mud cleaner

Decanter centrifuge is seldom
used for horizontal directional drilling because of the high cost and
separation factor. Only when the fine solids accumulated on the mud recycling
system and the desilter cone can not separate them out, then the recycled mud
can not be used for drilling unless the fine solids (smaller than 15 microns)
could be reduced. GN low speed/ middle speed decanter centrifuge GNLW452
centrifuge should be used by such situation.

GN has shipped 4 sets of
1000gpm mud recycling system with 2 units of GNLW452 decanter centrifuges for
CPP(China Petroleum Pipeline Bureau) for their crossing project. Totally 4 sets
of desander mud cleaner with 2 10inch desander cone and double deck shale
GNZS705, 4 sets of desilter mud cleaner with 10pcs 4inch desilter cones
with double deck shale shaker, 8 sets of GNLW452 decanter centrifuge with 18inch
bowl diameter, 1800rpm speed, 8 sets of centrifugal pumps to feed for the
desander, desilter, 8 sets of feeding pump for the decanter centrifuges. 8 sets
of 20ft container to install the equipments on it and with storage capacity.

This is not the first order
from CPP, they start to buy mud recycling system for HDD since 2010, and until
now they already bought 30 sets of drilling mud cleaning system from GN solids

The function of the decanter
in this system is not to separate all the fine solids under 15
microns, the purpose is to reduce the fine solids content in the recycled
fluids so it can be re-used for the drilling. So the centrifuge capacity do not
have to equal with the solids control mud cleaner, it is not always running, we
will open it according to the mud conditions.

Not only for HDD mud recycling
, the same design could be used for tailings treatment of mining, oil
drilling. Welcome to contact GN solids control for more info.

The special screw conveyors are jointly designed and manufactured by
GN Solids Control and Italy Brand WAMGROUP, which can be widely used for the
drilling cuttings transfer, including water based cuttings, oil based drilling
cuttings, synthetic based drilling cuttings.

Features of GN new
designed screw conveyor:

Main body with reinforce support

Motor and gearbox with protection frame

Standard 12 feet each section, interchangeable,
2 or 3 or 4 sections length are available for choice

The screw material is 16Mn, with good abrasion

The screw
diameter varies from 12inch to 18inch, including 12 inch, 14 inch, 16 inch
& 18 inch

Can be installed on both the mud tank and on the
ground, horizontally installed or slanted installation with the angle smaller
than 40 degree.

VFD control panel is for option to adjust the
speed of the motor and control the flow rate

The screw conveyor is normally used in drilling
cuttings transfer system, working together with GN drilling cuttings treatment
system, it is used to feeding for the vertical cuttings dryer, collection of
cuttings from the shale shaker, mud cleaner, decanter centrifuge, and
collection of discharged solids from the vertical cuttings dryer and decanter
centrifuge, and transfer them to the cuttings box.

How to choose the correct model of screw conveyor?

Pls contact with GN solids control and provide the
info as below, we will choose the best suitable model for you.

distance from the feeding screw conveyor to the cuttings dryer

distance from the cuttings dryer to the cuttings box

shale shaker, desander, desilter etc solids control equipments model and qty,
we will calculate the approx length and choose the suitable sections for you

you can tell us directly the length and diameter of the screw you required. 

GN decanter
can be applied to both oil based mud and invert drilling fluids, and
water based drilling fluids and Synthetic Based mud.

drilling fluids are generally used where drilling problems not easily handled
by water-based fluids are expected, or in situations where the invert drilling
fluid is more economical. The major advantage offered by invert fluids is
increased borehole stability.

Invert emulsion
fluid decanter centrifuge models:

GN centrifuge

sludge waste treatment with polymer mixing unit as dewatering unit, pls check
the working videos for COSL from here:

based drilling waste management for Sinopec, pls check the working video from

loop drilling waste management system together with GN solids control system
and vertical cuttings dryer:

decanter centrifuge for no pit drilling together with Hi-G shaker,

To Serve our
clients better, GN solids control keep our main equipments in stock , including
different sizes decanter centrifuge, vertical cuttings dryer, hi-G drying
shaker, shale shaker, mud cleaner, economy mud cleaning system, etc.

GN vertical
cuttings dryer can be used for both water based mud and oil based mud, we are
the first China solids control equipments manufacturer who firstly designed
such multi functional vertical cuttings dryer and firstly field proved for
drilling waste management. Our unique air knife design can avoid the screen
basket blocking for water based drilling cuttings.

If you need
customized invert drilling fluids decanter centrifuge system, pls contact GN
solids control.

GN solids control specialized
at customized TBM slurry separation plant with polymer mixing and dosing unit
as a complete system, the polymer mixing unit is applied for polymer flocculant
mixing and feeding to the dewatering centrifuge to get the water as clean as
possible, to separate more fine solids under 5 microns.

is the short name for Tunneling Boring Machine, Tunnels of less than a metre or
so in diameter are typically done using trenchless construction methods or
horizontal directional drilling rather than TBMs.

ever designed a containerized dewatering unit for Tunneling project with the
same application, the main purpose is to get clean water, and dry solids for
disposal. The polymer mixing unit can be installed inside the container
together with GN big bowl decanter centrifuge, by this way, it is convenient
for movement, also it can be located on the skid without standard shipping
container for cooling and easy maintenance, also the cost is much cheaper. We
can make it customized to meet the client’s requirement.

are 3 parts in the TBM slurry separation plant: Solids removal unit, polymer
mixing and dosing unit, dewatering unit with dewatering centrifuge. We provide
various options for solids removal unit/ mud cleaning unit, depends on your
required electricity power consumption and budget, we can provide 2-phase
cleaning compact design( double deck shale shaker + desander cone or double
deck shaker + desilter cone) or 3-phase cleaning premium mud cleaning system,
with shale shaker, mud cleaner( shaker, desander cone, desilter cone 3 in 1).

dewatering unit can be applied for both powder polymer and solution polymer,
with pre-humidifyng
system for the powder and dosing system.

We can make the dewatering centrifuge on the
same skid with the dewatering unit or separately. If you are interested in more
details, pls contact GN sales.


solids control
with booth number 9225-2, GN solids America with booth number
6137, got big success at OTC 2015. We showed the advanced version vertical
cuttings dryer GNCD930D, decanter centrifuge GNLW363CG-VFD, and GNZS594E-2S12N
mud cleaner. A lot of clients in oil & gas drilling industry, oilfield
service company, solids control service company, mud tank manufacture, rental
service , drilling waste disposal industry clients showed their interests on
our equipments.

Solids America just start a year ago, but we already got known by most of our
potential clients in the States, we always show our advanced equipments at OTC
every year, this is the 4th year to show at OTC since 2012. Right
now we have 9 shale shaker, 6 mud cleaners, 2 units of GNLW363CG decanter
in stock for immediate shipment. If your project need urgent
shipment, pls contact with GN solids America and visit our stand at OTC.

the suddenly dropped down in 2014 and at the beginning of 2015, oilfield
related projects are all slow down, and people stop drilling, service and see
what happened then. Although it settles up to USD60 a barrel recently, many
companies are still in a position to wait and see. At such cost sensitive period,
the drilling contractors, service companies intend to rent or buy solids
control equipments with good quality and competitive price to reduce their
production cost and make profit. GN solids control is a new brand in US market,
but we are not new for solids control industry, our solids control &
drilling waste management system has been working in many fields to over 60
countries in the world, including US, Canada.

have separated brochure for vertical cuttings dryer , decanter centrifuge,
drilling waste management system, welcome to visit us at OTC or Houston office
and get more details.