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August 18, 2021November 29, 2021

The key points of the design of mud agitator

The mud agitator has a sturdy structure and a compact size. The aspect ratio of the mud agitator is approximately 1:1, so the center of gravity is low and the stability is good. When the impeller encounters an instantaneous impact load, it is safer.

Because the mud agitator is equipped with a simple and high-strength unipolar worm gear reducer, it runs smoothly and evenly. The ability of the worm gear to withstand shock and vibration is more than 50% higher than that of the helical gear two-stage reduction gear of the corresponding specification. When the speed ratio reaches 60:1 and 80:1, the efficiency of the turbine transmission is lower. However, the reduction ratio of the new worm gear transmission is 20:1. Practice has proved that it has extremely high efficiency and shows the advantages that other types of gear transmissions do not have.

In order to make the mud in the mud tank agitate uniformly, according to the liquid flow spectrum, it is proved that when the blade of evil theory is inclined at 60 degrees, the axial and radial flow are equal. When the liquid touches the leaf, it is forced to move down to the bottom of the pot, and then back up along the tank wall. This movement continuously mixes the mud at the top and bottom so that the mud in each part of the tank has the same concentration. When the mud is pumped into the well, it helps to eliminate operational difficulties caused by uneven light and heavy mud.

However, most mud agitators are recommended to install impeller blades with a 60 degree inclination angle. The user’s experience proves that this kind of agitator can mix very uniformly within its applicable range.

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
Email: sales2@adkosun.com
WhatsApp/Wechat:+86 18792396268
Contact person: Lily Wang
Online consulting:
http://www.kosun.com
http://www.kosuneco.com

July 19, 2021July 19, 2021

Cyclones can be divided into three types in Solids Control Equipment

According to different diameters, cyclones can be divided into three types: desander, desilter and micro cyclone:

1. Desander: The cyclone with a diameter of 150~300mm is called a desander. Its ability to process drilling fluid is generally not less than 20~120mm³/h when the input pressure is 0.2Mpa. The desander in the normal state can remove about 95% of the drill cuttings larger than 74 μm and 50% of the drill cuttings larger than 44 μm. When selecting a desander, its allowable processing capacity should be 1.25 times the maximum displacement during drilling.

2. Desilter: a cyclone with a diameter of 100~150mm is called a desilter. When the input pressure is 0.25Mpa, its processing capacity is not less than 10~15m³/h. The desander under normal working condition can remove 95% of the drill cuttings larger than 44 microns and 50% of the drill cuttings larger than 15 microns. The permitted processing capacity of the desilter should be 1.25 to 1.5 times the maximum displacement during drilling.

3. Micro cyclone: a cyclone with a diameter of 50mm is called a micro cyclone. Its processing capacity is not less than 5m3/h when the input pressure is 0.25Mpa. The separated particles range from 7 to 25 microns. Mainly used for non-aggravated drilling fluids to remove ultrafine particles.

Cyclone is the key to solids control equipment mud cleaner and desander. Understanding the classification of cyclones can make a better choice of mud treatment equipment.

June 20, 2021June 20, 2021

KOSUN Pile Foundation Slurry Separation System Main Equipment

The main advantages of Pile Foundation Slurry Separation System:

1. Purify the mud and effectively control the performance index of the mud.

2. Realize mud recycling and save slurry-making materials.

3. The equipment effectively separates the soil and slag and improves the efficiency of hole making.

4. Closed loop purification of mud.

5. The double-layer screen is adopted, and the purification effect is nearly 50% or more than that of the single-layer screen.

6. Convenient, simple and reliable operation.

KOSUN Pile Foundation Slurry Separation System uses a slurry pump to pump the sludge from the mud pool into the equipment, and the equipment circulates the sludge internally: first put the sludge on the 2-layer Shale shaker, and then pass it through the cyclone desander for further purification treatment, after treatment to separate the sand and soil in the sludge, the filtered muddy water again enters the sand pump into the de-sanding cyclone for secondary screening and filtration, the waste residue continues, and the filtered water will be recycled.

There are many equipment for mechanical treatment and separation, but the most commonly used one is the decanter centrifuge. The decanter centrifuge mainly uses the principle of centrifugal separation. The separated mud cake is packaged without dripping, and it is convenient to transport and reprint. It can be used for greening and backfilling. It can be used as a material for making bricks for effective secondary use. The function of the Shale shaker is to pre-treat the muddy water and remove particles such as clumps and lumps.

May 24, 2021December 21, 2021

The composition of trenchless mud recovery system

The standard trenchless mud recovery system consists of mud recovery equipment, mud mixing equipment and mud collection tanks. Unlike the mud recovery device in the oil and gas drilling industry, trenchless drilling first discharges the mud back to the mud pit on the ground, and then uses a vertically installed submerged mud pump to transport the mud to the mud recovery system. Most drilling rigs will use a three-stage Purification system, shale shaker, sand removal, mud removal, and gradual removal of rock debris and solid waste. If there is a higher separation requirement, we will add a centrifuge to the system as a fourth-level processing equipment that can control the solid particle diameter of the slurry to 5-10 microns.

KOSUN has extensive field experience and a strong R&D and production team in the field of solids control systems such as trenchless mud recovery system. According to our country’s current municipal non-excavation technology and mud application status, combined with foreign advanced technology, the mud treatment equipment is optimized to ensure the completion of mud purification and recovery treatment while maximizing the protection of the original mud performance, saving construction costs, improving construction progress, and reducing Construction resistance and risk to achieve the best treatment effect.

March 28, 2021March 28, 2021

Shale shaker, Rotary separator and Centrifuge in shield slurry separation system

In the construction process of the shield machine, the separation of slurry is an indispensable process. The separation efficiency also affects the tunneling efficiency of the shield machine. General slurry separation equipment includes shale shaker, rotary separators, centrifuges, filter presses, etc.

Centrifuge: The commonly used centrifuge is composed of two coaxial parts rotating around a static chamber. It is very effective for purifying bentonite mud, only keeping 6μm particles in the mud. Centrifuge is one of the very important solids control equipment.

Shale shaker: For the separation of materials of different particle sizes and gradations, the mud Shale shaker is the most basic solids control equipment. The Shale shaker is composed of one or more sieve plates, and the sieve hole of each sieve plate is gradually reduced. Shale shaker are generally used for sieving coarse materials, with holes as small as 60μm.

Rotary separator: The rotary separator is composed of a fixed cone. Its feed inlet is close to its shell. There is an upper overflow outlet at the top of the cone and a lower overflow outlet at the bottom. Larger speed is pumped into the rotating cone, causing it to produce a vortex, and the slurry enters the spiral in the cone. Large-sized and heavy-weight particles are separated by centrifugation at a certain speed, concentrated on the inner wall of the cone, and finally discharged through the bottom outlet; fine particles, retained in the muddy water, are discharged from the upper overflow through the spiral body. Rotary separators are widely used in surface separation stations. They can separate sand and sludge from waste mud water, and can even effectively separate 10μm particles.

February 23, 2021February 23, 2021

Drilling Fluid Shale Shaker Outstanding Performance in Solids Control Equipment

The outstanding performance of the drilling fluid Shale Shaker in the solids control equipment is far more than these. You must operate correctly according to the instructions so that its performance can be fully utilized.

1. Choose a screen with a large screening area, large processing capacity and good processing effect;

2. The whole screen box is heat treated with heavy anti-corrosion coating on the surface to ensure the long service life of the Shale Shaker;

3. The electrical control cabinet with thermal relay overload and phase loss protection is adopted to ensure the safety of operators;

4. Adopt full-bonded ditch-edge rigid screens, which are fixed by the plate type, which makes the screen replacement more convenient and quick, and can replace a variety of Shale Shaker;

5. Reasonably design the height of the cofferdam of the Shale Shaker mud logging tank to buffer and even flow the mud, reduce the direct impact on the screen, and effectively extend the service life of the screen;

6. It adopts the Italian joint venture Ouli vibration motor, which has the advantages of high vibration intensity, large screening area, adjustable screen box angle, low noise, excellent performance and high efficiency.

KOSUN draws on the advanced design experience and manufacturing technology of Drilling Fluid Shale Shaker at home and abroad to optimize the design structure of the Shale Shaker to produce a Shale Shaker that can quickly remove harmful solids in the mud and ensure efficient recovery of drilling fluid. The drilling fluid Shale Shaker is the primary processing equipment in the solids control system. It is used to separate relatively large drilling cuttings in the mud and plays an important role in maintaining the performance of the drilling fluid. In order to ensure the production of high-quality drilling fluid Shale Shaker with high mud screening accuracy, low energy consumption and no dust pollution, every quality control in the production process is strictly controlled.

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
Email: sales2@adkosun.com
Wechat:+86 18792396268
Contact person: Lily Wang
Online consulting:
http://www.kosun.com
http://www.kosuneco.com

January 31, 2021November 29, 2021

Advantages of KOSUN Mud Agitator and Decanter Centrifuge

Advantages of KOSUN Mud Agitator:

The mud agitator has the advantages of compact structure, small floor space, large transmission torque, stable operation and reliable operation.

The arc cylindrical worm reducer is adopted, the shaft section is a circular cylindrical worm, and the tooth profile of the worm wheel is a circle conjugated to the worm. Therefore, the convex and concave meshing performance is reliable and the structure is compact;

2. Combination of reducer and explosion-proof motor, it is easy to maintain and suitable for use under harsh working conditions in the field;

3. The mud agitator is strong, has a wide range, and reduces the starting resistance torque;

4. The motor is placed horizontally for easy installation, adjustment and replacement;

5. Various gearbox and blade combinations can meet most requirements;

6. The mud agitator has high efficiency in deep and large containers;

7. It can be designed to produce suitable shear force according to needs;

8. Expose more fluids to contact with the atmosphere, and the mud agitator helps cool the drilling fluid.

Advantages of KOSUN Decanter Centrifuge:

1. Strong craftsmanship, the device can be adjusted automatically at any time according to the material condition during the operation process to achieve the processing effect.

2. The noise is small, and the structure design adopts the double-layer plus sound insulation layer design. The low noise during operation has little impact on the working site environment.

3. The degree of automation is high. During the operation of the decanter centrifuge, no matter it is feeding, separating or unloading, every link is continuously and automatically carried out under high-speed operation, so the user is very convenient and simple in operation .

4. The processing capacity is very large, because the structure has been improved, it can treat more materials.

5. The decanter centrifuge will not have too much impact on the working environment on site, because the equipment is carried out under completely enclosed conditions during the entire operation process, so there is no need to worry about pollution at the operation site. Completed clean production.

6. The working function of the equipment is very stable, so it can maintain high working efficiency.

7. The safety is good, and the protection device is set, so the decanter centrifuge has higher safety functions.

December 16, 2020December 16, 2020

KOSUN batches of shale shakers and desanders were sent to Kazakhstan for drilling projects

Recently, batches of shale shakers and desanders equipment produced by KOSUN were sent to Kazakhstan to be used in a well-known drilling engineering service company’s oil exploration project in Kazakhstan. It is mainly used to remove harmful Solid Phase drilling fluids during drilling. The provision of this equipment is the tenth year that the company has continued to use KOSUN products in foreign projects. The continuous repurchase by customers is the biggest recognition of KOSUN products!

As the primary solids control equipment in the drilling fluid purification system, the shale shaker is mainly used to separate the large particles of drill cuttings contained in the drilling fluid. Desander is a secondary solids control equipment for processing drilling mud. It can separate solid particles between 45 and 74 microns. According to the different processing capacity , 1, 2 or 3 sets of 10″ or 12″ can be flexibly selected. The desander is mainly composed of shale shaker, cyclone, a branch manifold, and an electric control system, and is used to separate solid particles that cannot be separated by the shale shaker.

KOSUN is a professional manufacturer of mud solids control equipment and drilling waste treatment systems integrating product development, production and sales. The products are widely used in oil and natural gas drilling, coalbed methane drilling, geothermal drilling, trenchless horizontal directional crossing, pipe jacking, shield tunneling, piling and other projects, tailings treatment, river dredging and other fields. If you want more information, please contact us!

October 28, 2020November 29, 2021

Purpose and Classification of mud agitator

Mud agitator is one of the solid control equipment of drilling fluid tank, which is mainly used for mixing drilling fluid, preventing solid phase particles of drilling fluid from deposition in the tank circulation system, and making the circulating drilling fluid have stable performance and even mixing. The most commonly used forms of mud agitator in solid control equipment are as follows:

Mud agitator with gear transmission structure: the advantages are high transmission efficiency, but the disadvantages are large volume and inconvenient maintenance. Gear drive is also divided into direct drive and belt drive. The reducer adopts single-stage worm reducer with small structure size, light weight, stable transmission, low noise and large transmission power.

Worm gear transmission structure mud agitator: the current is still worm gear worm transmission. Worm gear and worm drive. Worm gear and worm drive is widely used in mud agitator because of its simple structure, high speed ratio and high reliability. The mud agitators imported from the United States are almost all worm gear direct drive. Worm gear and worm belt transmission structure, although its large volume, but has the characteristics of soft transmission, to protect the motor overload is very good.

August 28, 2020August 28, 2020

Drilling mud desander and desilter

Drilling mud Desander and desilter are solids control equipment with a set of hydrocyclones that separate sand and silt from the drilling mud used on drilling rigs. KOSUN Desander is used as the 2nd stage of solids control for drilling fluids, which makes separations between 45 and 75 μm. KOSUN Desilter is used as the 3rd stage of solids control for drilling mud, which makes separations between 15 and 45 μm.

There are some main difference between Drilling mud desander and desilter as following:

1.They are in the different solids control stage. Desander is the second stage solids control equipment, desilter is in the thrid stage;

2.They have different separation size. Desander make separations between 45 and 74 μm, desilter separate solids between 15 and 45 μm;

3.They have different capacity. Desander is 113 m³/h, desilter is 11 m³/h;

4.They have different hydrocyclone size. Desander uses 10″ and 12″ hydrocyclones, desilter uses 4″ hydrocyclone.

Desander is installed on top of the mud tank following shale shaker and vacuum degasser, but before the desilter. Desilter is installed on top of the mud tank following Desander. They also can be installed completely: in this case, they are installed on one deck shaker and called mud cleaner or mud conditioner. Desander removes the abrasive solids from drilling mud which cannot be removed by shale shakers.

KOSUN is professional manufacturer for complete sets of drilling mud recycle system. The conventional equipment like shale shaker, mud cleaner, desander and desilter, vacuum degasser, decanter centrifuge, mud agitator, mud gun, centrifugal pump, screw pump, etc.