gnadmin | GN Decanter Centrifuge

GN Fixation Unit for Drilling Waste Management

GN Solids Control is complete line drilling waste
management solution provider, related equipment like vertical cuttings
dryer, High G dryer, cuttings fixation unit, thermal desorption unit etc.
Different countries have different regulations on the treatment of drilling
waste discharged from shale shaker & mud cleaner &
centrifuge.

Like client in Nigeria, most of land rig
oil drilling company do like this:

1)
Use one set vertical
cuttings dryer + one set decanter centrifuge at rigsite. During drilling
period, the drilling waste discharged from shaker will go to vertical cuttings
dryer for recycle and reuse. The discharge solids from vertical dryer will be
collected by cuttings skips. The drilling fluids will go to centrifuge to
remove fine solids and then, go back to active mud tank for reuse.

2)
The cuttings skips for vertical
dryer, cuttings skips for mud cleaner and cuttings skips for centrifuge will be
taken to mud factory which have thermal desorption unit for final treatment.

3)
Vertical cuttings dryer is
mostly used in oil based mud drilling waste management. If for water based mud
drilling cuttings treatment, high G shaker is mostly
used. Because of lower environmental containment of WBM, high G dryer is very
lower cost than vertical cuttings dryer.

Like client from Algeria / Gabon, they like
to use cuttings fixation unit for final treatment at rigsite. They transfer the
drilling waste into the fixation unit, with curing agent.

Except for the drilling waste management
equipment, GN Solids Control also produces large quantity of solids control
equipment. Each year, we provide over 250 sets shale shaker & mud cleaner
& desander &
desilter; over 150 sets decanter centrifuge; over 400 sets centrifugal pump
& shear pump & submersible slurry pump & screw pump.

We can also offer complete line of solids
control mud system for oil & gas drilling big drilling rigs; compact small
mud system for HDD small rigs/ water water small rigs etc. For clients with
similar requirement, pls contact us freely.

Chemical substance enhancing centrifuge system intended for oily sludge

Compared with drilling cuttings (discharged
from shale shaker), oil sludge much more difficult to be treated along with
recycled. To have better perception of oily sludge, we have to understand what
oily sludge is as well as where it is from. Could you get more info from a
search engine engine. And from under chapter, we can know how to cure the oily
sludge and results we can get after therapy.
GN Solids Control is definitely
China & USA primarily based leading manufacturer for soids control &
drilling waste materials management equipment. Studied in addition to China
Oilfield Service Minimal (short for COSL), GN Solids Control develop the very
first sets of Chemical boosting centrifuge system for slimy sludge treatment in
commencing of 2015, after work site test and application, the result is great. COSL repeat another 3 sets centrifuge system
obtain in past several months.

1) Chemical enhancing centrifuge technique configuration:
a. one pieces small mud
tank to help suspending the oily sludge before treatment. Mud Brawler
installed to get better performance
udemærket. Chemical enhancing system. The consumer can add chemicals from
benefit hopper. All the motor with Chemical enhancing system is managed by a
separate panel attached with the system
c. one value packs GNLW363CG-VFD
decanter centrifuge. This centrifuge speed can be easily tweaked by the
separate VFD cp and get stepless speed adjusting. The centrifuge can get to to
3200RPM, remove extra fine solids 2-5 microns. There is a catching tank under
the centrifuge to hold the fluids parts discharged from decanter centrifuge.
All the parts is created on a 11 meter more time oilfield skid, with moving
points for easier motion.
d. Screw conveyors is likewise necessary for the system, to shifting solids
discharge / with regard to other application.
GN solids Control offer 3 value packs 1000hp mud drilling process and 1 set
17-tanks liquid mud plant to be able to COSL in last
year. We all build strong relationship along with COSL and are registered
devices supplier for COSL, Cina largest offshore drilling builder.

two Package Drilling waste management instrumentation prepared delivery for continent market.

GN Equips the Solids Control Equipment with Own Fabricated Control Panel

You know why in the industry of drilling fluid
solids control equipment manufacturing, GN Solids Control always keeps the
leading position? Besides GN’s keeping improving the products quality, the continuous
launch of new products is also a factor. From the manufacturer of primary
solids control equipment to the supplier of both solids control and waste
cuttings drying management solution provider, GN’s keeping improving is
obvious to all. Now GN can also equip our machinery with the control panel
assembled by our self.

In order to meet demand of oil industry,
all of GN’s control panels are flame proof type, or called explosion proof
type. Mainly GN has 2 flame proof types control panel: one is isolation
explosion proof; this type control panel has a panel case that could isolate
the flammable gas with the inner space of the panel. In case the wire circuit
produces spark, due to the isolation function, the flammable gas will get into
the control panel so as to prevent the explosion. Always all GN’s equipments
are equipped with this type control panel like the shale
shaker, vacuum
degasser and fixed speed decanter centrifuge as well as cutting dryer unit.

GN also has VFD control panel for the decanter centrifuge
and cuttings dryer unit. This is all because these 2 equipments will perform to
get different result when running at different speed, which could make the
equipment meet the demand of various working condition. GN’s VFD control panel
outside shell is stainless steel material with excellent appearance. It is
positive pressurized control box with cooling tube or air conditioner for
working in high temperature. The VFD is ABB or Siemens brand. PLC smart control
with HMI interface is for manual and automatic operation and protection.

All GN’s control panels except VFD type are
Ex marks as Ex d II Bt4 for Class 1, Division 2 application. All the positive
pressurized VFD control panels are Ex mark as EXdeib PZ IIB T6 for Class 1,
Division 2 application. ATEX and IEC explosion proof certified are also
optional upon request.

Water based mud drilling waste management system for CNPC & Sinopec

Since the new regulations for China oilfield
environment is issued, GN solids control has
provided over 25 sets of drilling waste management system for their water based
drilling fluids.

The main features of GN drilling cuttings treatment
system including:

1 Modular design: vertical
cuttings dryer, high G dryer, decanter centrifuge are all set on top of the
telescopic skid as a separate module, each module can be used separately when
the actual situation is required by the rigsite, and they can be used together
for best performance.

2 Less cost, good effect, the cuttings discharged from
the vertical cuttings dryer is dry as powder, which can be disposal directly or
used for construction industry without damage of the environment. Before using
GN drilling waste management equipments, the drilling company use the truck to
ship the drilling cuttings from the mud pit to a waste management factory, the
liquid waste spray out and they get a lot of complains from the farmers.

3 To recycle/reuse the clean fluids and less the
drilling cost. The working principal of GN drilling cuttings treatment system
is mechanical separation, without any chemicals additives. The clean fluids
discharged from
decanter centrifuge can be used for preparing the drilling fluids. Unlike
other supplier’s proposal, we do not add chemicals during the process, it will
not damage the configuration of the original drilling fluids, it can save a lot
of cost for the drilling fluids and less the waste treatment cost.

4 The high-G dryer is used to less the fine solids
content of the drilling fluids before feeding to the decanter centrifuge, the
unique design can make the centrifuge working longer time with less wear on the
screw impeller.

5 The drilling
waste management system for water based drilling fluids can be also used
for your oil based cuttings treatment, you do not have buy another unit , this
modular waste management system can be used for both of your applications.

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Positive pressurized VFD control panel for variable speed decanter centrifuge

As one the lead decanter centrifuge
manufacturers in the world, GN solids
control( with branch office GN solids America in Houston) provide both high
speed decanter centrifuge and variable speed decanter
centrifuge with VFD control panel, VFD decanter centrifuge the most popular
model during our clients from over 60 countries in the world.

We provide 4 types VFD control panel of
decanter centrifuge based on different clients requirements:

1 positive pressurized VFD control panel for
explosion proof Exd II BT4 with PLC control

2 positive pressurized VFD control
panel with IEC certificate with PLC control

3 positive pressurized VFD control panel with
ATEX certificate with PLC control

4 flame proof/ explosion proof control panel

The positive pressurized VFD control panel is
specially designed for the working site with high temperature, moist air, heavy
rain, strong sunshine area with good performance. To ensure the long operation
life, we also suggest to use a sun/rain proof cover on top of the centrifuge
unit, as GN
drilling waste management project in Sichuan, China, Where is a lot of rain
and very moisture air.

With air cooler inside the control cabinet, we
have a temperature sensor installed and setting according the environmental
temperature and client’s requirement, once the inside temperature reached the
setting value, the cooler unit will start to work and feed to the inside
cabinet cold air and let the warm air out, the constantly circulation make the
inside cabinet to remain the respectively cool and will not be too hot during
long term working in the hot weather.

PLC control VFD control panel change the
frequency smartly, the last flame proof/ explosion proof control panel can not
work in hot weather, the electric components will be too hot to stop working or
be burned when it becomes hot. And the frequency inverter is working through
very traditional way. Such products are only supplied to the cold area or when
cheapest price is required by the client.

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