Hole Openers are used for expanding the drilled hole，it is a kind of drilling rig tools. There are many good suppliers and manufacturer of hole opener in China, with  good quality and competitive price. Some of the manufacturer produced hole opener according to API standard.

 Function of Hole opener

 1. When drilling of the big hole is not possible because of the rig capacity.

2. When a satisfied penetration rate is not obtained in case of the big hole drilling, it is used after drilling with smaller bit.

3. When the hole direction most be controlled.

 Cutters of Hole opener

Several types of the cutter are

hole opener

 made available for various formations to be drilled, such as soft, medium and medium hard formations. Type SM for soft to medium formation,type MH for medium to hard formation and type XH for hard formation. For soft to medium and abrasive hard formations, the cutters with tungsten carbide tips are also available.

 Fixed Diameter Hole Opener

 Fixed Diameter Hole Opener is used to enlarge a hole or connected with a bit on front end to drill pilot hole and enlarge hole. Fixed Diameter Hole Opener is a general hole enlarging tool and is designed for enlarging holes onshore and offshore in oilfield during drilling. It is made of tough heat treated alloy steel for maximum strength. Cutter arms, equipped with removable cutter, are hardfaced and welded on body. The hole openers have three or six jet tubes with replaceable nozzles,so that jet streams quickly clean the enlarged hole.

 How to inquiry or order the hole opener in China?

You need to advice the following information.

1 Hole size

2 Pilot hole size

3 Top and bottom connections

4 Fishing neck and bottom neck length and OD.

5 Types of cutters (SM, MH, XH)

Hole opener manufacturer in China

1 Lilin Group, loaded in Tianjin city.

LILIN is the largest manufacturer of downhole drilling motor in Asia area. also famous manufacturer of drill bits in china. The company most significant value is our leading edge technolog ies and engineers that continually innovate and create update product to apply our technology to drilling situations.

2 Kingdream Public Limited Company located in Wuhan city

To know more about hole opener manufacturer in China or other drilling rig tools manufactures, pls contact GN solids control.

In the other days, a customer asked us about slime dewatering system. Their main purpose is to take out of the drain pits, means do not need very clean water. Then they tell us the distribution of the solids contents.

After know more about our equipments such as GNZS83-2 shale shaker, GNZJ83-2 mud cleaner, SB4x3x11 centrifugal pump and so on. They have got some questions, and I want to share then if you have the same questions, take this for your reference.

By the way, after export to more than 30 countries over the world, and we are more professional at solids liquids separation now. Here is the questions:

1) is it possible to produce the dewatering system with productivity less then 50m3/h?
Yes. Actually if you want drier solids, a little less is better.

2) how you’d suggest to unload filtered material to the carts from the system?
the filtered material can be loaded to the cars directly, pls kindly find the picture in the introduction document.

3) how do you load the system with watered slime? Continue reading →

Slurry handling system is also solid liquid separation system, while it usually refered in agriculture, dredger and other small projects.

Scraper are usually used for separation works, not always the shale shaker. And the working priciple is also a little different.

Shale shaker is widely used in slurry handling system.

Linear motion shale shaker

Agitators are also used for mix up the slurry and keep the slurry active.

Continue reading →

Slurry recycling is also very important in tunneling boring, piling, and so on. Equipments used in slurry treatment plant to keep the charactor of the slurry for recycling use.

These are a few sketchs for the TBM (tunneling boring machine) system. And as we can find, shker, desilter hydrocyclones are used in the slurry recycling, i.e. slurry treatment plant.

Continue reading →

Decanter centrifuge is used widely in solids liquid separation, in Oilfield Industrial decanter centrifuge manufacturer, we recommend GN Solids Control, and as we know, decanter centrifuge is really popular in oil/gas drilling, sometimes HDD, Industrial and biological wastewater treatment, and so on.

Oilfield drilling mud decanter centrifuge supplier:

GN Solids Control based in China manufacture and supply complete line of high-speed, variable-speed and fully variable-speed decanting centrifuge for handling drilling fluids.

High speed decanter centrifuge

M-I SWACO manufactures and markets a complete line of high-speed, variable-speed and fully variable-speed decanting centrifuges for handling drilling fluids.

Centrifuges are used to process unweighted and weighted, water-based and oil-based drilling fluids (muds). The NOV® Brandt® HS-2172 series

Other Supplier:

Alfa Laval’s products and solutions are used in areas of vital importance for humanity such as food and water supply, energy production and economizing and environmental protection.

American Filtration & Separations Society AFS is the premier organization in North America dedicated to R&D, problem solutions and technology transfer in filtration and separation for the benefit of industrial processes, individual health and a clean environment. Continue reading →

Once a client asked some questions about drilling fluid systems, and I think it is very representative, so I just post here, for all your reference.

*How is the fluid transferred between compartments?

If you still confused by this, contact with our sales, maybe you need a more detailed drawing, or more contact.

*Is the coupling between the tanks rigid or flexible, what is the diameter?

Definitely yes

*Are the shakers, desilters, etc.. designed to be removed quickly for transport?  Are they fitted to one large skid or individual units?

It depends sometimes, shakers, desilters are conected with the mount with screws. So if you need, it is easy.

*Can the mounting of the shakers, desilters etc.. be reversed if we require to place the tanks on the opposite side of the machine?

If you need, contact with our engineer firstly.

*For cleaning purposes, how are the tanks accessed, are the walkways removable?

Yes, the walkways is removable.

*I would prefer the hopper at ground level as all the fluids can be next to the hopper and it is easier to dispose the bags into a skip. Also in adverse weather conditions, it is easier to mix additives beneath a canopy away from the wind and rain which is something I’d like fitted.

Thank you very much for your information, and we can design the jet mud mixer as you required.

*Can you please provide a quote and specification for a degasser?

That is cool, we not only supply four phase soldis control equipments, and we also supply vacuum degasser, poor boy degasser, centrifugal pump, and shaker screens.

*What is the weight of the tanks with the components removed for transport?

You can find it in the quotation.

*The volume of each compartment?

It is different from systems one another.

Drilling fluid equipment contains solids control equipments, mud moniter equipment, mud pump, jet mud mixing euipments and so on. GN Solids Control is a professional company at solids control equipments, (sometimes, drilling fluid equipment is equil to solids control equipments, as countries and persons are different), and got the API certificated in Nov, 2010.

GN solids control is customer concentrited, so usually, if the customer want drilling fluid equipments, firstly they asked GN about solids control equipments, then to find the other products like mud pump, in a economic and effective way, they got the recommendation of GN to find the outstanding companies as GN.

As we all know, drilling fluid is very important in the drilling works, no matter water based or oil based or others. While GN Solids Control only produce equipments for mud rotary drilling.

Solids Control Equipments Continue reading →

GN-MRS500 mud recycling system is a modulized system for HDD, and it is very popular all over the world.

This GN-MRS500 system contains:
1 GNZS 83-3 shale shaker;
1 GNZJ 83-3 mud cleaner;
2 SB5x4-14 centrifugal pump;
1 JBQ7.5 mud agitator;
1 SLH150-35 jet mud mixer; Continue reading →

Drilling mud is a important part for the drilling work to maintain the wellbore; Cool, lubricate and support the bit and drilling assembly and so on, most important, remove cuttings from well. Then here it problem, to reuse the drilling mud. Then it is the time for mud circulating system to come here.

In some applications, the mud circulating system is equal to solids control system, but the full mud circulating system in drilling work, contains more. Except for the four phase, five equipments as we know, shale shaker, vacuum degasser, desander and desilter (or mud cleaner), decanter centrifuge. There also include mud pump, electric generator, control panel, chemical reagent treatment unit, and so on.

As you can see in the picture. It is used for the movable drilling rig, and also this system is movable. Usuall solids control equipments can not prevent the loss of the drilling mud. So we also must add chemic to the tanks to add fresh drilling fluids. Other parts are also very important, centrifugal pump, mud agitator, mud gun.

The main part in the picture: Continue reading →

GN Solids Control can supply kinds of centrifuge used in slurry treatment of drilling, coring, tunneling, dredgging, mining and so on. It can be used in a complete system or separetely. One popular one is variable frequency drive centrifuge GLW355x1250N.

Specifics of GLW355x1250N

Drum diameter:     355mm
Rotary Speed:     0~3200r/min
Separation factor:  ≤2035
Separation point:  ≥2μm
Main power:        37kw-4p
Assistant power:   7.5kw-4p
Max capacity:     ≤40m³/h

Control Panel of VFD Centrifuge

The motors and the feed pump are controled by the control panel. Also the speed of the motor also bowl and scrool are also controled by the panel.

Two Motor Machanical Scrool Drive System Continue reading →