shaker

Afghanistan Oil Show was held on, may 5-8 in Tehran Armed forces europe this year. GN Solids Control brought the self developed classical model decanter centrifuge rapid GNLW363CG. As important acrylic show, all drilling firms, mud engineering service organizations, oil service companies as well as oil field trading corporations attend the show to learn latest news in this discipline.

GNLW363CG Decanter Centrifuge previously starts to serve the marketplace since 2014. This unit is improvement model of GNLW363AG and GNLW363BG. The secure working performance, longer life and higher treating capability give good reputation due to classical model centrifuge.

– With 14” bowl length and 50’’ bowl period, the length / diameter proportion over 3; the drilling mud would stay into the centrifuge screw auger to get longer time, thus dismissed solids can be much dryer, separation performance can be significantly better.
2 . Designed operation highest possible bowl speed can attain to 3200RPM, 2200RPM suggestions 2700RPM also available. The client are able to use lower speed for higher gravity solids separation; work with higher bowl speed regarding low gravity solids parting.
3. Bowl material will be produced by Duplex stainless steel 2205, this model material is way better than SS316L. The centrifugal casting technology applied for far better dynamic balance performances, that guarantee the centrifuge performing performance in high speed revolving.
3. Same direction with slurry feeding and solids moving inside the bowl, improve the flow rate within the bowl. This design raise the treating capacity of the centrifuge, even when deal with heavy mud.

2016.06.13-gn-centrifuge-at-iran-oil-show-2
Except for GNLW363CG star product centrifuge, we also have yet another Vertical cuttings dryer along with super working performance to get drilling waste management. Due to oil show higher cost, most of us only take the centrifuge right now there. Below chapter to give more info about GN vertical cuttings dryer

1 . GN Solids Control top to bottom cuttings dryer is to officially used on line / off brand drilling waste management, mostly to treat the drilling cuttings discharged from shale shaker, to separate the solids in addition to recycle the valuable oil-based drilling mud for using again
2 . GN vertical cuttings dryer is mainly used for oil-based mud drilling cuttings therapy. The oil on cuttings (OOC) can be reduced to help 3% to 5% following GN vertical cuttings dryer. The discharged dry solids can be transported to energy desorption unit for ultimate treatment. The clean drilling mud can be transfer in order to high speed decanter centrifuge to find the fine solids, so the mud density might be lower down which make it right for reuse
3. In the event that for water based drilling waste management, we highly recommend fixation unit or renforcement unit for final cure.

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Oilfield screen shaker separator normally called oilfield shale shaker or screen separator. It is the first step solids control equipment used in oil field and other drilling activities. It is the necessary solids control equipment for mud systems, no matter for oil and gas drilling, HDD, CBM, TBM, or piling.

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Per the motion type of screen shaker separator, there are linear motion screen shaker separator and balance elliptical motion screen shaker separator.  
Oilfield screen shaker separator is normally linear motion type. And linear motion screen shaker separator is the most popular and long history type. Linear motion is more reliable. It can suits more kinds of jobsite condition.
While Balance elliptical screen shaker separator is very limited with jobsite and mud condition. When there are big load of mud, or the mud fall onto screen shaker deck unequally, the motion will be damaged and the BEM shaker cannot be working well. Mud will be over flow.

Per shaker deck quantity, there are single deck screen shaker separator and double deck screen shaker separator. Double deck screen shaker separator can be used for scalping shaker separator. The top deck use coarse mesh screen for pre-separation, while the bottom deck use normal mesh wire screen per jobsite condition.

Per the difference of applications and G force, screen shaker separator can be divided into solids control screen shaker separator and drilling waste management high G screen shaker separator. Beside the application G force is different, for solids control screen shaker separator and drilling waste high G force screen shaker separator, the feeding type of the 2 screen shaker separator is also different.
Solids control screen shaker separator is normally use top type or back type weir feeder, or box feeder, while drilling waste screen shaker separator is use hopper feeding.
Solids Control screen shaker separator can be fed by slurry pump or fed directly from the rig manifold under gravity. While drilling waste screen shaker separator can be fed by screw conveyer or cuttings transfer pump.  

GN Solids America, it is the branch company of GN Solids Control Company Limited. It is located in Houston Texas. With its own office building and warehouse.

GN Solids Control and GN Solids America took part in 2015 OTC oil show with great success. The head company GN Solids Control takes its latest design drilling waste management equipment (high speed decanter centrifuge, vertical cuttings dryer) for the show. And GN Solids America show the mud cleaner separator machine for the OTC oil show. Mud cleaner is a 3-in-1 machine, with the function of desander, desilter, and a under flow shale shaker.

GN solids control mud cleaner for oil and gas drilling showing on OTC
1) Mud cleaner model: GNZJ594E-2S12N
It is the combination of under flow shale shaker GNZS594E, a 2-cone desander, and 12-cone desilter.
2) Capacity of the mud cleaner: 240m3/h (max.)
The capacity of mud cleaner depends on the desander cone and desilter cone capacity. The smaller one is the treating capacity of the whole treating capacity.
Desander cone and desilter cone is on D100 separation machine. There will be some amount of useful mud discharged together with dirty mud. So the function of underflow shale shaker is to further treat and recovery mud and dry the solids discharge.
Some jobsite may use desander or desilter with not under flow shale shaker to save cost. But the performance is surely not as good as the combined one.
3) Feeding pipe size of the mud cleaner is 6’’ and the output size if 8’’. GNSB8*6 centrifugal pump is mostly used to feeding for the desander and desilter.
4) Shaker screen of the GNZJ594E-2S12N mud cleaner: the under flow shale shaker is a 4-panel shaker with long shaker deck. It can make the solids more dryer. The shaker screen is pretention type, and mounted with wedge for fast screen changing.
5) GN patent design for Synchronous adjusting of the deck angle. When the operator adjust shaker angle at any side, both sides will be up or down with exactly the same angle. It saves time of jobsite people and easy for operation.  

TBM is Tunnel boring machine, it is similar to piling. It is widely used for municipal construction, like subway, tunnel, etc… There are high content coarse rock particles generated during the process. It does not have high standard for mud quantity. No need separate to very small size. It request big capacity for a rough separation, like 120m3/h or 240m3/h mud systm.

Mud plant for TBM Tunnel boring machine

It is compact mud system with double deck shale shaker, and desander hydra cyclone above the shale shaker to used as a combination of mud cleaner. 10’’ Desander cone quantity varies from 1 ~2 for different capacity (120 CBM or 240 CBM). TBM mud system use steel frame screen (e.g. 0.3mm, 0.5mm, etc…) and desander cone. Desilter normally is not used in TBM drilling mud system.

TBM Tunnel boring machine supplier:

1) Akkerman Inc  for Trenchless Tunneling Equipment 

2) Alvenius Industrier AB (Sweden)

3) Associated Polymer Services Ltd Geotechnical and Tunneling Supplies 

CBM (Coal Bed Methane) is more and more widely used. As natural gas as a clean energy type become more and more polular.

CBM (Coal Bed Methane) mud system is similar to HDD (Horizontal Directional Drilling). Compared with TBM and piling, it has a higher request on mud quality.

Mud cleaning system used for CBM drilling:

1) Per different capacity, Shale shaker is single deck or double deck, and utilize shaker screen 2 panels, 3 panels or 4 panels.

2) Desander cleaner

3) Desander cleaner

4) Mixing machine

CBM (Coal Bed Methane) machine supplier:

1) Atlas Copco (America)

2) SCHRAMM (America)

3) Sany Heavy Industry (China)

Desanding plant for TBM and mud cleaning system for CBM us different. They are not changeable. Customer should specify the rig type before order. For any questions on compact mud system, you can contact GN group for solution.

China top solids control manufacturer: GN Solids Control, exported a complete set 1200GPM mud recycling equipments to middle east market for HDD drilling rig.

The system is customized for the customer. To further reduce the total cost of the tank, GN company offered complete equipment, and offer customer tank design drawing free of charge, customer build mud tanks locally. They are happy with the solution and the system used very well now.

Equipment for the 1200GPM mud recycling system:

1) 3 each Shale Shaker GNZS579

2) 1 Mud Cleaner with 3 each 10’’ desander cone and underflow shale shaker model GNZS594 (Desander cones only )

3) Jet mud mixer

4) Agitators

5) Centrifugal pump feeding for the desander cone

6) Mud tanks 1 each. W 3000 mm, H 230omm, L 12000 mm

Customer want tank size is  W 3000 mm, H 2300mm, L 12000 mm with center Partition , the I section for 3 Shale shakers with 2 Agitators,  II section for Mud Cleaner with 2 Agitators and the jet Mud Mixer. Centrifugal Pump Model SB8x6-12J for mud transfer  from Shale Shakers Section to Desander cones.