Author: desanderdesilter

The decanter centrifuge has a wide uses depending on different applications , it can be used for de – water hydrocyclone under flow , remove the drilling solids from active drilling mud , or revove colloidal solids particals in weighted drilling mud . The centrifuge can be used for unweighted drilling mud , while mud recycling again and again , the drilling mud will get heavier and heavier , then the heavier mud will be no good to reuse again .

 

There are different design of decanter centrifuge , according to separation size , there will be designed profor G force to reach separation point . G Force is a very important parameter for centrifuge application , while the G force get higher , the separation factor will get higher but will need higher standard to keep sure centrifuge screw and bowl to be suiltable of the G force . For a same decanter centrifuge , the higher G force will increase mud flow treatment capacity also . However , the increasing G force eventually reduces solids conveyance capacity due to torque limitation . As the g force increase , more and solids will be settled in the bowl bottom of inside , then solids will be more tightly and more conveyor or torque will be required to remove the solids out of bowl .

 

The solids dryness from decanter centrifuge can be adjustable by adjust fluids outlet height plate . The dryness is commonly considered as a direct indication of a centrifuge performance , but the test results has shown that the dryness of solids from centrifuge is more correctly as a fuction of partical size . The pond depth will control both fluids residence and cake dryness .If you increased pond depth , the residence time will increase separation and separation performance will be better . Any how this will be depending on the drilling condition and fix a suitable depth .

Related Arciels:

• Drill Cuttings Separation, DO IT with Chemicals
• GN Solids Control big quantity centrifugal pumps and control panel for customer
• Drilling Fluids for Drilling Project
• Mud Gun-Supportive Solids control equipment

Mining Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic material of an ore. For the contractors, tailings is an external cost of mining. More and more countries and governments keep developing the mine regulation on the environmental safe purpose and proper mine tailings pond solution is must required by laws. For a responsible company, Tailings dams are often the most significant environmental liability for a mining project. GN special designed slurry separation system can be used for tailings dam treatment from the tailings pond. Our engineer team will required a test report of the particle size of the solids and give you proper solution to less the burden of environment. For example, the shale shaker is different with oil & gas drilling used shale shaker, it is mining used shaker with big treating capacity. The shaker screen is polyurethane material which last longer than traditional stainless steel shaker screens. The desnder, desilter material is special made with ceremics insert. For coal and oil sands mining, tailings means fine waste suspended in water. GN dewatering unit with polymer mixing unit is applied for separation of fine solids under 5 microns. GN waste dewatering unit has been applied in over 50 countries in the world, the applications including oilfield waste management system, tunneling waste water treatment, mining tailings waste water dewatering, etc. Not only for mine tailings treatment, GN dewatering unit with dewatering centrifuge can be also used for diamond core drilling. GNLW223 dewatering centrifuge has been used in many countries in the world for mining diamond core drilling purpose. We also provide solids removal unit including the mini decanter centrifuge as a compact design system which can be applied for core drilling. GN solids America( with headquarter GN solids control) will attend Global Petroleum Show in Canada, Calgary from June 9^th to 11^th, pls visit our booth and check our dewatering centrifuge for mining tails slurry separation.

Related Arciels:

• How area unit micro emulsions impacting the waste management business?
• Drilling cuttings transfer pump for drilling waste management
• 4 sets GNLW452 Centrifuge for fast barite recovery
• Design basics of the mud tank

Shale shaker screen is the essential part in filter solids from liquid, and it is disposable part in various drilling that need to replace all the time.

Because of the drilling fluid that contains corrosion, abrasiveness and heat,it needed to filter solid particles for long period time.  Generally speaking, the material of shaker screens are all constructed in stainless steel and the wire which disposed by heat treatment technology. The auxiliary support structure is made of steel plate, galvanized sheet, and others combined materials.

With the continuous development of science and technology, in order to enhancing the filter effect of screen, the corrugated- shape screen was developed. It is improved and upgraded from flat type screen, started to be implied in the mid-1990s.

 

Corrugated- shape screen synthesize the advantage of common crochet screen and orifice plate adhesion screen, but it is based on the structure size of shale shaker will not be changed, and the frequency and exciting force of vibration exciter will not be changed as well.

 

The advantage of the corrugated- shape shale shaker screen is that it breaks the limitation of traditional plate screen, because of the unique wave pattern of screen, it is not only has the service life increase and as well as filter effect of orifice plate adhesion screen by increase the filter area of screen more.

 

When the drilling fluid flow to the screen surface, the solid phase will flow to valley bottom of corrugation, vertical surface can provide more filter area for drilling fluid, so compared with flat surface screen, the wave screen has through capacity. The thruput is larger 30%~40% than orifice plate adhesion screen and other flat surface screens. And diamond screen increases the residence time of drilling fluid on the screen surface, has a better sieving effect.

Related Arciels:

• Vibration Patterns of Shale Shaker for Oilfield Site
• Oil Sludge Waste Treatment by GN High Speed Decanter Centrifuge with Chemicals for COSL Project
• Dual Centrifuge mud system for CPP
• GN Module Design of Waste Cuttings Management is Available

Screw conveyor name “ Auger ” also to delivery solids particals on drilling site . It will contains one set motor with low power requirement , cause the screw can working continuously , the working for transport solids will be continuous as per request and require minimal operator actually .

The screw conveyor normally used to delivery drilling cuttings from shale shaker from one point to another point depending on clients request . As the screw conveyor is steel material and mainly working to delivery straight away . The solids will be discharge under one end of screw conveyor to another screw conveyor or drilling cuttings storage . There are different length and diameters for screw conveyor depending on different applications . The diameter normally we have is 12 inch , 14 inch and 16 inch , the length of screw conveyor we have normally 24 ft , 36 ft and 48 ft . Any how , the size of screw conveyor can be customized .

There are horizontal screw conveyor to delivery solids horizontally and purpose is the delivery solids far away somewhere . Such as the screw conveyor for collecting drilling cuttings from shakers, it maybe 2 or 3 or even more shakers discharge need collection , we will choose an horizontal screw conveyor to collect solids from all shakers . If we use for feeding vertical cuttings dryer , we will have to choose an different layout. The screw conveyor need collect cuttings from one screw conveyor and feed drilling cuttings to dryer on top opening . The second screw conveyor will be goes from a low position to a high position by delivery solids from ground to top .

Other than screw conveyor , there are other equipment for solids transport Please contact GN Solids for inquiry or question .

Related Arciels:

• Solids control equipment for Russia drilling company
• GN Standard WBM Drilling Waste Management System Delivered to CNPC
• Maintenance highlights of decanter centrifuge
• Shale gas drilling mud system from China

Asia Pacific, following big brother’s step, been more and more focus on the environment protection, especially the industry who contribute to the GDP while at the same time, contribute more to turning all the people into air conditioner. Except the moral judgement, we are very glad to see the truth: The Chinese segment held the largest share of 41% of the Asia-Pacific drilling waste management market in 2013. Also other countries followed. Hope someday Chinese people can see the IPEC blue, again, without shutting down to have a fake view.

The leading players of this market

– Baker Hughes Incorporated

– Halliburton Company

– National Oilwell Varco

– Schlumberger Limited.

– Weatherford International Ltd

While also, very happy to find a lot of Chinese local drilling waste management companies join this mission. Supplying drying shaker, cuttings dryer, decanter centrifuge, and also whole solutions. GN Solids Control is one of the shining star, been chosen by Baker Hughes, and operates well. Also doing projects for shell.

The market has been segmented, in terms of services, into solids control, containment & handling, and treatment & disposal. In 2013, the treatment & disposal services held the largest market share of 39% of the Asia-Pacific drilling waste management market, followed by the containment & handling segment with a 33% share.

All these numbers change, implying the policy, the view, prospection change, after GDP concerning, money-saving concern, people finally find something more valualbe, themselves, the environment, the earth.

Cooperating with developed coutries suppliers, GN is doing far more than its ability to manufactur, now solidification unit, thermal desportion unit, also are imported to China by GN Solids Control cooperating to supply after sales service, maintaince, and one stop solutions.

 

Related Arciels:

• Equipments for Water based mud drilling cuttings treatment
• GN Manufactured Screen Conforms to API RP 13C
• Why Choose GN’s 4 Panel Shale Shaker for Solids Control
• GN Solids America Attended GPS Successfully in Canada

The fixed speed control panel is single speed control panel with starter / stop functions. Relatively speaking, this panel is easy to produce with lower cost, and the operation procedure is also very simple. For customers who only need single speed centrifuge like 3200rpm or 2700rpm or 2200rpm, may go to this single speed centrifuge with single speed control panel. However, if the experienced customer wants to achieve better performance, they may go to variable speed centrifuge with variable speed control panel. With this panel, the speed can be adjusted flexible from low speed to middle speed to high speed. Another, differential speed can also be adjusted for better performance.

GN Solids Control variable speed control panel with 3 units ABB frequency transducer, can adjust the speed in a very convenient way. The dimension of the control panel is about 1.5m X 0.8m X 1.7m.

 

For all other equipment with motor drive, all can be design into variable speed with ABB frequency transducer. Like variable speed screw conveyor, variable speed feeding screw pump, variable speed vertical cuttings dryer etc.

 

Variable speed screw conveyor with ABB transducer panel is widely used in drilling rigsite. The customer can adjust the drilling waste / drilling cuttings transportation speed in a good way.

Variable speed feeding pump for centrifuge with separate single ABB transducer panel is also very popular. In this case, the customer can easily change the feeding rate without effect from centrifuge.

Variable speed vertical cuttings dryer is really good idea because of the large motor will produce very high prompt current when starting. With this variable speed control panel, the big motor 75kw can be started smoothly and stably.

 

GN Solids Control have a professional electrician team who can design, research and produce electrical control panel for any motor drive equipment. If you need some help, pls contact us freely. Email: sales@gnsolidscontrol.com or visit GN website: http://www.gnsolidscontrol.com/

 

Related Arciels:

• Big Bowl Decanter Centrifuge in GPS 2015 Hall F – Booth 8503
• Containerized drilling waste management system for North Africa
• How Does the Cyclone Work as a Solids Control Equipment
• GN High G drying shaker working in Gabon drilling field

The drilling fluid filtering systemis function like human heart that provides zero-discharge oh drilling fluid.  Such system is a big ticket items and there are some facts need to consider before make purchase.

1) Type of drill you will be using
2) The drill rate
3) The type of solids
4) The length of your bore
5) The GPM (gallon per minute) of the pump
6) The mud tank volume that will need
7) The number of Hydrocyclones
8) The screen size and API number

These factors determine your usefor drilling fluid filtering system that is adequate enough to clean the mud and protect the components and the drill bit of the rig, pumps and mud cleaners.

Gallons per Minute: When deciding the size of a drilling fluid filtering system that you will need, it is best to double the amount your GPM Need.   For example: If you are pumping 250 gals, you would want consider with a 500-gpm unit.

Trailer or Skid mount: Depending on your requirements, drilling fluid filtering systems can be either trailer mounted or skid mounted. Trailer-mounted units require dedicated trailer (built to unit). Skid-mounted unit can be removed from trailer which releases the trailer for other jobs requirements.

Screen surface: larger screen surface area you have means more volume of drilling fluid that can be process and clean.

Screen selection: The mesh size (API #) of screens is measured by the number of opening per square inch on the screen. Various mesh sizes control the size of the debris that can be removing. The same mesh size will not work in every drilling condition. Sizes will vary depending on the size of the debris and the type of formations you are cleaning.

Shakers: There are three different kinds of shakers (orbital, elliptical and linear). Orbital is a circular motion and elliptical isn’t perfectly circular — it’s an ellipse or oval. Linear has vibration that is induced by a pair of eccentric (or eccentrically weighted) shafts turning in opposite directions. This type of arrangement allows for the development of straight line or linear motion that can also be produced in a positive (uphill) incline.
While each shaker has a specific place that it will stand-out from other choices such as unit selling price, the ability to process heavy clays and rock or fines and ultra-fines, our overall preference of choice is the linear.

Hydrocyclones: Depending on the size of the mud system you choose, the cone size will either be 4 or 10 in. Each size cone has a micron cut point, which is the size of the smallest particle that the cone can pull out. The 4 inch cones have a micron cut of 20 microns and the 10 inch. Have a 74 micron cut.

Decanter Centrifuge: build purpose to filter solids between 2-5 micron and main purpose to recover barite for re-use as additive back into the drilling fluid.  It operates in G centrifugal force that control in fixed or changeable RPM of rotate bowl to achieve separation.

Related Arciels:

• Diamond Drilling Mud System Introduction on Drilling Site
• Dewatering Technology for Mine tailings, Mine waste water
• GN Centrifugal Pump to Deliver Drilling Fluids
• GN High Capacity Mud Conditioner Stock Available for Urgent Request

Shale shaker is the first stage machine to clean drilling fluids out from wells, indispensible both in a solids control system for oil and gas and mud system for other kinds of drilling. Driven by dual motors, GN shale shaker is liner motion with adjustable G force max to 7.5 G. After treated by the shale shaker, the drilling fluids will be further treated by desander, desilter, mud cleaner, decanter centrifuge to keep it clean enough for recycling usage.

Normally, a shale shaker contains below main parts:

The vibrator motors are attached directly to the screen frame and positioned over the screening bed to maximize the G-forces transferred to the screen surfaces. Float mounts isolate the vibratory motion of the screen frame from the support structure. Screens are fixed on the screen bed by wedges ,which is much easier to operate and improve work efficiency. The adjustable while drilling (AWD) mechanism is achieved by one electric motor that allows adjustment of the screen bed angle between -1°and +5°(The two-panel shaker deck angel is fixed at +2° ).This combination of features maximizes the fluid-handling and solids-removal capabilities of the machine.

 

The drilling fluids from mud return line of the drilling rig feed into the buffer box, then over flow to the shaker deck and shaker screen. The shaker motor motivate the fluids flow from one side to the other side of the shaker. While moving ,the fluids will down the screen to the collection box and the cuttings are discharged at the other end of the shaker. What’s more, the desander cones, desilter cones, or both of them can be added into the shale shaker installed on a frame fixed over the shale shaker. According to the quantity of cones, different models of shale shaker will be selected as underflow shaker.

Related Arciels:

• A New ERA of GN, after OTC 2015
• Drilling Fluids Recycling Equipment on Drilling Site
• 20ft containerized flocculent units training course
• The 5 steps purify drilling mud
• GN Solids America and GN Solids Control Succeeded in OTC2015

Centrifugal pumps are also called sand pumps. They are used as a very important devise for transporting drilling mud from one place to another. In oil and gas drilling industry, sand pumps are used for feeding the desanders and desilters, and also used for jet mud mixing system for feeding the hopper drilling mud.

Depends on the requested capacity, the sand pumps are designed in different capacities for different applications. Normally, in a same solids control system, the centrifugal pump for feeding desander and desilter are of same model. Like GN’s model, in the model code, you could find the main specifications of inlet, outlet and impeller.

In the standard layout, the first equipment is shale shaker, and the second is degasser. The degasser is used to delete the gas bubbles in the drilling mud, therefore, it also helps to improve the efficiency of the centrifugal pumps and protect them as well. After the solids control centrifuge, comes the jet mud mixer system. The centrifugal pumps are also used as mixing pumps for mixing hoppers.

A good centrifugal pump with a long service life is decided by several factors: the reasonable design and the good material. GN Solids Control is China leading manufacturer of solids control and waste management systems and equipments, together with GN systems, GNSB series centrifugal pumps were sold to more than 60 countries and regions in the world. And for GNSB centrifugal pumps, they are using stainless steel mechanical seals for a longer service life.

Besides centrifugal pumps, GN also has submersible slurry pump, screw pump, shear pump and etc available. Those pumps are used for feeding the solids control equipments in a system, like the centrifuges, shearing jet mixer, or to transport mud from mud pit in cases of HDD or CBM or Piling. In a word, GN could provide high quality turn-key solution for solids control and waste management systems for the end users.

 

Related Arciels:

• The need-to-know of shale shaker
• Hydroclone For Desander
• GN Presentation
• Oil based drilling waste harmless treatment & safety disposal — Add chemical

Among all the solids control and waste management equipment used for oil and gas drilling, the centrifuge is of the most difficult one to produce because of the preciseness and the performance. As the solids control manufacturer who ranks in the first place second to none in China, GN Solids Control is very specialized in the centrifuges, especially the 14 inch bowl decanting centrifuge.

This 14 inch bowl decanting centrifuge is a popular size centrifuge all over the world for applications in oil and gas industry. For this same size, GN provide 4 models, GNLW363CG, and GNLW363CG-VFD premium configurations and, GNLW363CD and GNLW363CG-VFD as economic configurations.

For Premium configurations: the premium configuration of decanter centrifuge GNLW363CG, they use better and stronger material for bowl, as SS2205 stainless steel made by centrifugal force. And the impeller protection tiles are made of special material which is both anti-corrosion and strong, which is called the ceramic in steel while steel in ceramic, a combination of the advantages of ceramic and steel. SKF bearings, for longer service life and better performance…and etc.

 

For both premium and economic configurations, GN has VFD control panel available, enable the rotation speed to be possible from 0 to 3200RPM. GN Solids Control is the first solids control manufacturer who can make the positive pressurized VFD control panel, and this method is the most popular in the world for time being and safer than flame proof solution especially in high temperature conditions.

 

GNLW363CG Premium Configuration is commonly used in Middle East, in the next month, in an Oil Exhibition held in May in Tehran, GN will show one set of newest design decanter centrifuge for Persian Gulf customers. May you have interest, pls feel free to contact us at our website or visit our factory near to Beijing Airport.

Related Arciels:

• GN Solids America LLC on 2015 OTC Show with Its Headquarter in China
• GN 1000pcs Shaker Screen for Middle East drilling company
• GN Solids Control dispatching equipment to overseas market
• GN Drilling Cuttings Management System Utilization for Offshore Project