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  • Forge Ahead with the Spirit of the Horse: KOSUN 2026 New Year Message

    As the wheel of time turns, we bid farewell to the Year of the Snake and gallop into the promising Year of the Horse (2026).
    Reflecting on our journey, Xi'an KOSUN Machinery remains deeply rooted in the historic soil of Xi’an, staying true to our founding principle: "Excellence in Profession, Prosperity through Precision." With high-end equipment manufacturing as our cornerstone, we have navigated industry tides with a spirit of craftsmanship, writing a bold new chapter for "Intelligent Manufacturing" on the global stage.
    Whether you are a member of the KOSUN family, a strategic partner, or a long-standing friend of the brand, we extend our most sincere gratitude and warmest New Year wishes to you.
     
    Extraordinary Achievements Through Steadfast Dedication
     
    The past year was defined by resilience and depth. KOSUN has demonstrated the true responsibility of a leading manufacturer through concrete actions rather than slogans.
     
    R&D Breakthroughs & Technical Leadership: Our R&D teams have pushed the boundaries of Drilling Waste Management (DWM) and Solids Control technologies. By optimizing core parameters for Oil-Based Cuttings (OBC) treatment and Zero-Discharge systems, we ensure KOSUN remains at the forefront of the global energy and environmental sectors.
     
    Precision Engineering & Quality Assurance: On the factory floor, our technicians uphold the most rigorous standards. From Decanter Centrifuges to Vertical Cuttings Dryers, every piece of equipment is a testament to KOSUN’s commitment to reliability and durability.
     
    Global Reach & "Belt and Road" Excellence: Our sales and service teams have traversed the globe, from the strategic hubs of the "Belt and Road" initiative to remote project sites. We deliver not just hardware, but integrated turnkey solutions and a promise of professional localized support, ensuring peace of mind for our clients worldwide.

     
    2026: Galloping Toward a Sustainable Future
     
    The Year of the Horse represents energy, speed, and progress. Standing at this new threshold, KOSUN will continue to specialize in the Solid-Liquid Separation sector and leverage our manufacturing prowess to expand our global footprint.
     
    Innovating for the Future: We will continue to inject "Smart" capabilities into our hardware. By integrating automation and IoT monitoring into our waste management systems, we aim to provide even more efficient and eco-friendly solutions for the global energy industry.
     
    Deepening Global Integration: KOSUN will further strengthen its global service network, focusing on localized operations and resource integration. We seek to build an open, win-win ecosystem with partners to bridge the infrastructure gap along the Silk Road with "Hardcore" equipment strength.
     
    Empowering Growth: We remain committed to providing a platform where every employee can thrive, ensuring that technical innovation and market expansion go hand in hand.
     
    May we all embrace the "Dragon-Horse Spirit"—a symbol of vitality and success. Whether tackling complex technical challenges or exploring new frontiers in the global market, KOSUN is ready to bridge the future with intelligent manufacturing and sustainable innovation.

     
    Wishing you a prosperous Year of the Horse!
    May your journey be swift, your success be great, and your future be bright.
     
    Happy New Year!

  • Eliminating ＂Fish Eyes＂ and Mitigating Formation Damage through Advanced Shear Pump Technology

    In the formulation of high-performance drilling fluids, the oilfield shearing pump is indispensable for regulating rheological parameters. High-molecular-weight polymers (such as PAC and PHPA) are critical materials, but their ultra-high molecular weight often leads to partially hydrated agglomerates upon water contact. Without a high-efficiency shear pump, polymers and bentonite fail to receive the necessary mechanical dispersion, resulting in "fish eyes"—masses that are viscous externally but dry internally. This incomplete dissolution causes expensive chemicals to be wasted via shale shakers and triggers risks like wellbore instability and differential pressure sticking. Furthermore, these unhydrated particles can plug formation pores, leading to irreversible reservoir damage and reduced production.

     
    Overcoming Polymer Hydration Barriers with Oilfield Shearing Pump
     
    Polymer particles tend to form a viscous surface film that inhibits water penetration. Industry-standard mud tank agitators lack the shear force required to break this tension. Integrating a dedicated shear pump into the mixing system provides the high-energy impact needed to encapsulate dry powder into the fluid effectively. Utilizing an oilfield shearing pump ensures that additives are fully utilized during the first circulation, preventing the significant material waste that occurs when undissolved "fish eyes" are removed by solids control equipment.
     
    Mitigating Formation Damage and Skin Effect
     
    When unhydrated micelles enter the downhole environment, they often exceed the reservoir's pore throat diameters, creating the "skin effect." This physical blockage reduces formation permeability and ultimate oil recovery. By employing a shear pump to ensure 100% polymer hydration before injection, operators can protect formation assets and maintain optimal flow paths. The pre-shearing process is a critical step in professional formation protection strategies.
     
    Optimizing Rheology via Mechanical Shearing Energy
     
    The primary function of an oilfield shearing pump is to forcibly crush particles and tear viscous films through instantaneous mechanical power. This intensive shearing promotes the full extension of polymer long chains. Mud systems treated by a shear pump achieve design standards for Yield Point (YP) and Plastic Viscosity (PV) much faster, significantly enhancing performance in hole cleaning and shale inhibition.
     
    Economic Benefits of Integrating a Shear Pump
     
    Investing in a high-quality oilfield shearing pump is a strategic move for cost management. By maximizing the hydration efficiency of bentonite and chemical additives, drilling crews can typically reduce additive consumption by 15% to 30%. Beyond chemical savings, the stable mud properties provided by a shear pump mitigate downhole risks, ensuring safer and more efficient drilling cycles.
     

  • Analysis of Downhole Instrument Damage Mechanism by Harmful Solids and Solids Control System Solutions

    In modern oil drilling, especially in deep and extended-reach drilling (ERD) operations, the management of solids content in drilling fluids is not only about mud performance but is also a core variable determining the lifespan of expensive downhole tools. As the "kidney" of the drilling rig, a premium Solids Control System is responsible for removing harmful solids and protecting precision instruments.

     
    Erosion Damage Mechanism of Harmful Solids on Precision Downhole Instruments
     
    During the drilling circulation process, drilling fluids inevitably contain a large amount of rock cuttings. According to research reports on the impact of sand content on downhole tool reliability published by the Society of Petroleum Engineers (SPE), hard solid particles with a diameter greater than 20 microns are the primary cause of premature failure in downhole tools.
    When the purification efficiency of a Solids Control System is low, these fine particles enter the borehole at high speeds with the mud, creating a severe "sandblasting effect" on the pulse generators and sensor seals of Measurement While Drilling (MWD) and Logging While Drilling (LWD) instruments. Research data indicates that for every 1% increase in sand content, the Mean Time Between Failures (MTBF) of downhole tools is shortened by approximately 50%. This physical erosion not only leads to signal transmission interruptions but also triggers expensive unplanned tripping, resulting in massive Non-Productive Time (NPT) losses.
     
    Decisive Impact of High Efficiency Solids Control System on Mud Performance and Equipment Life
     
    A scientifically configured Solids Control System must achieve stepped interception of different Particle Size Distributions (PSD). According to the API RP 13C standard defined by the American Petroleum Institute (API), the separation efficiency of solids control equipment directly affects overall drilling productivity.
    An effective solids control workflow must not only remove coarse cuttings but also utilize the precision coordination of desanders, desilters, and high-speed VFD centrifuges to eliminate harmful solids above 5 to 7 microns. This multi-stage treatment ensures that the mud entering the hole maintains low sand content, preventing premature failure of Positive Displacement Motor (PDM) bearings caused by particle accumulation. Furthermore, a high-efficiency Solids Control System can significantly inhibit the thermal degradation of mud additives and maintain stable rheology, thereby ensuring a consistent Rate of Penetration (ROP) and significantly extending the service life of mud pumps.
     
    KOSUN Technical Expertise and Leadership in Solids Control Since 1992
     
    As a leading global expert in solids control, KOSUN has been dedicated to the research, development, and innovation of drilling fluid circulation and purification technology since 1992. With over thirty years of industry experience, KOSUN provides expert-level customized solutions for diverse geological conditions worldwide.
    KOSUN’s high-performance shale shakers utilize advanced linear motion technology to generate ultra-high G-forces, forcibly discharging large amounts of harmful solids during the primary purification stage. For extreme environments, KOSUN's Arctic Solids Control System solves the industry challenge of equipment operation at temperatures as low as -40°C. From early single-equipment manufacturing to today’s integrated, intelligent, and modular Solids Control System solutions, KOSUN, with its deep technical heritage accumulated since 1992, continues to empower global customers to achieve safe and efficient drilling in harsh climates and complex formations.

  • High Temperature Drilling Fluid Hazard Analysis and Drilling Mud Cooling System Technical Advantages

    In modern deep, ultra-deep, and geothermal drilling operations, the challenges brought by geothermal gradients cannot be ignored. When bottom-hole temperatures exceed 150°C, the drilling fluid serves not only as a medium for transmitting power but also as a carrier of intense heat. Without an effective Drilling Mud Cooling System to treat the returning fluid, the entire drilling operation faces severe performance challenges and economic losses.
     
    Deep Seated Hazards of High Temperature Drilling Fluids to Operational Safety
     
    In the international drilling engineering community, high temperature is regarded as a core factor triggering Non-Productive Time (NPT). Its hazards are first reflected in the high failure costs of downhole measurement instruments. According to technical literature such as SPE-170268-MS from the Society of Petroleum Engineers (SPE), for every 10°C increase in ambient temperature, the reliability of electronic components in MWD/LWD instruments decreases by approximately 50%. This heat-induced circuit aging or battery thermal runaway triggers frequent fault alarms, forcing operators into unplanned tripping, where the time cost and repair expenses for a single trip typically reach tens of thousands of dollars.
    Simultaneously, high temperatures cause a collapse in the rheology and chemical stability of the drilling fluid. Related experiments confirm that common fluid additives, such as fluid loss reducers and tackifiers, undergo irreversible thermal degradation above 120°C, leading to uncontrolled viscosity. Deteriorated mud fails to effectively carry cuttings and may cause wellbore instability or a surge in HTHP (High-Temperature High-Pressure) fluid loss, triggering serious downhole accidents such as stuck pipe.
    Furthermore, for operations using Oil-Based Mud (OBM), the International Association of Drilling Contractors (IADC) emphasizes the critical importance of flash point management. If the outlet mud temperature approaches the flash point, base oil evaporation increases costs by more than 10% and forms flammable aerosols near the shale shakers, posing a severe threat to the life safety of on-site personnel.

     
    Technical Countermeasures and Core Advantages of a Drilling Mud Cooling System
     
    To address these challenges, integrating an efficient Drilling Mud Cooling System has become an industry consensus. A mature cooling solution not only protects hardware through physical cooling but also achieves breakthroughs in economic efficiency.
    By controlling the inlet mud temperature within a safe range (typically 50-60°C), the Drilling Mud Cooling System significantly extends tool life, increasing the service life of downhole motors and bit seals by more than 2 times. Meanwhile, the system effectively optimizes drilling fluid costs by inhibiting the thermal degradation of chemical additives and reducing the frequency of material replenishment. Lower circulation temperatures also facilitate better control of cement slurry thickening time, ensuring the success rate of cementing operations.
     
    Technical Highlights of the KOSUN Intelligent Drilling Mud Cooling System
     
    As a professional global supplier in the solids control field, the Oilfield Mud Cooling System developed by KOSUN stands out with several technical advantages. The system utilizes a specialized finned heat exchange tube design, enhancing heat exchange efficiency by 10%. Standard designs achieve a significant temperature reduction of 20-40°C and support multi-stage cooling configurations based on specific site conditions.
    Regarding intelligent operation, the system is equipped with advanced automated control logic. When the dry running mode cannot meet cooling requirements, the system automatically activates the evaporative mode to ensure continuous cooling capacity in extreme environments. The closed-loop cooling method greatly reduces water evaporation and "white smoke" emissions. Combined with a unique piping arrangement, it effectively prevents freezing and scaling, significantly reducing long-term maintenance workloads.
    The KOSUN Drilling Mud Cooling System achieves a balance between high processing capacity and a compact footprint. Its streamlined structure is not only easy to install but also features low operating costs, providing an ideal solution for space-constrained well sites while maintaining high thermal transfer efficiency. Scientific temperature management is the lifeline for successful deep well operations, and choosing an efficient Oilfield Mud Cooling System means optimizing operating costs while mitigating risks.
     

  • Classification of Mud Pumps and Their Applications in Solids Control Systems

    In the fields of oil drilling, trenchless (HDD) engineering, and mining, the mud pump serves as the core power equipment of the fluid circulation system. It is responsible for driving the drilling fluid to circulate between the surface treatment equipment and the downhole, performing critical tasks such as carrying cuttings, cooling the drill bit, and balancing formation pressure.
    Entering 2026, with continuous advancements in solids control technology, the classification of mud pumps has become more distinct. In practical operations, based on different working principles and output characteristics, mud pumps are primarily divided into centrifugal pumps, screw pumps, and other auxiliary pump types.
     
    Centrifugal Pumps as Fundamental Circulation Equipment
     
    Centrifugal pumps are the most widely used power equipment in solids control processes, primarily responsible for large-scale fluid transfer and supply.
     
    Working Principle of Centrifugal pumps
    The centrifugal pump achieves fluid transport via the centrifugal force generated by the high-speed rotation of an internal impeller. It sucks mud from the center and pushes it toward the discharge pipeline, converting kinetic energy into pressure energy.
     
    Application Scenarios of Centrifugal pumps
    Feeding Hydrocyclones: This is the primary application. It provides the necessary pressure and flow for desanders and desilters, ensuring effective solid-liquid separation within the cyclones.
    Mud Mixing and Preparation: When adjusting mud properties, centrifugal pumps drive mixing devices to fully integrate new powder additives with the base mud.
    Fluid Transfer: Used for rapid liquid transfer between mud tanks to maintain level balance across the system.
     
    Technical Features of Centrifugal pumps
    Simple structure, easy maintenance, and high wear resistance, making them capable of handling raw drilling fluids with high sand content.

     

    Screw Pumps for Precision Purification Stages
     
    Screw pumps (specifically Progressive Cavity Pumps) have become the core supporting equipment for fine processing stages due to their smooth, low-shear conveying characteristics.
     
    Working Principle of Screw Pumps
    As a positive displacement pump, the screw pump utilizes an eccentric rotor rotating within a sealed cavity to steadily push material from the suction end to the discharge end at a constant volume.
     
    Application Scenarios of Screw Pumps
    Centrifuge Feeding: This is the most critical role for screw pumps. Decanter centrifuges require highly stable feed; screw pumps provide a constant, non-pulsating flow, ensuring the continuity and stability of the separation effect.
    High-Viscosity Media Transport: Due to their extremely low shear force, they do not damage the chemical components of the mud, making them ideal for transporting thick waste slurry or high-concentration polymer solutions.
     
    Technical Features of Screw Pumps
    The flow rate is proportional to the speed, allowing for precise delivery control and the ability to pump thick materials with poor fluidity.

     
    Other Auxiliary Pump Types and Applications
     
    To handle specific working conditions, the following pump types are used as supplements in solids control systems:
     
    Reciprocating Pumps (Piston/Plunger Pumps)
    These generate high pressure through the reciprocating motion of a piston in a cylinder. They primarily serve as the main drilling pumps to inject mud into deep wells. In environmental sectors, they are also used for high-pressure re-injection of treated cuttings into formations.
     
    Submersible Slurry Pumps (Vertical Sand Pumps)
    These are centrifugal pumps where the pump body is directly immersed in the liquid. They are mainly used to clean sediment at the bottom of mud tanks or to pump mud from low-level pits to surface purification equipment, requiring no priming and offering easy startup.
     
    Shear Pumps
    Based on the centrifugal pump structure, these include a special shearing function. They are specifically designed to accelerate the dissolution of polymers in mud, eliminating "fish-eyes" (clumping) through mechanical shear force to improve mixing efficiency.
     
    Diaphragm Pumps
    Driven by compressed air, these use a reciprocating diaphragm to create suction. They are commonly found in environmental "Drilling Cuttings Management Systems" (Zero-Discharge systems) for transporting highly abrasive, high-concentration waste slurry or various chemical additives.
     
    In modern solids control systems, the division of labor is clear: large-scale fluid transfer and cyclonic purification rely on centrifugal pumps; precision centrifugal separation is powered by screw pumps; and special conditions are addressed by submersible, shear, or reciprocating pumps. Field experience demonstrates that rational pump configuration is the key to improving treatment efficiency and reducing equipment failure rates.

  • The Vital Role of a High-Efficiency Centrifugal Pump for Solids Control System in Cost Management

    In the budget structure of modern oil and gas drilling operations, drilling fluid (mud) costs often represent a significant percentage, particularly in complex well conditions involving expensive Oil-Based Mud (OBM) or Synthetic-Based Mud (SBM). Optimizing mud management and achieving high recovery rates are critical factors in determining project economics. A centrifugal pump for solids control system, such as the high-performance units manufactured by KOSUN, is more than just fluid transfer equipment—it is a strategic asset designed to help you achieve your "Cost Reduction and Efficiency Enhancement" goals.

    Maximizing Recovery Efficiency of Valuable Mud

    The performance of a centrifugal pump for solids control system directly impacts the separation efficiency of the entire drilling waste management layout. KOSUN’s specialized pumps feature an advanced closed impeller design with back vanes on the impeller shroud. This precise engineering ensures that the centrifugal pump for solids control system provides stable, accurate flow and pressure output across various operating conditions while effectively increasing the pump head and minimizing internal leakage.

    Ensuring Optimal Operating Conditions: Stable feeding pressure from a reliable centrifugal pump for solids control system allows downstream equipment, such as Desanders and Desilters, to operate at their peak design parameters. This maximizes the removal of harmful solids while minimizing the loss of valuable mud.

    Reducing Mud Waste Discharge: Implementing a high-efficiency centrifugal pump for solids control system for mud recovery means less waste of expensive chemicals and base oils, translating directly into substantial cost savings for the operator.

    Reducing Drilling Costs Through Superior Reliability

    Unscheduled downtime is the largest "hidden waste" in drilling operations. A robust centrifugal pump for solids control system must be reinforced to handle the highly abrasive nature of oilfield environments. KOSUN units are widely utilized as feed pumps for desanders/desilters, jet mixing pumps, and as ideal Charge Pumps for main mud pumps to ensure stable primary pump operation throughout the drilling cycle.

    High-Wear Resistant Tungsten Carbide Mechanical Seals: Every KOSUN centrifugal pump for solids control system utilizes industry-leading tungsten carbide mechanical seals. Compared to traditional packing or standard seals, these offer significantly higher resistance to erosion and corrosion from high-solids mud, extending the seal life of the centrifugal pump for solids control system by several times.

    Wear-Resistant Material Application: The pump casing and impeller are cast from high-chromium alloy iron. The thickness and material grade of this centrifugal pump for solids control system are specifically chosen to withstand long-term, high-speed abrasion, ensuring continuous and stable operation in the harshest global drilling conditions.

    Choosing and deploying a high-performance centrifugal pump for solids control system is a decisive step toward optimizing drilling fluid management and enhancing overall operational efficiency. Through technical innovation, we help our clients uncover cost-saving opportunities and safeguard the economic benefits and sustainability of their drilling projects.
     

  • Drilling Mud Degasser and Mud Gas Separator Synergy for Well Control Safety

    In upstream oil and gas exploration, drilling fluid serves as the critical barrier for maintaining downhole pressure. However, when the drill bit encounters high-pressure formations, gas intrusion into the mud circulation system creates highly destructive gas-cut mud. Improper handling can lead directly to well control failure or even a catastrophic blowout.
    To ensure operational safety under Health, Safety, and Environment (HSE) management systems, the industry employs two key lines of defense: the Mud Gas Separator for emergency high-concentration gas cut, and the Drilling Mud Degasser for the removal of routine trace gases.

     
    Density Drop and the Chain Collapse of Bottom-Hole Pressure
     
    The core hazard of gas cut lies in the reduction of hydrostatic pressure. Due to the high compressibility of gas, bubbles entrained in the mud expand exponentially as they rise through the annulus and external pressure decreases. This expansion causes a sharp drop in mud density, leading to an imbalance in bottom-hole pressure. Once this pressure falls below the formation pore pressure, it triggers an influx (kick) that can escalate into a blowout.
     
    The First Line of Defense, Emergency Response of the Mud Gas Separator
     
    When sudden, high-concentration gas intrusion occurs, free gas must be processed rapidly and at high volumes.
    Functional Positioning: The Mud Gas Separator is the primary physical barrier against large-scale gas intrusion.
    Principle and Role: Utilizing gravity separation and impact baffles, it forces mud entering from the top to strike splash plates, achieving rapid gas-liquid separation. Large volumes of free gas are directed through large-diameter vent lines to a remote flare system for safe combustion or venting. It is the frontline emergency equipment for protecting the lives of personnel on the drill floor, specifically handling large "free" gas bubbles.
     
    The Second Line of Defense, Precision Rheology Restoration via Drilling Mud Degasser
     
    During routine drilling or after a Mud Gas Separator has processed a large gas cut, significant amounts of tiny entrained bubbles and dissolved gases remain in the mud. At this stage, the Drilling Mud Degasser intervenes as the second precision line of defense for well control.
    Functional Positioning: Focused on removing dissolved gases and micro-bubbles, it is a core processing component within the solids control system.
    Principle and Role: The Drilling Mud Degasser utilizes negative pressure to create a vacuum environment within a sealed vessel. Based on Henry’s Law, dissolved gases are rapidly extracted from the mud. Through this forced degassing process, the density and rheological properties of the drilling fluid are fully restored, ensuring long-term stability of the liquid column pressure and improving the efficiency of downstream solids control equipment.
     
    The Well Control Lifeline in the Digital Drilling Era
     
    In modern drilling operations striving for "Zero Incidents," the synergy between the Mud Gas Separator for emergencies and the Drilling Mud Degasser for continuous optimization forms a complete double-insurance for well control safety. These are no longer optional accessories but the cornerstones of safety in the solids control system. The KOSUN Drilling Mud Degasser acts as the critical gate preventing gas cut from evolving into a blowout, offering irreplaceable strategic value in securing well control and preventing catastrophic losses.

  • KOSUN Liquid Mud Plant, Empowering Green Construction and Showcasing Intelligent Manufacturing Excellence

    In the modern engineering landscape where efficiency and environmental protection are paramount, traditional drilling mud treatment modes—characterized by large footprints, high energy consumption, and pollution risks—can no longer meet rigorous construction demands. KOSUN’s Liquid Mud Plant (LMP), with its integrated design of "Storage, Mixing, Purification, Circulation, and Solids Separation," redefines mud treatment standards as a high-efficiency, eco-friendly solution for the oil and petrochemical sectors.

     
    A Green Engine for Cost Reduction and Efficiency
     
    The core function of the LMP is to resolve traditional mud mixing and storage challenges while building a comprehensive treatment ecosystem. Rather than a simple storage unit, it is a large-scale integrated system (1,000m³+) that ensures stable storage while facilitating automated mixing, multi-stage purification, closed-loop circulation, and solids-liquid separation. Serving as the "Blood Supply Station" for drilling engineering, it covers the entire lifecycle of mud management for oil drilling and geological exploration.
    To adapt to diverse project scales and working conditions, KOSUN offers multiple capacities including 7500BBL, 15000BBL, 30000BBL, and 45000BBL. Its vertical tank layout reduces the footprint by over 40% compared to traditional horizontal or ground-level mud pits. Furthermore, KOSUN provides customized configurations, such as Oil-Based Mud (OBM) plants and Water-Based Mud (WBM) plants, to suit specific geological requirements.

     
    Dual Assurance, Green Construction and Safety Quality
     
    Environmental compliance and operational safety are the hallmarks of KOSUN's LMP mud system. The fully enclosed operation prevents leaks and spills, effectively protecting soil and groundwater. This helps enterprises achieve "Green Construction" and "Clean Production" targets while enhancing their corporate social responsibility profile. Meanwhile, stabilized mud performance ensures reliability for drilling and exploration, significantly improving borehole quality and construction efficiency—a true win-win for project quality and environmental benefits.

     
     Mud Tank Production: Plate Rolling & Fabrication

    The Foundation of Quality, Precision Control of Core Components
     
    The excellence of the LMP system stems from KOSUN’s robust in-house manufacturing capabilities. Utilizing advanced plate rolling machines, KOSUN processes tank bodies of various sizes with industry-leading precision. As the core equipment for fabricating tanks and structural supports, KOSUN’s plate rolling technology combines mass production with bespoke customization. By eliminating reliance on external processing, KOSUN controls component precision and strength from the source, ensuring superior sealing and structural stability—a testament to its integrated "R&D – Production – Sales" prowess.
    Today, KOSUN Liquid Mud Plants are widely deployed across the oil and petrochemical sectors, serving as a strategic partner for mud circulation projects worldwide. Through innovative technology and reliable products, KOSUN empowers customers to overcome drilling mud management challenges, seize market opportunities, and inject strong momentum into the green transformation of modern engineering.

  • Solid control system of ZJ70 drilling rig in Turkmenistan

    Project Background:

     

    Turkmenistan, as an important energy producer in Central Asia, has extremely high requirements for the reliability and environmental friendliness of drilling equipment in the

     development of its oil and gas resources. To meet the high-standard drilling demands of a large local oilfield, Xi 'an KOSUN has equipped the ZJ70 drilling rig with an efficient 

    and environmentally friendly solid control system, aiming to optimize the drilling fluid processing flow, enhance drilling efficiency and reduce waste emissions.

     

     

    Project Overview:

    Project location: An oil and gas field in Turkmenistan

     

     

    Drilling rig model: ZJ70 drilling rig

     

    Solid control system configuration: Five-stage purification system (including vibrating screen, desander, desilter, centrifuge, agitator, etc.)

     

     

    Processing capacity: Meets the circulation requirements of drilling fluid for a 7,000-meter deep well

     

    Technical highlights: Modular design, automatic control, environmental protection and energy conservation

     


     

     

    System Composition and Functions:

     

    Vibrating screen (primary purification) : High-frequency linear vibrating screen is adopted, with a processing capacity of ≥180m³/h. The mesh size of the screen is adjustable, 

    effectively separating drill cuttings larger than 74μm.

     

    Desander and desilter system (secondary/tertiary purification) : Cyclone group (desander + desilter) removes solid particles ranging from 15 to 74μm,

    reducing the density of drilling fluid.

     

    Centrifuge (four-stage purification) : High-speed horizontal screw centrifuge separates ultrafine particles of 2-10μm to control the viscosity and stability of drilling fluid.

     

    Auxiliary equipment: automatic dosing device, agitator, liquid level control system, to achieve real-time regulation of drilling fluid performance.

     

    Technological Innovation and Advantages:

     

    Strong adaptability: The system has been optimized for the high-temperature and sand-dust environment in Turkmenistan, and sunshades have been designed.

     

    Environmental compliance: The closed design reduces drilling fluid leakage, and the waste treatment complies with local environmental protection regulations.

     

    Intelligent management: PLC centralized control, real-time monitoring of parameters such as flow rate, density, and solid content, reducing manual intervention.

     

    Project outcome:

     

    Efficiency improvement: Solid phase clearance rate ≥95%, drilling fluid recovery and utilization rate increased by 30%, significantly reducing drilling costs.

     

    Customer review: The system operates stably, helping to increase the daily footage of the drilling rig by 15%, and has been highly recognized by the oilfield side.

     

    Industry demonstration: It became a benchmark case for the solid control system of deep well drilling in Turkmenistan and subsequently received orders for similar projects.

     

     

    The solid control system of the ZJ70 drilling rig in Turkmenistan has overcome the challenge of drilling fluid treatment in high-temperature environments through

     customized solid control solutions, demonstrating the technical strength and localized service capabilities of Chinese manufacturing, and providing reliable 

    support for the oil and gas development in Turkmenistan.

     

  • How Vacuum Degassers Extend the Service Life of Mud Pumps and Centrifuges

    Against the backdrop of the global drilling industry's pursuit of cost reduction and efficiency enhancement in 2026, minimizing Non-Productive Time (NPT) has become a core objective. Beyond controlling solids content, eliminating micro-bubbles from drilling fluids is critical to protecting expensive solids control assets and reducing maintenance expenditures. Pre-treatment via a Vacuum Degasser is, in essence, a high-yield investment in asset integrity.

     
    Microscopic Cavitation Damage to Precision Metal Surfaces
     
    When gas-cut mud enters centrifugal pumps or high-speed decanter centrifuges, it triggers destructive cavitation. As gas bubbles collapse abruptly in high-pressure zones, the resulting shockwaves repeatedly strike impellers and bearings. Originally smooth metal surfaces become pitted like honeycombs or suffer large-scale spalling, leading directly to the premature scrapping of core components.
     
    Hidden Costs of Volumetric Efficiency Loss and System Energy Consumption
     
    Due to the compressibility of gases, when a mud pump processes gas-entrained fluid, a portion of the power is absorbed by the gas compression process, severely compromising the pump’s volumetric efficiency. This phenomenon also leads to significant pressure fluctuations. Beyond reducing efficiency, the resulting violent vibrations are "silent killers" of high-pressure manifolds and sensors. By degassing, pump pressure fluctuations can be significantly stabilized, protecting consumables such as pistons, valves, and seats, effectively extending their replacement cycles.
     
    Performance Multipliers in Closed Loop Solids Control Systems
     
    The operational logic of modern solids control systems is interconnected. The presence of gas bubbles artificially inflates the apparent viscosity of the mud, making it thick and difficult to separate. Bubbles act like "glue," encapsulating fine sand particles and disrupting the stability of the centrifugal field inside hydrocyclones, which compromises the performance of desanders and desilters. As a critical intermediate link, the vacuum degasser ensures that downstream centrifuges achieve precise solid-liquid separation at high speeds by thoroughly eliminating entrained gas.
     
    Strategic Investment Driving OPEX Optimization
     
    The value of a vacuum degasser extends far beyond a single piece of equipment. It creates significant gross margin for drilling contractors by reducing the replacement frequency of expensive spare parts (such as pump fluid end modules and centrifuge drums) and compressing downtime caused by equipment failure. In the capital-intensive world of oilfield services, the vacuum degasser is an essential tool for achieving Equipment Life Cycle Management.