Industry news Archives - Drilling Mud Decanter Centrifuge,Oilfield decanter centrifuge,industrial decanter centrifuge for sale

April 23, 2023April 23, 2023

Drilling waste treatment effect and treatment steps

The effects of drilling waste treatment mainly include the following three aspects:

1, Primary treatment:

The solid phase contains 6%-10% water (oil-based or water-based), the ph value of the separated water is 6-9, and the COD is generally around 1000mg/L.

2, Secondary treatment:

The solid phase is added with special strains to separate the crude oil and organic matter, and further reduce the COD of the primary separated water. The COD value is generally controlled at 200-400mg/L.

3, Tertiary treatment:

Advanced treatment of sewage, meeting national standard level two or above discharge standard (GB8978-1996, COD<120mg/L) or local standard (COD<60mg/L)

Specific treatment steps for Drilling waste treatment:

According to the drilling site, the application of supporting five-stage solid control equipment (mud linear shale shaker, vacuum degasser, desander, desilter, drilling fluid centrifuge) can maximize the efficiency of solid control equipment, which can avoid Due to equipment failure or improper operation, the mud can be recovered to the maximum extent, which improves the recycling rate of the mud, thereby reducing the amount of mud attached to the cuttings, and truly reducing the waste at the source. minimize.

Tags: drilling waste treatment, five-stage solid control equipment, mud linear shale shaker, vacuum degasser, desander, desilter, drilling fluid centrifuge.

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
Email: sales2@adkosun.com
WhatsApp/Wechat:+86 18792396268
Contact person: Lily Wang
Online consulting:
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October 30, 2022October 30, 2022

Application of shield muck treatment system produced by KOSUN in subway project

What are the manufacturers of shield muck treatment system in China?

Shield subway tunnel construction process, the waste residue produced by a large amount of waste residue in brings to the urban environment pollution threat, in the city subway tunnel soil balance shield construction, shield tunneling process, in order to ensure the advance smoothly, through the soil of shield machine, add water bentonite, foaming agent, polymer additives, mixing and makes the waste residue have better flow plasticity, achieve balance Graffiti has maintained balance effect.

Due to the characteristics of high mud content and high water content, the slag produced by shield tunneling will inevitably spill and pollute the environment in the process of transportation. In order to timely clean up the soil, a large amount of clean water needs to be consumed when shipping out, and the construction will be blocked because the muck cannot be shipped out in time.

Recently, the shield dregs treatment system produced by KOSUN has been successfully put into operation in Guangzhou Metro project of China and achieved results. The belt conveyor equipment is used to transport the freshly dug dregs from the depth of the tunnel to the feed hopper for separating the ground dregs, and finally separates the coarse and fine sand, realizing the benefit of resource utilization.

August 30, 2022August 30, 2022

KOSUN mud waste treatment system meets the environmental protection requirements

Features of KOSUN mud waste treatment system:

The system equipment is highly integrated, meeting the needs of centralized processing while drilling or after drilling.
Strong mobility, miniaturized assembly, easy transportation, convenient operation and high processing efficiency.
The daily processing capacity can reach 300m³, the water content of the solid phase after treatment is 15%~17%, and the oil content of the solid phase is ≤5%. Effective separation can recover a large amount of drilling fluid, which can be reused in the mud circulation system.
Integrated Programmable Logic Controller (PLC) with automatic alarm indicator to monitor temperature, torque, oil quantity and running time, easy to operate, safe and reliable.
The treatment conditions are mild, the treatment cost is low, the application is extensive, and it is economical and practical.
It has strong adaptability and can treatment drilling waste under different types of mud systems.

With the development of high-temperature and high-pressure deep wells, highly deviated directional wells, horizontal wells and various complex formation drilling technologies, oil-based drilling fluids are used in drilling complex wells, especially in high-temperature drilling due to their excellent inhibition and temperature resistance. The advantage is more obvious in deep wells and water-sensitive formations. There are more and more waste oil-based mud from drilling. It is a complex multiphase system containing mineral oil, phenolic compounds and heavy metals, and its leachate is highly toxic. Oilfield drilling production produces a large amount of waste mud every day. The direct discharge of drilling waste mud will affect the nutritional environment and quality of crop growth. Long-term accumulation will cause serious damage to surface vegetation, pollute soil and water sources, and endanger human survival. Widely classified as hazardous waste.

KOSUN mud waste treatment system can recycle drilling fluid waste, reduce treatment costs, recycle useful mud or water, realize resource reuse, avoid environmental pollution by waste, and meet local government regulations and requirements. Environmental protection discharge requirements of waste to protect the environment.

May 22, 2022May 22, 2022

KOSUN Construction Mud Solid-liquid Separation Equipment

Linear Dewatering Shale Shaker– Construction Mud Solid-liquid Separation Equipment
Linear Dewatering Shale Shaker is specially designed to separate larger and coarser solid particles. The construction mud enters the shale shaker through the feeding funnel, and separates large-diameter solids such as large stones. The screen on this shale shaker has a longer lifespan than traditional woven screens.
Double-layer mud Shale Shaker
After being screened by the Linear Dewatering Shale Shaker, the liquid phase enters the Double-layer mud Shale Shaker again. The Double-layer mud Shale Shaker is a two-stage separation. It first enters the bottom layer of the Double-layer mud Shale Shaker. The mesh number of the bottom layer is smaller, and the coarse particles are further screened. The mesh number of the upper screen is higher, and the liquid phase passing through the bottom screen enters the upper screen again, and the effect is better.
Mud cleaner
The liquid phase screened by the Double-layer mud Shale Shaker is pumped to the mud cleaner. The mud cleaner consists of two 10-inch desander cyclones and 12 4-inch desander cyclones plus a shale shaker. The liquid phase first passes through the desander cyclone, and then enters the desliming cyclone. After separation by the mud cleaner, the material conditions for entering the centrifuge are reached.
Decanter centrifuge
The separation capacity of the decanter centrifuge is more refined. In order to ensure a good use effect, the requirements for the materials entering the centrifuge are relatively strict, so the front coarse screen, fine screen and cleaner are processed. The centrifuge can separate solid particles above 2-5um. After the centrifuge treatment, it meets the customer’s requirements.
Flocculation dosing system
The flocculation dosing system is the icing on the cake. When the level required by the customer is higher, the flocculation dosing system can make the centrifuge more effective.

If you have any inquiries about equipment needs or solutions in this regard, you are welcome to call us.

March 31, 2022March 31, 2022

Sand washing sludge dewatering solid-liquid separation equipment

Sand washing sludge dewatering equipment mainly refers to solid-liquid separation equipment, including: centrifuge, belt filter press, plate and frame filter press, sludge drying integrated machine, etc. Sand washing sludge dewatering equipment has a wide range of applicability, such as: soil sludge treatment, oil field drilling mud treatment, mining sludge wastewater treatment, sand washing wastewater treatment in sand making yard, piling mud treatment, river dredging treatment, mud wall solidification, large-diameter pile foundation, pipe jacking construction, seepage prevention wall engineering, trenchless engineering and other fields.

Sand washing sludge dewatering equipment is mainly for the separation of some fine gravel, sludge and water. The separated water can be recycled, and the sludge can be fully utilized for backfilling, brick burning, paving, etc., in order to meet the requirements of environmental protection and energy saving.

Due to the complex and diverse mining processes in sand factories, the turbid water quality will reduce productivity and increase costs. The function of the sand washing sludge dewatering equipment is to reduce the amount of sludge after the sediment is separated, and treat the sewage sludge to a zero discharge state as much as possible.

March 30, 2022March 30, 2022

Farm sludge dewatering equipment

In the sludge dewatering of farms, sludge dewatering equipment is the core and important equipment. The principle of sludge dewatering equipment in farms is the same as that of sludge dewatering equipment in other industries. There are many sludge dewatering equipment in farms. At present, domestic sludge treatment equipment includes centrifuges, plate and frame filter presses, chamber filter presses, diaphragm filter presses, and high-pressure sludge dryers. Different sludge treatment equipment the moisture content after dehydration is different.

The characteristics of farm pollution are high-concentration organic sewage sludge, high content of suspended solids and ammonia nitrogen, and high content of organic matter and microorganisms. The sewage sludge of the breeding site has the characteristics of three highs. The organic matter concentration COD is as high as 3000-12000mg/1, the ammonia nitrogen content is as high as 800-2200mg/1, the suspended matter is dozens of times more than SS, the color is deep, and it contains a lot of bacteria, organic phosphorus, Heavy metals, residual chemicals and other hazardous substances.

It has been proved by experiments that the effect of using the horizontal screw decanting centrifuge in the sludge dewatering process of the farm is better than that of other sludge dewatering equipment. The centrifuge adopts the principle of centrifugation. After being treated by the centrifuge, the water content of the sludge cake is low, the equipment covers a small area, and the capital construction cost is low, the device has the advantages of compact structure and so on.

December 29, 2021December 29, 2021

The key to the production of aviation kerosene storage tanks

How to improve the reliability of aviation kerosene storage tanks? Aviation kerosene storage tanks are important fuel supply equipment for aviation oil companies. The importance of the manufacturing and production of aviation kerosene storage tanks directly determines the reliability of the transportation of aviation kerosene and the high-end quality of aviation kerosene.

The reliability of the use of aviation kerosene storage tanks requires strict control over the entire process of drawing design and manufacturing of aviation kerosene storage tanks. In view of the difficulties in the production and production of kerosene tanks, it is necessary to optimize the treatment plan and the specific operations of on-site production.

To improve the reliability of aviation kerosene storage tanks, attention should be paid to the following three difficult issues:

1) Difficulties in the production of the conical bottom of aviation kerosene storage tanks: There are certain difficulties in the production of the conical bottom of aviation kerosene storage tanks. The design and production of the slope of the tank bottom is a difficult point. To achieve a satisfactory degree of coordination, detailed analysis needs to be done in advance, the designed slope must be adapted to meet the specific use standards, and the bottom of the kerosene storage tank must have good integrity and the bottom plate can be coordinated with the tank body. Unite. The welding treatment of the conical bottom of the aviation kerosene storage tank is also very important. The number of welds should be reduced to a minimum, and the problem of welding deformation should be controlled.

2) Difficulties in installing the upper and lower end walls of aviation kerosene storage tanks: The difficulty in installing the upper and lower end walls of aviation kerosene storage tanks lies in the corresponding stress control, which requires strict control from the error aspect to avoid tank deformation caused by corresponding stress concentration. . The verticality, perimeter, and levelness of the upper and lower end wall panels of aviation kerosene storage tanks also need to be strictly controlled and corrected to ensure better forming integrity of the kerosene storage tank.

3) Difficulties in welding requirements for aviation kerosene storage tanks: In the manufacturing process of aviation kerosene storage tanks, the welding requirements for kerosene storage tanks are very high. The welding operation of kerosene storage tanks is actually closely related and mutually influencing with the shape requirements of aviation kerosene storage tanks. During the welding process, it is necessary to control weld defects caused by stress concentration. For the problem of welding seam defects, it is necessary to operate from the main aspect of welding scientific and reasonable design.

The above has explained the key points of the production and production of aviation kerosene tanks through three difficult aspects. To provide high-quality aviation kerosene receiving and dispatching operations, we must first handle the reasonable layout during the design stage of the aviation kerosene storage tank, and rationally arrange the steel plates and welds. At the location point, during the production process, the operation must be strictly abided by the regulations. After such a serious and strict production process, the reliability of the aviation kerosene storage tank can be improved.

December 22, 2021December 22, 2021

Five schemes for remediation of oilfield soil pollution

The sources of oilfield soil pollution are mainly from the invasion of drilling mud during oil and gas exploration, extraction, transportation and storage. If the contaminated drilling mud cannot be disposed of in a timely, reasonable and effective manner, serious pollution of the soil around the oil field will occur. As the main source of pollution, drilling mud contains pollutants such as petroleum, heavy metals, organic chemicals, chloride ions and other pollutants that enter the soil without treatment, which will not only cause great harm to the soil, but also to the environment. The content of trace harmful elements in the soil exceeds the background value, and the content is too high due to excessive deposition, so it is called “soil heavy gold pollution”. Five schemes for remediation of oilfield soil pollution:

1) Oil sludge thermal desorption method oilfield soil pollution remediation plan:

The sludge thermal desorption method to remediate oilfield soil pollution is based on an integrated solution of solid-liquid separation. Through sorting equipment, the stones, weeds, tree roots and other sundries in the contaminated soil are separated; the proportions of oil and water are different. Physical properties: water, oil, and mud sand are fully stratified through water temperature and chemical stirring. The oil floats on the top layer according to the specific gravity. The water layer is in the middle, and the mud sand settles at the bottom layer. Finally, it passes through three-phase separation equipment or oil-water separation equipment. And mud-water separation equipment to achieve the purpose of three-phase separation of water, oil and mud.

2) Bio-method oilfield soil pollution remediation plan:

Bio-method oilfield soil pollution remediation program: Bioremediation is a method that uses biological growth and metabolism to degrade and transform organic matter. It has the characteristics of safety, reliability, and low repair costs. This soil pollution remediation plan includes: key processes, remediation preparations, supporting equipment and other core technologies.

3) Physical method of oilfield soil pollution remediation plan:

The physical method of oilfield soil pollution remediation program refers to pollution control technologies such as the soil method, incineration method, physical separation method, solution leaching method, solidification stabilization method, thermal desorption method and electrodynamic method based on physical methods.

4) United Technologies Oilfield Soil Pollution Remediation Plan:

The composition characteristics of oil and secondary metabolism determine the difficulty and complexity of oilfield soil pollution remediation. Therefore, a single technology cannot solve the pollution problem well, and it is necessary to consider the combined use of various treatment technologies.

5) Remediation plan for soil pollution of oilfield by leaching method:

The leaching method for remediation of oilfield soil pollution is an in-situ remediation method, which is very similar and close to the technical principles of “water flooding” and “polymer flooding”. The water from the injection well flows into the soil contaminated area of the oilfield, so that the oil contaminants in the oilfield soil are flushed into the area that can be pumped out by the groundwater well under the accumulation and driving of the water. The extracted petroleum-contaminated groundwater and flushing water are treated by surface facilities, and the rinsing water is recycled and reused. After the treated wastewater meets environmental protection requirements, it is discharged. When choosing an oilfield soil pollution remediation plan, different soil pollution remediation plans should also be selected for the oilfield soil contaminated by light oil and heavy oil.

November 27, 2021November 27, 2021

Treatment Effect of KOSUN Oily Sludge Treatment Solution

For the floor sludge, KOSUN adopts the front-end room temperature water washing process for reduction treatment, and the back-end pyrolysis carbonization harmless treatment process. Equipment optimization has been carried out for the process of furnace wall glueing, flue gas treatment, and non-condensable gas reuse.

Using KOSUN’s oily sludge treatment and recycling technology, the results after oily sludge treatment:

1. The oil content of the residue is less than 0.3%, which meets the national soil use standard, and meets the local standard of Shaanxi Province “Control Limits on the Disposal and Utilization of Oily Sludge” (DB61/T 1025-2016), and bricks are made to achieve comprehensive utilization;

2. The water is treated by indigenous microorganisms, and multi-stage filtration reaches the standards for reuse, brick making and irrigation;

3. The exhaust gas is treated by bag dust removal and spray tower treatment to reach the second level of the “Comprehensive Emission Standard of Air Pollutants” (GB16297-1996);

4. Collect VOCs in the whole process and conduct reasonable treatment; truly realize the harmless disposal and resource utilization of oil sludge.

The complete set of Oily Sludge Treatment equipment has the following advantages:

1. Through the front-end normal temperature water washing process, the crude oil recovery rate is above 95%;

2. Strong applicability to raw materials, and can directly process tons of bags, gloves, color striped cloth and other sundries;

3. There is no coking in the pyrolysis process, and the unique segmented heating technology makes the material heated evenly and the heat conduction efficiency is high;

4. The produced non-condensable gas can be used as fuel for the combustion engine, which saves fuel costs and achieves flue gas emission standards;

5. The treatment standard can reach the “Control Standards for Pollutants in Agricultural Sludge” (GB4284-2018) Grade B below 3‰.

September 29, 2021September 29, 2021

Application of Mud Separation Equipment for Building Piling

Construction Piling Mud Separation Equipment is suitable for pile foundation engineering (including rotary drilling, percussion drilling, etc.) using mud wall protection and circulating drilling technology, anti-seepage wall engineering (ground wall, double-wheel milling), and mud-water balance shield construction Mud purification and recovery of muddy water pipe jacking construction. Which can greatly improve the reuse rate of waste mud, avoid the random discharge of mud, help customers reduce construction costs, and be civilized and environmentally friendly.

Construction Piling Mud Separation Equipment can create the following advantages:

1. Adequate purification of the mud is conducive to controlling the performance index of the mud, reducing the sticking accident and improving the quality of hole making. The effective separation of soil ballast is conducive to improving the efficiency of hole making.

2. Realize mud recycling and save slurry-making materials. Significantly reduce waste pulp outbound costs and pulp making costs.

Mud Separation Equipment for building piling is mainly suitable for the recovery of mud essence in the construction of geology, hydropower, urban construction, bridge pile foundations, etc. and mud balance shield construction, which can reduce construction costs, improve hole formation efficiency, and reduce mud discharge. And sticking accidents are one of the necessary equipment for basic civilized construction. Using this equipment can create the following advantages for you to fully purify the mud, which is conducive to controlling the performance indicators of the mud, reducing sticking accidents, and improving the quality of hole making. The reuse of mud is conducive to saving slurry materials and reducing construction costs.