Solid control system, also referring as mud system, is used to separate the solids or gas from the drilling mud. There are several centrifugal mud separators such as hydro-cyclone separators (desander and desilter) and decanter centrifuge, and mud gas separator, which separate drilling mud and gas.

Hydrocyclone Separator

Hydrocyclone separator is always referring as desander and desitler, used after shale shaker in the solids control system. Usually the cone diameter is more than 6″is called Desander, and used as the second-control equipment in drilling operation. the cone diameter is less than 6″is called Desilter, and used as the third-control equipment in drilling operation. We commonly used 5 “and 4” cone to separate solid-phase particle size 15-47μm in the drilling fluid.

Decanter Centrifuge

Decanter centrifuge are used to process unweighted and weighted, water-based and oil-based drilling fluids (muds). Mechanical energy is utilized to increase the gravitational force exerted on solids that are present in the mud system. Continue reading →

Once a client asked a very interesting question. If we add Solids control equipment system ( Shale shaker,mud cleaner & vacuum degaser ) to the centrifugal decanter separator what will be the advantages ,or we can utilize only the decanter?
Briefly answer this question: Drilling mud with drilling cutting is very complicated. So we need a system to deal with different solids.
The equipments before decanter is used to separate the solids bigger than 7μm，maybe you can only use decanter, but I should say it is a precision instrument, and it is tender. A system is needed to keep each equipment work in his own role, and prolong each one’s life.

The Separation Size of Every Phase of Solids Control Equipment:

Continue reading →

Mud agitator is one important part of mud system, since GN Solids Control supply solids control equipments to Jidong Oilfield, there are 16 mud sotorage tanks, and each tank is used with 2 mud tank agitators. As we have introduced the mud tank agitator, here comes a more interesting question: how to size mud agitator.
I have give some Purchase Tips:

Please contact GN Solids Control representative with your tank dimensions and maximum mud weights for the correct agitator model, horsepower, impeller (size, type and quantity), and shaft length to meet your requirements.

• Mud Tank Dimensions

Mud tank dimension is used to confirm the length of the shaft and the type of the impellers.

• Motors

Which brand do you prefer, do you need explosion prevent motors.

• Gear box

This is the key part of tank agitator. Inch-bound is always needed. How to matching with the motor, and which rotate ratio is you really need.(Usually 60 or 72r/min)
P.S. : Contact GN Solids Control to get more professional advice.

A few days ago, our engineer comes back from Jidong Oilfield, and take some pictures of solids control equipment used in Jidong Oilfield, which is one part of CNPC.

They are used for a lot of years, and it keeps working very well even now, they are famous brand, and very expensive, but they deserve that. And then, after cooperating with GN Solids Control for a few times, we found a trustworthy company in China, I think. One of a leader in Jidong Oilfield.

After a series of trial order, Jidong finally purchase mud system from us, 16 mud storage tanks, and mud agitators compared with, and jet mud agitators, and so on. If it works well, they would cooperate widely with us for more solids control systems.
And GN will always keeping the principle, Quality First! And in the near future, not only Jidong, more and more uers of solids control system clients will choose us. Feel free to click here to contact.

Once one of our customer asked us a series of questions, and I find these question may be very useful for all the solid bowl screw decanter centrifuge buyers. So we answered all of them and post here for reference of our customer.

Know more about our Decanter Centrifuge or Download the decanter centrifuge brochure.

1.What type of material is used in constructing the bowl, scroll, heads, etc.? is it 316 stainless, carbon steel?
The material is usually SS304, and you can choose what type of material, SS304, or 316, or others you required. Price will be different. Because we located in steel city: Tangshan Hebei.

2.What type of material is the skid, case bottom and case top, guards made of?

Usually the Skid is Carbon steel Q235, Case Bottom ,case top, guards are made of SS304.

3.What type of gear box is used on the unit?
The gear box is cycloidal pinwheel gear box.

4.How many inch pounds can the gear unit withstand?
1739.2 inch-pounds (196.5 N.M)

5.what is the maximum operating speed of the unit closest to the 14”x48”?
Our high speed decanter centrifuge have two models, GLW355x1250N, and GLW-V355X1250N, maximum speed is 3200r/min. GLW-V355x1250N is variable  speed.

6.Do the units come with warranty? Continue reading →

Mud agitator can be classified to horizontal and vertical mud agitator. All GN mud agitators feature a brand motor coupled to a rugged oilfield gearbox, which eliminates misalignment and troublesome couplings. This configuration promotes longer motor and gearbox bearing life. This highly efficient gearbox offers a 95% power transfer, which is approximately 30% more than a worm drive gearbox.

Motors of Mud Agitator

The motors GN Solids Control used is brand motors in China, and as you requried, we choose different types of motors for the agitator. Continue reading →

Sand management is very important on oil and gas drilling, it effects the the drilling work, oil and gas production.
On the drilling work, the sand management is always referred as solids control system. Because the sand manage equipment is mainly a desander, and is a part of solids control, and if we want to have a excellent result, we must combine shale shaker, decanter centrifuge and so on.

Desanding the oil product is also important to make the oil clean. And thus desander is a very important part of it, and there are a lot sand control companies to do this.

Sand Management Companies Continue reading →

There are two kinds of degasser in oil gas drilling solids control equipments, one is vacuum degasser i.e. centrifugal degasser, the other is mud gas separation i.e. poor boy degasser.

The centrifuge degasser works using the principal of centrifugal force to separate gas from drilling mud. The device passes a gas-cut material throough a centrifugal force field to accomplish the degassing. The degasser contemplates the slurry flowing through the degasser by entering it through the top and flowing downward or entering from the bottom and flowing upward. In either case the slurry moves through the force field to accelerate gravity settling of the continuous phase of the flowable material and to accelerate buoyant force gas bubble rising time.

ZCQ Degassers provide effective degassing with high throughput by means of a unique centrifugal Vacuum design.

ZCQ Degassers are capable of handling high viscosity 20 pound mud with a 50% gas cut. They can draw up to 800 gpm and discharge as much as 400 gpm.

The ZCQ Degassing system is totally selfcontained on one skid. No auxiliary pump is required. Both suction and discharge are powered by a built-in Electric motor. Continue reading →

Drilling mud & fluid conditioning systems is an important part of drilling work. And it always containing well control lines, solids control systems, fluids treatment equipments and fluids transfer equipment etc.. I list all of them below:

• Degassers and well control lines

• Solids control through shakers, centrifuges and desanders

• Fluid treatment with mixers, hoppers, mud labs and chemical storage and handling systems

• Compartment tanks of various sizes and designs for each use

• Fluid transfer equipment such as centrifugal pumps, agitators and mud pumps.

• Interconnect piping and hoses

• Electrical and instrumentation as required

• Ancillary items such as walkways, handrails, stairs, work and office spaces and any other items required

Continue reading →

Mud recycling system is important in hdd boring,  how mud travels in hdd no dig system, is always a problem people may ask. And then, we concern what GN Solids Control can supply, and who all over the world have chosen GN.

How mud travels in hdd no dig system

The mud is born clean, it was mixed by bentonite and some chemical mixtures, then stored by a tank. Ready to go to the hdd no dig system. Then it was pumped to the pipe and to boring the hole, later it was bring back by the pipe to a storage tank with all the cuttings rocks and sands.
The mud recycling is needed now, the drilling mud with sands and drilling cuttings are pumped to the system, then the cleaned mud return to the pipe.
The mud recycling is usually including shale shaker, mud cleaner, or desander and desilter instead, sometimes decanter centrifuge is also needed. The drilling mud flow through the shale shaker, desander cones, desilter cones, then the decanting centrifuge.

All units within the range use two processes when cleaning mud to ensure the drilling fluid can be recycled and used to the efficiency of the first time it is pumped down the hole.

The first process is with the use of a shaker screen. When the mud is drawn from the hole it is first discharged onto a fine mesh, which constantly moves from side to side spreading the mixture across it. This allow the drilling fluid to fall through whilst larger items such as rocks and cutting remain on the mesh until they are shaken off its bottom edge and removed from the system. Continue reading →