Recently, GN Solids Control engineer just finished a jobsite troubleshooting for decanter centrifuge. The problem of the the jobsite is that, the client use a very big power sand pump is used to feed for 2 centrifuges; the pipelines are controlled by valves. The pump control is separated with centrifuge control. There is no connection between pump control and centrifuge control. It is not allowed and will damage the centrifuge.

GN Solids Control comments: There MUST be connection between centrifuge control and feeding pump control.
The centrifuge itself is with overload protection. In case of overload, e.g.: the feeding flow is suddenly increased, or jobsite people wrongly open the valve to feed more mud, or the mud weight is suddenly increased, etc…The mud is over the centrifuge handling capacity. The centrifuge will be stopped to avoid damage.

In normal condition there is connection between pump control and centrifuge control. The pump feeding can be stopped immediately after the centrifuge is stopped. The centrifuge bowl is stopped rotating gradually, the internal mud is push out during the time. After the centrifuge completely stopped, operators can check the situation or adjust centrifuge settings, and start the centrifuge and pump feeding again.

But if there is no connections between centrifuge control and pump control. In case the centrifuge is stopped as overload, the pump cannot be stopped and keep feeding to the centrifuge bowl. The centrifuge stopped rotating but mud continued be pumped into the bowl and cannot come out, it will cause serious block, or even cause serious damage to centrifuge components, like damage the gearbox or bearings.

Recommended solution:
There are control components for 7.5kw feeding pump in GN centrifuge panel.

Change feeding pump to 5.5kw or 7.5kw. The pump can be controlled directly by GN centrifuge panel. There are interlock connection between centrifuge control and pump control.

Alternative solution:
If the job site is not capable to change for small feeding pump. Connect the existing pump panel control wires to GN centrifuge panel.
that the pump can be run.

Pneumatic Application Solids and sludge vacuum pump is a 100% air driven pump for various applications in different fields. Like for drilling cuttings transfer, for oil sludge transfer, for tank cleaning, for oil base mud cleaning, for sand / rocks transfer in construction companies, for chemicals transfer, etc… One time, a construction company ordered some vacuum pump packages: to allocate 8 pumps in a fabricated container, and used the vacuum pump to suck and transfer sands and rocks from a site to another, which is around 1 km away. Before using GN vacuum pump units, they have to use manpower and trucks for the transfer, it takes time and not continue.

Recently, some customers approaching GN Solids Control to source Pneumatic Application vacuum pump for Oil base mud and water base mud cuttings transfer. They did not use GN Pneumatic Application vacuum pumps before so they have some questions. Below are some normal questions clients are normally inquiring.

Clients’ questions: Does GN Solids Control have experience with any of the Solids and sludge vacuum pump working somewhere?
Reply from GN Solids Control: Till now we sold around 100 pumps in different sizes for different applications, like for drilling cuttings, oil sludge, tank cleaning, sand transfer, etc…

Most pumps we do not know what they are exactly for. Clients did not tell us clearly.
For drill cuttings transfer as far we know a pump in Singapore for offshore, and 2 pumps in Brazil for onshore.

Clients’ questions: Is it working well during all drilling sections – water base and oil base?
Reply from GN Solids Control: The vacuum pump can suit for OBM and WBM. If the material is floweable, the pump can be used.

Clients’ questions: Is it require separate compressor ?
Reply from GN Solids Control: The air supplier can come from separate compressor, or from other source. But it has to achieve the requested pressure and air consumption.

Clients’ questions: What is the backup solution in case of equipment shut down during operation?
Reply from GN Solids Control: Some clients use an extra pump for backup. Or use screw conveyors in case the vacuum pump is shut down.

Another 2 sets of 30 inch big bowl decanter centrifuge GNLW764 are under fabrication. After running testing in GN Solids Control factory, the 2 huge machines will be shipped to U.S. client to be used in their construction field slurry treatment system. The construction field slurry treatment system is also designed and made by GN.

The system is equipped with coarse solids separation shale shaker, normal solids control shale shaker, chemical dosing system, various mud tanks for different applications, pumps, mud agitators, electrical control system, and so on. The system were delivered earlier to the client. The 30 inch big bowl decanter centrifuge GNLW764 decanter centrifuge takes longer time for manufacturer than the slurry treatment system. They will be shipped separately by 2 full containers as the big size.

The 30 inch big bowl decanter centrifuge GNLW764 decanter centrifuge is equipped with a big bowl up to 30 inch. It is the biggest bowl GN Solids Control made. It is also one of the biggest bowl decanter centrifuge with high speed for industry application.

Few companies in the world are capable to make it. It requests a high standard on the processing production line.
The 30 inch big bowl decanter centrifuge GNLW764 decanter centrifuge is not popular in oil and gas drilling, which mostly utilize 14 inch for drilling mud solids control, 18 inch / 22 inch for drilling waste management. The 30 inch big bowl decanter centrifuge GNLW764 decanter centrifuge can be used for dewatering and thickening sewage slurry. The unique properties of the centrifuge bowl with specially designed gear box unit and smart control system will guarantee the performance of GN decanter centrifuge for municipal sewage sludge.

To achieve maximum dewatering and thickening of the municipal sewage slurry, the GN VFD or hydraulic drive centrifuge is available to set the bowl speed differential speed. GN Solids Control design purpose for the environmental solutions decanter centrifuges is to have reliable performance as well as best price / performance ratio for the investors.

GN Solids Control makes full line mud system equipment for oil and gas, and trenchless machines.
Shale shaker and mud cleaner are the major processing machine of mud treatment and recycling system. Besides, there are poor boy degasser, vacuum degasser, decanter centrifuge, jet mud mixer, mud agitator, mud mixing hopper, mud shearing pump, sand pump, etc…

GN Solids Control makes different models of shale shaker and mud cleaner to suit for different sizes of mud treatment and recycling system. All GN Solids Control shale shaker are equipped with high quality composite material pretension shaker screen for better performance and longer servicing time. GN Solids Control has his own screen plant for composite frame screens manufacturing. Besides offer screens for GN own shaker brand, GN Solids Control also makes high quality replacement screens for other brand shakers.

Below are some types of mud system shale shaker that GN Solids Control is capable to make:
1) Single deck shale shaker and double deck shale shaker
2) 2-panel shale shaker, 3-panel shale shaker and 4-panel shale shaker
3) Linear motion shale shaker and dual motion shale shaker
4) Tandem shale shaker and tripled-deck shale shaker

Below are some types of mud system mud cleaner that GN Solids Control is capable to make:
1) Desilter mud cleaner with under flow shale shaker or without under flow shale shaker
2) Desander mud cleaner with under flow shale shaker or without under flow shale shaker
3) Mud conditioners 3 in 1 mud cleaner: it is a combination of shale shaker, desander and desilter.
Besides solids control equipment for mud recycling system, and high quality replacement screens for different shaker models, GN Solids Control is also professional on drilling waste management equipment manufacturing. GN Solids Control make big bowl centrifuge, 3-phase centrifuge, cuttings dryer, screw conveyer, dewatering unit, drilling cutting solidification unit, etc… For more information of GN Solids Control equipment, welcome client contact GN.

Recently, GN Solid Control has completed the manufacture of a batch of solid vacuum pumps for customers from Africa. With the wide application, vacuum pump has received extensive attention since it was launched by GN Solid Control. And its performance has been recognized by users in the different fields.

Characteristics of GN Solid Control sludge vacuum pump:
1) 100% air driven without electrical components. Suitable for hazardous areas
GN Solid Control sludge vacuum pump is a complete air driven pump that needs to be connected to the air source, such as compressors. There are no electrical components on the vacuum pump to allow the pump to be used in certain areas with combustible gases. The vacuum pump sucks sludge or solids material via vacuum pressure by vacuum suction, there are vacuum pressure and positive pressure inside the pump alternatively to control the suction and discharge.

2) Wide application for different industries
There is a wide application of GN solid and sludge vacuum pump. The vacuum pump can be used to transport liquid, mud, concentrated oil sludge and even solid powder and gravel. A typical use of the vacuum pump is to transport drilling cuttings in a waste management system at rig site. Some customers install the pump on a mobile crowbar to complete transportation from one site to another.

3) Low maintenance
The vacuum pump is composed of pipe manifolds, valves and tank cabin. The tank cabin is used to store the material, but there are no moving parts in the cabin, which greatly reduces the maintenance frequency.

How to know if the vacuum pump can suit for your application and show to choose the right model GN solid vacuum pump? You should check and answer below questions.
1. What is the composition of the material?
2. What is the liquidity of the material?
3. What is the density of the material?
4. What is the height of inhalation and discharge?
5. What is the distance between inhalation and discharge?
6. What are the current transport difficulties?
7. Other materials and site-related videos or other materials.

For more information about GN solids control equipment, welcome to contact GN.

The Portable Solids Vacuum Pump has a very wide application in different field. It is compact design with small footprint. Why it is called as Portable Solids Vacuum Pump?

1) GN Portable Solids Vacuum Pump is a 100% air driven pump with air control valves and components. There are no electrical parts or comments in the system. It is a very safe pump can be used for hazardous areas, it can be used for zone 0, zone 1 and zone 2 applications.

2) There are tires on the Portable Solids Vacuum Pump for easy movement.

3)The pump can transfer material with high gravity and high density. The pump can suck material with solids content max. up to 80%.

4) The Portable Solids Vacuum Pump can be used for suction pump to suction material from deep pits and discharged to as far as 500m away.

Below are some of the material the Portable Solids Vacuum Pump transfer applications

1) The Waste drilling mud and waste solids discharged from drilling mud system shale shaker, mud cleaner and decanter centrifuges

2) The pump can be used for Drilling mud transfer from a tank to other tanks without leakage

3) The pump can suck oily sludge and used in Waste pit cleaning projects

4) There there are no leakage during the pump suction and transfer, it can be used for Hazardous waste recovery

5) In oil and gas drilling field, it is widely used for Oil sludge, tank bottoms and residual removal and transfer

6) The Portable Solids Vacuum Pump can also be used for Barge holdings and vessel bottom clean out

7) The Portable Solids Vacuum Pump can be used in Bulk tank and silo transfer of material in liquid mud plant
8) Sand; Course, fine, conventional and frac sand
9) The Portable Solids Vacuum Pump can be used to transfer Diatomaceous earth
10) The Portable Solids Vacuum Pump can be used to transfer Animal waste etc.
Besides small size and middle size Portable Solids Vacuum Pump, GN Solids Control also makes big size skid mounted Solids Vacuum Pump for long distance transfer and for big capacity suction.

This week, GN Solids Control delivered two sets of drilling mud solids control was dispatch to a Russia client. The equipment will be used for projects in Russia to recover drilling fluid from oil and gas drilling activities. Considering the weather, the equipment and all components are designed for lower temperature areas.

Drilling mud solids control equipment together with drilling cuttings waste management system is an important closed-loop mud system, it can recover more valuable drilling fluid and reduce waste discharge. Reduce drilling costs and protect the environment.

GN Solids control can not only provide single processing equipment, but also provide full package drilling cuttings processing systems with turn-key solution, including different types of equipment. Vertical drilling cuttings dryer and decanter centrifuge are the key equipment of drilling cuttings treatment system.

For oil based drilling cuttings, the vertical drying device is an ideal equipment for separating drilling fluid and cuttings. The drying device receives cuttings discharged from the solid control shale shaker and runs at a speed of 900 rpm to effectively reduce the oil on the cuttings to 3% ~ 5% or less. We use a high hardness scraper to push the separated cuttings off the screen. The high quality scraper ensures the stable performance of the VG dryer and low maintenance cost.

Fine particles flow out of the vertical cuttings dryer through the screen hole and enter the buffer tank. The waste decanter centrifuge is used for further separation and treatment of the effluent from the dryer. We recommend the use of ultra-wear-resistant NEMO pump to transport the mud from the buffer tank to the centrifuge for fine particle separation. The centrifuge operates at a speed of 3200 rpm to produce a separation coefficient of 2062g, under which fine particles the size of 2 microns will be removed. After being treated by decanter centrifuge, the drilling fluid can be reused.

GN Solids Control can provide fixed speed or VFD frequency control mode of vertical drilling cuttings dryer and centrifuge. Customers can find almost all the equipment used for cuttings treatment from the crown energy product list. Sludge vacuum pump and screw conveyer for cuttings transportation, vertical dryer and high G drying screen for cuttings dewatering, and high speed centrifuge for fine cuttings separation.
If you have any requests, please feel free to contact GN Solids Control.

Mud Gas Separator is a safety device for oil and gas drilling mud system. It is not always used during running. But it is a must be equipment for safety operation. GN Solids Control makes 40 inch mud gas separation and 42 inch mud gas separation.

Application & Features of GN Mud Gas Separator

GN Mud Gas Separator is located after BOP choke manifolds, and before the drilling mud solids control system. Mud gas separation is normally uased after the BOP and choke manifolds, in order to continue drilling in underbalanced conditions where dramatic pressure surges are normal. The mud gas separation is always used comply with an igniter device to fire the harmful gas. GN Solids Control makes automatic igniter device as well.

The working principle of GN Mud Gas Separator
In dangerous “Kick” conditions, the mud gas separator allows operators to control and reuse the drilling fluid by removing most percentage of gas. The gas-cut drilling mud enters the flow line of the mud gas separator, where it hits a series of baffle plates. These baffles provide the surface area used to decompose the gas cutting mud. The mud is sent to the solids control shale shaker for further treatment, while the separated gas travels to the vent line at the top of the mud gas separator to maintain a safe distance from the rig and rig personnel. And flow to an igniter to fire the harmful gas at the remote area. The pipelines between mud gas separator and igniter device can up to max. 50 meters.

Basic Parameters of Mud Gas Separator
GN Solids Control has a standard Model Mud Gas Separator: GNZYQ1000A for 40 inch diameter, and GNZYQ1200A for 42 inch diameter mud gas separators. GN Solids Control can also make smaller size like 36 inch diameter. For other models of mud gas separator, please contact GN Solids Control sales team.
Maximum Mud Injection Rate (Liquid Handling Capacity) varies from 200 – 380m3/h (880 GPM ~ 1672 GPM).
Maximum Allowable Kill Rate (through MGS) is 90%.
Maximum Allowable Gas Flowrate (Vent Line) is 3900 M3/HR.
Design pressure of GN Mud Gas Separator is 1.6 Mpa. Maximum Allowable MGS Pressure (Mud Seal) LESS THAN 100PSI.

As a culture, GN Solids Control will arrange a high quality tourist for all GN staffs during the year middle, and an annual party at the year end. It is a good chance to reflex.

In the first half of 2019, GN Solids Control achieved fruitful results. In order to thank the staff for their hard work and enrich the cultural life of the staff, GN Solids Control arranged the 2019 Tourism and Culture Festival in the beautiful Qinhuangdao fishing Island from July 15 to 16. The theme of this year’s GN Solids Control Tourism Culture Festival is “smelting team, surpassing oneself; working together, invincible.”

The fishing island marine hot spring scenic spot is located in one of the most beautiful eight major coasts in China. The beach has the characteristics of fine sand, slow beach, clear water and flat tide. With the theme of “Appreciating the sand sculptures by boat, sanding the grass and washing the waves, bathing in the hot springs and watching the sea, living in the villas and eating seafood”, the classic projects: racecourse, shooting range, sand-skiing, grass-skiing surf, beach motorcycle, Flying cars, water trapeze, marine animals, Ferris wheel, carousel, double flying, pirate ship, dream water village, circulation river and so on. G show • Hollywood film and television stunt show: a huge amount of money and the United States Hollywood stunt performance team teamed up to create the world’s top stunt show. The fishing island scenic spot was promoted to the national AAAA level scenic spot in 2019.

At the dinner party, there was also a stage for everyone to enjoy and show themselves. In a happy and pleasant atmosphere, talented people relax their mood, strengthen their understanding of each other, and experience life outside of work. The idea of the company is that hard work is for a better life, people who love life, will love their jobs for a longer time.

Mostly GN ViST screen vacuum unit is used together with GN shale shakers, and other shaker brands with utilizing flat replacement shaker screens.

Some customers are wondering if the ViST screen vacuum unit can be used together with Pyramid screens. They contacted GN Solids Control to ask about the performance of the ViST screen vacuum unit when used with Pyramid style shaker screens, as they seemed to think there would be a reduction in efficiency due to the design of the PMD screen. They want to know did other people use the ViST screen vacuum system with PMD screens and what was the outcome?

The reply from GN Solids Control about this question is that, the ViST screen vacuum unit can only be used for flat screens. It cannot be used for pyramid shaker screens.

There is a catch pan under screen deck to connect shakers with ViST unit. Because the ViST screen vacuum unit catch pan is only installed below the last screen of shaker decks. So for people prefer the story of pyramid screens, they can use a flat screen on the last end of shaker deck. They can use PMD screens on the other screen decks.

Besides ViST screen vacuum unit and different models shale shakers and replacement shaker screens, GN Solids Control is also a major manufacturer on full line processing equipment for oil and gas drilling. Like mud cleaner, desander, desilter, mud agitator, mud gun, mud tanks, different sizes screw conveyors (cuttings augers), mixing hopper, shearing hopper, drill cuttings solidification unit, dewatering unit, various pumps (centrifugal pump, slurry pump, solids and sludge vacuum pump…), decanter centrifuges sizing from 9 inch, 14 inch, 18 inch, 22 inch to big bowl 30 inch, etc…

Furthermore, GN Solids Control is a leading manufacturer on drilling waste management equipment and systems, like equipment and system for drilling mud solids control, for drilling waste management, for oily sludge separation, for automatic tank cleaning, for water treatment, etc…