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Vertical cuttings dryer is also called as vertical centrifuge. It is driven by motor and gearbox. The high rotating speed will generate high G force and therefor to separate the liquid and solids phase.

GNCD930G-GP is a fixed speed vertical cuttings dryer. The power is from a single ex-proof motor driving system. The motor drive the main pulley, the main pulley drive the gearbox housing via V belt, the gearbox drive the bell jar combination and screen basket assembly. Fix the gearbox input shaft, to make the gearbox output shaft speed little lower than gearbox housing speed, to drive the rotor assembly in a speed which is slower than screen basket assembly rotation speed. Thus, screen basket assembly and rotor assembly form same rotation direction separation machine with proper differential speed.

The power of GNCD930G-VFD VFD vertical cuttings dryer is from a dual ex-proof motor driving system. It is a variable speed dryer. The motor drive the main pulley, the main pulley drive the gearbox housing via V belt, the gearbox drive the bell jar combination and screen basket assembly. The auxiliary motor is a flameproof motor. The input shaft is driven by the V-belt through the main pulley, so that the power is converted inside the differential to produce a speed slightly lower than that of the gearbox housing on the output shaft, thereby driving the rotor assembly to a slightly lower speed. Rotating at a speed lower than that of the screen basket assembly. In this way, the screen basket assembly and the rotor total constitute a separation-discharge mechanism with a certain differential speed and high-speed rotation in the same direction. The main and auxiliary motors are controlled by the frequency converter to obtain different speeds and differential speeds. Realize the separation of different materials.

Besides vertical cuttings dryer, GN Solids Control is also capacity to make all major Drilling Waste Management for the liquid and solids separation, like Vertical Cuttings Dryer, HI-G Dryer Shaker, Decanter Centrifuge, Screw Pumps, screw conveyor, etc.

Centrifuge is a kind of mechanical separation equipment that uses centrifugal force to separate the components in the mixture of liquid and solid particles, or liquid and liquid. The centrifuge is mainly used to separate the solid particles in the suspension from the liquid, or to separate two kinds of liquids in the emulsion with different densities and immiscible with each other (such as the 3 phase decanter centrifuge or disc centrifuge used in GN oil sludge treatment system, it is to separate oil and water from the oily slurry). Centrifuges can also be used to remove liquids from wet solids, like for waste water decantering treatment.

There is also centrifuge which can classify solid particles according to density or particle size by using the characteristics of different settling velocity of solid particles with different density or particle size in liquid. It is decanter centrifuge. Decanter centrifuge is the most popular centrifuge type for oil and gas drilling field. The most popular size is 14 inch bowl and 18 inch and 22 inch big bowl decanter centrifuge.

This week, GN Solids Control finished some high speed decanter centrifuge, the centrifuges will be used for low gravity drilling mud processing. GN Solids Control can also make middle speed centrifuge for high gravity mud processing. The higher speed of the centrifuge, the high requirement on the manufacturers capability. GN Solids Control makes high speed and big bowl decanter centrifuges from the small size 9 inch to the largest size 30 inch.

Besides making high speed centrifuge for low gravity solids (LGS) separation, and low speed centrifuge or high gravity separation (HGS), GN Solids Control is also capacity to make VFD centrifuge and FHD centrifuge, which with adjustable speed, can be used for both low gravity solids (LGS) separation and high gravity separation (HGS). And also the VFD and FHD centrifuge is widely used for drilling waste and other industry waste application.

GN Solids Control high speed decanter centrifuge is widely used for low gravity drilling mud solids control (LGS). The most popular size decanter centrifuge for drilling mud solids control system is 14 inch bowl.

There are mainly 3 applications of decanter centrifuges using in drilling mud solids control system.

Firstly, middle speed decanter centrifuge is used in drilling mud solids control system for HGS (High Gravity Solids).

Secondly, high speed decanter centrifuge are used to treat low gravity solids (LGS) removal.

The high speed decanter centrifuge and low speed decanter centrifuge are fixed speed control. GN Solids Control also make variable speed control decanter centrifuge which can fix for both high gravity solids removal and low gravity solids removal. Besides drilling mud solids control, GN Solids Control decanter centrifuge can also used for drilling waste management.

GN Solids Control decanter centrifuge standard color is green RAL6024. GN Solids Control can also make customized color per clients’ request. And GN Solids Control can put clients’ logo on equipment if they need.

Besides 14 inch decanter centrifuge, GN Solids Control makes other sides decanter centrifuge, includes but not limited to below models:

1. GN Solids Control makes 9 inch decanter centrifuge which are widely used in mining slurry separation. It is used together with mini size shale shaker and mixing hopper to complete as a solids removal unit (SRU).

2. GN Solids Control makes 18 inch and 22 inch decanter centrifuge for fine solids separation and dewatering treatment.

3. GN Solids Control makes the biggest size 30 inch decanter centrifuge for industry separation.

Besides various sides decanter centrifuge, GN Solids Control makes other liquid and solids separation equipment to offer turn-key solution to clients.

The major liquid and solids separation equipment GN Solids Control can offer: shale shaker, mud cleaner, desander, desilter, decanter centrifuge, mud agitator, …

Some transferring equipment GN Solids Control make: vertical slurry pump, centrifugal pump, screw conveyor, solids and vacuum transfer pump, …

Complete mud system GN Solids Control makes: various sizes solids removal unit and mud recycling system for various kinds of drilling activities, like for HDD, CBM, piling, pipe-jacking, etc…

Last week, GN Solids Control compete the production of 10 sets drilling mud shale shaker for an offshore drilling company in China for their international drilling activities. The shale shaker supplied for the project is model GNZS595, which is a 5-panel shale shaker.

Besides the 5-panel shale shaker, GN Solids Control also make various sizes 2-panel shale shaker, 3-panel shale shaker, 4-panel shale shaker, and double deck shale shaker. Mostly, clients prefer the linear motion shale shaker. GN Solids Control is also capable to make dual motion shale shaker. Other shale shaker supplier need to use 3 vibrationg motors to reach the dual motion: Linear and Elliptical Motion. GN Solids Control adapts 2 special design motors, Clients can adjust the motor G force to choose linear motion or Gradual elliptical motion.

GN Solids Control shale shaker is complete with 2 vibrating motors, control panel, weir feeder, composite frame pretension screens, and tool box. There is a smal collection mud underneath the shaker deck, plus, there are side discharge port at the shaker deck. Operators can choose to discharge drilling mud from bottom of shaker deck, or at side of the shaker deck.
Clients can choose any types of GN shale shaker, and combined it with desander cyclone and / or desitler cyclone to run it as desander separation, desilter separator or drilling mud cleaner.

Besides shale shaker, drilling mud agitator is another popular equipment in drilling mud solids control system. Mud agitators are widely used at shale shaker tank, mixing tank, reserve tank, suction tank to avoid mud settle down. Mud Agitator is composed of a driving motor, gearbox reduce, shaft, impeller / impeller, tank bottom stabilizer. Gearbox reduce ratio is important for the agitator performance. If the rotating speed is too slow, the mud may be settle down during and circulation. If the agitator rotating speed is too high, it may cause more fast worn out of the gearbox and may be damage the balance of drilling mud. Normally, the agitator speed should be less than 100RPM.

GN Solids Control Mud Gas Separator is located after BOP choke manifold and before the mud enter into the drilling mud processing system. After the BOP and choke manifold., for continued drilling in underbalanced conditions where dramatic pressure surges are normal. It is always used comply with a igniter.

GN Solids Control Mud Gas Separator adopt dump gate on the bottom to control the fluids height, and no sediment.
The liquid impingement tubes are cylindrical which extends the equipment life. The main part of the equipment adopt anti H2S material and the surface is processed. This can totally avoid H2S damage.

GN Solids Control Mud Gas Separator can be equipped on a big shipping skip for easy movement, and while the mud gas separator is rigged up, the free space can be used to allocate choke manifolds.

GN Solids Control flare ignition device is used for connecting to the gas Vent line of Mud Gas Separator to burn the dangerous gas from the drilling mud like H2S. The upper part of the flare ignition system is stainless steel, and it is designed for rain proof in the oilfield. The major components for the electrics are from famous Brand like SIEMENS or Schneider. The power for the electric can be directly from industry normal power, or users can charge the battery and take the unit for remote areas application. GN flare device is with remote control, and PLC is optional available for less manpower notice for continually and automatically working..

GN Solids Control is specialized in full package drilling mud system. Unlike other solids control manufacturer, who only self-make a part of solids control equipment, GN Solids Control makes all the drilling mud solids control equipment by himself. After degasser, GN Solids Control makes solids control equipment to process the drilling mud, like 3-panel shale shaker and 4-panel shale shaker, mud cleaner, desander and desilter, vacuum degasser, and decanter centrifuge. GN Solids Control make other accessory equipment to complete the processing, like mud agitator, centrifugal pump, slurry pump, screw conveyor, etc…

GN Solids Control vacuum pump is mainly designed for solids and slurry transfer. With its special design, the vacuum pump can reach discharging distance up to 500m or 1000m, it’s up to the models clients choose. The big size vacuum pump can discharge to 1000m away, and the even the smallest model vacuum pump can reach up transfer distance 500m away.

Recently, GN Solids Control offered a mini size vacuum pump applied for tank cleaning works. The client will use the mini size vacuum pump to suck the waste slurry from deep tanks. The model of the mini size vacuum pump is GNSP-10B. It is the smallest size vacuum pump made by GN Solid Control. The biggest model is GNSP-10B.

After tank cleaning, the client choose a GN mini size decanter centrifuge to do the liquid and solids separation. After the separation, the client can reduce the waste liquid, recover more usable liquid and reuse the water. It is a 9 inch baby centrifuge with high speed and high G force for water treatment and slurry recover. GN Solids Control mini size centrifuge is widely used at Industry Waste Water Treatment plant and Diamond Core Drilling Fluids Treatment.

GN Solids Control major advantage is to offer full package tank cleaning treatment system and solids removal unit for mining industry, which will consist of shale shaker separator, desander / desilter, decanter centrifuge, feeding pumps, control panels, mud tanks, and skids to holding all items. Sometimes, the chemical dosing unit will be used together with centrifuge to ultra fine solids separation.

GN Solids Control sludge vacuum pump, also named as solids transfer pump. It is a pneumatic slurry transfer vacuum pump. The pump is widely used for liquid, slurry, powder and solids transfer. GN vacuum pump is a high vacuum loading solids transfer pump, so it can be used at tough environmental for solids or sludge transfer especially used to suck and transfer the high density and high viscosity oil sludge from waste pits generated by oil and gas drilling. GN vacuum pump is working with high performance and less maintenance. The pump can transfer material with high gravity and high density, with dry solids material or slurry with solids content max. up to 80%.

GN Solids America, which is located in Houston America, is a subsidiary of GN Solids Control. GN Solids Control is a professional manufacturer who is focusing on drilling mud solids control and drilling waste management. Its products covering oil and gas drilling, as well as non-oil drilling, such as water well drilling, horizontal directional drilling, piling, pipe jacking, and other trenchless activities.

GN Solids Control make various types of waste management equipment to treat the oily and non-oil slurry generated from drilling and construction field.

GN Solids America and GN Solids Control Successfully attended 2022  Offshore Technology Conference in Houston.
The Offshore Technology Conference (OTC) in Houston is the largest exhibition in oil and gas field. It takes place every year in May, the same as this year. There are many visitors in oil field coming from middle east, Africa, South America, and other areas. As the effect of covina-virus, internal trip become very difficult. There are restrictions in many countries. OTC is a good chance to meet clients there.

GN Solids America has big warehouse in Houston. Clients can get standard equipment stock equipment and replacement spare parts in Houston warehouse. This yeas, GN Solids America team take below equipment for the exhibition.

1. Screen vacuum unit. The unit is fixed under shale shaker to further recover useful drilling fluids from the drilling cuttings. It is a 100% air driven unit. A GN screen vacuum unit can be connected to 1 or 3 shale shakers.

2. Sludge and solids vacuum pump. It is also a 100% air driven device. It is specially designed for long distance transfer on solids, powder and sludge.

Replacement screens for various brand and models shale shakers. GN Solids Control makes high quality composite frame pretension screens. GN Solids Control can even make customized screens per clients drawing, and packing.

Drilling mud agitator is widely used in drilling mud systems. It is equipped in all kinds of mud tanks to avoid solids settling down, like in sand trap, mixing tank, reserve tank, centrifugal tank, etc…

The Mud agitator is composed of driven motor and gearbox. The motor and gearbox are connected via coupling or flange, and driven the shaft to rotate. There are canted impeller / impellers fixing on the shaft to protect the drilling mud from settling down.

According to the connection face of driven motor and gearbox, there are horizontal mud agitator and vertical mud agitator. Clients choose the suitable model based on the mud tank situation.

GN Solids Control makes various sizes drilling mud agitator to fit for clients’ applications. This week, GN Solids Control finished some mud agitators for an offshore platform. The agitators are customized per client’s color. GN Solids Control make shaft to suit for the tank inner depth. And the canter impeller size and quantity is designed to accordance with the motor power and tank size. Plus, in order to avoid the agitator shaft hanging during rotating, GN Solids Control make tank bottom stabilizer to support the agitator shaft inside the mud tank. It can also improve the service time of the mud agitator.

During assembly, the operator should adjust the gap between the stabilizer and the shaft to make the gap between the stabilizer and the shaft uniform to ensure concentricity. If the concentricity of the stabilizer and the shaft cannot be guaranteed, the agitator will be noisy and the gearbox reducer will be easily damaged.

Correct and suitable lubrication is vital to ensure stable running of mud agitators. Most problem of mud agitator are caused by unsuitable lubrication, or the lock of lubrication.

Besides mud agitator, GN Solids Control is capable to make full line drilling mud solids control equipment.

GN Solids Control make small footprint solids removal unit (SRU) for diamond drilling and mining industries. solids removal unit (SRU) can help to separate the liquid and solids in the slurry waste generated from such mentioned drilling activities. After the shale shaker and centrifuge separation, the dry solids waste is with little water content, the volume is much smaller than the original waste. And it is easy for transport. And the solids waste can be used as construction material. The recovered liquid phase is with less solids, it can be reused for drilling and mud mixing.

Besides the shale shaker and decanter centrifuge separation, GN Solids Control equipped a small size mixing hopper with a mixing pump to prepare qualified new drilling mud to support a continue diamond drilling and mining activity.

The dirty drilling mud from drilling collar is first collected in a mud storage tank. There is a submersible slurry pump allocated on the storage tank to feed the dirty mud to shale shaker for coarse solids separation. The shale shaker is the 1st stage separation. GNZS752 shale shaker is used in the process. It is a min size shale shaker with single deck and 2 screen panels.

The coarse solids will be screened and discharged from the small shale shaker, the liquid phase will pass the screens and fall down into the #1 sand trap of the mud tank. And then there is a screw pump will suck the liquid from sand trap and feed to high speed decanter centrifuge for fine solids separation.

The replacement screens on the mini size shale shaker GNZS752 is fine in order to remove more solids phase, and to maximum reduce the mud weight. And it is to ensure that, after the shale shaker separation, the recovered liquid phase is qualified for decanter centrifuge separation. After centrifuge separation, the clean liquid will flow to the 2# centrifuge tank.
The mixing pump is capacity to suck the drilling mud from #1 sand trap and #2 centrifuge tank, with the power adding from the mixing hopper, the qualified new drilling mud will be send back to the tank compartment and waiting for sending back to rig via s supercharge pump.

Besides the 9 inch mini size decanter centrifuge, GN Solids Control is capacity to make other big sizes for various application, it includes but not limited to drilling mud solids control system, waste water dewatering system, oil sludge separation system, and drilling waste management system, etc…

GN Solids Control finished another full package of oil sludge treatment system to Kazakhstan market. Before this, GN Solids Control exported other sizes oil sludge treatment package to the market, and clients are happy with the performance.

Below are the major separation modular included in the oil sludge treatment system to the Kazakhstan client.

1. A 20ft containerized pre-mixing tank.

The mud tank is the same size with 20ft container for easy transportation. The tank is for both dilution and mixing. There are 2 mud agitators equipped in the mud tank to mixing the oil sludge well. A vertical slurry pump are mounted on the tank top. It is for transferring the drilling mud from the pre-mixing tank to shale shaker separator.

2. A shale shaker separation modular

There is a mud tank and a shale shaker separator included in the modular. It is a double deck shale shaker for solids removal. The double deck shale shaker is specially designed for oil sludge treatment. There are covers on the shaker top to avoid sludge spay. As the oil sludge is normally with high density and viscosity. GN Solids Control equipped nozzles for heating the material. It is to reduce the viscosity to help for the separation.

3. Decanter centrifuge and disc centrifuge modular

There is a decanter centrifuge and a disc centrifuge allocated on the mud tank. The decanter centrifuge is for 2-phase separation. The outputs from decanter centrifuge is particle phase, oil and water mixture. It is to treat the liquid recovered from shale shaker. The disc centrifuge is for 3-phase separation, it to recover the clean liquid discharged from decanter centrifuge. After disc centrifuge, the final outputs are fine solids cake, clean water and recovered oil.

There is a small water buffer tank and a small oil buffer tank allocated on the centrifuge modular. There are oil pump and water pump near the oil tank and water tank to transfer the recovered oil and water to outside storage tanks.