Mud Solids Control Equipment

As refer to mud gas separator or poor boy degasser, you may heard of “Flare stack”.

A flare stack (alternatively known as gas flare ) is a vertical vent pipe used in oil and gas drilling sites. The pipe diameter of flare stack is usually 8” for GN ZYQ series poor boy degasser.

The function of flare stacks

They are used to eliminate waste gas invaded in the drilling mud, otherwise it will lead to “blowout”, “kick”. They also act as safety systems for non-waste gas and is released via pressure relief valve when needed to ease the strain on equipment. They protect gas processing equipments from being over pressured. Also in case of an emergency situation, the flare system helps burn out the total reserve gas.

How flare stacks work

Whenever the poor boy degasser are over-pressured, the pressure relief valves automatically releases gases which are routed through large piping runs called flare headers to the flare stacks. The released gases are burned as they exit the flare stacks. The size and brightness of the resulting flame depends upon the flammable material’s flow rate in terms of joules per hour.

In order to keep the flare system functional, a small amount of gas is continuously burned, like a pilot light, so that the system is always ready for its primary purpose as an over-pressure safety system. The continuous gas source also helps diluted mixtures achieve complete combustion. Enclosed ground flares are engineered to eliminate smoke, and contain the flame within the stack.

Continue reading “Flare stack/gas flare”

The mud gas separator is used in a ‘kick’ situation to separate large volumes of free gas invaded in the drilling fluid.

 Function of Mud gas separator

 Mud gas separator also called poor boy degasser, Gus buster, which is designed to provide effective separation of the drilling mud and invaded gas from the well by venting the gas and returning the mud to the mud pits. Small amounts of entrained gas can then be handles by a

vacuum-type degasser located in the mud pits. The mud/gas separator controls gas cutting during kick situations, during drilling with significant drilled gas in the mud returns, or when trip gas is circulated up.

 Mud leg height is an important parameter for the mud gas separator, you need to clear it during evaluation.

 What is Mud leg?

The mud leg in the separator is controlled by adjusting the fluid level in the mud tank or by moving the separat6or up or down within the tank. Mud tank height can restrict the maximum mud leg obtainable for open-bottom mud gas separator.

 Mud leg is an important part for mud gas separator, it is also called Fluid level. Fluids level is maintained in a float mud gas separator by a float/valve configuration. The float opens and closed a valve on the mud return line to maintain the mud leg level. Valves can be operated by manual linkage system connected from the float to the valve, or the valve can be air-operated with the rig air. Mud leg height can be controlled by adjusting the float assembly.

 There are some inherent problems in the use of float-type mud gas separators. The manual linkage separator has experienced problems with linkage failure resulting in improper opening or closing of the mud return line valve. Air-operated valves fail to function if rig air is lost, resulting in no control of fluid level within the separator. Mud-return-line valves are prone to plug with solids, preventing mud flow back to the mud pits.

 Gas Flow calculation is another important issue to evaluate the mud gas separator.  

Usually we need to calculate the following items.

Continue reading “How to evaluate a Mud gas separator”

GN produce centrifugal pump for VACUFLO vacuum degasser, usually it is installed on the skid of the mud tank,together with the feeding pump of desander&desilter. The flow rate various from 20m3/h ~400m3/h.

Firstly, we should introduceVACUFLO vacuum degasser briefly.

 Function of vacuum degasserAn efficient degasser is essential to safe and productive drilling operations. Gas present in the well bore can reduce the hydrostatic head in the well bore – with the potential for even greater gas influx and possible blow-out.

How do vacuum degasser work?

Vacuum degassers work by creating lower pressure inside a vessel so air or other gaseous impurities can be removed from a substance, such as water or even molten steel. The air is siphoned from the vessel after pressure is lowered enough to force the gas from the substance.

Features of Derrick VACUFLO vacuum degasser

Derrick’s Design

More Leaf Surface Area

Corrugated Fiberglass Leaves

Gas Extraction

Large Access Door

Compared with Derrick VACUFLO vacuum degasser, GN vacuum degasser has the following features.

1 Smaller area required

Because of different design, GN Vacuum dgasser do not a feeding pump, it is a self priming one, so you save a lot of area to install the feeding pump of vacuum degasser.GN vacuum degasser have a compact structure which can be installed on the tank easily.

Continue reading “Centrifugal pump for VACUFLO vacuum degasser”

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

 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 “Q&A of Slime Dewatering System”

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.

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

Continue reading “Equipments of Slurry Handling System”

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 “Equipments for Slurry Treatment Plant”

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.

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 “Top Decanter Centrifuge Manufacturers in the World”

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 “Drilling Fluid Equipment”