This week, GN Solids Control is assembling 2 sets of mud cleaning system for SINOPEC HDD rigs. The 2 mud cleaning system are designed for different size HDD rigs, one system is with 1000GPM handling capacity, while the other one is designed for 500GPM handling capacity.

500GPM mud system is the most popular size SINOPEC bought from GN Solids Control. Till now, they have over 30 sets mud recycling system from GN Solids Control for their international HDD and piling projects.

The 2 mud recycling system are painted with clients’ special requested color. GN Standard color is green, while the SINOPEC system is yellow. The 500GPM mud system is equipped with very high standard. It is composite with all the 4-stage solids control equipment for drilling mud treatment.

1. The 1st stage solids control equipment shale shaker. There is a 3-panel shale shaker which is with big screen areas for capacity up to 500GPM. The shaker model is GN703F, which is the most hot sale shale shaker made by GN Solids Control.

2. The 2nd stage solids control equipment desander, and the 3rd stage solids control equipment. It is a 3-in-1 mud cleaner which is composite of a big area underflow shale shaker GNZS703F, and 1×10 inch desander cone plus 8×4 inch desiltere cone.

3. The 4th stage solids control equipment decanter centrifuge. There is a 18 inch middle big bowl centrifuge. The centrifuge model is GNLW452D. It is a big bowl centrifuge but it is middle speed, The GNLW452D is an economic centrifuge model with big bowl but middle speed. So it is widely used in HDD, CBM, water well drilling and other trenchless rigs.

Besides mud recycling, GN Solids Control 500GPM mud recycling system also have the function of mixing. It can continue prepare quality new mud for the mud system. The mixing pipelines are connected to all mud tank compartments. So operators can choose to mixing from any of the tank compartment.

GN Solids Control makes linear motion or dual motion shale shaker for onshore and offshore drilling rigs. This week, GN Solids Control finished 2 shale shakers for an offshore drilling company.

The 2 shale shakers are the most popular models made by GN Solids Control GNZS594. It is a 4-panel single deck shale shaker. It can either make as linear motion or dual motions while apply various vibrating motors.

GN Solids Control shale shaker is equipped with heady duty design shaker deck. The whole shaker deck of GN Solids Control shale shaker is treated by heat treatment. It enable GN shale shakers to suit for G force up to 7.5 G. If for high G drying shaker model, the G force can up to 8.0G.

The shaker deck of GN shale shaker is sealed with patent design sealing rubbers to avoid fine solids bypass and to protection the shaker deck and shaker screens during vibrating. And the patent design shaker deck sealing rubber is easy for installation and replacement.

Another big advantage of GN Solids Control shale shaker is equipped with mechanical deck angle adjustable device. Operators can adjust shaker deck angle while the the shaker is running. They do not need to stop the shakers. And plus, the shaker deck adjustment device is GN Solids Control patent design technology. It is a Synchronous lifting system, it means the shaker users can change shaker deck at either side of the shaker deck, both side with change with the same angle.

And plus, GN Solids Control is also capable to make other separation equipment for offshore drilling, like mud cleaner, decanter centrifuge, degassers, etc…

Besides shale shaker for drilling rig mud system, GN Solids Control is also capacity to make high capacity dewatering vibrating screen shaker, Classification Vibrating Screen shaker and mining vibrating screen shakers with different capacity. For more details, please contact GN Solids Control system branch: GN Separation.

The Screw conveyors is a simple and popular transfer device at oil and gas drilling field. As it is a rotating device, and at many job site, the top covers of screw conveyor augers are gratings, it caused some unexpected accidence.

One time, a clients contacted GN Solids Control to ask for support. He said they experienced by HSE issues at their rigs sides which were caused by screw conveyors. He said in the past year, some operators hurt their finger or foot by screw conveyors. It caused jobsite shot down.

They want know what safety protection GN Solids Control provide on the screw conveyors.

Firstly, GN Solids Control offers Full Length Safety Grab Wires and ESD Devices (emergency stop device) on start stop panels. Operators can easily stop the augers at any position nearby it.

Clients can choose Fixed speed motor starter or manual adjustable speed motor starter per order request. The control panel is capable for operating in +55 °C Ambient Temps.

All Electrical equipment and electrical accessories for the auger system is designed and certified for Hazardous Area with ground protection.

The auger motors and motor starter can be accordance with explosion proof standard for CNEX, IECEx or ATEX Zone 1 and Zone 2 Rated and suits for 460V/60HZ 3 Phase, 380V/HZ 3 Phase, or suits for customized power system. Clients confirm voltage and HZ before order.

GN Solids Control can provide motor starter with Emergency STOP Switches located Near the Augers. As an additional safety protection, GN Solids Control is capable to provide Audio / visual alarm system connected to the auger motor starters and located near the augers. The motor start equipped with Audio and visual alarm system will be automatically activated once the power is switched on followed by the actual auger startup with a safety delay time. And plus, the Audio and Visual Alarm to be in the OFF mode after some time once the auger starts operation. It is for giving ATTENSION to stuff nearby to let them aware about the start up of the screw conveyor, and ensure them have time to keep distance from the rotating device.

GN Solids Control Desanding unit provide economic solution to treat the dirty mud generated from trenchless projects, like Bored Piling Slurry desanding, TBM slurry treatment, HDD mud recycling, as well as water well drilling mud treatment, and so on.

This week, GN Solids Control finished 4 packages mud cleaning unit for an Asia client. The mud cleaning units will be used for desanding at trenchless and pipe jacking projects. There are 2 models included in the 4 packages mud cleaning unit.

There are 2 packages of GNMS-1500D desanding plan. The handling capacity of the GNMS-1500D unit is up to 1500GPM. The major separation equipment is double coarse shale shaker GNZS707, which is a double deck shale shaker for coarse solids separation. After pre-separation shale shaker, there are number 2 desander cone with size 16 inch for big flow mud treatment.

Another 2 packages desanding unit is smaller capacity, the model is GNMS-1000D. The handling capacity is 1000GPM. The pre-separation shale shaker model is GNZS705. After shale shaker, the desander cone size is 10 inch with quantity 2.

GN Solids Control utilize high quality PU material desander cones for longer lifetime. The separation shake screen is made by 100% PU or by steel with big opening. Clients choose the right screen opening to reach the separation result.

Besides the 1000GPM and 15000GPM mud desanding plant, GN Solids Control is capable to make other smaller size and bigger size mud recycling and desanding unit, it includes but not limited to below models:

Some small Desanding Plants designed and made by GN Solids Control:
Desanding Plant model GNMS-200D, the design Capacity is 200GPM, 50m³/h.
Desanding Plant model GNMS-500D, the design Capacity is 500GPM, 120m³/h.
Desanding Plant model GNMS-1000D, the design Capacity is 1000GPM, 240m³/h.

Some big Desanding Plants designed and made by GN Solids Control:
Desanding Plant model GNMS-360M, the design Capacity is 360 m³/h
Desanding Plant model GNMS-500M, the design Capacity is 5000 m³/h
Desanding Plant model GNMS-1000M, the design Capacity is 1000 m³/h
Desanding Plant model GNMS-2000M, the design Capacity is 2000 m³/h
Desanding Plant model GNMS-3000M, the design Capacity is 3000 m³/h

Last week, GN Solids Control finished a set of decanter centrifuge and sludge & solids vacuum pump for an Environmental Solution Company.

The centrifuge is a 2-phase decanter centrifuge which can be used for separation oily sludge and non-oily sludge.
When the material feed to decanter centrifuge, the solids particles should be separated by GN Solids Shale Shaker to achieve correct particle size. Suitable API screen size should be chosen during the separation to achieve the separation result.

And the solids content before enter into decanter centrifuge should be less than 15%. It can be achieved by heating and dilution during pre-mixing stage. GN Solids Control can offer the pre-mixing tank which is equipped with heating pipes, agitators, slurry transfer pump and electrical control system for dilution and mixing. Operators can also prepare it at jobsite.
And plus, the Solid material density inside the oily sludge should be higher than liquid material. In this situation, after heating and flocculation, the solid phase can settle naturally or can be separated by lab tube centrifuge.

The output after 2-phase decanter centrifuge is solids phase and oil & water & soil mixture. So after 2-phase decanter centrifuge, 3-phase decanter centrifuge or disc centrifuge can be used to further clean the water, oil and soil.

The vacuum pump has a wide range application at waste management jobsite. The pump can suck slurry and feed the system. GN Solids Control vacuum pump can be used for liquid, solids and sludge transfer. The vacuum pump model used for the environmental solution company is a small size model GNSP-10, it is the smallest size vacuum pump made by GN Solids Control. GN Solids Control can offer another set of suction pipe and ahead, so this case, the mini vacuum pump can be used as an industry vacuum cleaner to clean the spilled mud on mud tanks or on the ground.

GN Solids Control makes various sizes and various standards centrifuges to meet for oil and gas drilling, no-oil drilling mud treatment, as well as industry waste separation.

In many cases, clients contact GN Solids Control sales team to ask for prices of GN centrifuges. They said their choice of centrifuge will depend on the characteristics and the price for this they want GN Solids Control to send them a draft quotation for all types of centrifuges.

Actually, it is impossible to quote prices if without the details information of the project or clients request on the separation centrifuges. Some of the reasons are that, GN Solids Control makes various types decanter centrifuge for oil gas drilling, slurry separation and industry separation.

GN Solids Control need the project information and clients’ request on the decanter centrifuge, then GN sales engineer can recommend clients suitable model with necessary standards.

Prices cannot be quoted without project information. As even for the same centrifuge model, price will vary much for different standard while treating different materials, like for the VFD centrifuges, for a same model, there are Explosion proof zone 1 and zone 2 for hazardous areas, there are CNEX, ATEX, and IECEX explosion proof standard for various market request. For the positive pressurized VFD control panel, there are 3 VFD or 2 VFD control panel per different field request. There are vortex tube cooking system and air conditioner cooling type VFD panel to suit for different ambient areas.
You can visit our website for information. And also there are non-explosion proof decanter and VFD panel for safety areas. Clients can choose the suitable standard based on his job site situation and his budget.

GN Solids Control website show some general centrifuge models for clients’ information.
https://www.gnsolidscontrol.com/decanting-centrifuge 

https://www.gnsolidscontrol.com/industry-centrifuges 

Below are some general questions about centrifuge separation, but not limited to below:

1) Before entering into decanter centrifuge, where is the material coming from, and what treatment it have been down?

2) what is the solids & liquid percentage, and max. particle size before enter into centrifuge?

3) What kind of solids and liquid output you want to reach after centrifuge separation?

4) Handling capacity of centrifuge you want to reach?

and other information you can offer.

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.