作者： Mud Centrifuge

Centrifuges and Its Multi-functional Applications

As the leading manufacturer of solids control and drilling waste management systems and equipments, GN Solids Control has a complete series of decanter centrifuges which are suitable for oil and gas industry. Those centrifuges cover a wide range of optional bowl diameters including 9 inch diameter bowl, 14 inch diameter bowl, 18 inch diameter bowl and 22 inch diameter bowl.

GN Centrifuges are widely used for industries of following:

  1. oil and gas solids control,
  2. barite recovery,
  3. drilling cuttings waste management
  4. drilling fluid waste management

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Among GNLW series decanter centrifuges, you can find the suitable model for both the weighted mud and unweighted mud, and GN has high speed decanter centrifuge and middle speed decanter centrifuge respectively for 2-5 microns and 5-7 microns solids particles separation work. And GNLW series decanter centrifuges could use VFD control panel, in this case, for the same decanter centrifuge, end user could use it at any bowl rotating speed from 0 RPM to the maximum RPM of the centrifuge designed RPM. Like GNLW363CG-VFD, the max speed is 3900RPM and it could be used as both solids control decanter centrifuge and drilling waste management decanter centrifuge.

Besides using the decanter centrifuge for the physical separation, GN Solids Control’s new products, which employed in the chemical and thermal solutions also use Decanter Centrifuges as below:

  1. Dewatering unit and dewatering centrifuge. Dewatering unit is to use some chemicals to flocculate the extra fine particles into larger ones, and the next move is to separate it out with decanter centrifuge or filter press. GN Decanter centrifuge is used for dewatering centrifuge and the efficiency could reach 95%.
  2. Thermal Desorption Unit, it is used to separate the liquid phase from the solids, and then use thermal way to burn the oil from the solid and separate the oil and water by an oil water separator, in this case, decanter centrifuge is the first step for separation.

If you have specific request, or need more information for reference, welcome to contact GN directly.

GNGH Solidification Unit, Final Treatment for Drilling Cuttings

The solidification unit is a newly adopted solutions for final treatment of drilling cuttings from both the OBM and WBM, especially the water based mud. It is original designed for the drilling cuttings discharged from the traditional drilling waste management systems, the high G dryer and decanter centrifuge, or ,the VG dryer and decanter centrifuge in case of oil based mud.

Normally the drilling cuttings from the traditional drilling cuttings waste management systems are not dry enough to be discharged directly. They need to be transported to other places for further treatment. In order to solve this problem, GN has designed and put into use the solidification unit, it could be connected along side the rig, and treat the drilling cuttings directly until they are inactive and could be buried on rig site as re-fill soil per some countries and regions’ rules.

Working procedure of GNGH Solidification Unit:

By using 3 hoppers, 1 big one and 2 smaller ones, the drilling cuttings to be treated and the other one or two additional components could enter the unit and mixed together. Normally the 2 components are respectively absorber and cement. They made the active things in the drilling cuttings to be inactive and make it harmless for the environment.

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Features of GNGH Solidification Unit:

GNGH-15A solidification unit is designed to have 3 VFD’s and it is an automatic operating unit. The 2 hoppers respectively for feeding the absorbers and cement could be used at same time or separately, depending on the operators’ request and the cuttings’ condition. By using the 3 VFD’s, the operator could also adjust the feeding ratio of the 3 to get an ideal result.

Now this solidification unit is used for more than one applications like the mud tank cleaning work and other projects. If you need any more information or have any interest, welcome to visit our website or contact us directly.

GN High Configuration Mud Plant

As the most well-known Chinese solids control brand, GN Solids Control has been working in oil and gas drilling industry for many years. GN clients are from more than 60 regions and countries including the extra hot places like the Middle East and Africa and extra cold places like Russia and Canada. GN’s main products including:

  1. Solids control equipment and mud cleaning systems for oil and gas drilling including the mud plant.
  2. Waste management equipment and systems for oil and gas drilling, including the drilling cuttings waste management system and drilling waste management systems
  3. Mud recycling systems for HDD, TBM, CBM and water well drilling
  4. Shaker screens

Those above mentioned equipment are mainly used for physical separation based on the solids particle size in the liquid. And the equipment are used for separate out the particles. And the barrier between them is not so clear.

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Like the high configuration mud plant, it plays some function for the solids control system. In order to reduce cost, some drilling companies don’t use decanter centrifuge in their solids control system, so when the old mud is transported and collected in a mud plant, the mud plant has to prepare a decanter centrifuge for further treating the mud. GN Solids Control produces the complete mud plant components including mud tanks, mud agitators, mud guns and mud mixing system And GNLW series decanter centrifuges are also GN’s core products. Even in some high configuration mud plants, clients use GN dewatering unit for separate the extra fine particles from the drilling mud.

 

GN mud plants are welcomed with clients. Some Chinese giant drilling companies are purchasing mud plants from GN, and GN mud plant carrying GN’s Logo are exported to many other countries in Europe, Africa, Australia and other places around the globe.

The way to select Right Model on Mud Agitator and Use it properly

Mud Agitator is one of the solids control equipments that are mainly used for you to mixing the drilling body fluids in the mud tanks to hold the solids inside the drilling fluids suspending other than sedimentation down to the tank bottom level.
GN’s sales team ever gotten many inquiries on the mud agitators; unfortunately, most of the buyers have no idea on how to choose the right product suchs mud agitator, shale shker, mud cleaner, decanter centrifuge, etc. for their project and even seldom know how to use the equipment adequately to ensure a longer life time. GN’s sales are good at comprehension clients’ specific request simply by asking few simple concerns. With the answer from the buyers, GN always could provide the best proposal for clientele. Now let’s see precisely what these questions are and exactly information GN need to give you a proposal.
a. What is the on the inside dimension of the mud tank or pit. From this concern, GN will know the inside duration, width and depth in the mud tank, and then GN will know how long the agitator shaft should be suggested to get clients and how big impeller should be used. For the deeply mud tank or ditch, the stabilizer will be presented to hold the agitator length for stable performance.

mud agitator
c. What is the shape of the mud tank, cylinder or square? Then GN will know tips on how to design the mud agitator.
chemical. What is the electric specification, generally GN would like to know the work site electric voltage and occurrence. Different countries may have various frequency, the 50 Hertz motor cannot be used beneath 60 Hz, and protection is ever the first believe we should keep in mind.
d. Will be S. G. of the chemical? For very thick water, GN will propose greater horse power motor to drive the particular agitator.
For some clients who have get the mud agitators through GN and make the mud tank by themselves, GN often recommends them to make the mud tank with same way of measuring, thus they can get the agitator all same model, which will be much better for clients’ future maintenance. GN advise the RPM setting on the mud agitator between 40-96, too high will disturb the actual solids suspending, while lacking will lead to solids sedimentation.

GN TDU for drilling waste material management

We have one consumer from Africa; require products & services for Winter Desorption Unit (TUD). Your customer gives requirements as down below:
1) Leak proof skips and waste oil aquariums (i. e., offshore mobile tanks) for the collection of
NAF drilled cuttings and other NAF rig wastes at THE CLEINT’s drilling rigs.
2) Pier access for PSVs supplied by THE CLEINT.
3) Dockside services (i. e., employees, cranes, and forklifts) intended for loading / offloading skips/waste oil tanks from the PSVs and loading the skips and / or waste oil fish tanks on trucks.
4) Passenger trucks for hauling the skips and / or waste oil storage containers to and from the treatment center and within the treatment facility and with hauling treated residue in the treatment facility to the landfill.
5) Treatment facility for the thermal digesting of NAF drilled cuttings and other NAF rig toxins, including any containers essential for transporting the treated silt to the landfill. Treatment facility should certainly have sufficient space to support filled skips and shop empty skips until indexed by THE CLEINT. Treatment facility should certainly have capability to recover, retail store and transport base essential oil from treated cuttings for the dock
6) Hazardous waste materials landfill for treated deposit disposal.

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As we are genuine solids control and drilling waste management equipment producer, we cannot offer the services. But we recommend specialist drilling waste management vendor to them. In this case, we can cohesiveness with the Service Company, and give very good equipment and service to the bottom user.
The main equipment stated in the project is heat desorption unit (TUD), GN can offer mobile thermal desorption unit (TUD), including Serving Hopper, burner, thermal desorption unit, cyclone dust parting, vapor recovery unit, essential oil water separator, water tank, cooling tower, water screen duster, condenser, process control etc .
Except for TDU, GN Solids Control also create all line of solids control equipment, eg. Shale shaker, decanter centrifuge, mud cleaner, agitator, centrifugal pump, 1000gpm mud cleaning system, 500gpm mud system etc .