From early 2015 till now, the crude oil price is like the roller coaster, falling dramatically and then up a little bit then down again. It’s testing everybody’s heart durability. Recently the oil price seems a little bit stable than before. The West Texas Intermediate oil price fluctuate between $45 to $50. Well, this seem better than the price earlier this year which dropped below $30. But it still far below the price for the oil company can make money. Everybody is struggling, nobody wants to give up and if we can’t make money, we need to try all of our best to figure out how to save money. GN Solids Control, as the leading company in the solid control business, can help you save money and survive in the tough time.

As an important part of the drilling system, solid control system plays crucial role in the whole process. If managed well, the solid control system can save you a lot of money in terms of the mud cost, the consumables, and equipment procurement cost. GN’s equipment from shale shaker, desander, desilter, mud cleaner, decanter centrifuge, to agitator, centrifugal pump, mud gun and various of tanks, are all cost effective and good value for money. There are several advantages GN can reduce the equipment price. Now GN has realized the large scale manufacturing for the equipment and consumables like screens. This can help reducing the procurement cost, labor cost and be more efficient. If the quantity is large, this will also reduce the transportation cost. All GN’s equipment are skid mounted and easy for transportation, this will save a lot of handling fee. Recently the US dollar to Chinese RMB exchange has increased, this will make the equipment price more competitive. And GN’s No. 2 new facility has been into operation, mainly used for manufacturing the shaker screens, this will increase GN’s manufacturing capability, good quality control and delivery time control. It will finally reduce the cost a lot and bring many more benefits to customers.

We will try our best to assist your business to be successful. Welcome to visit and please send your inquiries to

Bauma China 2016, as the largest construction industry show in Asia, will be held in Shanghai  from November 22 to 25. This show is mainly about the machines and equipment, such as the building material machines, mining machines and construction vehicles. Now this show has become a great platform for product presentation and industry party for all the exhibitors, visitors to communicate and cooperate with each other and find more business opportunities.

GN Solids Control as the leading manufacturing company for the solid control equipment and mud recycling system will attend the show this year and will present its latest mud recycling system. The booth number is E3. 675, welcome all the friends from domestic China or overseas to visit GN.
GN’s mud recycling system could be used in many areas, such as the TBM, HDD, piling, boring, oil and gas drilling, civil construction, dredging, etc. According to different customer’s requirement and the different situation for each project, the mud recycling could have different configurations and different equipment in it. Usually the mud recycling system will consists of shale shakers, mud cleaners, desanders, desilters, decanter centrifuge, centrifugal pump, different tanks, mixing hoppers, submersible pump, screw pump, etc. According to customer’s different separation requirement, the mud system will include different equipment. The hydrocyclones could separate the solid size from 20-40 microns. The shale shaker will be used as the scalping purpose to separate some big solids. The decanter centrifuge could be used for even finer separation for the solid size of 2-5 microns. After the solids to be removed and the mud could be reused in the mud system again for drilling.
Welcome again to GN’s booth in Bauma China 2016. We believe you have got a different feeling for the mud recycling system used in the civil construction. If you have some further interest, welcome to visit and please send your inquiries to .

Mud cleaning system is critical in the drilling process as they protect the system components by lowering solid/sand content in the drilling fluid. Cleaner fluids means much longer and expandable life in the entire mud cleaning and pumping system. Lowering solid content also allows drilling fluid to carry the sand from the bore more efficiently, making for a better bore hold and improving the rate of penetration dramatically. And it can also solve the environmental and disposal issues and save a lot of cost.

GN Shale America
GN’s mud cleaning system are made on skid, like modular, which makes it very easy for transportation. The mud system mainly includes five components: shale shaker, shaker screens, hydrocyclones( desander, desilters), mud tanks, and electrical motor and centrifugal pump. GN’s shale shaker is mostly in linear motion and is used for the coarse separation. It mainly separate the solids by its size by the screen. For the screens, GN now can manufacture its OEM screen with GN brand, also it can manufacture some famous replacement screens, such as DERRICK, MI-SWACO and BRANDT. After the shale shaker, the mud will be pumped by the centrifugal pump into the hydrocyclone which uses centrifugal force to separate the solid from liquid. It can separate the solid size up to 20 microns. The mud tanks usually have 3 compartments, which will hold the mud coming from different separation stage. The size and capacity will depend on the drilling rig size and fluid flow rate. Now GN can manufacture and supply all the components with high quality and low cost.

That’s the brief introduction about the mud cleaning system. Hopefully it will be useful to you. GN has many more solid control systems, they can be used in different operational situations and help you achieve your target easily and cost effectively. Welcome to visit and please send your inquiries to

Containerized Dewatering Unit

The coagulation and flocculation unit
(hereinafter referred to as the CFU) is intended to serve as the mobile
unit for centrifuges chemical improvement while the drilling mud cleaning
(extraction of “process water” non-combined solvent and removal of the “drilled
solids, solid and dissolved chemical reagent” solids from the mud by
preliminary chemical treatment of the mud and subsequent phase separation in
the centrifuge).

The GNDU2000 Series 20FT Dewatering Unit
provides a process of chemically enhanced configuration to remove the fine
solids less than 5 microns from the water based drilling fluids. As it known
that traditional solids control equipments like shale
, desander,desilter,
and decanter
will removes solids upper than 5 microns, for colloidal-size
particles which is less than 5 microns will build up in the drilling mud
system. To maintain the drilling mud properties, the operators have to dilute
the drilling fluids with water, this consumes more water and create more
drilling waste.

The mud to be cleaned is supplied from mud tanks to the
station by the centrifuge feeding pumps. The mixing device (mixer) is installed
inside the CFU. The CFU process equipment perform the mud mixing (dosing) with
chemical reagents in the mixer, then the mud is fed from the CFU to the
centrifuges. Centrate (process water) obtained in the centrifuges returns to
the CFU, and solids contained in the mud are removed by the centrifuge and
transferred into the sludge transporter. Centrate (water) is measured in the
CFU and if its parameters are satisfactory, the station pumps transfer it into
the tank (receiving tank) for the new mud mixing. If results are not
satisfactory, the centrate is pumped into the sludge transporter.

Mud and water are delivered and discharged
from the CFU by flexible hoses. The water supply system shall provide water
flow rate of approximately 3 m3/h for mixing in tanks. Centrate overflow,
centrate output to the storage vessels, centrate output to the control vessel,
water input/output, mud input to cleaning shall be designed with quick-release
couplings DN50 and shall be located in the same port on the CFU outer wall. The
port is covered by cover with padlock. 50 meters of flexible hoses are included
into the scope of delivery. Centrate is fed into the centrifuged water tank by
DN150 pipeline. Pipeline inside the CFU is made of constructional carbon steel.
Flange and gooseneck outside the CFU is made of constructional steel and
intended for centrate feeding from two centrifuges. The flexible hose DN150
delivers centrate. 10 meters of flexible hoses are included into the scope of
delivery. All quick-release couplings, flanges, bolts, goosenecks shall be
included into the scope of delivery also.

The tank design is very important to keepsure all design reaches requirement and convenient for operators. The mud tank need consider its usable muddepending on drilling conditions and need consider its active circulation todrilling hole. The mud tank capacity will be affect by drilling depth also .Usable
mud is defined as the mud volume which can be pumped before suction is
lost. For example, a typical 20,000 f t
well will normally require a minimum active system tank volume of 1000 bbl.


The active surface system will be divided
into two parts, solids removal and addition suction. All solids removal
equipment and degassing equipment in the solids removal part the addition suction
part is designed to make fresh mud to the circulating system and provide
sufficient residence time for proper mixing to occur before being delivered to downhole. A slug tank is usually available to pump
small “pills “such as LCM or barite slugs for tripping. Each part must be
further divided into enough compartments to efficiently carry out its designed
function and circulation application.

The quantity of compartments required will depend
on the amount and type of solids removal equipment like shale shaker, desander, desilter, decanter
centrifuge and vacuum degasses system size and circulation mud flow each
compartment must have enough surface area to allow entrained air to break out
of the drilling mud. A rule of thumb for
the minimum surface area is calculated by: Area (squarest) = Maximum
Circulating Rate (GPM)/40To maximize solids suspension and usable volume, round
type tank with conical bottom is the best option for a tank, square or
rectangular shape with V bottom is the second option for mud tank, Square or
rectangular shape with a flat bottom is the last option but easier for
manufacture. The ideal tank depth is same with the tank width or diameter of
the tank. This design provides good pump suction head and is best for complete

GN builds many different type of tank with
different design; please contact us for more designs.

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