greater Noida, Delhi, India
Booth No.: C 4
Products: shale shaker, shaker screen, centrifugal pump, vacuum pump

In past year, some drilling companies coming from India contacted with GN Solids Control for inquiry and successfully made deal with GN. In order to get more feedback from these clients and show more about GN to India market, GN is going to show at PetroTech-2019 in coming February.

GN shale shaker is designed with simple structure for easy operation and shaker screen replacement. Fully heating treatment strengthens the shaker deck for long time running with a high vibration G force. Screen supporting frame is a critical part of the shale shaker. To guarantee the stable performance of shaker, GN use stainless steel to make the screen support frame, and the thickened U type steel is welded on the frame for embedded the rubber sealing strips. This sealing technology performs excellently in both sealing and rubber strip replacing. GN is able to provide shale shaker with screen of 2 panels, 3 panels and 4 panels for different application and capacity. 

Shale shaker screen is consumable part that used in mud recycling system for coarse cuttings separation. GN now is able to supply almost all the popular replacement shaker screens used in oilfield worldwide. Per comments from clients, GN screen is praised for the quality and performance, the reasonable price is well considered for the cost saving purpose.

GN is making centrifuge pump with nodular cast iron pump casing and impeller for long time working and anti-wearing features. The pump is widely used in mud system for feeding to cyclone and mud mixing. All wear parts of GN centrifugal pump are interchangeable with world famous brand pump.

GN sludge vacuum pump is a kind of pump fully driven by air. It is ideal transfer equipment working in hazardous area. By connecting suitable air compressor, the pump can transfer almost all the types of material like liquid, sludge, powder, and even sand. Some of GN clients doing oily sludge treatment business had given good remark on this pump.

written by desander desilter

Jan 13

For a long time, we know pumps is not our key business, until we know how good Mission have done, and how good Netszch have done. Now we are doing more and more pump business, and a new branch name GN separation is now kind of doing this business solely, with transfer equipment.

The mud transfer pump is an indispensible media for the mud flow from one place to the other. And the pump also provides the power or pressure for mud getting into the equipment for better treating result. GN hasbelow 3 types mud transfer pump is widely in mud engineering and other industries.

Centrifugal pump– in solids control system, the centrifugal pump could be used as the feeding pump to the hydrocyclones, the pressure produces by the pump will give the mud a high speed when getting into the cyclone for better separation performance. It can also be a mixing pump connecting with venturi hopper for mud chemical supplement. GN centrifugal pump is using nodular cast iron as the material of pump case and impeller for long service life.

Screw pump – GN provides single stage screw pump that is mainly used as the feeding pump of the decanter centrifuge due to the stable flow rate. GN screw pump is coming from the Germany brand Netzsch.

Sludge vacuum pump – GNsludge vacuum pumpis a multiple function pump that could transfer liquid, sludge, power even sand. It is a fully pneumatic driving pump without any electrical components, which makes it ideal equipment for hazardous area application. Some clients who are doing oil sludge treatment business use this vacuum pump to transfer the oily sludge from pit.

written by desander desilter

Jan 05

GN have devoted to oil sludge treatment system for a long time, and have succeed in many sites, also with different equipment combination, now the system has been optimized. Below link shows one demo test in a China site:

It differs from different sources also, oily sludge from oil refinery, and Oil&gas Drilling Mud/Waste Oil Pit Mud.
The current treatment of oily sludge and sewage sludge from oil refinery includes incineration and landfill. The former  requires high cost while the latter cannot achieve pollution abatement radically. But by using a dehydration-drying-carbonization process to treat the toxic wastes, recycle oil and energy, and produce useful final products. This is a significant breakthrough in oily sludge treatment field.
The random disposal of oily mud and waste from drilling and transportation on site without treatment cause permanent pollution to the soil and underground water. It’s extremely difficult to effectively treat this oily mud and waste because it is scattered around the vast oil field and its composition is very complex. Under the stricter and stricter environmental regulations in these years, oil producers are facing the urgency of permanently treat this notorious industrial “junk”. The reasons why some Chinese oil producers failed to solve the problems by applying imported technologies and equipment from abroad are the special domestic conditions and high cost. 

GN is nowadays also on progress of developing our own TDU, thermal desorption unit, contact GN for more if you want.

written by desander desilter

Dec 28

Oil Sludge Treatment, project for ass covering. It is normally existbeside the rigs, or the oil production plants, a big pit, with all the oily sludge left, so solids oil water mixed together, without any function to reuse anything. Then that is where oil sludge treatment system needed. GNOST1, GNOST5, GNOST15 is so far 3 standarized model, which may hopefully meet most of the requirement.

Sludges that contain oil and water are generated through a variety of activities and processes on board ships, including sedimentation in tanks, tank dewatering processes, and leaks or cleaning cycles in backflush filters and separators for treating fuel oil and lube oil. The trend for combusting high density fuel oils of higher viscosity, as well as the use of residues as a fuel for medium­speed diesel engines, also increases the production of sludge from both fuel oil and lube oil.Emergence of sludges containing oil and water The build up of these oil and water­containing sludges represents a considerable disposal problem.

Though many options can be implied, GN utilize the standard separation equipment to do the work, which also make sense, it is for separation, the key equipment would be decanter centrifuge,  shakers, plus disc stac separators. GN Oil Sludge Treatment System is to use chemical to wash the oil sludge with heat to temperature of 60-70 C degree. After washing the slurry is pumped to GN separation equipment to separate into oil, water and solids. The recycled water can be reused in the washing process, and the oil is clean enough to sell to the refinery company, the solids contain oil between 2%-5% which can be sent to biodegradation or thermal unit for final disposal.

Ask for more information from GN. 

written by desander desilter

Dec 23

After commissioning projects to a ship for COSL, the after sales engineers go to anothe offshore rig to test GN ViST, and then go to one more offshore rig. Now more and more offshore projects.

The drying shaker unit is one of the main equipment in waste cuttings management system. It is used for further treatment of the drilling cuttings discharged out from primary solid control shale shaker. Comparing with the normal shale shaker, drying shaker has a large vibrating G force that makes the shaker recover more drilling fluids from cuttings. By using the drying shaker, the drilling fluids recovery efficiency would be highly increased and less waste discharged. To prevent the drilling fluids spraying out of the shaker deck and contaminating the area nearby, the drying shaker deck is designed to be cover with steel plate on top. 

To increase the drilling mud recovery efficiency, GN published the VIST vacuum shaker screen system that can be used especially in offshore project.

GN’smud cleaner is a 3 in 1 equipment including bottom drying shaker, desander cyclone and desilter cyclone. Features of GN mud cleaner

1. Bottom shaker is always same model with the primary shale shaker in same solids control system.

2. Hydro cyclone unit are 100% PU material for better wear-resistance performance. 

3. Cyclone manifold pipe frame is removable for easy transportation.

4. Installation of composite frame shaker screen for longer working time and large screen area.

Mud cleaner can remove the cuttings with size large than 20 microns in the drilling mud. Before feeding the mud into the decanter centrifuge, better to use a mud cleaner to treat the mud firstly as it can greatly reduce the solids content so that to reduce working load of the decanter.

GN Solids Control is open to communicate with clients in technics improvement and customized design. For more information, please feel free to contact with GN.

written by desander desilter

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