solids control equipment


It is mostly used design by
current that can fit several of shale shakers that
coordinate with the design concept
.  It is made with multiple layers of stainless
steel wire clothes together to a steel support plank.  The characteristic of this type of shale
shaker screen are list below:  

It contains different meshes on wire
cloth in the screen.  The sizes of the
holes that support the plank contain different mesh as well.  The support plank size also is different as
well.  Combine it all will get area that
is effective on condition to bearing enough liquid flow force.

The thicker wires cloth contain less
mesh at the lower bottom of the screen together with support plank so it can
added strength of the whole screen to extend usage life.

The wire cloth is divided into many
small surface grid of steel support plank which can hold the excessive
expansion to make it last as long as possible.

shaker screen

 With demand of larger and larger treating capacity
of the drilling fluid but without building larger shale shaker, the corrugate
design screen was appear in 1990s to increase the treating surface and to fit
current use shale shaker.

Corrugate design screen has large effective area, and drilling fluid
is handled in high-efficiency by using it.

This kind of sieving screen has design characteristics as follows:

 Every wire cloth in the
sieving screen has different meshes, and accurate collocation can make the
screen have better liquid treated effect.

Stainless steel wire cloth is made
it like corrugate, and closely holds metal support plank together. The
effective area can added up to 125% of the flat screen with the same specification
and the size, so as to improve the quality and treating amount of drilling
fluid and increase the production.

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In recent days,
GN will deliver to Australia a 500 GPM mud recycling system for HDD.
It is one of GN’s best seller products as the mud recycling system. And 500 GPM
is the most popular configuration among all the available configurations.

As is known to
all, Australian market for the equipments and machines are different from other
markets, because Australia has a even higher standard and more strict rules for
the machine or devices or the environment protection. Some laws and regulations
are even more strict than their peers like USA and European countries.


Although Australia
has such standards, GN Solids Control and GN
Solids Control’s equipments
was accepted by Australia. In fact, GN is
the first and only solids control manufacturer who provided to Australia.

Why GN Solids Control?
As a private owned company, GN has no special background or mother company to
be covered with. That’s why the quality is the most important thing. To win a
future and reputation is always what GN does for the past years, and for the coming
years also. Year in and year out, GN has developed from a small company to a
world well known brand.

In domestic
China, there are lots of HDD contractors who buy from GN, and they are giving
repeated orders because they found GN a reliable company with good quality
products. In outside China countries, GN provided to South America, to Asian
countries and to Middle East countries like Saudi Arabia.

When talking
about clients’ countries, we can not let go Saudi Arabia. Before meeting GN
Solids Control, the Saudi Arabia HDD companies only purchased from US brands,
for shakers, desander, desilters and complete
system. But they turned to GN for more cost-effective solutions, maybe at first
they just had a try, because they didn’t believe in some Chinese
manufacturers,. But later GN proved to them that there are high quality Chinese

And also, many
HDD rig companies are sourcing from GN to make rig package with GN mud
recycling systems.

For more
information of HDD, CBM or piling systems, welcome to contact us freely.

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GN leads the way in solids control
technology with it new designed decanter centrifuge in
China. As the firstly API certified manufacturer of solids control equipment and
system in China
, GN has always been keeping its leading position in
international market by it advanced technology. Early in this year, GN has
improved its decanter centrifuge to make it more suitable to treat drilling
waste which contains relatively larger solids content. So GN made a series
specific design to reduce abrasion on the screw conveyor and avoid solids accumulating
inner the bowl cover. The new designed decanter centrifuge has been proven to
have stable operation and more satisfying performance, thus becoming popular in
the international market, especially in the Middle East and Africa, Latin
America. Recently GN delivered 6 sets of decanter centrifuge and 40 sets
agitators to South America. The new designed centrifuge also can be used as the
final stage solids control equipment in a complete set of solids control system for
oil and gas drilling.
The mud agitator is used to rotate the mud to
keep it homogenous.

Now GN is manufacturing one set of solids
removal unit for a South America customer. It will be used the clean the
diamond drilling fluids for recycling usage. Besides solids control systems for
oil and gas drilling, GN also designs and supplies desander unit for bore piling and TBM; mud systems for HDD
drilling, CBM drilling, water well drilling, geothermal drilling. The main
treating equipment is shale shaker and desander, desilter, or mud cleaner with
the combination of desander cyclones and desilter cyclones. The shaker is used
to separate coarse solids, and then the desander to separate solids over 40 micrions,
and the desilter to remove solids over 25 microns.


GN Solids Control decanter centrifuge is professional for
oil & gas drilling, horizontal directional drilling, coal bed methane
drilling, diamond drilling etc. The centrifuge is liquid / solids 2-phase
separation equipment
, the separation point is 2 to 5 microns.


 Recently, we have customer from CPP, China petroleum
pipeline bureau company, the largest HDD contractor from China. They just buy 2
sets of
500gpm mud system
, each system equipped with 1 sets shaker with 2 ea desander
cones, 1 set shaker with 12ea desilter cones, 2 sets middle speed centrifuge
GNLW452. The middle speed centrifuge standard model is fixed speed centrifuge
with 1800RPM. The customer like customized centrifuge with variable speed
control panel. We company customized the fixed speed centrifuge to variable
speed centrifuge by adding one variable speed control panel with ABB transducer
inside to make the speed changeable. 1 set of GNLW452 centrifuge with treating
capacity 40m3/h, two sets means treating capacity 80 m3/h at same time. In this
case, the barite material in drilling mud can be take out by centrifuge very
fast. Thus, the total working efficiency will be promoted in a high level.

 Except of GNLW452 middle speed centrifuge, GN
Solids Control also have other model centrifuge for other application.

 1) GNLW363CG or GNLW363CG-VFD is high speed centrifuge,
fixed speed / variable speed two options for customer. This centrifuge is
professional for drilling mud weight reduce for solids control. Or it can be
used for drilling
waste management
to remove the very fine solids from drilling waste, thus to
reduce the oil on cuttings (OOC).

 2) GNLW553 big bowl big capacity centrifuge. If in some
certain case, the customer don’t want to use desander unit or desilter unit,
the customer may only use shale shaker & centrifuge for fast drilling. This
kinds of combination can also reduce the power consumption in a large degree. Because
when you use desander units or desilter units, big pump with electric motor is
generally needed.

 GN other model centrifuge, like GNLW223 baby centrifuge,
GNLW453 big bowl centrifuge is also available.

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operating well drilling, the drilling
fluid centrifuge machinery
is one of the central
equipment that is often used, its purpose is mainly used for separating fine
solid debris whose diameter size are 2-7 μm from the drilling fluid.   By using the drilling fluid centrifuge to
remove solid debris, it can effectively well lubricate and protected the drill bit;
it also has a very important role of improving drilling bit speed. With the oil
drilling industry ways and the technologies are getting mature; the drilling
fluid centrifuge manufacturing technology has been greatly improved as well.
However, there are some inherent mechanical issues if not solved it will give
the operators many function issues.


We as
manufacturer often have seen operators encounter issues below:

1. Bowl fault.
2. Consumable parts (inlet pipe, shockproof strip) problem.
3. Excessive vibration wile machine is currently working.
4. Outlet blocking by solids wish to remove from fluid.
5. Explosion-proof plug damage.
6. Centrifuge scroll damage.
7. Bearings failure while process of operation.
8. Drilling fluid centrifuge hoses damage.

We as
manufacturer suggest below if such issues operators encounter:

must understand that regular maintenance on the centrifuge such as regular
cleaning the inlet and outlet by filling water or diesel depends what kind of
fluid it needs process.  It is also
crucial that add grease to the bearing parts to ensure proper lubrication.

needs regularly inspect often- damaged parts on the drilling fluid centrifuge,
such like hoses. In order to ensure the process in the use of these parts in
normal way this influences the production. Finally, electronic parts of the
centrifuge are working the best by running certain period of time frame (like
none-stop for hours). It needs, reduce the rapid turn on and off of the
centrifuge. If properly operate the centrifuge like mention above, then
operators will find out centrifuge failure rate will be greatly reduced during process
the drilling fluid

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