Drilling equipments Company

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 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

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.

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 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.

Recently, GN Solid Control has successfully finished a set of mini size sludge vacuum pump and mini size decanter centrifuge, they will be exported for a foreign customer. They will be used for a tank cleaning project.

The solids and sludge vacuum pump is a mini size with portable design, the model code is GNSP-10. The mini size vacuum pump is equipped with tires for easy movement. It will be used to transfer the waste slurry which is generated from tank cleaning works. And the decanter centrifuge model code is GNLW224. It is a 9 inch mini size bowl centrifuge with high speed for solid and liquid separation. GN Solids Control sludge vacuum pump and decanter centrifuge are widely used in China and outside China at various job sites. Clients are very happy with their performance.

GN Solids Control makes various sizes sludge vacuum pump for solids, sludge, powder or liquid transfer. It is a kind of vacuum pump that forms a vacuum in the tank through pneumatic, then sucks the materials, and then inflates the tank into positive pressure to discharge the materials from the tank. Because its working principle is pneumatic and no power supply is required, GN Solids Control vacuum pump can be used in explosion-proof areas and hazardous areas.

Due to the unique venturi device of GN Solids Control solid vacuum pump, it can produce a vacuum effect of 25 inches Hg (mercury column) under the condition of strong air flow, empty the air in the tank and then suck the materials, so there are almost no wear parts. It is suitable for the transportation of high-density materials and materials with solid content exceeding 80%, and its stable performance enables it to operate in the most difficult environment.

GN Solids Control 9 inch decanter centrifuge is a small bowl centrifuge, which are mainly used under the working conditions of small treatment or limited site, and are also ideal equipment for centrifuge experimental test. The mini side centrifuge is mainly used to treat the oily sludge extracted from the oil tank by the vacuum pump for solid-liquid separation. According to different customer needs, our company can also provide customers with three different control modes; Constant speed control, frequency conversion control and full hydraulic control. In addition to centrifuges, our company can also provide customers with professional chemical dosing devices, which can be used with centrifuges to obtain better solid-liquid separation effect.

Mud tank is a basic device for drilling mud solids control system. Drilling mud tank looks sample. It seems easy for fabrication. The difficulties lie in design and pipelines to allocate all equipment. It is difficult to design the mud tanks to suit for clients demands on requested separation equipment and mixing system.

As every jobsite has different request for mud tank size, the number of mud tanks, mud tank usable capacity, the layout of mud tanks, and most clients have different request on separation equipment and mixing equipment, they request different models and numbers of shale shaker, desander, desilter, decanter centrifuge, jet mud mixer, pumps, etc… In this case, nearly every mud system is different. It is a big work to make the mud tank system designs and drawings, and need to change the designs and drawings again and again during the communication with clients. It is a huge work to make full package mud tank systems. It has high request on the manufacturers’ capability.

Shale shaker is a basic separation equipment. There are various types of shale shakers, like 3-panel shale shaker, 4-panel shale shaker, single deck shale shaker, double deck shale shaker, etc… Shale shaker is nearly used for all separation system. And it is the 1st stage solids control separation equipment in mud systems.

There is normally a sand trap under the shale shaker. The drilling fluid enters the drilling fluid mud tank system after passing through the shale shaker screen. The sand trap plays a very important role in the daily use of 80 mesh screen cloth or coarser screen cloth.

The bottom of the sand trap should be inclined by 45 ° to promote the sedimentation of large sand particles and rapid discharge outside the tank. The bottom inclined by 45 ° or more has a self-cleaning effect. The sand trap shall not be stirred, but shall enter the lower tank through overflow. Both linear and balanced elliptical motion drilling fluid shale shakers have this technology. Fine cobalt chips generally do not have enough residence time to precipitate. When cheap drilling fluid is used, the grit pump shall pump 1 ~ 2 times every 1H. At present, ultra-fine mesh screen cloth is widely used. Due to the expensive waste treatment cost and environmental concerns, such discharge is not allowed and the cost is limited.

After shale shaker, there are various types of separation equipment, clients can choose per jobsite demands and jobsite situation, like 3-in-1 mud cleaner, desander, desilter, vacuum degasser, middle speed decanter centrifuge, high speed decanter centrifuge, jet mud mixing unit, etc…

Some sets of drilling mud solids control decanter centrifuge and drilling waste vertical cuttings dryer are ready. They are customized for an international drilling company. It is not the 1st time the client buy from us. All their drilling rigs are equipped with GN Solids Control drilling waste management equipment. There is a fixed speed decanter centrifuge, a VFD decanter centrifuge and a vertical cuttings dryer for a drilling rig for drilling mud and drilling cuttings treatment.

There are fixed speed decanter centrifuges, Variable frequency speed decanter centrifuges included in the project. Even for the fixed speed decanter centrifuge, GN Solids Control can offer another set of pulley and belt for another fixed speed control.

GN Solids Control offer German brand NETZSCH pump as feeding pump for decanter centrifuges. The feeding pump screw pump control is inside the decanter centrifuge control panel. There are interlock between decanter centrifuge main motor and back drive motor, and the pump motor. As the 3 motors must be started and stopped in order. It is to protect decanter centrifuge from overload. With the interlock control the feeding pump can be stopped automatically in case of too much mud feeding.

There is a lubricating oil system for the vertical cuttings dryer. The lubricating system must be started before the vertical cuttings dryer main motor start running. The oil system drive pump motor is included in the vertical cuttings dryer control panel to start oil pump for some minutes and then to start the main motor. GN Solids Control offers German brand NETZSCH pump as flush pump for vertical cuttings dryer. Screw pump flush pump control is included inside the vertical cuttings dryer control panel.

GN Solids Control offers telescopic skid for decanter centrifuges, VFD control panel and screw pump are mounted on the skid. GN Solids Control offers heavy duty skid for vertical cuttings dryer. Screw conveyors are used together with decanter centrifuges and vertical cuttings dryer to transfer drill cuttings.

Sometimes, clients or users may contact GN Solids Control to ask for assistance on GN equipment operation.

Recently, a client show own GN Solids Control decanter centrifuge at their rigs sites contact GN and ask GN to help with some technical assistance. The VFD decanter centrifuge is used at their drilling mud solids control system. They said it is related to a small issue on GNLW363CG-VFD Decanter Centrifuge. They said their issue is that the set RPM Bowl speed is reached very slow, about 3 – 5 minutes to reach high speed RPM.

They want to know is that normal to take such time to achieve the set high speed? They want to know what is the reason to cause the slow speed-up? Is it caused by some safety settings? They also want to know is there any way to improve the VFD response?

GN Solids Control gave reply to the client that, the pre-setting of GN Solids Control on VFD control panel is 5 minutes to reach 3200rpm. The slow speed-up is to avoid trip off during running. In this case, it should take around 3 minutes to reach 2000RPM. If the time is too long, it is abnormal. The parameter can be set on the VFD drives. If clients want more assistance on the VFD drive parameters settings, they can send photos of the decanter centrifuge VFD panel nameplate. GN Solids Control will check the original parameter settings before delivery from GN Solids Control factory, and give clients instruction about how to process.

The clients give their thanks to GN Solids Control about the the prompt answer. They accept the time. They said all fine if everything is made to protect the system from overloading. They are just a little bit worry not to be some safe limitation caused by a failure or so.

Besides decanter centrifuge, GN Solids Control also make shale shaker, mud cleaner, desander, desilter, jet mud mixer, vertical cuttings dryer, etc…