Blue Flower

The market is silent, as the oil price goes down, the market is quiet. But let us be prepared. We do not want to be focused on, but this is for Africa. When we talk about the situation right now on the market, they said.
As our press release before, in 2014, there is a few dozens decanter centrifuges are sent to Africa, and just in the early of this year, another 40sets, to Africa.

40 more centrifuges to Africa
The main difference of GN decanter centrifuge, comparing other supplier in China is:
1) Bowl Material: Duplex Stainless Steel Grade 2205 made by centrifugal casting Better balance
2) Screw and Other bowl assembly material: SS316L Stainless Steel;
3) Screw protection: Replaceable Tungsten Carbide Tiles and special Ceramic for mud distribution port on conveyor.
4) Heavy Duty design with Big torch Gear Box
5) Genuine SKF bearing
6) Pressurized Stainless Steel Electrical VFD (SIEMENS or ABB Brand) Control Box by PLC smart control and touch screen

the advantaged GN decanter centrifuge
There are two sets decanter centrifuge on the offshore rig. One centrifuge is from Baker Hughes Drilling Fluids Environmental Services, the other one is from our buyer, which is local professional solids control & drilling cuttings treatment service provider. Sometimes, the offshore rig uses this two sets centrifuge alternatively ;one is in use and the other one as backup. Sometimes, they use the two centrifuge together to work more fast.
Also this could be the reason that GN decanter centrifuge operating in Transocean offshore drilling project. 
In this 40 sets centrifuges to Africa, mostly are GNLW363G-VFD, this is the most popular one from GN, widely used all around the world, and many different applications. Another one is GNLW452CD, this centrifuge is also popular for barite recovery, and a modular equipment for normal solids control system.

It is quite a long time quiet time for mining business. But now people are actively preparing for the new booming. As we all know, for mining, Canada & Australia is two biggest country which is most experienced. 

GNLW223 decanter centrifuge is one amongst the foremost well-liked tiny centrifuges for mining drills. The mining drilling company in North American country first bought one carafe centrifuge for testing, after that, they bought another three centrifuges, soon as they're terribly glad with the standard and performance, they bought another ten carafe centrifuge.

GNLW223 may be a high speed tiny volume carafe centrifuge, the bowl size is 9inch around 220mm, the capability is around 26GPM, the speed is 3800RPM. thus we have a tendency to additionally decision it “Mini Centrifuge” For the mining drilling, the baby centrifuge is to separate the fine solids within the drilling fluids to permit the drillers to employ the drilling fluids, in an exceedingly result, drillers will economize on new drilling fluids and additionally it saves value for disposal the drilling fluids.

GN mini centrifuge is on the market in VFD drive, Hydraulic drive, or mechanical fix speed drive. Depends on totally different applications and budget, shopper can opt for totally different choices.

Hope after doing good on depressed time, hope we will do much more better on booming time. Especially with the support of these companies choose us to test or use our product now, thanks for all the feedback which help us to improve step by step.

For some difficult TBM project, we may get somewhere we do not like, too much solids, too high mud density, then the dewatering unit is not working so efficienly. Though filter press is a good option, here we can have some improvent. To make the dewatering unit working as we wanted.
TBM mud system
 If you add a smaller decanter centrifuge (Let's say 40m3/h)  to treat the drilling mud without polymer before feeding to the exisiting centrifuge with poleyer, it can reduce the  mud  density from 1.7 SG  to around 1.2 SG 
  Then you treat the 1.2 SG mud with your exisiting centrifuge to get clean water which is around 1.0 SG. From our engineers experience, you can get the centrifuge capacity from 8 m3/h to around 20 m3/h for getting clean water in this case, maybe more by increasing the speed and differential speed. And you can save a lot on the volume of the polymer.
 
  Normally, for geting clean water, our client will treat the mud by mechanical method first to get the desity down, that means to get most of the solids out from the mud, for the ultra fine solids, they use polymer to do dewatering.
   
 Since the mud is still heavy with 1.7 SG  after the desander treatment. So we suggest to put a centrifuge to reduce the density of the mud to around 1.2 SG before feeding to the decanter centrifuge with polymer.
  That means, first phase is mechnical only, second phase is chemically enhanced centrifuge treatment. This way will increase the total capacity of the system to at least double capcity of existing unit.
  And also you can save the polymer and chemicals.  
  
  Moreover, the mechanical treatment centrifuge, you only need to use a small centrifuge with cheap price, not the big bowl, to match the chemical enhanced phase separation.
 
  Another way is to increase the mixing time of the chemical with the mud by extend the outside feeding tube of the centrifuge before feeding to the centrifuge.
   And also increase the bowl speed to around 1800- 2000RPM and increase the differential speed to around 30 RPM, anyway, it should be within the limit of the centrifuge not to get the centrifuge overload.

GN Solids management finished the assembly for three Sets one thousand power unit oil rig solids system for a drilling company in Europe, the shopper purchased one set of 750 power unit oil rig solids system from GN. This three sets mud system is that the repeat order for this shopper.

Three sedimentary rock Shaker Tank with VI sedimentary rock Shakers, three Mud Cleaner, three vacuum degasser.

One Centrifuge Tank with one middle speed carafe centrifuge and one high speed carafe centrifuge.

One active mud tank with agitators and dust guns.

One suction mud tank with mud agitators and dust guns.

One intermixture Tank with intermixture hoppers and intermixture pump.

Solids management instrumentation

So totally, actually, the solids management systems embrace one complete set one thousand power unit oil rig mud system and 2 additional shaker tank with three part solids management instrumentation.

As these solids management systems are exported to Europe market, all motors and electrical management panels are needed to be ATEX certified and every one machines have to be compelled to be metallic element certified. GN Solids management is one in every of the few firms in China UN agency hold those certificates.

Since GN Solids management specialize in the prime quality product, currently GN Solids management market share are growing quick in Europe and America market.GN Solids America conjointly provide the solids management rental services in North America market.

Related Arciels:
 
 
 
 
  • GN has been ready for the slower grow of oil in 2015
 

My collegue just shared another great news, after sent 10 sets of decanter centrifuge to Africa, plus another big order with more than 40 sets decanter centrifuges, now in Africa we have far more than 100 decanter centrifuges. 
You must wanna know what is happening. Top quality product, best service, and public praise.
Except more than 30 years experance engineer teem, we also hired another team lead by engineer who deal with Alfa Laval decanter centrifuge for moren than 20 years, went to many sites, different applications. We get more updated features from GNLW363B, to GNLW363C, after collecting all the feedbacks from different sites. A more robust products finally come to the world, while we still keep improving at the same time.

GN Decanter Centrifuge
Normally when a client trying to find a proper decanter centrifuge, they may consider:
1. Material
2. Screw protection
3. Failure protection
Freely to let us know if you are interested in details of GN Decanter Centrifuge.

The fixed speed centrifuge & variable speed centrifuge is good combination for barite recovery and mud weight cutting. Fixed speed centrifuge is mainly working for mud weight cutting; the variable speed centrifuge is mainly working for barite recovery, most working under 2200rpm to 2700rpm. When the job only need one function like mud weight cutting, the two centrifuge can working together at similar speed. During the actual job process, the user need to continuously test the feeding mud, discharge mud and continuously adjust the bowl speed of centrifuge to get proper treating results.
In the recent orders, client normally purchase different centrifgues with fixed speed and VFD. For more flexible applicating on site.