Desander Desilter

Seventy units GN Centrifuges in Africa

Early 2015, GN exported around 40units centrifuge to Egypt, plus 30 in 2014. Now 70 in Africa.

As we have a tendency to all grasp, China in Africa has mostly been couched in government rhetoric and clouded by stereotypes. On 29 Oct., China disclosed the small print of its fourth batch of aid price some eighty two million U.S. greenbacks to assist African countrie’s fight against the Ebola virus. Obsolutely not solely politicions, neither another batch of aids. a lot of and a lot of business association is going on. joined of the leading solids management & drilling waste management provider in China, currently a lot of than thirty units carafe centrifuges in operation in Africa in 2014.

If you’re interested, pls check the video here from Youtube: https://www.youtube.com/watch?v=DG3ys2kMN1Y

OIL is usually massive resource in Africa, drilling work is one in every of the foremost necessary activity, Then here comes the setting protection, solids management & drilling waste mangement, not just for recoverying the helpful lubricator, this can be one necessary issue to encourage folks to try to to this although, conjointly to safeguard wherever folks live.

This time, our once sales team comes back from western Africa, once did empowerment & coaching for three rig sites. Nearly all of them victimisation the foremost widespread carafe centrifuge GNLW363 series.

One of the rig web site victimisation 2sets GNLW363 centrifuge, one set is fastened speed carafe centrifuge, with 3200rpm high speed once delivery, conjointly 2200rpm/2500rpm/2700rpm as option; the opposite variable speed centrifuge with VFD instrument panel. With the PLC VFD instrument panel, the client will modification the speed simply from zero to 3200rpm ceaselessly.

Another rig web site, is victimisation centrifuge with flocculant unit for dewatering, if we have a tendency to need higher normal, typically it’d not be enough to solely use mechanical separation, polymer, coagulator powder, or regardless of the chemical is, chemical powder is get a lot of and a lot of necessary within the rig web site, and within the want of drilling waste management.

GN Solids management our selves conjointly packing the flocculant unit with a reliable partner. Doing our greatest to provide client with a 1 stop resolution.

Celebration of GN and EMEC Cooperation on Decanter Centrifuge

Celebration for GN & EMEC strategic relationship was held in Hebei GN Solids Control Co., Ltd’s headquarter, signifying a long term cooperation between GN and EMEC starts on the basis of mutual trust and support. EMEC, fully spelled as Egyptian Mud Engineering & Chemical Company, is the largest mud and solids control service provider in Egypt firstly established relationship with GN three years ago. At the beginning of 2015, EMEC chose GN as their long term cooperated supplier of decanter centrifuge and placed a very big order of GN decanter centrifuge. After the celebration, the large batch of decanter centrifuge will be delivered to Africa.

On the celebration, GN general manager Mr. Zhou said, “ Here, I’d like to extend sincere gratitude to Mr. Amir and Egyptian Mud Engineering & Chemical Company who gives this chance to GN solids control with their excellent insight. We are pleased, delighted and honored. We promised to try our best to improve GN product and provide the best after-sales service. We both have faith in that we’ll profit more than large in the future.” in his speed. Also Mr Amir expressed its thanks and delight when delivering the speech.

As it is known that decanter centrifuge plays a very important role in a set of solids control system because it will separated the ultra-fine solids out then the drilling mud can be clean enough to be reused. Normally 2 sets of decanter centrifuge used in the solids control system for oil and gas drilling, a medium speed for high gravity solids separation, and a high speed decanter centrifuge for low gravity solids separation. This time a large amount of GN high speed decanter centrifuge delivered to Africa as the fruit of this cooperation.

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GN Shale Shaker with Mongoose Replacement Screen Stock Available in Houston Warehouse

After the Spring Festival Holiday, GN back to work for a while, the Inventory of the solids control equipment in Houston has already upgraded. The main equipment available right now are the shale shaker, mud cleaner and decanter centrifuge. These units are requested very often by the customer once the rig starting for setting up.

The shale shaker stocked in GN Houston warehouse is a type of linear motion vibration mode. 4 panel screens design makes it large working area and long time for the drilling mud stay on the screen thus the cuttings discharged out would be much dryer. It is worthy to mention that the screen matched this shaker model GNZS594E is interchangeable with the original Mongoose screen. Same dimension while the difference is material used. GN’s screen is steel frame which is price competitive than the original ones. The Vibration motor used are from Italy Oli or American Martin, both of this 2 brands are acceptable by The States markets.

The mud cleaner stocked is the model of 1000GPM on capacity with 2 pcs 10 inch de-sander cone and 12 pcs de-silter cones. The under flow shale shaker is the same model with the stocked ones for easy maintenance and future spare parts requirements from the customer.

On considering the request for the shaker screen, GN solids also made inventory for the shaker screen size of 23×46 inch from API 60 to API 230. Right now the stock quantity of the shale shaker and mud cleaner are separately 10 units and 6 units. These units could be delivered within 3 days after the order is placed.

The decanter centrifuge stocked is the new version C type model GNLW363CG. Comparing with the BG model, CG has several upgrades on the designs including the feed tube installation location, the adding of solids discharge block ring which could effectively avoid the cutting gathering in the collection box.

If you have any requirement on the stocked equipment, please feel free to let us know.

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GN Decanter Centrifuge on High Support Frame

In oil and gas drilling industry, the decanter centrifuge can be utilized for barite recovery, ultra fine solids separation and drilling waste cuttings management. Based on the different application and customers’ specific request, GN provides the centrifuge sometimes within the mud recycling system in which the centrifuge is installed on the mud tank. Some clients want to locate the centrifuge on the frame for simple operation and maintenance.

Once the centrifuge installed on the mud tank, it is usually utilized for barite recovery or ultra fine solids separation. Within the traditional mud recycling system, the drilling mud could be treated in series by shale shaker, desander & desilter, decanter centrifuge. 2-centriuge product is now the most popular design that could apply for the barite recovery and ultra fine solids separation. This 2 centrifuge is situated as middle speed model first and high speed second. This is a broadly acceptable layout for solids control system.

With increasingly more rules are released for restricting the release of drilling waste, the drilling companies pay much more attention on maximum drilling liquids recovery. Thus the drilling waste management is granularly entering the drilling industry. Additionally, it request our high speed centrifuge to recuperate the drilling liquids as maximum as possible. Therefore, some companies only get the job done for the drilling waste cuttings separation.

Sometimes the contractor don’t equip centrifuge within the mud recycling system because of cost consideration or low requirement on mud cleanness. The centrifuge service could be supplied by other drilling mud company. The centrifuge having a high support frame is bought in cause it may be utilized for the last stage solids control and drilling waste management.

GN Solids Control provides the decanter centrifuge support frame according to customers’ requirement. Even the customer would request the decanter centrifuge and frame support drawing, they fabricate the frame themselves, also is a great choice for centrifuge service

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Centrifuge process

Drilling fluid enter into the hollow shaft in the spiral conveyor by the feeding tubes, then flow into bowl. Because of the high speed rotating of the bowl , to drive the entered drilling fluid rotating together, the solid debris in the drilling fluid is thrown the wall of the bowl, the drilling fluid expel from the screw conveyor pushing to the discharge hole of the small port. The choice of centrifuge by the debris size of separation solid phase, the bowl diameter of centrifuge, the highest speed and the separation factors influence, the drilling site commonly used the solid and liquid density difference, as the separation basic of the settlement centrifuge, mainly clear the solid phase substance in the drilling fluid, is the last level of drilling fluid solid control equipment.

Checking steps before operate decanter centrifuge:

The rotating body do not have any object to block or interfere the spinning operation.

The strength of the belt for main and support motor are not loosen and no crack.

Hand turn the body to ensure the rotation is smooth without resistance. If resistance was felt during the rolling by hand, check both main and support motor first.

Check the inlet flow tube is open, and flow divider also need to be open when operation is start.

Check the water, is it in the rotating body?

It needs to check the motor oil level in the gearbox, rotating joints and the usual step list above if decanter centrifuge is not operation for set period of time.

The filtering steps that involve with shale shaker and hydrocyclone on desander and desilter can’t remove the most part of debris. Adding centrifuge can process fluid further by remove much smaller debris to achieve much cleaner drilling fluid for zero-discharge drilling fluid systems.

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The choice of drilling fluid shaker screen

While perform the drilling project on the earth, the rig produce the byproduct of cutting, crushing and grinding of solids that will be broken in loose pieces in different size. The size in industry standard is measure by micron. Solids control equipments in different filter stage will achieve the result by its design yet for muti-stage filter process, the line up of correct order of the machines are the must.

To make sure the drill hole cutting surface to the ground , the drilling fluid need to have enough speed in return. It depends on the well diameter and rig ability to decide the pump output volume to achieve the fluid speed. To achieve that speed, solids control machineries need to perform in specific purification level base on particle size and treating capacity are fact that need to be consider.

The choice of drilling fluid shaker screen

Shale shaker is filter the solids in drilling fluid and it is one of the primary equipment. The shale shaker filter the solids in various size by use the mesh that have different opening and layers to achieve the task. The mesh number of the screen is bigger, the smaller capacity to remove the solid size is smaller. The mesh number of is smaller, the bigger capacity to remove the solid size is larger.

In the drilling process, the mud pump produce large volume of mud that contain large cutting. The screen should use smaller mesh number to filter the cutting. Later in the drilling process while increase the depth and the well diameter is getting small, the pump produce the mud that contain smaller cutting, then it is time to use larger mesh number to filter smaller cutting. Other consideration such as mix ratio of water and solid will affect the result of filtering by the screen.

GN ATEX and CE certified Solids Control System for Oil Drilling to Europe

Solids control system is very important in a drilling site for it not only ensures safe drilling but also saves a lot cost by recycling the drilling mud. GN solids control is the 1 st API certified manufacturer of solids control system and equipment in China, and also certified by CE which is always required by European customers. Last week, GN solids control finished 3 sets of solids control system for an European customer, and now those system are ready for delivery. This is a repeated order from this customer, last time they ordered one set of solids control system for 750 hp drilling rig.

The main equipment included in these three solids control system is listed as below.

3 sets of shaker tanks, each mounted 2 shale shakers, 1 mud cleaner, and 1 vacuum degasser.

1 set of decanter centrifuge tank with 1 medium speed decanter centrifuge and 1 high speed decanter centrifuge.

1 set of active mud tank with agitators and mud guns.

1 set of suction tank with mud agitators and mud guns.

1 set of mixing tank with mixing hoppers and mixing pumps.

These are standard solids control system: shale shaker for 1 st stage treatment; mud cleaner for second stage treatment; medium speed and high speed decanter centrifuges for third stage treatment also known as the final stage treatment.

As mentioned before, the 3 sets of solids control system are exported to Europe, ATEX is required for motors and electric control panels, CE is required for all equipment. GN solids control is one of the few companies holding all these certificates. Besides solids control system, GN solids control also manufactures and supplies mud system for other kinds of drilling such as HDD and uprising geothermal drilling.

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Vertical cuttings dryer with oilfield typical platform

Among the few Chinese manufacturers who are able to produce oilfield vertical cuttings dryer, We keep enhancing the design of our vertical cuttings dryer system based on the client’s feedback, we developed a particular oilfield used platform to repair our vertical cuttings dryer GNCD930C.With this particular platform, we are able to place the flushing pump correctly around the skid, with handrail, pathway and stairs. This platform can function once the vertical cuttings dryer rotary speed achieve 900rpm, whether there’s VFD control panel or otherwise. With this design, the dry cuttings can drop lower towards the cuttings collection box easily, and simple for maintenance.

Aside from the design, we have lots of customized design as following:

1 decanter centrifuge, liquids collection box, feeding pump, vertical cuttings dryer in a single skid, work with screw conveyor to transfer the dry solids in the discharge trough of vertical cuttings dryer with other place.

2 vertical cuttings dryer and hi-G drying shaker on a single skid with mud tank

3 vertical cuttings dryer on the separate platform

GNCD930C vertical cuttings dryer is the third generation VCD created by GN solids control, like a company possessed advanced production machinery and finest design capacity, GN solids control always lead probably the most advanced technology among China producers, the brand new design has solved the issues perfectly, including separated screen basket, eliminating of screen basket, prevent of block the screen basket, flies put on protection, solids discharge, cuttings moving, lubrication, etc.

GN offers the decanter centrifuge fit for the vertical cuttings dryer, model no. GNLW363VFD and GNLW363G decanter centriuge. We are able to design to use them one skid for simple transportation in oilfield jobsite, even the platform could be separated.

Please contact GN sales for the drilling cuttings treatment project, we’ll study your jobsite and supply a customized proposal with this standard design, if you’re near to the condition, thanks for visiting to check our vertical cuttings dryer in GN Houston office-GN solids America LLC.

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GN Decanter Centrifuges Utilized in Nigeria

GN Solids Control has been focusing on solids control and drilling waste management fields for a long time. Each year, GN Solids Control produces about 150 decanter centrifuges and 400 shale shakers along with the other solids control tools. A majority of these equipment are delivered abroad because of the big international market.

Lately, GN has manufactured two decanter centrifuges for clients in Nigeria. Both of these decanter centrifuges are comprised one whole system for drilling liquids separation.

Naturally as is well-known, when two decanter centrifuges are utilizing together, the first is generally dealing with bigger capacity drilling mud, and the second can be used for separating finer solids. Even though the decanter centrifuge is principally accustomed to separate solids with diameter bigger than five microns, two decanter centrifuges have different separation function when cooperating.

Mentioning this system, GN suggested making use of two sets of GNLW 363 decanter centrifuge. The bowl diameter of the decanter centrifuge is 14 inch and the size of this decanter centrifuge is 50 inch. The treating capacity can achieve to 200 GPM. However for rotating speed of the decanter centrifuges, they won’t be the same. In order to save cash for clients, the first decanter centrifuge could be fixed speed at 3200 r/m. And the second could be rotating from 0 to 3200 r/m.

Once the drilling liquids with mud changes, we are able to adjust the rotating speed from the second centrifuges to fulfill the treating requirements. However, it might be easier to choose two sets adjustable speed centrifuges. When controlled by PLC, all operation work will be much simpler for workers.

Here both of these decanter centrifuges are generally fed by screw pump. GN use famous label screw pumps that are extremely effective feeding pumps, if this pumps is working, it can avoid agitating the drilling mud.

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GN Auto-Flocculant 6000 Flocculation Unit Introduction

As many client need Clean Water at present, then chemicals finally up to the show. Having a reliable partner, now GN has also become providing the flocculant unit and coagulant unit, with the decanter centrifuge, to provide client a satisfied solution.

The Auto-Flocculant 6000 activity unit could be located in a really 20ft normal instrumentation and serve as a typical compact system for dealing with and using compound solutions.it also could be put in 40ft container installing a GNLW series centrifuge. Due to the integrated system, the preparation and dosing method might happen robotically. Connect ex gratia feature provides the risk of relevant a solids dependent dosing mechanism. Supported the data acquired from measure each volume rate and suspension density, the compound response is injected in to the method in connect quantity proportionate towards the individual solid matter. This type of system can absolutely exclude undesirable over- and/or underdosing.

The Auto-Flocculant 6000 activity unit is provided a liquid compound unit to make certain the automated and continuous preparation of the homogeneously mixed focused compound answer with precise concentration parameters in a two-chamber way (product quantity: 3000 l/h) a powder/liquid compound unit to make certain the automated and continuous preparation of the homogeneously mixed focused compound answer with precise concentration parameters in a really three-chamber method (product quantity: 6000 l/h) a programmable logic controller with bit screen panel for automatic operation flow meters and pressure sensors 2 dosing pumps for moving the premixed flocculant towards the injection purpose.

Two chambers or three chambers, inside container, or outdoors sitting on a skid, could be personalized as needed.

Even the programmer of PLC manipulating the system, have two options, the first is by timer, these parts by water flow and drainage. After involve in increasingly more projects, we are more professional on all of this. Keep tune.

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