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  • Oil Sludge Treatment Methods

    Oily sludge treatment is an important solid waste generated in the petroleum industry production process and has been included in the National
    Hazardous Waste List (HW08 category).

    The following are several main methods for treating oil sludge and their characteristics

    processing mode Core principle Main applicable scenarios Key advantages Key advantages
    Chemical hot washing method Using hot alkaline water solution and surfactant, oil sludge was cleaned under heating and mechanical stirring to realize oil, water and solid three-phase separation. Landing sludge treatment, high oil content of sludge The oil recovery rate is high, the oil content of residue can be reduced to below 1%, the cost is relatively low, and the operation is relatively simple. The oil recovery rate is high, the oil content of residue can be reduced to below 1%, the cost is relatively low, and the operation is relatively simple.
    Incineration At high temperature (800-850℃), the organic matter in the oil sludge is oxidized and decomposed, so as to achieve maximum reduction and harmlessness. Various types of sludge are especially suitable for situations where other methods are difficult to treat or require complete harmlessness. Thorough treatment, remarkable volume reduction effect, and effective destruction of toxic and harmful substances. The equipment investment and operation cost are high, and the energy consumption is high, and the secondary waste gas may be generated, which should be strictly controlled.
    bio treatment method Using specific microorganisms to degrade petroleum hydrocarbons in oil sludge and convert them into harmless carbon dioxide and water. Sludge with relatively low oil content and not in a hurry to be treated, or as a means of advanced treatment. Low operation cost, environmental friendliness and no secondary pollution. The treatment period is long (several weeks to several months), and the efficiency is greatly affected by environmental factors such as climate and temperature, which requires high-efficiency degradation strain screening.
    Solvent extraction method Based on the principle of "similar miscibility", organic solvents were selected to extract and recover crude oil from oil sludge. Oil sludge with complex composition, high oil content and high recycling value The oil is completely recovered and the treatment effect is good. Extractants are expensive, costly and complex, and have not been applied in large-scale industrialization.
    Pyrolysis method Heating the sludge to a certain temperature under oxygen-free or anaerobic conditions, so that hydrocarbons and organic substances are thermally desorbed and condensed for recovery. All kinds of sludge are a new harmless treatment technology. The reaction conditions are milder than incineration, which can realize the recycling of hydrocarbon resources. The reaction conditions are demanding, the operation is complicated and the equipment investment is large.
    Curing/stabilization method Mixing sludge with curing agent (such as cement, lime, etc.) wraps harmful substances in the curing body to reduce its mobility and toxicity. Oil sludge with low oil content and high sediment content, or the treated residue is finally disposed of. The process is relatively simple and can effectively prevent the leakage of harmful substances. Oil can't be recovered, and the capacity is large, so long-term stability needs attention.
    Conditioning-mechanical dehydration By adding chemical agents such as flocculants and demulsifiers, the stable emulsified state of oil sludge is destroyed, and then dewatering and weight reduction are carried out by centrifuges, belt filter presses and other equipment. It is often used as a pretreatment step of sludge to reduce the load for subsequent treatment (such as incineration and landfill). It can effectively reduce the water content and volume of oil sludge and create conditions for subsequent treatment. It can effectively reduce the water content and volume of oil sludge and create conditions for subsequent treatment.
     
     
     

     

    How to choose the handling method
     
    When choosing an oil sludge treatment method, the following points need to be comprehensively considered:
    Sludge characteristics: including oil content, moisture content, oil quality, solid particle size and heavy metal content, etc.
    Processing requirements: It is necessary to clearly define whether the goal is resource recovery, harmless treatment or reduction, and
    understand the requirements of local environmental protection regulations for indicators such as the oil content of the treated residue
    (for example, many standards in China require that the oil content of the treated residue be ≤2%).
    Economy and scale: Evaluate investment costs, operating expenses and processing scale. Chemical hot washing and biological methods
    have relatively low operating costs, while incineration and pyrolysis require larger investments.
    Final disposal approach: Consider the destination of the treated products (such as recovered oil and residue), whether it is for recycling,
    landfill or resource utilization (such as brick-making and road paving).
     
    Technological development trends
     
    A notable trend in current oil sludge treatment is the combined application of multiple technologies to make up for the deficiencies of a single
    technology.
    For example:
    Hot washing + biological treatment: First, the majority of the oil content is rapidly reduced through hot washing, and then the residual petroleum
    hydrocarbons are deeply degraded by biological methods.
    Hot washing + profile control: The treated oil sludge is used as a conditioning agent in oilfield injection Wells to seal the high-permeability layer,
    increase the oil recovery rate, and achieve "waste treatment with waste".

     
    In the future,  waste oil sludge treatment technology is moving towards the direction of low cost, high efficiency, resource utilization, and green low-carbon, with a greater emphasis on the recycling and utilization of resources and the environmental benefits of the entire treatment process.

  • Kosun Machinery’s diesel-driven slurry mixing equipment has been exported to Australia, contributing to large-scale horizontal directional drilling projects

    Recently, Kosun Machinery has officially dispatched another set of high-performance diesel-driven slurry mixing equipment during the
    National Day holiday and delivered it to a leading directional drilling and rock excavation service engineering company in Australia for
    the slurry mixing operation of the drilling project it has contracted.
     
     
    Australian Directional Drilling Company is a professional horizontal directional drilling (HDD) service contractor, specializing in providing
    underground pipeline and trenchless installation solutions for the utility, municipal, energy and communication industries. Its main business
    covers: horizontal directional drilling, engineering design support, project feasibility studies, mud management systems, wireless positioning
    and tracking services, etc. The main business is concentrated in North America, with a focus on Canada and the western regions (such as British
    Columbia and Alberta), and is actively expanding into the US market. With experienced project experience, drilling operators and on-site engineers,
    we are capable of handling complex geological conditions and project challenges.
     
     
    This time, the Australian directional drilling company is cooperating with our company on the mud management system section. Professional drilling
    fluid/mud configuration, recovery and treatment are the key links for the success of HDD and also related to environmental protection compliance.
    As the sites of horizontal directional drilling (HDD) projects are usually located in the wild, by rivers, beside roads or in undeveloped areas, lacking
    a stable industrial power grid, the diesel-driven slurry mixing device produced by Kosun Machinery is an independent system with its own power source.
    After arriving at the site, it only needs to be connected to the slurry pipeline to start working, without waiting for complex power wiring or installation of
    large transformers. Moreover, after the project is completed, it can be quickly disassembled and transferred to the next construction site, which is highly
    suitable for the frequent movement of horizontal directional drilling (HDD) contractors.
     
    In horizontal directional drilling (HDD) operations, it is necessary to prepare and maintain high-viscosity drilling fluid to carry cuttings and stabilize the wellbore.
    The powerful torque of the diesel engine can easily drive the stirring shaft, maintaining efficient stirring even when the mud concentration is very high, avoiding
    "freezing" or motor overload.
     
     
    For a horizontal directional drilling (HDD) service provider like our client, Australian Directional Drilling Company, which mainly engages in field and cross-regional
    operations, diesel-driven mixing units are almost an inevitable choice. The independence, powerful performance, outstanding reliability and high adaptability to the
    site they offer It has perfectly solved the problem of continuous, stable and efficient supply of drilling fluid/mud at the horizontal directional drilling (HDD) construction site.

  • How should the desander and desilter in the mud circulation system be reasonably combined and used

     
    Domestic large-scale slurry circulation system manufacturing enterprises generally have the ability to design and produce cyclone desanders and slurry desilters (collectively referred to as solid control cyclones). The core performance index of the solid control cyclone is the separation particle size, which is usually represented by D50. The lower the D50 value, the better the separation effect. In terms of quality, the wear resistance of the cyclone is of vital importance. Currently, mainstream products mostly use polyurethane or high-chromium cast iron materials to ensure a longer service life.

     

    When configuring desanders and desilters, it is necessary to pay attention to the fact that the particle separation ranges of the two should not only maintain a certain interval but also have some overlap to achieve graded treatment. According to industry standards, cyclones with a separation particle size ranging from 74 to 44μm are classified as desanders, while those with a separation particle size ranging from 44 to 15μm are categorized as desilters. However, in practical applications, many on-site desanders and desilters have particle sizes close to each other (for example, the desander has a particle size of 20-50 μm, and the desilter has a particle size of 45-15 μm), which results in the latter being unable to effectively remove finer solid particles when the drilling fluid treated by the desander re-enters the desilter. This issue mainly stems from the fact that the manufacturing processes of some domestic cyclones have not yet fully met the requirements of drilling techniques. As a result, many users tend to replace the standard configuration of "one for sand removal and one for mud removal" with two desanders.
    Some users simply install a second desander at the original desilter station without adjusting the process flow. This approach is not scientific. If the performance parameters of the two devices are the same, a more reasonable approach should be to set them as parallel processes, which can not only serve as backups for each other but also work in coordination during the rapid drilling stage to increase the processing capacity. However, for well types with high requirements for drilling fluid performance, it is still recommended to adopt the series process of "one desander + one desilter" to ensure the solid control effect.
     

     

    Therefore, when choosing a desander and a desilter, models with significant differences in the range of separated particle sizes should be given priority. For instance, the desander covers 40-60 μm, while the desilter is responsible for 15-45 μm. This not only avoids the redundancy of equipment efficiency caused by overlapping processing zones but also achieves a better particle removal effect.
    The commonly used solid control equipment mainly includes three categories: drilling fluid vibrating screens, cyclone separators and drilling fluid sedimentation centrifuges. Among them, the cyclone separator can be further classified into desander, desilter and slurry cleaner. Drilling fluid centrifuges can be classified into screen-equipped drum centrifuges and sedimentation centrifuges based on structural differences. The former is typically used to recover the weighting materials in drilling fluid.

  • Mud gun: Solve the problem of drilling mud system in oilfield

    Mud gun: Solve the problem of drilling mud system in oilfield
    In oil field drilling operations, mud systems play a critical role in delivering drilling fluid (mud) to the bottom of the well, maintaining wellbore stability, cooling the bit, reducing friction between the bit and the hole, and carrying cuttings from the bottom hole to the surface. High mud system… Operation is critical to the smooth running of drilling operations. However, mud systems often accumulate a large amount of mud residue after a long period of operation, resulting in reduced operating efficiency and damage to bottom hole stability. In order to solve this problem, the mud gun-mud tank cleaning equipment came into being and became a helpful assistant in oil drilling operations.

     

     
    1. Working principle of the device
     
    Mud gun-mud tank cleaning equipment uses the principle of high-pressure water flow and mechanical rotation to quickly wash and remove residual mud, cuttings and solid particles from the mud system. Through the impact of high-pressure water flow, the equipment can quickly wash the mud residue attached to the wall of the mud tank, improve the cleanliness of the mud system, and maintain the high quality of the system. Operation.
     
    2. Device features
     
    High… Cleaning: The equipment adopts a combination of high pressure water flow and mechanical rotation, which can… Clean mud tank, mud gun and other equipment, keep the system clean.
     
    Water conservation: equipment adopts high-pressure water flow technology, nozzle design fine… Can maintain the cleaning effect at the same time… Maximize the conservation of water resources.
     
    Easy to operate: The equipment is compact and easy to operate, and only the operator can click the button to complete the cleaning task and improve the working efficiency.
     
    Strong adaptability: The equipment can be customized according to the needs of different mud systems, to adapt to different specifications, models of mud tanks and mud guns.
     
    3. Application scope
     
    Mud gun-mud tank cleaning equipment is widely used in oil drilling operations, which can not only improve the cleanliness of the mud system, extend the service life of the equipment, but also reduce the maintenance cost and improve the operation efficiency. The equipment is also suitable for other industrial areas where cleaning mud systems are required, such as mines, construction, etc.
     
    Conclusion
     
    The emergence of mud gun – mud tank cleaning equipment has brought a new solution for oilfield drilling operations. Its features of efficient cleaning, water saving and easy operation make the maintenance of the mud system more convenient and efficient. In the growing oilfield drilling industry, this equipment provides reliable technical support for improving operational efficiency and ensuring operational safety.

  • Diesel-driven slurry mixing units are exported to New Zealand

     
    Supporting non-excavation horizontal directional drilling operations
     
    Recently, the vehicle-mounted diesel-driven slurry mixing device, which was tailor-made by Kexun Machinery for overseas markets, officially set off and was successfully dispatched to New Zealand. It will be specifically applied to the local trenchless horizontal directional drilling operation scenarios. From the full-process implementation of technology research and development to customized production, and then to the successful conclusion of cross-border orders, this process highly demonstrates KOSUN Machinery's technological autonomy and production flexibility in the energy equipment field, injecting new impetus into the global energy equipment market landscape and continuously strengthening the competitive edge of the KOSUN brand in the international industrial chain.

     

     

    Vehicle-mounted diesel-driven slurry mixing device
     
    The core components of the vehicle-mounted diesel-driven slurry mixing device include the diesel tank, slurry mixing funnel, centrifugal pump head, dedicated base, intelligent control unit and high-performance diesel engine, etc. This set of equipment is mainly used for efficient shearing and mixing of bentonite added through the funnel, and then transporting it to the storage tank to ensure the stability and continuous operation of the drilling fluid system. In response to the customer's requirements, the technical engineers of Kosun customized the length and width of the equipment, enabling it to perfectly fit the on-board space of the customer's existing truck and greatly enhancing the mobmental protection.
     
     
    ility and on-site applicability of the equipment. This device features a compact structure and stable operation, and can be widely applied in trenchless construction scenarios in fields such as municipal, energy, and environ
    The overall system is scientifically designed and exquisitely crafted, ensuring reliability and durability under complex working conditions. With its profound technological accumulation and mature manufacturing system, Kosun has achieved complete independent research and development and production from core components to complete machine systems, demonstrating strong equipment matching and integration capabilities.

     

     
    Highly customized product solutions
     
    Kosun has always adhered to the customer demand-oriented approach and provided highly customized product solutions. The mixing equipment exported to New Zealand this time not only fully meets the customer's requirements in terms of size, but also performs outstandingly in functionality, stability and automation level, helping the customer improve operation efficiency and reduce operating costs. As a leading enterprise in the field of trenchless drilling equipment, Kosun's business has covered more than 70 countries and regions around the world. Our products are exported to Russia, Europe, Africa, America, the Middle East, Southeast Asia and other regions, and we continuously provide high-quality equipment and technical support to international customers.

  • Kosun cuttings dewatering machine: Efficiently recovers drilling mud and significantly reduces losses

     
    The cuttings spin dryer (also known as the continuous screen centrifuge) is a highly efficient solid-liquid separation device, featuring an automatic feeding control function, and is widely used in the treatment of drill cuttings during drilling operations. This equipment effectively separates the liquid components contained in drill cuttings by applying high-intensity centrifugal force, thereby achieving a high recovery rate of drilling fluid, improving resource utilization, and reducing environmental impact.

     

     
    The Kosun cuttings spin dryer system can reintroduce the recovered high-value drilling fluid into the in-use mud system, significantly reducing the cost of drilling fluid procurement. Especially in handling oil-based mud, it performs exceptionally well, significantly reducing the total amount of on-site waste and lowering subsequent disposal costs, which meets the requirements of modern drilling clean production and sustainable development.
     
     
    Product advantages
    Significantly reduce solid-phase emissions: The efficient separation technology greatly reduces the generation of solid waste, alleviating the pressure of environmental emissions.
     
    Liquid phase recovery and reuse: The separated liquid phase can be directly returned to the drilling solid control system for recycling, enhancing the efficiency of resource utilization.
     
    Comprehensive cost reduction: By recovering drilling fluid and reducing the amount of waste disposal, effectively control the costs of drilling fluid procurement and waste treatment.
     
    Support "No mud on the ground" : Help achieve the environmental protection operation goal of fully controllable, recyclable and scattered mud on the drilling site.

     

    The Kosun cuttings spin dryer, with its stable performance and outstanding processing effect, has become an indispensable environmental protection and energy-saving equipment in the oil drilling industry, providing reliable technical support for enterprises to achieve a dual improvement in economic benefits and environmental responsibility.
     

  • SOLID CONTROL EQUIPMENT:drilling fluid mud cleaner

    KOSUN drilling fluid mud cleaner is a drilling fluid solid control equipment that combines desander, desilter, and shale shaker. The mud cleaner has a compact structure, occupies a small space, and has powerful functions. It is an ideal choice for second and third-stage solid control in drilling mud and is highly popular in the drilling market. Currently, the best-selling model is MD210, which has a processing capacity of 240m³/h. It is equipped with two desanders hydrocyclone, 10-12 desilters hydrocyclone, and requires a 55kw sand pump to provide power. Other special requirements can be customized according to needs.
     

     
     
    Tags: drilling fluid mud cleaner, solid control equipment, for sale, manufacturer
     

  • Kosun Machinery’s mining drilling mud treatment system has been sent to Argentina, contributing to a leapfrog improvement in the competitiveness of the South American market!

    Recently, the mining drilling mud treatment system independently developed by Kosun Machinery has completed the factory inspection and has been

     officially dispatched to Argentina in South America. Relying on efficient solid-liquid separation technology and intelligent control modules,

    this system can precisely adapt to the complex geological conditions of overseas mining areas, providing equipment support for local mining enterprises

     to enhance resource development efficiency and reduce environmental protection treatment costs The technical adaptability of our

     company's environmental protection equipment in the international market has been further enhanced. In the mining industry,

    the ore drilling mud treatment system achieves efficient mud purification circulation through core equipment such as vibrating screens,

    centrifuges, mud mixing devices, mud tanks, sand pumps, and screw conveyors. It precisely treats mud containing rock powder and slag during mine construction.

    On the one hand, it can deeply purify and improve the accuracy of core sampling, providing reliable data for resource exploration. On the other hand,

     it effectively guarantees the drilling efficiency and wellbore stability, ensuring the continuous advancement of mining operations.
     

     

    More importantly, the mining drilling mud treatment system, through the efficient separation and treatment of slag, greatly reduces the risk of mud pollution to soil and groundwater,

    safeguarding the ecological environment of the mining area with technological power and practicing the international environmental protection concept of green mines.

     At present, this system has been widely applied in various mineral scenarios such as iron mines, copper mines, coal mines and limestone mines,

    demonstrating outstanding adaptability and reliability.

     

            


    From the raw material pump into the rough screening, to the centrifugal fine separation, and then to the slurry mixing, blending and reuse – the entire process is highly automated.

     The skid-mounted structure design takes into account both strength and convenience, making it convenient for long-distance transportation as well as for harsh on-site conditions.

    With its continuous innovative technological spirit and solid manufacturing foundation, Kosun has successfully transformed complex mining area operations into simple, efficient, stable and reliable standardized processes.


             

     

     

    Kosun Machinery has always maintained an open, lean and enterprising attitude, providing efficient, stable and environmentally friendly solid waste treatment solutions to

    the international market. Today, Kosun Machinery's presence has spread to over 70 countries and regions around the world,

    continuously empowering the energy and resource industry!

  • Kosun Machinery’s mining drilling mud treatment system has been sent to Argentina, contributing to a leapfrog improvement in the competitiveness of the South American market!

    Recently, the mining drilling mud treatment system independently developed by Kosun Machinery has completed the factory inspection and has been

     officially dispatched to Argentina in South America. Relying on efficient solid-liquid separation technology and intelligent control modules,

    this system can precisely adapt to the complex geological conditions of overseas mining areas, providing equipment support for local mining enterprises

     to enhance resource development efficiency and reduce environmental protection treatment costs The technical adaptability of our

     company's environmental protection equipment in the international market has been further enhanced. In the mining industry,

    the ore drilling mud treatment system achieves efficient mud purification circulation through core equipment such as vibrating screens,

    centrifuges, mud mixing devices, mud tanks, sand pumps, and screw conveyors. It precisely treats mud containing rock powder and slag during mine construction.

    On the one hand, it can deeply purify and improve the accuracy of core sampling, providing reliable data for resource exploration. On the other hand,

     it effectively guarantees the drilling efficiency and wellbore stability, ensuring the continuous advancement of mining operations.
     

     

    More importantly, the mining drilling mud treatment system, through the efficient separation and treatment of slag, greatly reduces the risk of mud pollution to soil and groundwater,

    safeguarding the ecological environment of the mining area with technological power and practicing the international environmental protection concept of green mines.

     At present, this system has been widely applied in various mineral scenarios such as iron mines, copper mines, coal mines and limestone mines,

    demonstrating outstanding adaptability and reliability.

     

            


    From the raw material pump into the rough screening, to the centrifugal fine separation, and then to the slurry mixing, blending and reuse – the entire process is highly automated.

     The skid-mounted structure design takes into account both strength and convenience, making it convenient for long-distance transportation as well as for harsh on-site conditions.

    With its continuous innovative technological spirit and solid manufacturing foundation, Kosun has successfully transformed complex mining area operations into simple, efficient, stable and reliable standardized processes.


             

     

     

    Kosun Machinery has always maintained an open, lean and enterprising attitude, providing efficient, stable and environmentally friendly solid waste treatment solutions to

    the international market. Today, Kosun Machinery's presence has spread to over 70 countries and regions around the world,

    continuously empowering the energy and resource industry!

  • KOSUN DC Series Decanter Centrifuge – Efficient Solid-Liquid Separation for Industrial Applications

    The KOSUN DC Series Decanter Centrifuge is a high-performance separation solution designed for industries requiring efficient solid-liquid separation. Engineered with advanced technology, this decanter centrifuge ensures optimal performance in drilling waste management, wastewater treatment, oilfield operations, and more.

    With robust construction, high-speed rotation, and customizable configurations, the KOSUN DC Series delivers superior dewatering and clarification, reducing environmental impact while maximizing productivity.
     

    Key Features of KOSUN DC Series Decanter Centrifuge

    1. High-Efficiency Separation

    The DC Series utilizes centrifugal force to separate solids from liquids with precision. Its high rotational speed ensures maximum separation efficiency, making it ideal for handling sludge, drilling cuttings, and industrial slurries.

    2. Robust and Durable Design

    Built with high-quality materials, the KOSUN decanter centrifuge withstands harsh operating conditions, including corrosive environments and high temperatures. Its wear-resistant components ensure long service life with minimal maintenance.

    3. Customizable Configurations

    The DC Series offers adjustable parameters such as bowl speed, differential speed, and weir plate settings, allowing operators to optimize performance based on specific application requirements.

    4. Energy-Efficient Operation

    Designed for low power consumption, the KOSUN DC Series reduces operational costs while maintaining high processing capacity. Its advanced control system ensures smooth and stable operation.

    5. Easy Maintenance and Automation

    With a user-friendly design, the decanter centrifuge allows for quick disassembly and cleaning. Optional automation features enable real-time monitoring and adjustments, enhancing operational efficiency.

     

    Applications of KOSUN DC Series Decanter Centrifuge

    • Oil & Gas: Drilling waste management, oil sludge treatment, and cuttings processing.

    • Wastewater Treatment: Municipal and industrial sludge dewatering.

    • Chemical & Pharmaceutical: Separation of fine particles and liquid clarification.

    • Food & Beverage: Processing waste and byproduct separation.

    • Mining & Minerals: Tailings dewatering and mineral recovery.
       

    Why Choose KOSUN DC Series Decanter Centrifuge?

    • Proven Performance: Trusted by global industries for reliable solid-liquid separation.

    • Cost-Effective: Reduces disposal costs and improves recycling efficiency.

    • Environmentally Friendly: Minimizes waste volume and supports sustainable operations.

    • Expert Support: KOSUN provides comprehensive technical support and after-sales service.

     

    The KOSUN DC Series Decanter Centrifuge is a top-tier solution for industries seeking efficient, durable, and customizable separation technology. Whether for oilfield operations, wastewater treatment, or industrial processing, this centrifuge delivers unmatched performance and cost savings.

    Contact KOSUN today to learn more about how the DC Series Decanter Centrifuge can enhance your operations!
     

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