Author: gnadmin

As first API certified solids control
manufacturer in China, GN Solids Control has provided to more than 60 countries
and regions with its cost effective products, covering all related main
equipment of solids control and waste
management line for oil and gas drilling

The main principle of the
solids control systems is physical separation, using the physical
characters of different media, the solids control equipment separate as much
solids from the liquid. Right now, in other industries besides the oil and gas
drilling, such functional equipments are also chosen by the end users, to make
their work more efficient and easier

Physical Functions of solids control
equipment:

Since the most important solids control
equipments are respectively shale
shaker and decanter centrifuge, we talk about only these 2. Now in many oil
and gas drilling jobsite, the end users choose to use more shakers and
centrifuges instead of former hydrocyclones.

1. shale shaker. Shale shaker is the most
efficient equipment in solids control process, because it uses less energy
while separates the most solids out of the liquid by using the different size
of the solids and by means of different size mesh on the shaker and a couple of
vibration motors. The disadvantage is that the shaker could not separate very
fine particles, and its separation work is a bit draft. GN has 3 nos screen
shale shaker and 4 nos screen shale shaker for option with model GNZS703E and
GNZS594E.

2. decanter
centrifuge is a high speed rotation machine, mostly horizontal. It has a
high speed rotating bowl and inside bowl there is an impeller. During the
rotating, the centrifugal forces on different material are not same, that
causes the liquid phase continuously flows out of the bowl while the solids
particles are slashed on the bowl inside wall and pushed out of the centrifuge solids
discharge ports. The decanter centrifuge a gentle and precise, more costly than
shale shaker, not only the cost of itself, but also the consumption of electric
power. But it is ideal solution for separating out the fine and extra fine
particles. GN centrifuge family covers all common sizes of decanter centrifuges
from 9 inch bowl diameter to 22 inch bowl diameter, among those centrifuges,
GNLW363 with 14 inch bowl is the most popular model

For more information, welcome to contact us
freely or visit our website.

Related Posts

• GNZS series shale shaker maintenances
• Linear motion shale shaker facts
• Choose a Suitable Shale Shaker for Your Jobsite
• Noise happens on decanter centrifuge

Decanter centrifuges have been working as
very essential equipment for separation ever since it came out years ago, it is
widely used in many industries, including the food industry, chemical industry,
pharmacy industry and oil and gas industries.

Divided by the types, the decanter
centrifuges could be defined as horizontal decanter centrifuge and vertical
decanter centrifuges. The working principles are same that by using the different
centrifugal forces laid on the different size materials, a certain sized
particles are separated out. In oil and gas industry, horizontal decanter
centrifuges are commonly used while they use Vertical Cuttings Dryers in front
of the horizontal decanter centrifuges. GNLW series decanter centrifuges covers
all necessary sizes and applications used for oil and gas drilling, such
applications including following:

GN Decanter Centrifuge Familiy: 

1. GNLW452, 18 inch diameter of bowl, big
bowl centrifuge, middle speed. suitable for solids control application in oil
and gas drilling, especially for barite recovery. Barite is heavy and expensive
drilling material in the drilling liquid and could be suitable for re-use if it
is well recovered. This model of GNLW Centrifuge is normally fixed speed as
standard configuration, but it still has 3 optional speeds by changing the
pulleys and belts

2. GNLW363, 14 inch diameter of bowl, most
popular size in oil and gas drilling, high speed up to 3900RPM, it provides the
most applications among all GNLW centrifuge models, in case of fixed speed
GNLW363, GN designed 3 optional speeds based on the experiences in previous
projects, and end user could choose via using different pulley and belts. In case
of VFD controlled, GN also have 2 optional VFD control panel for option, the
speed could be set from 0 rpm to 3200 rpm.

3. GNLW453-VFD decanter centrifuge, 18 inch
bowl diameter big bowl centrifuge, with larger length diameter ratio as above
mentioned GNLW452, higher speed and for extra fine particles comparing with
GNLW452, but with larger treating capacity than GNLW363.

4. Big big bowl centrifuge GNLW553C-VFD
with 22 inch bowl diameter, which is no doubt a big guy in centrifuge family,
and GNLW223 decanter centrifuge with only 9 inch bowl and a very high speed,
which is a baby member in GNLW centrifuge family.

Among all the products and systems provided
by GN Solids Control, although the solids control and waste management systems
always occupy the largest portion, the piling systems and HDD mud recycling systems
still have their certain share in GN’s products. Like in some places where the
oil and gas resources are not so affluent, there are always construction
companies who buy TBM systems from GN.

This picture is taken in GN Solids Control’s
workshop, in this picture, there are 3 sets of piling unit, ready to be
delivered to an Asian country. It is a repeated order from old clients, who has
been using same piling unit from GN Solids Control for several years. Now they
have new projects to be started and they need at least 3 sets.

What is the capacity of those 3 Piling mud
unit?

For this order, they are 200GPM Mud systems,
with 1 double deck desander and a small tank underby, this is standard model of
GN Solids Control GNMS-200D. It is not only suitable for the piling projects,
also called TBM, and also suitable for water well drilling and small HDD
projects, which use water as the base media for drilling.

Besides this model, for same function mud
systems, GN also have standard 500GPM and 1000GPM capacities available with
models respectively GNMS-500D and GNMS-1000D.

What’s the working process of GNMS-200D mud
systems?

The piling systems are normally used
alongside the piling machines. The slurry first arrives the lower layer shaker
for separating out the larger solids, normally, end users choose mesh 15 or
mesh 25 screens on this layer of shaker.

Then the slurry pump or centrifugal pump
transfers the slurry to the desander cone for the second step of separation.

Who
purchased such systems from GN Solids Control?

For the same piling systems, GN has clients
nearly all over the world especially in Asia, outsite China, Korea, Singapore,
India, Vietnam, etc. In Australia, GN is the first and only solids control manufacturer
accepted by Australian market. In middle east, GN products spread to Saudi
Arabia, Kuwait, Iraq, Iran and Oman.

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We have never been so far, we may did not change the
world, but we lead the market. Before GN Solids Control, in the
China market, there is only US copy shakers, which is basicly a shale shaker.
But it is not beautiful.

We realized this problem from the moment we start our
business, what will we do? Then one of the client gave us some idea, you need
make the shale shaker itself
sexy. It is not an art, not rocket technology, but it needs to be beautiful.

That is how GN Solids Control Equipment comes. 

Then to do it in better way, we focused on customised
systems, as though a lot of small suppliers in the market, keep lower price for
market, not too many of them do anything for the system design. It is hard to
say you need change this mud
tank because you need make it beautiful, and useful, user friendly.

Then GN did. GN is the first company in China who fold up
the walkays for fast moving. 

GN is the first one who supply the system with jet legs.

GN is the first one who supply the drilling
mud system for helicorptors.

Every time when the clients told us their headaches, we
solve it. A customized solution, to make a system useful, user friendly.Because
we are listening the stories, the feedbacks, the headaches from the client,
from the operations.

For engineers, all of them need go to the site, to learn,
how people use it, and then think how to make this even easier.

So do not mind share more with GN Solids Team, to help
them, to help yourselves make better products.

 

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As introduced before, COSL purchased one
set of drilling
waste management system from GN at May, 2015. Because of the satisfying
performance and cost-effective price, COSL has already placed a repeated order
recently, and the drilling waste management system now is finished and ready
for delivery. Since China’s government carried out more strict regulations on
the drilling waste disposal on the site, GN Solids Control has captured this
chance with the powerful base of high quality and stable drilling waste
management products, with over 30 sets drilling waste management equipment delivered
to the domestic market including high G shaker for water based mud cuttings,
vertical cutting dryer for both oil and water based mud cuttings, decanter
centrifuge for liquids discharged from drying equipment, screw conveyor for
the transportation of cuttings, and screw pump for the delivery of liquids.

Drilling waste management equipment is to
treat the cuttings discharged from shale shaker, desander, desilter, or
mud cleaner in the order to collect more clean fluids and to dispose the waste
in compliance with the environmental regulations. High G shaker is usually used
to treat water based mud cuttings; vertical
cutting dryer is usually used to treat oil based mud cuttings but also can
treat water based mud cuttings. In a complete set of GN drilling waste
management system, there will be high speed decanter centrifuge to treat the
liquids discharged from the drying machines to collect more clean fluids
retuning to the active system for recycling usage. Now GN drilling waste
management equipment is now operating in many jobsite such as in many places in
China, and in a Cyprus site to treat offshore oil based mud cuttings, and also
in Russia for Baker Hughes project from last December to NOW.