KOSUN

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  • The ＂golden pair＂ in the mud solid control system: the classification coordination mechanism of the desander and the centrifuge

    In the slurry solid control system, after the vibrating screen completes the separation of coarse particles, the coordinated action of the desander and the centrifuge becomes the key link to achieve precise classification of solid particles. Through different separation principles and classification treatments, the solid particles in the mud are efficiently separated by particle size, which not only ensures the stable performance of the drilling fluid but also significantly improves the utilization rate of resources and environmental benefits.
     

           

     

    I. Working Principles of Desander and Centrifuge
     
    Desander: Separation of medium particles under centrifugal force field
     
    Working principle: The solid-containing slurry enters the cyclone in a tangential direction. Under the centrifugal force field generated by high-speed rotation, the denser solid particles (76-47μm) are thrown towards the wall of the cyclone and discharged downward along the cone, while the liquid phase and fine particles are discharged from the central overflow pipe.
    Technical features: Processing capacity 50-200m³/h, separation efficiency depends on the feed slurry pressure (0.2-0.4MPa), cyclone diameter (8-12 inches), and sand discharge port size (1/4-1/2 inch).
     
    Centrifuge: Fine separation through ultra-high-speed rotation
     
    Working principle: The slurry enters the high-speed rotating drum (3000-5000 RPM), generating a strong centrifugal force to separate ultrafine particles (<15μm) from weighting agents such as barite. The liquid phase is discharged through the overflow port, and the solid phase is conveyed to the slag discharge port by the screw conveyor.
    Technical advantages: The separation accuracy can reach 5μm, the barite recovery rate exceeds 90%, and the material loss is significantly reduced.


     

     

    Ii. Synergistic Mechanism: "Classification – purification – circulation" in a trinity
     
    Classification treatment: The desander serves as the pretreatment unit
    The desander prioritizes the separation of medium particles larger than 74μm, which can reduce the processing load of the centrifuge by 30-50%. Data from a certain shale gas project shows that the processing capacity of the centrifuge after pretreatment has dropped from 150m³/h to 80m³/h, and the service life of the equipment has been extended by 20%.
     
    Deep purification: The centrifuge achieves fine control

     

    After being treated by the desander, the solid content of the mud was reduced to below 8%. The centrifuge further reduced the content of particles smaller than 15μm from 12% to within 5%, significantly improving the rheological properties of the drilling fluid.


     


     

    Resource recycling: A win-win situation for economic benefits and environmental protection
    The collaborative system can achieve a barite recovery rate of over 90%, and the moisture content of rock cuttings after dehydration is less than 30%. It can comprehensively reduce the cost of mud by 25-40% and cut the discharge of hazardous waste by more than 40%.
     
    Iii. Equipment Selection and Maintenance Guide
     
    Selection suggestions
    Desander: Polyurethane wear-resistant cyclone is preferred, and the processing capacity should cover the maximum drilling displacement (120%).
    Centrifuge: Select the dual-motor drive model based on the density of the slurry. The material of the drum needs to be corrosion-resistant
     
    Key points of maintenance
    Daily inspection: Cyclone wear condition, centrifuge vibration value
    Regular maintenance: Lubricate the bearings weekly and replace the seals monthly
    Anti-clogging measures: Install 100 front-mounted filters and configure an automatic backwashing device
     
    Hierarchical collaboration doubles efficiency
    The collaborative effect of the desander and the centrifuge is essentially an art of balancing "efficiency and precision". The former rapidly separates medium-sized particles through centrifugal force, while the latter achieves ultrafine purification through ultra-high-speed rotation. Both are indispensable. In the modern drilling field that pursues cost reduction, efficiency improvement and green low-carbon development, optimizing the collaborative mechanism of this "golden pair" will inject continuous vitality into the mud solid control system.

  • An efficient and environmentally friendly solution for the resource utilization of oily sludge

     
    With increasingly strict global environmental protection regulations, the efficient treatment of oily sludge has become an important issue in the petrochemical industry. As a major oil-producing region in the world, the Middle East generates a large amount of oily sludge during the processes of oil extraction, transportation, storage and refining. The main sources include drilling mud and crude oil separation residues from oilfield exploitation, bottom sludge from storage tanks in refineries, waste residue from oil pipelines, and contaminated soil due to leakage. According to statistics, the Middle East generates over several million tons of oily sludge every year. If not properly treated, it will seriously threaten the ecological environment.
    The hazards of oily sludge: Oil sludge has a complex composition and contains pollutants such as petroleum hydrocarbons, heavy metals, and toxic organic substances. If it is directly landfilled or piled up, it will lead to soil pollution, groundwater pollution, air pollution, cological risks, etc.


     

     

    The Xi 'an KOSUN oily sludge treatment system adopts advanced cleaning and separation technology, with a processing capacity of 50 tons per hour and an annual processing capacity of 200,000 tons. It achieves efficient separation of oil, water and solid phase, meeting the dual demands of environmental protection and resource recovery. The main components of oil sludge include sand (65%), soil (5%), coke (7%), and oil (23%). The treatment objective is to achieve a solid oil content of no more than 2%, facilitating subsequent biodegradation, water phase reuse, reducing fresh water consumption, oil phase recovery, and enhancing resource utilization.

     


     

    The processing technology involves the raw materials being uniformly conveyed to the sand washing machine through the feeding hopper of the feeding mechanism, the feeder, and the belt conveyor. At the same time, chemicals are added and high-temperature hot water is used for stirring and cleaning. The large particle materials after cleaning enter the vibrating screen for dewatering and screening, while the other oily materials are conveyed to the next processing equipment for sand and mud removal and separation. After the mud and sand are processed, the materials enter the centrifuge for oil and water separation. Meanwhile, the boiler heats the water tank to keep the system water at a certain temperature all the time, ensuring that the oil sludge treatment is efficient, environmentally friendly and energy-saving.

     

           

     

                                                                       Solid phase of vibrating screen                                           Centrifuge solid phase                                          Solid phase in a spin dryer

    The technical advantages enable it to efficiently handle a processing capacity of 50 tons per hour, meeting the demand for large-scale oil sludge disposal. The solid oil content is ≤2%, satisfying environmental protection emission standards. It features a high oil recovery rate, water recycling, reducing operating costs. The high-temperature hot water circulation system is energy-saving and environmentally friendly, reducing energy waste and conforming to the concept of green production.
     
    An efficient and environmentally friendly solution for the resource utilization of oily sludge is applicable to the treatment of oily sludge in industries such as oil extraction, refining and chemical processing, and storage and transportation, especially suitable for the disposal of high-sand-content oil sludge in the Middle East. The project not only solved the problem of oil sludge pollution, but also achieved "turning waste into treasure", promoting the development of a circular economy.
     


     

  • Drilling Fluid Purification Pioneer: The Application of shale shaker in Solid Phase Control

     
    In the entire process of drilling mud treatment, the drilling fluid shale shaker, as the "first line of defense for purification", plays an irreplaceable and crucial role. As the core equipment at the very front end of the solid-phase control system, it can quickly remove a large amount of drill cuttings generated during the drilling process with its efficient solid-liquid separation capability, laying a solid foundation for the subsequent mud purification treatment and directly affecting the efficiency and economy of the drilling operation.
     

         

     

    The working principle of the drilling fluid vibrating screen is based on the synergistic effect of mechanical vibration and screen filtration. The motor drives the exciter to rotate at high speed through a belt drive, generating a directional excitation force that drives the screen box to perform regular reciprocating vibration. When the mud carrying drill cuttings is evenly distributed on the screen surface from the slurry inlet, under the effect of vibration, the liquid phase and fine solid particles in the mud pass through the pores of the screen and enter the lower equipment, while the drill cuttings with a particle size larger than the screen holes are effectively discharged along the inclined direction of the screen surface and fall into the slag discharge trough to complete the separation. The mesh size and material selection of the screen should be flexibly adjusted according to the actual drilling geological conditions. In soft strata, 40-80 mesh screens are usually chosen to ensure processing capacity, while in hard rock strata, 100-200 mesh screens are used to improve separation accuracy. ​
     
    Engineering practice shows that the separation efficiency of the drilling fluid vibrating screen directly determines the reuse rate of the mud. In deep well drilling operations, the comprehensive cost of one cubic meter of mud per cycle can reach 3,000 to 5,000 yuan. If the separation effect of the vibrating screen is poor, a large amount of drill cuttings remaining in the mud will lead to deterioration of rheological properties, not only significantly increasing the energy consumption of the mud pump, but also may cause complex downhole situations such as wellbore diameter reduction.


    1. Sieve frame; 2. Base; 3.AWD Angle adjustment system; 4. Sieve tensioning system; 5. Feeding box; 6. Vibration isolation device; 7. Vibrating motor; 8. Electrical system; 9. Locking device

     

    The coordinated cooperation between the drilling fluid vibrating screen and the subsequent solid control equipment is particularly crucial. When the mud that has been initially purified by the vibrating screen enters the secondary treatment equipment such as the desander and desilter, since the large drill cuttings have been effectively removed, these devices can focus more on dealing with fine particle impurities, avoiding the decline in treatment efficiency caused by screen blockage.
     
    As the primary step in the purification of drilling mud, the stable and efficient operation of the drilling fluid vibrating screen is an important foundation for ensuring drilling safety and enhancing economic benefits. Its technological development has always been continuously advanced around the major direction of "efficient separation and energy conservation and environmental protection". In the future intelligent drilling system, this key equipment will continue to play an irreplaceable fundamental role, providing a solid guarantee for the safe and efficient implementation of drilling projects.

     

     

  • The KD-40 sludge-water separation system has been officially dispatched to Shanghai, facilitating efficient operation of on-board pipeline dredging

    Recently, the KD-40 sludge-water separation system produced by our company has successfully completed production debugging and has been officially dispatched to Shanghai.
    It will be used in conjunction with the vehicle-mounted pipeline dredging system, providing an efficient and reliable solution for urban pipeline maintenance.

     

     

    The KD-40 sludge-water separation system dispatched this time adopts advanced sludge-water separation technology and is equipped with our company's LS752 vibrating screen equipment.It features high separation efficiency, stable operation, and durability. The screen is configured with a double-layer slit mesh design, which can effectively meet the sludge removal requirements under complex working conditions and significantly improve the sludge-water separation efficiency. Its modular structure design and the selection of high-quality materials have significantly extended the service life of the equipment, reduced maintenance costs, and brought long-term economic benefits to customers.
     

                                                                                                           

     

    The KD-40 sludge-water separation system is specially designed for vehicle-mounted pipeline dredging scenarios. It is compact in size and easy to move, allowing for quick on-site operation and significantly enhancing dredging efficiency. It is particularly suitable for sludge treatment in urban underground pipe networks, municipal engineering, and other fields.
     
    Support smart cities and practice green environmental protection
    With the acceleration of urbanization, the problem of pipeline siltation has become increasingly prominent. Traditional dredging methods are inefficient and costly. The application of Xi 'an KOSUN's sludge-water separation system will significantly enhance the automation level of silt removal operations, reduce manual intervention, and achieve efficient separation of sludge and water, making waste treatment more environmentally friendly and economical.

     

    Xi 'an KOSUN is dedicated to the research and development and manufacturing of solid-liquid separation environmental protection equipment. It holds 53 patented technologies and its products are widely used in municipal, industrial, mining and other fields. It is committed to becoming a globally leading supplier of solid-liquid separation technology. We continue to focus on the field of environmental protection equipment, promoting industry upgrading with innovative technologies and providing customers with smarter and more reliable solutions.

     

     

  • Shanghai -40m³/h sludge-water separation system

     
    1. Project Background
     
    The total length of the underground drainage network in the central urban area of Shanghai exceeds 12,000 kilometers. With the arrival of the rainy season, the siltation thickness of some pipe sections exceeds 30% of the pipe diameter. Traditional manual silt removal is inefficient, has a significant impact on traffic, and poses a high risk of secondary pollution. The Xi 'an KOSUN KD-40 sludge-water separation system is specially designed for vehicle-mounted pipeline dredging scenarios. It is compact in size and easy to move, allowing for quick on-site operation and significantly enhancing dredging efficiency. It is particularly suitable for sludge treatment in urban underground pipe networks, municipal engineering, and other fields.
     
     
    2.Core Equipment
     
    KD-40 sludge-water separation system: Processing capacity 40m³/h, separation particle size over 0.15mm, solid phase removal rate > 80%.
     
    LS752 Double-layer slat vibrating screen: Excitation force 6G, screen life >5000 hours, slat design to prevent fiber entanglement.

     

     

    3. Process Flow
     
    Sewage suction truck suction → vehicle-mounted coarse screen →KD-40 cyclone sand removal →LS752 high-frequency dewatering → Clear water is discharged back into the pipeline network. The moisture content of the mud cake is ≤35%, which can be directly sent to the green composting or brick factory.

     
     
    4. Project Effectiveness
     
    The equipment is ready to use upon arrival, with immediate separation of sludge and water, and the sludge cakes can be transported out to meet environmental protection standards.
     
    On-site labor costs have been reduced by 75%.
     
    The external transportation volume of mud cakes decreased by 40%, and the comprehensive dredging cost dropped by 38%.
     
    The drainage capacity during the rainy season has increased by 25%, and complaints about urban flooding have decreased by 90% year-on-year.


     

      

     

    5. Customer Evaluation
     
    The owner customer in Shanghai pointed out that the KD-40 system is equipped with a vehicle-mounted silt removal system, truly achieving "stop and go" mobile silt removal, solving the long-standing traffic organization problem. The stability of the sludge-water separation index provides real-time and reliable data support for the Shanghai Smart Drainage Platform.
     
     
    6.Experience Summary
     
    Modular and lightweight design is the key to the rapid response of narrow urban blocks.
     
    Double-layer slit screen mesh performs exceptionally well for complex waste such as plastic bags and fibers, reducing downtime for maintenance.

     

  • 不合格好吧

    successfully shipped and officially sent to Uzbekistan.
    This batch of equipment will be used in local oil drilling projects in Uzbekistan to help customers improve construction efficiency.

     

  • Breaking News-Uzbek customers give thumbs up! Xi’an KOSUN mud mixers are successfully delivered

    Recently, 20 high-performance mud agitators produced by Xi 'an KOSUN were successfully shipped and officially sent to Uzbekistan.
    This batch of equipment will be used in local oil drilling projects in Uzbekistan to help customers improve construction efficiency.


    Xi 'an KOSUN mud agitators are manufactured with advanced technology and feature high-efficiency stirring, wear resistance and durability, as well as adaptability to complex working conditions.

    They can be widely applied in fields such as oil drilling, mining, and municipal engineering. The products are strictly produced in accordance with international standards, featuring stable performance and reliable quality.

     

    As an important energy producer in Central Asia, Uzbekistan has continuously intensified its efforts in the development of oil and gas resources in recent years.

    With the increase in drilling depth and the complexity of the formation, the technical requirements for solid control systems are becoming increasingly strict. Xi 'an KOSUN has successfully

    gained customer recognition with its superior product quality and comprehensive after-sales service. During the acceptance process,

    the customers highly praised the performance of the equipment and the professional services provided by XX Company, and expressed their anticipation for long-term cooperation.
     

          

    Xi 'an KOSUN has always adhered to the customer demand-oriented approach, providing high-quality products and services, and offering more efficient solutions for global customers!

    Xi 'an Kosun will continue to uphold the business philosophy of "technological innovation, quality first, and customer-oriented", continuously increase investment in research and development,

    and constantly improve product performance and service levels. The company plans to establish a more complete service network in Central Asia to provide customers

    with more timely technical support and after-sales service, and help the global oil and gas industry achieve efficient, environmentally friendly and sustainable development.

     

     

  • A batch of submersible slurry pumps from Xi ‘an KOSUN was sold to Turkmenistan

    Recently, a batch of high-performance submersible slurry pumps produced by Xi 'an KOSUN were packed and dispatched to the site of an oil and gas drilling project in Turkmenistan, to be used for the efficient transportation and circulation treatment of mud in the solid control system of drilling mud.


     

    Submersible slurry pump products specially configured for drilling operations
     
    The submersible slurry pump products are mainly applied in the mud tank system at the drilling site, used to transport solid-liquid mixtures containing drill cuttings and high-viscosity drilling fluids, providing continuous and stable slurry supply for downstream equipment such as vibrating screens, desanders, desilters and horizontal screw centrifuges. The submersible slurry pump products feature excellent wear resistance, strong sewage discharge capacity and stable and reliable operation performance. This batch of submersible slurry pumps is different from the traditional horizontal pumps. Its most prominent feature is that the pump body can be directly immersed in the medium for operation. It is suitable for the transportation tasks of high-concentration and highly abrasive mud, and has incomparable advantages in drilling sites with limited space and complex working environments.


      
     

    Application scenarios of submersible slurry pump equipment
     
    The submersible slurry pump will be integrated into the mud circulation system at the drilling site and mainly undertake the following functions:
    1. Slurry transportation: The slurry in the slurry pool is pumped into solid control equipment such as vibrating screens, desanders, and desilters to achieve solid-liquid separation.
    2. Mud recycling: The treated clean mud can be re-injected into the drilling system, reducing mud waste and enhancing environmental benefits.
    3. High adaptability: It is suitable for various working conditions such as oil drilling, coalbed methane development, and shale gas extraction.


     

    Serve the global market and contribute to clean and efficient energy development
    ​ It has wide applications in multiple industries such as oil and gas, shale gas, geothermal drilling, mining, shield machines, and environmental protection.
     
    At present, KOSUN brand products have served over 60 countries and regions around the world.
    Particularly in the markets along the "Belt and Road", such as Central Asia, the Middle East, Africa and South America,
    it has established a good reputation among customers and a solid market foundation. The successful delivery of the submersible slurry pump this time not only provided strong equipment support for the solid control project of drilling mud in Turkmenistan, but also once again demonstrated the technical accumulation and international service capabilities of the Kosun brand in the field of oil drilling.

    Let's connect, and we create big deals, on the basis of trust and broader benefits.

  • Six sand pumps were successfully delivered to support the oil and gas drilling project in Brazil

    On July 4th, Xi 'an Kosun Machinery Co., LTD., a leading manufacturer of solid control systems and drilling fluid processing equipment,
    successfully delivered six high-performance sand pumps to a well-known energy service company in Brazil.
    This delivery includes two 75-kilowatt and four 90-kilowatt sand pumps, which will be used for mud transportation operations in the oil and gas drilling project in Brazil.


       
     

    High-quality equipment ensures key drilling operations
     
    The sand pump delivered by Kosun this time adopts an advanced design concept and features high efficiency, durability and stable operation.
    It is specially designed for the harsh drilling environment. These devices will be used in the customer's drilling fluid circulation system to ensure
    the efficient operation of mud transportation and solid phase control during oil and gas well construction and completion operations.


     

    Join hands with the leader in Brazil's energy services sector
     
    The client of this cooperation is a well-established energy service enterprise in Brazil, which was established in 1981 and has profound accumulation in the fields of chemical solutions, fluid engineering and water management. With over 40 years of professional experience, the company provides completion fluids, workover chemicals and closed-loop water management solutions for the oil and gas industry, and is a trusted market leader in this field.
    Guided by the concept of sustainable development, the company is actively expanding the low-carbon energy market by leveraging its expertise in chemistry, critical mineral resources and global infrastructure layout. According to linkedin data, the company currently has 1,436 employees and is a significant enterprise in Brazil's energy services sector.


     

    Kosun Quality global service
     
    This successful delivery demonstrates Kosun's commitment to providing high-quality and reliable equipment for the global oilfield industry.
    With decades of experience in solid control systems and drilling waste treatment, Kosun is continuously strengthening its layout in the
    Latin American market and providing customized solutions for complex drilling challenges.
     
    Mr. Li, the sales director of Kosun International, said:
     
    We are honored to provide advanced sand pump equipment for this well-known Brazilian energy service enterprise.
    This delivery demonstrates Kosun's commitment to providing efficient, reliable and economical solutions for global drilling operations.
    We look forward to more cooperation in the future.
     
    About Xi 'an Kosun MachineryCo., LTD
     
    Kosun was established in 1992 and specializes in solid control systems, drilling waste treatment and oilfield equipment manufacturing.
    With its strong R&D capabilities and global sales network, Kosun products have served customers in over 60 countries and regions,
    providing innovative solutions for the oil and gas as well as environmental protection sectors!
    For more information, visit www.kosun.com

     


     

     

     

  • Maximize Drilling Efficiency with High-Performance Shale Shakers

     
     
    In the demanding world of drilling operations, maintaining clean and efficient drilling fluid is critical for success. Drilling fluid shale shakers serve as the first line of defense in solids control, removing large cuttings and ensuring optimal fluid properties for smooth, cost-effective drilling.

     

    Why Choose Our Shale Shakers?
    ✔ Superior Solids Removal – High-G vibration and fine mesh screens efficiently separate cuttings from drilling fluid, reducing waste and improving fluid reuse.
    ✔ Durable & Low Maintenance – Robust construction with corrosion-resistant materials ensures long service life even in harsh environments.
    ✔ Customizable Screening Options – Adjustable screen panels and vibration settings to match different drilling conditions (oilfield, HDD, geothermal).
    ✔ Energy-Efficient Operation – Advanced motor technology minimizes power consumption while maximizing performance.
    ✔ Compact & Easy to Install – Modular design allows seamless integration into new or existing solids control systems.
     
    Applications:
    Oil & Gas Drilling
    Horizontal Directional Drilling (HDD)
    Geothermal & Mining Operations
    Upgrade Your Solids Control System Today!
    Reduce downtime, extend fluid life, and enhance drilling efficiency with our high-capacity shale shakers. Contact us for expert recommendations and reliable equipment!