Dec 20

GN Solids Control is a famous brand who started from solids control equipment manufacturing, and now also professional in separation solution provider in nearly all fields including the oil gas drilling projects, HDD projects, TBM works, piling, water well drilling, drilling cuttings treatment, drilling fluids treatment and other industrial separation works.

But still, among all the applications GN Solids Control’s products are used for, the traditional solids control system and equipment still occupies a large ratio among all GN’s products of each year, especially for the high standard clients, GN Solids Control is still their favorite and reliable supplier. For example, the Asian and Parcific market, like in Australia, New Zealand and India, where their standards are even higher than the USA and Europe.
In Australia, there are some special and difficult to reach standards, including the electric cable connections and layout, the tank surface treatment, the material choosing and even stair positioning. But GN Solids Control has rich experiences in working with Australia and New Zealand and also is well known by those clients. That’s why, during the past years, GN Solids Control has sold to Australia more than 30 sets of mud systems, not including the single equipment like decanter centrifuges and vertical cuttings dryers.

India is also a special market, India has talent management team and also brilliant engineers, they set up a high standard for their equipment, especially in oil and gas industries. For example, the shale shaker material, they always request the stainless steel as the material of the shaker frame. Although there are local solids control manufacturers in local India, still, clients are coming to GN for the suitable models and solutions. Even in Middle East, the management from big Middle East countries who are Indians prefer to choose GN Solids Control as manufacturer.


written by shale shaker \\ tags: , , , , ,

Jul 12

Does a HDD mud recycling system need a decanter centrifuge? How to use the decanter centrifuge for HDD?

In most cases, there is no need to use a decanter centrifuge in a HDD mud recycling system. One thing is because the drilling mud for HDD project is not as complicated as the mud for the oil and gas solids control, and even in some oil and gas solids control systems, there is no centrifuge. The second is because that the cost for a decanter centrifuge is high, the centrifuge itself is more expensive than other equipment, and the centrifuge need professional staff to operate it and need more careful maintenance.

Centrifuge for HDD

GN Centrifuge used for HDD and CBM

GN Mud Recycling Systems for HDD, CBM and other drillings.

But according to the newly established laws and registrations in a lot of countries, the treating result is of higher standard than before, and now it is quite necessary to employ a decanter centrifuge for HDD mud recycling system. Like in China, the leading HDD contractor CPP added into their new mud recycling system a decanter centrifuge.
GNLW452C is a quite suitable model as a HDD decanter centrifuge, it is used after the desilter cones and the middle speed centrifuge is to separate out the particles from 5 to 7 microns. The big bowl design enables GNLW452 to have a large capacity.

If we have an existing HDD mud recycling system, how can we add a GNLW452 into it?

GN has solutions and the design was well tested at jobsite. The GNLW452 could be mounted on a skid and a screw pump and the control panel ( as a VFD control panel) is mounted on skid, below the centrifuge. The screw pump is used to feed the centrifuge from desilter cone. Solids discharge are collected and liquid flows back to desilter tank. This circle also helps to reduce the mud weight.

For more information, welcome to contact GN.


written by shale shaker \\ tags: , , , , ,

Nov 11
GN bIg bowl centrifuge


Ever since the establishment of GN Solids Control seven years ago, Australia has been the market of GN Solids Control and most of their purchases have been mostly the solids control systems and mud recycling systems for the HDD or other drillings.

GN Recent News FYI: 

But now as the demand for environment protection all over the world is becoming more and more important, more and more drilling companies have paid an eye to the waste management solutions for further treating the drilling cuttings and the drilling liquid, in order to give the least damage to environment meanwhile reduce the drilling cost mostly, by deleting as much solids and well discharging them, and recycling as much as drilling liquid for future use.

Not long ago, an Australian company purchased 2 sets of GN Big bowl centrifuges, GNLW553-VFD, and now the centrifuges are well tested and ready for delivery.

What are the main specification of GNLW553-VFD Decanter Centrifuge?

1. bowl diameter of GNLW553-VFD decanter centrifuge is 22 inch, big bowl. By having this bowl diameter the max capacity designed for this centrifuge is 90 cbm/hour, equal to 400GPM.
2. a long ratio of length and diameter. This value is 3, so the length of the bowl is 71 inch. 3 is a perfect and practical length-diameter ratio, it gives an idea drying level of the solids discharge.
3. high speed up to 3000 RPM designed speed and typical speed up to 2500 RPM.
4. VFD control panal, GN uses positive pressurized control panel which could be used for high temperature condition and much safer than flame proof.
Besides above, the material and parts like bearings are of top brands and best quality, in order to ensure a reliable performance and a long service life.

In field of decanter centrifuge for oil and gas drilling, GN is always the leading brand.


written by shale shaker \\ tags: , , , , , ,

Oct 20

Although the major share of GN products are used for oil and gas industry, GN Solids Control also occupies the first place in market share in HDD, CBM and TBM. And among all GN HDD mud recycling systems, the 500 GPM capacity is the most popular among the users.

Picture below is one set of GNMS 500GL HDD System for a jobsite inside China, this is the 3rd project this system is used to serve and GN Solids Control sent engineer to jobsite help to re-set up of the system.

GN HDD System Jobsite

GN HDD System Jobsite

GNMS series mud recycling system is high standard configuration of GN mud recycling systems, they are perfect solution for HDD projects because:

  1. 1. GNZS703E-DZ shale shaker is a mature design of GN Solids Control, it use 3 pcs of shaker screens and the screen area is 2.63 cbm. Same as all the GN Shale Shakers, GNZS703E-DZ shale shaker uses the patented technology for the deck sealing in order to prevent leaking of liquid. Shaker deck frame is Stainless steel to have stronger structure for a longer service life. Unless its peer model GNZS703E-HB which is designed for oil and gas solids control system, this model of shale shaker is suitable for get fed via a submersible slurry pump from a mud pit. It is designed especially for the HDD projects.
  2. GNZS-703E 1S8N mud cleaner is a combination of the 2nd and 3rd separation steps with desander cone and desilter cones, and the shaker below is used as a under shaker for both desander and desilter cones. GN choose polyurethane cyclones as the desander and desilter cones, more wear proof and longer service life than the metal material ones.
  3. As high configuration of GN mud recycling systems, GNMS 500 GL has mixing hopper and mixing pumps for adding new chemicals into the well cleaned drilling mud after recycled. And this 500 GPM system has a larger storage capacity comparing with the standard GNMS 500G system.

written by shale shaker \\ tags: , , , , , , ,

Jun 16

HDD is short for Horizontal Directional Drilling, in city constructions, like the laying of pipeline, the water pipes, subway projects and etc, any underground work, there is HDD project. The benefit of this kind of project is, during the drilling, there is no harm to the existing buildings or anything, no need to move any residents or buildings.

Some HDD works are connected with Oil and Gas, because any oil and gas to be explored need to be transported to the conserving place or to the oil companies to be produced into consumable petrol or anything else. Some pipelines are very long, even cross the borders between countries. Some are under sea pipeline. During drilling of such long or wide pipe lines, not only a  professional drilling rig is requested, but also a good performance HDD mud recycling unit

see GN products

in Australia

to treat the mud.

Because, if the mud after drilling is disposed directly, the mud containing so many cuttings will pollute the soil or water, depending on where you want to dispose it. So it must be treated before discharge to outside. Secondly, it helps to save cost for the drilling procedure. Although most cases, the drilling mud is water based mud, less expensive than the oil and gas drilling, it still costly. After deleting the cuttings from the mud and adding necessary chemicals into it, the drilling mud become possible to be reused.

GN Solids Control is world famous HDD mud recycling unit manufacturer, and has been working in this industry for nearly 10 years. Focusing makes professional, it is very expertise in designing and making it. Now not only for HDD systems, but also for Piling, CBM and TBM, GN Solids Control has standard design to save time for customer and also greatly reduced the cost by large lot of production.

From GN Solids Control, customer could always find good solutions with least money paid.

May you need more information, welcome to visit our website.



written by shale shaker \\ tags: , , , , ,

Apr 25

For oil and gas drilling work in many jobsites, especially for deep oil and gas wells, there are many different material and chemicals or other additions used during work. Some cheap ones could be discharged or re-treated if they are harm for environment. While some expensive materials should be recovered for future re-use. Barite is one of them. So the barite recovery centrifuge is an important equipment.

GNLW452 Decanter centrifuge is an ideal choice for this application, in all the solids control systems GN made, most of them use this model GNLW452 for the barite recovery and it was proved efficient.

Main Specifications of GNLW452 Decanter Centrifuge:

Bowl diameter: 18 inch or 450mm

Bowl length: 43 inch or 1105mm

Effective capacity: 176 GPM

Max capacity: 250GPM

Max bowl speed: 1800RPM.

G Force: 815

Gear box torch: 57:1


GNLW452 Decanter Centriufge, big bowl large capacity

GNLW452 Decanter Centrifuge is designed to be a middle speed centrifuge, in order to separate the low gravity material like the barite recovery, in some jobsites, per customer feedback, GNLW452 is even having better performance than the US made and European brands.

What features does GNLW452 have?

  1. For this model, GN has improved it to the 3rd generation, with a lot of improvements, with better solids discharge and effectively avoids the blocking of material.
  2. Instead of spray welding on the impeller, GN use special ceramic tiles to ensure a easier future maintenance without re-adjusting the dynamic balancing and enables a longer service life.
  3. World famous brand bearings to get a stable performance and a longer service life.
  4. Patent solution for bearing protection during transportation which greatly helps to prevent damage to bearings.
  5. Big bowl, 18 inch bowl diameter to have a large capacity.

Other options for the GNLW452C decanter centrifuge.

The standard GNLW452C decanter centrifuge is a fixed speeded one, but for the same model, we also have VFD available. In some high standard HDD mud recycling units, end users prefer this centrifuge in VFD control panel after the hydrocyclones for further treatment.

Besides this model, GN Solids Control also have other sizes decanter centrifuges for you to choose, at least one will be suitable for your jobsite.


written by shale shaker \\ tags: , , , , , ,