Desander Desilter

Situated near to Beijing China Tower and Beijing International Airport, Hebei GN Solids Control enjoys a convenient location to attract foreign customers to visit GN factory and to established relationship. As the first API certified manufacturer of solid control equipment and system in China, GN solids control has a lot to say on the solids control system and equipment in oil and gas drilling field. Since established, GN has stick to the policy of striving higher quality and better service. With several year’s hard work, GN has also been certified by the CE by DNV. All these certificates indicates that GN Solids Control is a company worthy of trust and reliance.

 

GN manufactures and supplies solids control system for oil and gas drilling in various depth. In the whole set of solids control system for oil and gas drilling, generally there will be four stage treating equipment including shale shaker(1^st stage), desander(2^nd stage), desilter(3^rd stage), decanter centrifuge(4^th stage). Alternatively, the desander and desilter can be replaced by the mud cleaner with the combination of desander cyclones and desilter cyclone. And if the drilling is too deep, two sets of decanter centrifuge will be used. The one is medium speed, and the other is high speed decanter centrifuge. Beside solids control system, GN also supplies mud system for various kinds of drilling, and drilling waste management system for drilling cuttings.

 

Besides high quality product, GN also supplies considerate service:

Pre-Sales: Free consultancy and design according to clients requirements, provide optimal proposal for individual clients.
After Sales : Guarantee & Commissioning: GN Provide 1 year guarantee and free service for first time commissioning of system and training up clients engineer.
Spare Parts: GN always have spare parts available in stock to ensure fast delivery.

Like an increasingly more important drilling area, TBM plays a huge role in urban buildings in many nations. Therefore the drilling mud system for TBM becomes increasingly popular. As top manufacturer for solids control systems and waste management systems in China, GN Solids Control have ever began business in HDD and TBM area, and today GN offer more appropriate and modern solutions to meet those needs.

 

For Tunnel Boring Machines, which in a nutshell is TBM, the conventional for drilling mud is high. Within this system GN designed and manufactured for that TBM contactor, there’s a GN Double Deck Shale Shaker, a GNZJ594-3S16N Mud Cleaner, a 20ft container GN Dewatering Unit, a GNLW363BG-VFD Decanter Centrifuge as well as their necessary pumps, as well as an extra tank for arranging the drilling mud for entering the drilling system.

 

Each equipment’s functions:

 

1. GN Double Deck shale shaker. This shale shaker has 2 layers of screens, and also the lower layer’s screen is a lot finer the low layer. Then your drilling mud might be regarded as two times treated through the shale shaker, with only a little space occupied.

 

2. GNZJ-3S16N mud cleaner, a mix of desander cones, desilter cones and shale shaker, desander cones and desilter cones could separate out solids contaminants bigger than 20 microns, and also the API 200 drying screen can help dispose large contaminants.

 

3. GN 20ft Container Dewatering unit. With the addition of some chemicals in to the drilling mud, the flocculation helps you to collect the more compact contaminants into bigger contaminants, after treated by GNLW363BG-VFD high-speed centrifuge.

 

4. Well treated drilling mud with ideal proportion then makes its way into the arranging tank for later in to the TBM drilling system.

 

5. Besides all above pointed out, this customer also purchased another group of GN double deck shale shaker and GNZJ594E-3S16N as backup.

 

Lately, GN has produced several teams of such systems for clients in various areas and regions. For those who have interest or similar need, please get in touch freely.

Lately, GN’s drying shale shaker system has finished its commission. As GN stay with quality and repair, best of luck is just looked over before delivery from GN factory, and complex mud system GN provides commissioning service by dispatching engineers towards the working site.

 

As proven within the below introduction, the mud cleaner is installed between 2 models of shale shaker. It’s not general layout, once we have spoken that for any solids control systemor perhaps a mud system, mud cleaner (normally the alternative of a desnader and desilter) within the next stage to process drilling mud after shale shaker. Even though it is specifically created by GN engineer using the thought on narrow space within the working site, and fully thinking around the pipe connection. GN engineer strongly and thoroughly modified the overall design by finding the mud cleaner between 2 models of shale shakers. The drilling mud pumped out of the well is going to be given individually towards the 2 shale shakes for treatment, and they pumped in to the mud cleaner for more process.

 

Regarding towards the shale shaker, to safeguard it from damage, its deck is locked throughout transportation. Prior to the trial running, the operator need fixed the shale shaker on the top from the mud tank and unlock when. GN shale shaker‘s vibration motor originates from famous label Italia OLI or Martin with explosion -proof consideration for performance and safety. GN is first API licensed solids Control Company in China. Near the above two features, Simple structure is among the options that come with the GN’s shale shaker, the consumer can certainly master how you can operate it and perform the commissioning themselves. Concerning the control panel, GN provides electric diagram, the operator can begin and switch from the shale shaker without an excessive amount of electrical understanding.

As GN produces increasingly more solids control tools and drilling waste management systems to fulfill clients altering demands on drilling fields or Non-search fields, clients have greater and greater demands on GN Solids Control that is supplying them the required costume parts for example shale shaker screens.

 

Now GN will quickly establish his new factory to meet the requirements of huge quantity shaker screens. Around the finish of the year, GN new branch factory can help GN to create a lot more shale shaker screens, which new branch clients are quite close to GN Solids Control Company. It’s this kind of very good news for GN as well as for GN clients.

 

Usually, GN can establish from 5000 pieces shale shaker screens to eight 1000 pieces shale shaker screens each month, however, thinking about the big need this manufacturing capacity isn’t enough. Anyway, based on new factory, GN will solve these complaints perfectly well, and GN will introduce many advanced CNC machines to enhance the development, in addition to hire more knowledgeable employees to focusing on this special area.

 

For GN Solids Control, a myriad of shale shaker screens could be created, like the hook strip flat screens, the pyramid screens, hook strip soft screens and steel frame screens etc.

 

If you’re able to title the screen, then GN will design and manufacture them. The great characteristics which are adopted strictly by GN engineers, therefore the world most well-known brands could be exchangeable and carried out well on many different shale shakers. By utilizing GN shale shaker screens, our clients cannot only keep your same performance because the renowned brands screens, but additionally can same much cash around the cost. For this reason our clients always call GN shale shaker screens economical.

 

With lots of effective encounters, GN has over 60 countries’ clients which are using his shaker screens, so we believe case the great start of GN shaker screens, later on increasingly more clients may have the chance to become familiar with GN.

Normally for 1000HP drilling rig, or for the drilling rigs drilling holes upto 3000~4000m; we recommend 200cubic meters mud systems.

The system contains two linear motion shale shaker, GNZS703 / GNZS594, then a GNZCQ270 vaccum degasser, one GNZJ703-2S12N / GNZJ594-2S12N mud cleaner.

Then for optional, we can have decanter centrifuge, company with feeding screw pump. Depends on the different drilling site.

The system get 4 mud tanks, one for cleaning, one for mixing, and two mud tanks for storage. Normally we get tandom jet mud mixer on the mixing tank, while keep all clean tanks or compartments mixable. The mixed mud can reach all the clean mud, and can be transfered as required.

The centrifuges for option:

GNLW452 18inch big bowl centrifuge with 1800rpm middle speed for bariter recovery

GNLW363 14inch centrifuge with different fixed speed, or VFD panel for high /low gravity solids recovery.

 

While except have optional choice for centrifuge, sometimes, if it is for geothermal project, we do not need vaccum degasser. That is also no problem, we have just sent one mud system to Turkey, which is for 1000HP geothermal drilling rig. No centrifuge, no vaccum degasser.

Another customized option is mud tanks design.

Then tanks can be customized layout as the rig site requried, also considering saving the inland freight cost, sea freight cost, and so on. Also if you have partners who is fabricating mud tanks, you can make by yourself, and GN will supply fully technique support. Drawings, and detaisl for your information.

 

Welcome to visit CIPPE 2015 to visit our booth, to check all the equipment you maybe interested in. Also the drilling waste management system will be showed there. Contact us freely if you wanna come, and need any help on this.

 

Hebei GN solids control is the top and first API certified manufacturer in China of solids control equipment and system. GN product has been exported to more than 60 countries, and GN highest standard decanter centrifuge is popular in the international market, especially in the Middle East and the Africa. About 100 decanter centrifuges are exported to the world for oil and gas drilling and diamond drilling. Also, GN has extended its business to drilling waste management with the second generation of GN vertical cutting dryer. And GN has designed and build the complete set of drilling waste management system with the first stage treatment of GN vertical cutting dryer and the second stage treatment of decanter centrifuge.

On the drilling site, cutting discharged from the first stage solids control equipment: shale shaker and the second & third(desander and desilter) will fall into a screw conveyor, which will feed the cuttings to the vertical cutting dryer to process. Cuttings will be dried with a OTC≤6%，so that the cuttings can be discharged directly. The liquids will be pumped into the decanter centrifuge for further process to separate the ultra-fine solids out of the mud, and then the mud will be clean enough to be reused. This year, GN drilling waste management system sell well, many a sets are now working on the site. One for Shell project is now working in Sichuan, Province, China; one is working in Cyprus to dry the oil-based drilling cuttings, also four for Nordous Industry Projects.

 

For environmental reasons, many drilling companies now require drying solution. GN vertical cutting dryer solution is not only suitable for oil-based mud drilling cutting but also for water-based mud drilling cuttings. And now it is accepted by big player gradually.

Lately, GN Solids Controlwelcomed among the America clients in Hebei . This client shows many interests to GN drilling waste management system. GN colleagues have talked about a great deal about this system to reply to any queries out of this client. GN technical engineer provides tech to support team and draw 2D sketches with this client.

Since every client has special calls for their tools, GN always attempts to do their finest.

This technique includes two tanks. The first mud tank is to separate the drilling waste and supply solids towards the second mud tank. The 2nd mud tank can be used for drying out the drilling waste.

For that first mud tank, GN Solids Control suggests our client to make use of the next tools:

1.A bouquet of Mud Recycling System, that is including one shale shaker, one Small

Mud Cleaner, one Centrifugal Pump and something mud tank.

GN Shale Shaker is applying GNZS 703E- HB, this kind can achieve to 7.5 G high vibrating strength, that is adjustable by modifying the vibration motor. GN Small Mud Cleaner is applying GNZJ 752E- 4N, the significant capacity of the cleaner is 200GPM. And also the GN centrifugal pump is applying GNSB 4x3A-10J, that one can be used for feeding the drilling waste to mud cleaner.

2. A bouquet of Vertical Cuttings Dryer, featuring its a bouquet of GN vertical cuttings dryer, a bouquet of GN high configuration decanter centrifuge, two NEMO pumps, one centrifugal pump and mud tank.

GN Decanter Centrifuge and GN Vertical Cuttings Dryer is a bouquet of right diamond necklace for cuttings dryer. Usually, the vertical cuttings dryer can cope with 30 tons to 50 tons cuttings hourly, and also the oil could be controlled with five percent, that is very appropriate for atmosphere protection.

Sometimes, clients from some nations might have very strict demands around the oil percentage within this situation the cuttings have to be worked with extra process for example chemical reaction that is another subject.

GN Solids Control not only offer solids control equipment, but also offer solids control equipment test service after sales. In this pattern, GN Solids Control can support on the customers from overseas or domestic.

 

At the beginning of 2014, one customer from Cyprus who committed herself on oil service and solids control service buy one sets drilling cuttings treatment system to pro-handle the drilling cuttings/drilling waste from offshore rig. They have one plant to storage and treat the drilling waste.

 

The drilling cuttings treatment/dryness system including below items:

One sets VFD Verti-G dryer, this is replacement for CSI/ Swaco dryer.

One sets VFD Decanter Centrifuge, this is replacement for Derrick DE1000/ Swaco 518 centrifuge. High speed centrifuge can separate fine solids from drilling liquid after treated by Verti-G dryer.

One sets slurry pump which installed on the catch tank between Verti-G dryer and decanter centrifuge. This slurry pump is used for feeding centrifuge.

One set trailer mounted skid to hold all the equipment above.

 

The working process can be separated briefly as below steps:

Step 1: the drilling cuttings / drilling waste/ drilling sludge can be feed to Verti-G dryer by screw conveyor.

Step 2: the drilling cuttings / drilling waste/ drilling sludge be treated by Verti-G dryer. The operator can adjust the dryness by changing the rotation speed of the screen basket. The VFD control panel can help on it.

Step 3: the liquid parts will go to catch tank for storage; the solids parts can be collected by cuttings box.

Step 4: if the liquid parts is not flowable to be feed for centrifuge, the operator can add some base oil / water to dilute it. Then, use the slurry pump for feeding centrifuge.

Step 5: the centrifuge separate the fine solids from the waste; liquid part go to next equipment, Solids part collected by cuttings box.

 

GN Solids drilling cuttings treatment system have been exported to Baker Hugher, Nabors Industries, Shell etc. The quality is tested by many jobsite. Click this link you will learn much more:

http://www.gnsolidscontrol.com

 

In a solids control system, desander is the second stage equipment, which removes solids particle size 40-100μm out of drilling fluids. Then the next is desilter removing particle size 16-50μm out of drilling fluids. While, cone(also acknowledged as hydrocyclone) is the functioning part for both desander and desilter. In accordance with the size of cone diameter, cones are classified as desander cones with a diameter over 6’’ and as desilter cones with a diameter less than 6’’. Generally, 8’’ and 10” cones are generally utilized as desanders; 4’’ and 5’’ cones are often used as desilters.

You may be concerned about the cones’ working principle. You will find the answer in the following paragraph.

In normal operation, feed slurry is forced tangentially into the interior of the cone in a high speed, causing whirlpool effects inside the cone. The swirling motion of the slurry drives the larger and denser particles outward against the cone wall towards the lower discharge port, whereas the smaller, lighter particles move towards the center of the cone and go out through the upper discharge port. The separation of solids from drilling fluids is finished.

GN’s desander and desilter cones are made of polyurethane material, and adopt a removable assembly to be installed on a shale shaker.

Related article:

http://mengda0312.over-blog.com/2014/12/gn-made-mud-cleaner-hydrocyclone.html

Dewatering centrifuge generally require high speed centrifuge with High-G force to separate ultra-fine solids from the water based drilling mud liquid part. GN Solids Control can offer different range of centrifuge from low speed to middle speed to high speed centrifuge for difference field application.

GN Low speed / middle speed centrifuge. Like GNLW452 centrifuge, with 1800rpm working speed, can used for barite recovery on solids control mud tanks.

GN high speed centrifuge, like GNLW453 and GNLW553 with big capacity, can reach to 2500rpm for barite recovery or mud weight cutting.

Now GN Solids Control is promoting its super high speed centrifuge GNLW363CG-VFD with typical speed of 3800rpm. With this working speed, the dewatering centrifuges will working very well to meet customer’s requirement.

Flocculent unit is chemical enhancement on drilling fluids before feeding high speed centrifuge. We can offer Three Chamber Automatic Mixing System (PAM); PAM Mechanical operated diaphragm pump; Safety valve (LRRV-P25，PVC); Back pressure valve (LRRV-P25, PVC); Pressure gauge (0-10bar,PP); Buffer Device – LRAC-P1.0, PVC（DN50 Reducing）; 20FT Customized Container & Attachments. We can also offer BV certificate on the customized container for safety.

GN Solids Control have customer from Iran and Singapore who have bought dewatering centrifuge with flocculent unit from us. The customer with professional chemical engineer and centrifuge engineer use the equipment very good. As we are only equipment original manufacturer, we are not familiar on the chemical knowledge. So, we advise the user who buy these kinds of equipment find some professional advisor locally.

The customer from Singapore buy many equipment from us . Except for dewatering centrifuge with flocculent unit, the customer also buy shale shakers, mud cleaners.20ft containers with customized attachment.  The customer from Iran is our old customer who bought over 10 sets centrifuge from us each year. They are locally very strong mud service company.

GN Solids Control is stable solids control & waste management equipment supplier. With high standard quality equipment, perfect solution offer and reasonable price, GN Solids Control is best choice from China.