KOSUN

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  • High-efficiency solid-liquid separation technology and application

    In industrial production and environmental governance, solid-liquid separation equipment is an important piece of equipment for enhancing efficiency, reducing costs and achieving green development. Solid-liquid separation technology is widely applied in fields such as oil drilling, municipal sewage treatment, mining, chemical engineering, and food processing, and is gradually becoming a "must-have equipment" on enterprise production lines.

     


    The core working principle of solid-liquid separation equipment is based on the mechanical characteristics of multiphase fluids. Through physical actions such as gravitational sedimentation, centrifugal force field, membrane separation, and medium screening, it achieves precise separation of solid-liquid two-phase systems. The essence of its technology lies in taking advantage of the differences in physical properties such as density, particle size and interfacial tension between solid particles and liquid media, and enhancing the separation efficiency through an external force field. Common types of equipment include centrifuges, vibrating screens, filter presses and cyclones, etc. Among them, the centrifuge utilizes the centrifugal acceleration generated by the high-speed rotation of the drum (which can reach hundreds to thousands of times the gravitational acceleration) to achieve rapid sedimentation separation by taking advantage of the density difference between the solid and liquid phases, and is particularly suitable for the efficient treatment of fine particle suspensions. The vibrating screen uses the periodic mechanical vibration generated by the excitation device to cause the material to form a throwing motion on the screen surface. The liquid and fine particles smaller than the screen holes pass through the screen, while the coarse particles larger than the screen holes are retained, achieving classification and separation. The filter press is based on the principle of deep filtration driven by pressure. It uses filter cloth as the filtering medium. Under the high-pressure squeezing action of the plate and frame or diaphragm, the liquid passes through the pores of the filter cloth to form filtrate, and the solid particles are retained to form a filter cake. It is particularly suitable for the deep dewatering of high-concentration suspensions. The cyclone utilizes the strong swirling field generated when the fluid enters tangentially. Under the combined action of centrifugal force and gravity, solid particles with higher density move towards the wall of the device and are discharged with the underflow, while liquids with lower density rise along the central axis and are discharged from the overflow port, achieving continuous solid-liquid separation operation. These devices, through the optimized matching and combined use of working condition parameters, can significantly enhance separation efficiency and ensure the stable operation of industrial production processes.


     

    The application fields of solid-liquid separation equipment are very extensive. In oil drilling, it can separate drill cuttings in the drilling fluid circulation system and maintain the performance of the drilling fluid. When treating municipal sewage, it can be used for sludge dewatering and water quality purification to ensure compliance with discharge standards. In the field of mining and metallurgy, it helps with pulp concentration and tailings treatment to achieve resource recovery. In the chemical and pharmaceutical industries, it can separate by-products and improve the purity of finished products. In the production of food and beverages, it can be used in processes such as juice clarification, starch extraction, and brewing filtration. From environmental governance to resource utilization, solid-liquid separation equipment almost covers all industrial scenarios related to liquids.
     
    When purchasing solid-liquid separation equipment, enterprises should focus on multiple key factors, such as processing capacity, and match the equipment model according to the production scale. Particle size: Different equipment is suitable for different ranges of solid particles. Degree of automation, whether continuous operation and remote monitoring are required; Wear-resistant and corrosion-resistant materials to adapt to acidic, alkaline or high-wear working conditions; There is also after-sales service. Does the manufacturer provide installation, commissioning, training and long-term maintenance? Choosing a suitable solid-liquid separation equipment manufacturer can help enterprises save on later operating costs and improve overall benefits. And such equipment itself also has many advantages. It not only separates efficiently, but also has strong processing capacity and stable efficiency. It can also save energy and protect the environment, reduce the discharge of wastewater and solid waste, and meet the requirements of green development. At the same time, it is easy to operate, highly automated, and can reduce reliance on manual labor.


     

     

  • The usage method of Mud Gun

    In numerous fields such as municipal drainage, construction, river dredging, and oilfield drilling, mud guns, with their high efficiency and convenience, have become important tools for handling mud and sewage. The mud gun effectively prevents the accumulation of sediment at the bottom of the tank through high-speed jet flow, ensuring that the drilling fluid remains uniform, thereby maintaining the continuity and safety of the drilling operation. Therefore, the correct use of mud guns can not only enhance drilling efficiency but also significantly reduce the risk of equipment failure and extend the service life of the entire solid control system. Mastering the correct usage of mud guns and understanding their safety operation norms are essential skills for every operator. This article will provide you with a detailed guide for using mud guns.



    The mud gun is a key auxiliary device in the solid control system and is usually installed on the upper part of the mud tank. Its main function is to ensure the normal operation of the mud mixer. By generating high-speed jets, the slurry gun can effectively impact the sediment at the bottom of the tank, preventing sediment from accumulating on the impeller of the agitator. This preventive effect is of vital importance because the accumulation of sediment can cause overload when the agitator starts up and even burn out the motor. After the mud tank has been storing mud for a long time, before starting the agitator, it is necessary to first use a mud gun to disperse the mud sand deposited around the agitator impeller. This operation can effectively prevent the agitator from being damaged due to excessive load.

    Before using the mud gun, a thorough inspection is indispensable. It is necessary to frequently check whether there is any mud leakage at the joints of the mud gun. If leakage is found, the sealing ring should be replaced in time. For the union joint part, it is recommended to disassemble and clean it once every six months, apply calcium-based grease to the rotating sleeve, and at the same time check the wear degree of the sealing ring. Checking whether each control gate valve is open is a necessary step before starting. At the same time, make sure that the entire solid control system has been connected as required and there are no abnormalities in all the manifold before starting the power supply. It is also necessary to check the lubricating oil levels of related equipment such as sand pumps and mud agitators to ensure good lubrication and avoid phenomena such as oil shortage, dry grinding or excessively high oil levels.
     

            

    When operating a mud gun, specific sequences and norms must be followed. When conducting sand cleaning work or high-pressure slurry circulation, the valve of the jet pipeline should be opened first, followed by the main valve of the upstream pipeline. When stopping the operation, the sequence is reversed: first close the main valve, then the valve of the jet pipeline to prevent high pressure from being blocked in the jet pipeline. When the mud gun is in operation, the operator should closely observe its working effect. If no mud movement is found around the mud gun, it is necessary to check whether the outlet of the lower nozzle is blocked. For the use of the mixing device, the butterfly valve at the bottom of the funnel should be closed first. After the pump is turned on and the circulation is normal, the butterfly valve should be slowly opened to prevent the liquid from flowing out of the funnel. Before shutting down, the butterfly valve should be closed first, and then the sand pump should be stopped.

    Regular maintenance and upkeep are the key to ensuring the long-term reliable operation of mud guns. In addition to disassembling and cleaning the union joint and adding grease every six months, it is also necessary to regularly clean the conical silo and the drilling fluid vibrating screen to remove the sediment. After each well is drilled, the accumulated sand in each tank must be removed and the mud pipelines should be flushed with clean water or steam. After use, the mixing funnel should be rinsed clean with clear water. Correct operation and regular maintenance of the mud gun can not only prevent the major loss of burning out the agitator motor, but also significantly improve the drilling efficiency and ensure the safety underground.

     

  • Why is mud purification equipment an indispensable part of modern engineering

     
    In the field of modern engineering construction, whether it is pile foundation construction, tunnel excavation, or oil drilling and mining, mud plays a crucial role. It can not only cool the drill bit and lubricate the drilling tools, but also balance the formation pressure and prevent accidents such as blowouts. However, as the project progresses, the mud will be mixed with a large amount of rock debris, sand and gravel and other impurities. If not dealt with in time, it will not only affect the construction efficiency, but also bring a series of environmental and cost problems. Therefore, the use of mud purification equipment has become an indispensable key link in modern engineering. ​


    In engineering construction, the cost of mud accounts for a certain proportion. If the used mud is not purified and treated but directly discarded and replaced with new mud, it will cause a huge waste of resources and significantly increase the construction cost. Mud purification equipment can effectively remove solid impurities from the mud through processes such as screening and centrifugal separation, making the purified mud meet the construction requirements again and achieving the recycling of mud. Take pile foundation construction as an example. In traditional construction, for every meter drilled, dozens or even hundreds of liters of mud may be consumed. However, after using mud purification equipment, the recovery rate of mud can reach over 85%. This means that under the same construction volume, the purchase volume of new mud is significantly reduced, and at the same time, the transportation and treatment costs of waste mud are also lowered. In the long term, the use of mud purification equipment can save a large amount of costs for the project and improve its economic benefits.

    In addition, with the continuous improvement of environmental awareness, the state has paid increasing attention to environmental pollution issues in engineering construction and has issued a series of strict environmental protection regulations. Untreated waste slurry contains a large amount of harmful substances, such as heavy metals and chemical additives. If discharged at will, it will pollute soil, water sources and air, causing serious damage to the ecological environment. At the same time, construction units may also face heavy fines. During the process of purifying mud, the mud purification equipment can separate solid impurities from the mud. The separated solid impurities can be solidified before transportation, reducing the risk of leakage of harmful substances. The purified slurry is recycled, significantly reducing the amount of waste slurry discharged. This not only complies with the national environmental protection standards, but also helps construction units establish a good social image and achieve the coordinated development of engineering construction and environmental protection.

     Secondly, mud containing a large amount of impurities will accelerate the wear of drilling tools, slow down the drilling speed, and may even cause accidents such as stuck drill and buried drill, seriously affecting the construction progress. Mud purification equipment can promptly remove impurities from the mud, maintain the stability of the mud's performance, reduce the wear of drilling tools, and enhance drilling efficiency. Meanwhile, stable mud performance is of vital importance for ensuring the quality of the project. The use of mud purification equipment can ensure that the specific gravity, viscosity, sand content and other indicators of the mud meet the construction requirements, providing a strong guarantee for the project quality.

    Finally, different engineering construction environments have different performance requirements for mud. For instance, when constructing in soft soil layers, the mud needs to have a high viscosity and wall protection capacity. When working in hard rock strata, the slurry needs to have good cooling and lubricating properties. Mud purification equipment can flexibly adjust the purification process and parameters according to different construction environments and mud performance requirements, enabling the mud to adapt to various complex geological conditions. In addition, when conducting construction in some remote areas or regions with strict environmental protection requirements, the transportation and treatment of slurry are subject to numerous restrictions. The on-site recycling of mud by using mud purification equipment not only reduces the volume of mud transportation but also minimizes the impact on the surrounding environment and enhances the adaptability of the project in complex conditions.
    In conclusion, the use of mud purification equipment is of great significance in reducing construction costs, minimizing environmental pollution, enhancing construction efficiency, ensuring project quality, and improving project adaptability. In modern engineering construction, the rational selection and use of mud purification equipment is an inevitable choice for achieving sustainable project development and also an important means for construction units to enhance their core competitiveness. ​

     

  • Why is mud purification equipment an indispensable part of modern engineering

     
    In the field of modern engineering construction, whether it is pile foundation construction, tunnel excavation, or oil drilling and mining, mud plays a crucial role. It can not only cool the drill bit and lubricate the drilling tools, but also balance the formation pressure and prevent accidents such as blowouts. However, as the project progresses, the mud will be mixed with a large amount of rock debris, sand and gravel and other impurities. If not dealt with in time, it will not only affect the construction efficiency, but also bring a series of environmental and cost problems. Therefore, the use of mud purification equipment has become an indispensable key link in modern engineering. ​


    In engineering construction, the cost of mud accounts for a certain proportion. If the used mud is not purified and treated but directly discarded and replaced with new mud, it will cause a huge waste of resources and significantly increase the construction cost. Mud purification equipment can effectively remove solid impurities from the mud through processes such as screening and centrifugal separation, making the purified mud meet the construction requirements again and achieving the recycling of mud. Take pile foundation construction as an example. In traditional construction, for every meter drilled, dozens or even hundreds of liters of mud may be consumed. However, after using mud purification equipment, the recovery rate of mud can reach over 85%. This means that under the same construction volume, the purchase volume of new mud is significantly reduced, and at the same time, the transportation and treatment costs of waste mud are also lowered. In the long term, the use of mud purification equipment can save a large amount of costs for the project and improve its economic benefits.

    In addition, with the continuous improvement of environmental awareness, the state has paid increasing attention to environmental pollution issues in engineering construction and has issued a series of strict environmental protection regulations. Untreated waste slurry contains a large amount of harmful substances, such as heavy metals and chemical additives. If discharged at will, it will pollute soil, water sources and air, causing serious damage to the ecological environment. At the same time, construction units may also face heavy fines. During the process of purifying mud, the mud purification equipment can separate solid impurities from the mud. The separated solid impurities can be solidified before transportation, reducing the risk of leakage of harmful substances. The purified slurry is recycled, significantly reducing the amount of waste slurry discharged. This not only complies with the national environmental protection standards, but also helps construction units establish a good social image and achieve the coordinated development of engineering construction and environmental protection.

     Secondly, mud containing a large amount of impurities will accelerate the wear of drilling tools, slow down the drilling speed, and may even cause accidents such as stuck drill and buried drill, seriously affecting the construction progress. Mud purification equipment can promptly remove impurities from the mud, maintain the stability of the mud's performance, reduce the wear of drilling tools, and enhance drilling efficiency. Meanwhile, stable mud performance is of vital importance for ensuring the quality of the project. The use of mud purification equipment can ensure that the specific gravity, viscosity, sand content and other indicators of the mud meet the construction requirements, providing a strong guarantee for the project quality.

    Finally, different engineering construction environments have different performance requirements for mud. For instance, when constructing in soft soil layers, the mud needs to have a high viscosity and wall protection capacity. When working in hard rock strata, the slurry needs to have good cooling and lubricating properties. Mud purification equipment can flexibly adjust the purification process and parameters according to different construction environments and mud performance requirements, enabling the mud to adapt to various complex geological conditions. In addition, when conducting construction in some remote areas or regions with strict environmental protection requirements, the transportation and treatment of slurry are subject to numerous restrictions. The on-site recycling of mud by using mud purification equipment not only reduces the volume of mud transportation but also minimizes the impact on the surrounding environment and enhances the adaptability of the project in complex conditions.
    In conclusion, the use of mud purification equipment is of great significance in reducing construction costs, minimizing environmental pollution, enhancing construction efficiency, ensuring project quality, and improving project adaptability. In modern engineering construction, the rational selection and use of mud purification equipment is an inevitable choice for achieving sustainable project development and also an important means for construction units to enhance their core competitiveness. ​

     

  • How to choose a drilling fluid centrifuge in oil drilling engineering?

    Drilling fluid centrifuges are indispensable equipment in oil drilling engineering. Their main function is to separate solid particles in drilling fluid to ensure the performance and quality of the drilling fluid.
    Selecting the appropriate drilling fluid centrifuge is of great significance in improving drilling efficiency, reducing drilling costs, and protecting the environment.

     

    I. Understand the basic types of drilling fluid centrifuges
    Drilling fluid centrifuges are mainly classified into the following types:
    Sedimentation centrifuge: It uses centrifugal force to make solid particles settle and separate in a high-speed rotating drum.
    Separation centrifuge: Through high-speed rotation, it separates liquids and solid particles of different densities.
    Filter centrifuge: Separates solids and liquids through a filter medium.
    Understanding different types of centrifuges helps to select the appropriate equipment based on specific drilling conditions.
     
    Second, consider the properties of the drilling fluid
    The properties of drilling fluid are crucial to the selection of centrifuges. The following are several key drilling fluid parameters:
    Density: High-density drilling fluid requires a higher centrifugal force to effectively separate solid particles.
    Viscosity: High-viscosity drilling fluids require stronger centrifuges for processing to prevent clogging.
    Solid content: Drilling fluids with high solid content require more efficient separation equipment.
    Iii. Determine the processing capacity
    Processing capacity is one of the factors to be considered when choosing a centrifuge. Processing capacity mainly includes two aspects:
    Processing capacity: The volume of drilling fluid that a centrifuge can process within a unit of time.
    Separation efficiency: The proportion of solid particles that a centrifuge can separate from drilling fluid.
    Generally speaking, the higher the processing capacity, the larger the size and power requirements of the centrifuge will be accordingly increased.

    I. Understand the basic types of drilling fluid centrifuges

    Drilling fluid centrifuges are mainly classified into the following types:
    Sedimentation centrifuge: It uses centrifugal force to make solid particles settle and separate in a high-speed rotating drum.
    Separation centrifuge: Through high-speed rotation, it separates liquids and solid particles of different densities.
    Filter centrifuge: Separates solids and liquids through a filter medium.
    Understanding different types of centrifuges helps to select the appropriate equipment based on specific drilling conditions.
     
    Second, consider the properties of the drilling fluid
    The properties of drilling fluid are crucial to the selection of centrifuges. The following are several key drilling fluid parameters:
    Density: High-density drilling fluid requires a higher centrifugal force to effectively separate solid particles.
    Viscosity: High-viscosity drilling fluids require stronger centrifuges for processing to prevent clogging.
    Solid content: Drilling fluids with high solid content require more efficient separation equipment.
    Iii. Determine the processing capacity
    Processing capacity is one of the factors to be considered when choosing a centrifuge. Processing capacity mainly includes two aspects:
    Processing capacity: The volume of drilling fluid that a centrifuge can process within a unit of time.
    Separation efficiency: The proportion of solid particles that a centrifuge can separate from drilling fluid.
    Generally speaking, the higher the processing capacity, the larger the size and power requirements of the centrifuge will be accordingly increased.

     

     

  • Another breakthrough in the Central Asian market! Kosun has started the delivery of 110 mud agitators and sand pumps

    Recently, Xi 'an KOSUN has completed the loading of the first batch of 45 high-performance mud agitators and 20 sand pumps custom-produced for an important partner in Central Asia – Uzbekistan.
     This move marks that the order of over 110 pieces of equipment signed by both parties has entered the substantive delivery stage.
    It fully demonstrated the competitive strength of Xi 'an KOSUN in the international oil and gas equipment market.

     


     

     

    To ensure that the equipment fully meets its strict project standards, the Uzbekistan client specially dispatched a professional engineer team to the Xi 'an KOSUN production base to conduct a comprehensive and detailed pre-shipment acceptance of the first batch of mud agitators and sand pumps to be dispatched. Customer representatives went deep into the workshop and conducted a detailed inspection of the key manufacturing processes, material quality, core performance parameters and overall appearance quality of the equipment. After rigorous testing and evaluation, the customer highly praised Kosun Company's advanced production technology, excellent product quality and strict quality control system, and successfully signed the acceptance document.
     

         

     

    In complex engineering fields involving fluid circulation such as oil drilling, geological exploration, and underground continuous wall construction, the on-site application of mud agitators plays an irreplaceable and crucial role. Its core mission lies in ensuring the stable performance of the circulating medium, especially the drilling fluid, thereby laying the foundation for the smoothness and safety of the entire operation process. The sand pump can efficiently and stably transfer the slurry containing highly abrasive solids, directly affecting the efficiency of the entire solid control process and the service life of the equipment.
     


     

    Xi 'an KOSUN always prioritizes customer satisfaction and product reliability. From precise design, strict material selection to lean manufacturing, every link implements a strict quality control process to ensure that every piece of equipment delivered can operate stably and efficiently at the customer's site and stand the test of time and complex working conditions.

     

            

     

    At present, the first batch of delivered equipment has embarked on its journey to Uzbekistan. Kosun is efficiently organizing the production of the remaining equipment to ensure the strict completion of subsequent
     order deliveries as planned and fully support the smooth progress of the customer's project construction.
    ​This cooperation has further consolidated Kosun Company's position in the Central Asian market and laid a solid foundation for deepening broader cooperation between the two sides in the future.

     

    Xi 'an KOSUN, as an industry benchmark in the fields of oil and gas equipment and environmental governance, has been dedicated to technological innovation and quality improvement for 34 years.
    The company now holds 53 international patent technologies and has continuously obtained global authoritative certifications such as the US API, the EU CE, and the Russian GOST.
    With outstanding product performance and a complete service system, Our business has covered over 70 countries and regions around the world.
    We have long been providing professional solutions for international energy giants and have established stable strategic cooperative relationships in key markets such as Central Asia, Russia and the Middle East.
    This series of achievements fully validates the outstanding quality and market recognition of Kosun products.

  • The multi-field application of drilling fluid desanders

     
    As a key unit of the mud purification system, the drilling fluid desander plays a cornerstone role in multiple industrial scenarios with its highly efficient solid particle separation technology.
    It utilizes the principle of centrifugal force field to precisely remove sandy particles from drilling fluid that damage system performance, ensuring the reliable operation of core equipment and promoting the industrial model of resource recycling. The following are several application scenarios of drilling fluid desanders:
     
    I. Oil Drilling: A dual test of performance and weather resistance
    1. Onshore deep Wells: As the well depth increases, the composition of cuttings carried by the drilling fluid becomes increasingly complex and variable.
    The desander needs to continuously deal with the challenges of mixed solid phases such as sandstone and mudstone. Its unique conical separation structure can generate a stable high-speed centrifugal field, effectively sort particles according to density gradients, significantly reduce the abrasive damage of sand particles to core components such as drilling pumps, and extend the service life of equipment.
    2. Offshore platforms: The harsh salt spray and high-humidity environment impose higher requirements on the corrosion resistance of equipment.
    The core components of the desander are usually made of corrosion-resistant alloy materials such as duplex stainless steel to ensure long-term high-precision separation capabilities under harsh Marine conditions.

     

     

    II. Geological Exploration: Adaptive Evolution under Extreme Working Conditions
    1. Complex strata: In the face of sudden changes in the strata encountered during drilling (such as sudden gushing gravel or high-viscosity soil layers),
    which cause a sharp increase in the solid concentration of the drilling fluid, the intelligent feed control system of the desander equipment can respond quickly and dynamically adjust the processing rate to ensure stable separation efficiency.
    2. Extreme environments: When operating in permafrost areas or high-altitude cold regions, the equipment is equipped with an insulation system,
    effectively preventing a sharp increase in the viscosity of drilling fluid at low temperatures and ensuring that the sand separation process is not disturbed by drastic temperature fluctuations. This highly adaptable design enables it to work reliably in harsh environments such as plateaus and deserts, providing pure mud media for geological information acquisition.
    III. Mining: The Synergy of Resource Sorting and Recycling
    1. Metal mine drilling: Drilling fluids are often mixed with valuable mineral micro-powders.
    The desander needs to be precisely controlled to distinguish the target mineral particles from the useless waste sand and avoid economic losses. Its modularly designed density adjustment unit can be flexibly configured according to the characteristics of minerals, maximizing resource recovery while protecting the drilling tools.
    2. Coal mine engineering: The desander and the coal slime treatment system work in coordination. The separated fine sand is used as underground filling material, while the coal slime is recycled as fuel, forming a closed-loop chain of "drilling – separation – reuse", significantly reducing the environmental footprint of mine operations.

     

    IV. Municipal Infrastructure: The Integration of Miniaturization and Green Construction
    1. Urban exploration: In small-scale drilling scenarios such as subway exploration or pipeline detection, portable desanders have emerged. Its highly integrated skid-mounted design is suitable for narrow Spaces and can be flexibly moved with the drilling rig. The purified slurry can be directly reused to prepare new slurry, significantly reducing the on-site discharge of waste liquid.
    2. Pile foundation construction: The desander and the slurry circulation pool work in tandem to efficiently remove sand particles and impurities mixed in during the concrete pouring process, ensuring the stable performance of the wall protection slurry and guaranteeing the formation quality and integrity of the pile foundation structure.
    In such applications, the desander not only solves the solid control problem but also strongly supports the green and civilized construction of the city by achieving zero discharge of slurry.
    The diverse application demands of various industries are constantly driving the technology of drilling fluid desanders to upgrade in the directions of intelligence,
    specialization and environmental friendliness. From special models that can withstand extreme environments to customized equipment that meets ultra-fine sorting requirements,
    its development trajectory has always closely followed the pain points of the industry, becoming a precise link in modern engineering that balances production efficiency and ecological responsibility.

     

  • The application of mud circulation systems

    In the field of geotechnical drilling and resource exploration, the mud circulation system is like the "dynamic blood vessels" of the engineering body.
    Through a continuous process of transportation-purification-regeneration, it provides a core guarantee for construction safety and efficiency.
    This closed-loop system, composed of mud tanks, pumping units, pipeline networks and purification devices, has become the infrastructure for key projects such as oil and gas development, geological surveys and underground space construction.

     

    The essence of system operation lies in maintaining the dynamic balance of fluids. The high-pressure pump takes mud from the mud tank and pressurizes it through pipelines to the front end of the drilling tool.
    The return slurry carrying drilling debris ascends along the annular space to the surface.
    After passing through purification units such as vibrating screens, desanders, desilters, and centrifuges to remove solid phases, the clean slurry is re-fed into the storage tank.
    This closed-loop mode not only stabilizes the mechanical environment of the wellbore but also significantly enhances the utilization rate of mud materials.
    Compared with the non-loop operation mode, the consumption of mud can be reduced by more than half.

     


     

    In the field of oil and gas drilling, the mud circulation system is the safety cornerstone of deep operations. For the construction of horizontal Wells over 3,000 meters long, facing the challenges of high-pressure formations and complex lithology, the mud circulation system can effectively counteract formation pressure and eliminate the risk of well surge out of control by precisely regulating the mud density.
    In geological exploration, the mud circulation system serves as the carrier for transmitting stratum information. In the drilling of metal ore cores, circulating mud serves three functions: cooling the drill bit, lubricating the drill string and transporting rock powder. The cuttings samples it carries are important media for analyzing the characteristics of strata.
     
    In trenchless engineering construction, the mud circulation system needs to dynamically optimize the mud formula based on the characteristics of the stratum: low-resistance lubricating slurry is used for viscous soil layers, while for sandy soil layers, thickening and wall protection materials (such as sodium-based bentonite) are injected to strengthen the hole wall support.

     

    In trenchless engineering construction, the mud circulation system needs to dynamically optimize the mud formula based on the characteristics of the stratum:
    low-resistance lubricating slurry is used for viscous soil layers, while for sandy soil layers, thickening and wall protection materials (such as sodium-based bentonite) are injected to strengthen the hole wall support.
    As engineering extends into extreme environments such as deep earth, deep sea and polar regions, the mud circulation system is undergoing an intelligent leap. The new generation of system integrates multi-source perception terminals and adaptive decision-making algorithms, which can diagnose the deterioration of mud performance in real time and independently optimize treatment parameters. In the future, this "engineering bloodline network" will continue to be upgraded, providing a solid fluid guarantee for humanity to expand the boundaries of engineering.

     

  • Why do drilling fluid mud tanks need to be cleaned?

    Drilling fluid mud tank (referred to as "mud tank") is the core equipment for storing, circulating and processing drilling fluid in drilling operations. As drilling fluid continuously carries rock cuttings,
    solid particles, chemical additive residues and other substances during circulation, deposits will form in the tank after long-term use. If these deposits are not cleaned in time,
    they will cause the following multiple problems:

     

     

    It affects the stability of drilling fluid performance
    After the sediment accumulates at the bottom of the mud tank, it will form a "stratification" with the upper layer of drilling fluid, causing fluctuations in key parameters such as the density, viscosity and shear force of the drilling fluid. For instance, an excessive amount of solid particles will increase the density of the drilling fluid and raise the load on the drilling pump. The deposition of clay particles can lead to a decrease in viscosity, affecting the rock-carrying capacity, and eventually may cause wellbore instability, stuck pipe and other drilling accidents.
     
    Reduce the operational efficiency of equipment and accelerate wear and tear
    Mud tanks are usually equipped with agitators, circulating pumps, desanders/desilters and other devices. Sediment may entangle the impeller of the agitator, resulting in uneven stirring. When entering the circulating pump or processing equipment, it will accelerate the wear of the impeller and pipeline, and even clog the filter screen, increasing the probability of equipment failure and affecting the continuity of drilling operations.
     
    Reduce the effective liquid storage volume and increase energy consumption
    Sediment accumulation will occupy the space inside the mud tank, reduce the actual liquid storage volume, and may lead to insufficient drilling fluid, forcing frequent replenishment and increasing costs. Meanwhile, to maintain the circulation, pump equipment needs to overcome greater resistance, resulting in a significant increase in energy consumption.
     
    Accelerate the corrosion of the tank and shorten its service life
    The sediment may contain acidic or alkaline substances (such as residual pH regulators in drilling fluid). Long-term adhesion to the mud tank wall/bottom can cause local corrosion (such as pitting), especially in weak areas like the bottom welds of the tank, which may lead to leakage. In severe cases, the tank body needs to be replaced, increasing maintenance costs.
     
    Meet the requirements of environmental protection and operation standards
    Drilling fluid may contain heavy metals, petroleum substances and other pollutants. If the sediment is discharged along with the discarded drilling fluid, it will cause environmental pollution. In addition, some industry standards (such as the norms for oil drilling operations) explicitly require regular tank cleaning to ensure operational safety and environmental compliance.
     
    In the face of all the above-mentioned problems, regular cleaning of drilling fluid mud tanks has become a necessary task. The traditional tank cleaning method mainly relies on manual cleaning as the core, supplemented by simple mechanical tools and basic equipment, and most operations are completed by human power. It has the characteristics of low equipment requirements, relatively low cost, but high labor intensity and relatively low efficiency. In response to this issue, Xi 'an Kexun Machinery has specially developed and produced an automatic tank cleaning device to address the numerous drawbacks existing in traditional tank cleaning methods. In the next issue, I will provide a detailed explanation of the automatic tank cleaning device of Kexun Machinery for everyone.

     

  • What are the advantages of the Kosun Machinery mud cooling system?

     
    During the drilling processes of oil, shale gas, geothermal energy, etc., the mud continuously heats up due to the high temperature of the formation, mechanical friction and chemical reactions. If the temperature is too high, it will lead to abnormal viscosity of the mud, failure of additives, reduced sand-carrying capacity, and accelerate the aging of drilling tools, pumps, valves and other equipment, and even cause risks such as wellbore instability and blowout.

     


     

    The mud cooling system is precisely a device specifically designed for the drilling field to address these risks. It can reduce the mud temperature to a reasonable range of 40-60℃, maintain its stable performance, ensure core functions such as sand carrying, lubrication and well pressure balance, and at the same time extend the equipment life, reduce shutdowns caused by mud failure, and improve drilling efficiency and operation safety.
     
    The basic principle of the mud cooling system is generally in the form of air cooling and water cooling, or a combination of air cooling and water cooling. Kexun Machinery, in light of the characteristics of the oil drilling site, has tailored a more energy-efficient and high-performance mud cooling system with automatic control functions for the customer.

     

    In the long-term practical application, the Kosun Machinery mud cooling system has demonstrated many advantages that other similar products do not possess, mainly in the following aspects:
     
    It features high cooling efficiency and fast cooling speed. According to the on-site working conditions, multi-stage cooling can be achieved. The conventional products of Kosun Machinery are designed to cool down within the range of 20-40℃. Finned heat exchange tubes can increase efficiency by 10%.
    2. The intelligent automatic control system automatically activates the evaporation mode when the dry operation mode fails to meet the cooling requirements.
    3. The closed cooling method significantly reduces the amount of evaporated water and white smoke.
    4. The special pipe arrangement method can prevent freezing and is not prone to scaling.
    5. It features a compact structure, high heat transfer efficiency, low operating costs, and convenient installation and maintenance.
    6. Large processing capacity and small floor space.
     
    The Kosun Machinery mud cooling system is suitable for temperature control of oil-based mud, water-based mud and composite mud, and can effectively reduce the temperature of the mud. It is applicable to the petroleum and chemical industry, new energy industry, pharmaceutical and biotechnology industry, power industry, etc. It is especially suitable for arid and water-scarce areas; Oilfield drilling mud cooling, natural gas hydrates, permafrost zone drilling, oil and gas drilling, geothermal drilling, etc.