May 27

Early in May, Trenchless Asia exhibition was held in KLCC, the center of Kuala Lumpur, the capital of Malaysia. It is not a big exhibition, which occupied only one hall of the exhibition center, but it is always a professional one, in which all big players in the trenchless industry was involved, like Vermeer, American Auger, TT-Asia, Ditch Witch, Bauer, GN Solid Control, Tangxing, Goodeng, and etc.

powerful pump for slurry transferring

GNSP Slurry Pump

Cause this exhibition is a bit overlapping in timing with OTC in Houston, in which GN has two big booths, GN only arranged a small booth in Trenchless Asia, and brought one single exhibits, a newly designed portable vacuum pump.
In Trenchless industry, this pump could be used to transfer the mud from inside of the pipe-jacking line, or to be used to transfer the slurry out from the pit. In this exhibition, the experts and professional operators also developed new applications for the vacuum pump, like to transfer the clay particles during construction, or animal waste or toilet waste…
Besides those above mentioned applications, the GNSP series vacuum pumps are mainly designed to transfer the drilling cuttings and oily sludge for the refinery industry or the tank bottom cleaning works. It could handle the material with solids content up to 80%, with particle size up to 50mm, from 50 meter away to 500 meter’s distance.
In this exhibition, customers discussed with GN sales team about the future inquiries and opportunities. For most of end users, GN Solids Control is a well known brand with a good reputation. In fact, lots of big brands of pipe jacking or HDD rigs are packing GN’s mud system because of GN’s reliable quality and responsible service.
Till now, GN Solids Control has sold equipment to more than 70 countries of world, and GN brand is accepted and appraised by many national owned drilling companies.
Welcome to contact GN for consultancy or inquiries.

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

Mar 23

Drilling waste management is one of the core system GN Solids Control produces, it includes the drilling cuttings separation and also the drilling fluids separation. Dewatering unit, which is also called chemical dosing unit is one of the important components of the drilling fluid treatment systems.

GN dewatering jobiste

GN dewatering jobiste

In some countries and regions, it is a must that a drilling rig must be accompanied with a dewatering unit and a dewatering centrifuge, for one thing, more drilling mud could be recycled, which means to reduce the cost and save money. For another thing, it is reducing the harmful components to be discharged to the soil or environment, it helps to protect the surroundings.

GN Solids Control has been providing the dewatering unit for many years, and the dewatering unit now are more and more widely used for different applications, such as:

1. Oil and gas drilling fluids separation. After being used for a certain time, there are more and more extra fine particles in the drilling fluids, even too fine to be separated out by a centrifuge. By adding some chemicals into the fluid, the extra fine particles flocculate into bigger ones to be separated out by centrifuge.

2. In TBM, Piling and other projects, when the slurry is of higher viscosity or need to be added with some chemicals, the dewatering unit is playing an important role, just as shown in the picture, the treatment was successful.

3. In oily sludge separation projects, the added chemicals helps to separate the oil from the cuttings, which greatly increase the efficiency of centrifuge and oil water separator.

GNLW Series decanter centrifuge, especially GNLW363G-VFD, GNLW553-VFD centrifuges are always ideal choice for working together with dewatering unit. Besides those models, GN also has centrifuges with bigger length-diameter ratio for clearer separation.

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

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.

GN EQUIPMENT WORKING VIDEOS
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.

GN RECENT PROJECT NEWS
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.

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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.

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

Nov 11
GN bIg bowl centrifuge

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.

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