GN Solids Control is a leading brand for drilling mud solids control equipment, drilling waste management equipment, and various types of replacement shaker screens. GN Solids Control is with over 10 years of experience in the separation industry, GN Solids Control is capable to make the most advanced type separation machines for 2-phase and 3-phase separation. GN Solids Control separation equipment are sold to more than 70 countries worldwide, like U.S.A, UK, UAE, PNG, Canada, Australia, Singapore, Malaysia, Mexico, India, Indonesia, Brazil, Chile, Russia, Oman, Egypt, Algeria, Gabon, etc…

Recently, GN Solids Control received inquire from a client to ask for 3-phase decanter centrifuge, Centrifuge feeding pump, screw pump GNG20-055B, Sludge vacuum pump and accessories for the mentioned equipment:

The client is interested in 18 inch decanter centrifuge, GN Solids Control recommend the GNSX-450 three phase decanter centrifuge. Feeding pump is GNG20-055B screw pump. As the GNSX-450 three phase decanter centrifuge is with VFD control panel, 15m cables for main drive motor, back drive motor, oil pump and feed pump motor are recommended. Regarding hoses, the client asked for 10 m hose for screw pump feeding for connect to the centrifuge.

GN Solids Control offered Telescopic skid an optional item. Telescopic skid is suggested to hold the decanter centrifuge, VFD control panel, and feeding screw pump. Clients can also tell GN Solids Control the cable length and hose length they need. The Telescopic skid can be fell down during shipment. And it can be lift up during centrifuge operation to lift the liquid out let port, and in this case, the recovered liquid from centrifuge can flow back to mud system or mud tank by gravity. It can save a transfer pump.

Sludge vacuum pump model is GNSP-20B. It is a portable type vacuum pump with its accessories such as cables and all needed hoses (from the pit to the pump, hose length of suction is 20 Meters and from the pump to the transition tank, hose length of discharge is 50 Meters) per jobsite request.

Furthermore, a transition tank with its agitators all accessories are included in the proposal for full function.
The system will use a sludge vacuum pump (with all its accessories) to suck oil sludge from the pit to transition tank. The Mixture will be mixed with the agitator in the transition tank. A centrifuge feeding pump, screw-pump is used to suck the mixture from the transition tank to the centrifuge. The centrifuge will be fixed on the telescopic skid.

14 inch decanter centrifuge is the most popular centrifuge in oil and gas drilling field. The 14 inch decanter centrifuge for oilfield can be equipped as high speed centrifuge for fine solids separation, like to remove the ultrafine solids in drilling fluids in order to reduce the mud weight, or equipped as middle speed / low speed centrifuge to recover barite. The recovered barite can be used again by adding into drilling mud system by the mud mixing hopper system.

GN Solids Control is capacity to make different standard of 14 inch decanter centrifuge to suit for different clients and suit for different applications.

GN Solids Control is only focusing on international market and China domestic big customers. High quality and reliable services is the most importance. Below are only some differences of GN Solids Control decanter centrifuges with other centrifuge suppliers:

1) Bowl material: Other companies normally make centrifuge bowl from SS316 or SS304 by casting. While GN Solids Control make centrifuge bowl from Duplex Stainless Steel 2304 by centrifugal casting. The material grade and production technology are both higher than others.

2) Screw Protection: Other companies make Screw Protection by Tungsten Carbide welding. It is easy for production. But it is easy to be worn out. And after wearing out, it is difficult for maintenance.
While GN Solids Control makes Screw Protection by Tungsten Carbide Tiles. The Tungsten Carbide Tiles can service for longer life time, and it is easier for replacement.

3) VFD control panel: Other centrifuge companies are normally not capacity to make control panels. They need to outsource control panels for their centrifuges. Most centrifuge suppliers normally make flame proof VFD panel with fan for cooling. Few companies have experience for positive pressurized VFD control panel, never mention experience for VFD panel with vortex cooling system or EX A/C cooling system. VFD panel material is normally made from carbon steel.

GN Solids Control has his own electrical control panel department. GN Solids Control VFD panels are positive pressurized, with EX A/C cooling system to suit for high ambient temperature areas. GN Solids Control VFD control panel panel material is stainless steel.

Last week, a decanter centrifuge for oil sludge treatment was dispatched from GN Solids Control factory in Beijing. The decanter centrifuge for oil sludge treatment will be shipped to a client in Brunei.

The model of the decanter centrifuge for Oil Sludge Treatment to Brunei is GNLW363C-VFD. It is the most popular 14inch decanter centrifuge with positive pressurized VFD control panel. GN Solids Control is capacity to offer different standard and different designs VFD control panel to suit for different clients and different application. GN Solids Control can offer Explosion proof VFD panel for Zone 1 or Zone 2 applications.

GN Solids Control can offer positive pressurized VFD panel with explosion proof air conditioner cooling system for high ambient temperature area up to +55 C degree, or with compact design vortex cooling system for ambient temperature areas up to +40 C degree. Other centrifuge suppliers usually offer VFD control panel with only 1 VFD control for main motor drive, or 2 VFD drives for main drive motor and back motor. But GN Solids Control standard design is 3 VFD drives for main drive motor, back drive motor, and for the feeding screw pump motor.

Besides VFD control centrifuge with different cooling system, GN Solids Control is also capacity to make fixed speed control decanter centrifuge and high standard full hydraulic drive decanter centrifuge (FHD decanter centrifuge). The full hydraulic drive (FHD) system GN Solids Control is applied for FHD decanter centrifuge is imported from Viscotherm from European, which is one of the most famous brand offer hydraulic driving system.

The decanter centrifuge can be used to treat oil sludge, which is generated from oil and gas drilling oil base mud, from refinery plants, from tank cleaner, from the tank bottom sludge, from crude oil tanks, from vessel tanks. These are only some applications of GN Solids Control decanter centrifuge. The decanter centrifuge also can be used for other applications in other field. Like for dewater separation, for waste oil and water treatment, for barite recovery, etc…

Some sets of Drilling fluids vacuum degasser and some sets of mud cleaner are dispatched to the seaport. They will be shipped to Middle East to support the projects there. GN Solids Control Vacuum Degasser is a special solids control equipment to process the drilling mud. The vacuum Degasser is usually used after shale shaker separator, but before hydra cyclone separator (mud cleaner, desander, desilter).

GN Solids Control Vacuum Degasser is special solids control equipment used to treat the gas in the drilling fluids. GN Solids Control Vacuum Degasser can be used to treat and remove various gas of invasive drilling efficiently. Vacuum degasser is a necessary product to recover drilling mud gravity, to stabilize drilling mud viscosity and reduce the drilling cost. Also, at the same time GN Solids Control Vacuum Degasser can be used as a heavy-duty mud agitator, which can be used for all types of drilling fluids circulation and purification system. The design and the structure of GN Solids Control Vacuum Degasser are scientific and rational. In this reason, it is able to achieve an effective gas-liquid separation, filter out impurities and to ensure that the exhaust pipe is always smooth.

Oilfield mud cleaner is 3 in 1 equipment for drilling mud purification. Mud cleaner is the combination of a shale shaker, desander cone separator and desilter cone separator. It has the function of shale shaker, desander and desilter. GN Solids Control makes single deck mud cleaner for oil field, and double deck cleaner for oil sludge separation and for non-oil field separation. The single deck shale shaker is more popular for drilling mud solids control equipment. GN Solids Control makes 2-panel shale shaker, 3-panel shale shaker, and 4-panel shale shaker for oilfield mud cleaner separator.

Besides vacuum degasser and mud cleaner, GN Solids Control makes full line solids control equipment, including but not limited to shale shaker, mud gas separator, decanter centrifuge, jet mud mixer, mud agitator and various transfer and feed pumps.

GN Solids Control makes high quality Vertical Centrifuge Cuttings dryer (VCD) System, which is widely used for oil and gas drilling rigs for drilling mud and drilling cuttings treatment. It is specially suits for oil base mud and oilbase cuttings treatment. For water base mud and cuttings, high G drying shaker is normally been used.

Below are some benefits of GN Solids Control Vertical Centrifuge Cuttings dryer (VCD) System:
1) GN Solids Control Vertical Centrifuge cuttings dryer (VCD) System can Maximize OBM recovery from drilled cutting for re-use.
2) GN Solids Control Vertical Centrifuge cuttings dryer (VCD) System can reduce the oil retention on discarded solids (OOC%, percentage of oil on cuttings) to less than 5% by weight.
3) GN Solids Control Vertical Centrifuge cuttings dryer (VCD) System can reduce the required cutting skips no.
4) GN Solids Control Vertical Centrifuge cuttings dryer (VCD) System can reduce final discarded solids volume.
5) GN Solids Control Vertical Centrifuge cuttings dryer (VCD) System can convert drilled OBM cutting into dry discarded solids due to high centrifugal force generated.

Besides Vertical Centrifuge cuttings dryer system, GN Solids Control makes full line drilling mud solids control equipment, drilling waste management equipment, as well as full package mud treatment system. Below is the major processing equipment and system GN Solids Control can make, but GN Solids Control production line is not only limited to below products:

Solids Control Equipment: Shale Shaker, Mud Cleaner, Desander, Desilter, Centrifuge, Mud Agitator, Mixing Hopper, Flare Igniter, Centrifugal Pump, Degassers etc.

Drilling Waste Management: Vertical Cuttings Dryer, High G Drying Shale Shaker, Waste Decanter Centrifuge, Dewatering Unit, Screw Conveyor, Screw Pump, Drilling cuttings Solidification Unit etc.

Full package Mud System: Oil Drilling Solids Control System, HDD and CBM drilling mud recycling system, Bored Pile and TBM slurry separation system, drilling waste management system, mining and industry solids and liquid separation system, Dredging slurry separation system.

GN Solids Control sludge Vacuum Pump is capable to be used at on shore drilling rigs and offshore drilling rigs. As the screen vacuum unit is 100% powered by air, there is no electrical components involved in the unit, it can suits for hazardous areas for zone 0, zone 1 and zone 2 applications. With special structure design, GN Solids Control sludge Vacuum Pump can be used at tough environmental for solids transfer．

GN Solids Control sludge Vacuum Pump has features of high working performance and less maintenance. GN Solids Control sludge Vacuum Pump can transfer material (liquid, slurry, and solids) with high gravity and high density, solids content max. up to 80%. GN Solids Control sludge Vacuum Pump is especially suitable for offshore drilling platform. As the offshore drilling platform has higher request for explosion proof standard. As the pump is 100% driven by air, as the limitation of air compressor, the flow rate of vacuum pump is not big. Group Pumps of combination of 2 or 4 or more vacuum pumps are available for higher flowrate, with just one suction and one discharge.

Besides sludge Vacuum Pump, GN Solids Control can offer another equipment with vacuum technology, it is vacuum screen unit. Most of the big drilling rigs are using 3 ~ 4 shale shakers and probably another additional shale shaker as a Mud Cleaner with Desander & Desilter on top. 1 set GN screen vacuum unit can be connected to max. 3 sets shale shaker, but driving by only a set air compressor. If operators want 2 shale shakers to use GN vacuum screen technology, they only need 1 vacuum screen unit, and they will need 2 catch pans under the outside screen of the 2 shale shakers. If clients want 4 shale shakers or totally the 6 shale shakers to use GN screen vacuum unit technology, they will need to use 2 units. And each shale shaker connected to GN screen vacuum unit should be equipped a catch pan.

Mud shear hopper system is used to prepare and mixing new qualified drilling fluids for drilling activities. GN Solids Control is capacity to make standard and customized mud mixing and shearing system to suit for different clients and jobs applications.

GN Solids Control can make electrical motor driven mud mixing and shearing system, as well as the diesel engine driving mud shearing and mixing system. Both the electrical driven and diesel engine driven system are explosion proof standard to suit for hazardous applications for zone 1 and zone 2 applications. And also GN Solids Control mud mixing and shearing system is design and made to applied with DNV2.7-1 lifting standard to suit for offshore applications.

GN Solids Control mud shearing hopper system is composed of mixing tank, walkways and handrails, Ex-proof diesel engine driven unit, stainless steel shearing hopper and pipelines, all components and items are allocated in a skid with compact structure and reasonable layout. It is easy to install and disassembly.

Working Procedure of GN diesel driven shearing hopper system is below:
A centrifugal pump is driven by Ex-proof diesel engine as feeding pump, it is used to convey drilling fluid to be mixed in mixing tank. And drilling fluid is sucked from tank to shearing hopper by diesel engine. Chemicals to be added to drilling fluids are fed from top of hopper, and well mixed fluid falls into tank, and to be re-used via pipelines connected per client’s jobsite design.

Clients can use the T-pipe at mixing pump inlet and jet hopper outlet for proportioning the fluids in tanks or from outside per jobsite requests.

100hp is the most popular size of diesel engine driven shearing hopper system. Below are the features of the diesel engine driven shearing hopper system:
1) The shearing hopper and piping material can be 316/316L stainless steel to suit for chemicals.
2) Diesel Engineer power is 100hp explosion proof standard for zone 1 applications.
3) Sparking arrestor is equipped in the diesel engine driven system.
4) Driven pump type is centrifugal pump with different sizes for optional.
5) Suction hose and Discharge Hose can be offered as required in length and to fit all rig connections.
6) Mixing tank can be 50bbls, or other sizes per clients’ request.

GN Solids Control makes vacuum type degasser and centrifugal type degasser for oil and gas drilling mud solids control system.

GNLCQ300A centrifugal degasser is a new type degasser. The centrifugal degasser is designed to treat gas cut drilling mud in solids control system. Normally the degasser is used after shale shaker. It is widely used in various solids control system, and it is very important for recovering mud weight, stabilize mud viscosity performance, reduce drilling cost.

GNZCQ Vacuum Degasser is a special-purpose deviceto treat gas in the drilling fluids. Vacuum Degasser can remove various gas invasive in drilling mud quickly. Vacuum degasser is very important for returning mud gravity, stabilizing mud viscosity and reducing drilling cost. Also, also, the vacuum degasser can be used as a heavy-duty agitating device. Vacuum degasser is widely used in all types of mud circulation and purification system. GN vaccum degasser is with a compact design. And it is able to achieve an effective gas liquid separation.

This week, a client is going to issue orders to buy GN Vacuum Degasser. They are interested in the Model GNZCQ270B for processing capacity 1200GPM. They prefer GN vacuum degasser. As GN Vacuum Degasser is a self-contained unit. The unit is no need feeding pump.

But they have question especially for the self-feeding pump data & NPSH of the pump. Because the suction line the client will be use will be a 5 m horizontal pipe with 2 ea elbow 90 degree from the suction point to vacuum degasser equipment.
The pump in vacuum degasser is vacuum type pump with Negative pressure.  NPSH is net positive suction head. NPSH is not applicable for vacuum pump.

GN Solids Control confirms the client that, GNZCQ270B can meet the client’s situation: suction line will be 5m horizontal pipe with 2 elbow 90 degree from the suction point to vacuum degasser equipment. But lifting distance (from liquid surface to pump) should be less than 2.5m.

Shale shaker is first stage solids control equipment in drilling mud purification and recycling system. Shale shaker separator is also known as the major solids control equipment in drilling mud system. The performance of the shale shaker has big affection on performance of the entire solids control system.

A batch of shale shaker separators has been ready for shipment last week. The shale shakers are ordered for a Russian client for their oil rig mud system. The shale shakers will be used to replace the old shale shakers in the client’s old drilling mud solids control system.

The shale shaker model for the project is the most hot sale 4-panel shale shaker. The shale shaker is equipped with high quality composite frame pretension screens. The composite frame pretension shale shaker screens are designed and made by the shaker manufacturer – GN Solids Control. It gives clients more benefits. As shale shaker screen is the most cost wearing spare parts for shale shakers, and even the most cost much wearing spare parts for drilling mud solids control recycling system. As GN Solids Control are both the shale shaker original manufacturer and the shale shaker screen manufacturer, clients can get better price supporting for shale shaker screens from GN Solids Control.

The composite frame pretension shale shaker screens can enable the shale shaker have a better and more reliable separation performance and longer screen servicing time under high temperature drilling mud.

The composite frame pretension shale shaker screens are mounted by wedges. Unlike fixing screens by bolts, the wedge type is for easy operation. It helps the shale shaker operators to change replacement screens fast and easier.

Another advantages of GN shale shaker screen is that, the shaker deck angle changing system is Synchronous lifting adjustment. Synchronous lifting adjustment for shaker deck screw is GN patent design. The operators do not need to stop the shale shaker, but they can change shale shaker deck angle during the shaker is running. And when the operators change shaker deck angle from either side of the shale shaker deck, both side angle change be lift or fall on the exact same degree. It saves time. Time is money for activities.

Mud agitator is designed to agitating the drilling fluids in mud tanks. Mud agitator is composed of motor, gearbox reducer, shaft and impeller. It is a high efficiency unit for mud mixing in solids control mud system. GN Solids Control offers all sizes of drilling mud agitators for different sizes and functional mud tanks, like shale shaker tank (slope tank), suction tank, mixing tank, storage tank, pill tank, water tank, trip tank, marine tank, etc…Both horizontal and vertical type drilling mud agitator are available.

According to the design type of gearbox reduce, there are 2 major types of mud agitator:
1) Worm and gearbox reducer mud agitator. This type agitator is with compact design and smaller footprint. Its cost is lower but the efficiency is less.
2) Helical bevel gearbox reducer mud agitator. It is heavy duty type. This type agitator is with a bigger footprint for the same horse power motor but with much higher stir efficiency than worm gearbox type. Its cost is higher.

In order to choose the right model of mud agitator of the mud tanks, below information is requested before ordering agitators:
1) The dimension of the mud tank (L×W×H).
2) The weight of the drilling mud
3) Voltage of the the power supply for driven motors
4) Impeller type: canted blade type or flat blade type. Mostly it is canted blade impellers. The canted blade impeller is better stir performance compared with flat blade impeller.
5) Number of mud agitators requested for the sizing mud tank.
6) Required TOR. TOR means the turn over rate.

The TOR is the number of seconds required for the impeller to pump the full volume within the sizing area. Remember that a lower TOR indicates more agitation because the tank turns over in fewer seconds. TOR should be in the range of 35 to 90 seconds for all “sizing areas”. Although, for the suction tank, it should have a TOR closer to 90 (less agitation) to prevent aeration.