KOSUN

作者： Kosun_com

  • Achieving 2μm Precision: How KOSUN High-G Decanting Centrifuge Optimizes Mud Recovery

    The Challenge of Fine Solids in Drilling
     
    In modern oilfield operations, the "invisible enemy" is colloidal solids. Particles smaller than 5 microns significantly increase plastic viscosity, leading to premature equipment wear. While a standard decanter centrifuge might struggle with ultra-fines, the KOSUN DC series decanting centrifuge is specifically engineered for this high-precision separation.

     
    The Power of 3000G Centrifugal Force
     
    Separation efficiency in any decanter centrifuge depends on G-force. By reaching rotation speeds up to 3,900 RPM, the KOSUN decanting centrifuge generates a continuous centrifugal force of 3,000G. This massive acceleration ensures that solids as small as 2μm are effectively removed. For operators using expensive Oil-Based Mud (OBM), this decanting centrifuge ensures a much higher recovery rate, maintaining a cleaner active mud system and reducing total well costs.
     
    The "Long Beach" Advantage for Drier Solids
     
    A key differentiator of the KOSUN decanter centrifuge is its unique "Long Beach" area design. By extending the residence time of solids in the drying zone of the bowl, this decanting centrifuge ensures that discharged cuttings carry minimal liquid.
    Drier Cuttings: Lowers waste disposal and transportation costs.
    Maximum Fluid Recovery: Returns high-value drilling fluids back to the system immediately.
     
    With a superior length-to-diameter ratio and high-speed stability, the KOSUN decanter centrifuge is more than just waste processing equipment—it is a precision tool for fluid asset management. Investing in a high-performance decanting centrifuge is the most direct path to increasing your Rate of Penetration (ROP).
     

  • Customized Hot Dip Galvanizing KOSUN Dual Motion Shale Shaker Advantages

    In oil and gas drilling and trenchless (HDD) projects, how to achieve rapid ROP in high-volume formations while ensuring cuttings dryness in complex strata? This has long been a challenge for Solids Control Engineers. As a global leading manufacturer, KOSUN has introduced the Dual-Motion Shale Shaker. With its innovative "Dual-Mode" design, it is becoming a high-performance benchmark in the market.
     
    I. What is a Dual Motion Shale Shaker
     
    Traditional linear motion shakers offer fast discharge but are prone to "screen blinding" in sticky formations, while balanced elliptical motion shakers provide fine separation but lack sufficient handling capacity in high-flow conditions.
     
    KOSUN’ s Dual-Motion Shale Shaker merges the field-proven advantages of both through structural optimization:
     
    Linear Motion Mode: Provides a high G-force of up to 7.4G. Primarily used for surface drilling or high-flow conditions, ensuring large-particle solids are rapidly discharged to prevent mud accumulation at the wellhead.
    Balanced Elliptical Motion Mode: By shifting the dynamic balance of excitation, the material moves in an elliptical path on the screen. This extends the retention time of the drilling fluid to maximize recovery, effectively reduces screen wear, and prevents blinding.

     
    II. KOSUN Dual Motion Shale Shaker with Special Hot-Dip Galvanizing Process
     
    Engineered for coastal and high salt-mist corrosive environments, KOSUN has developed a Customized Galvanized Dual-Motion Shale Shaker. This model achieves a breakthrough in both anti-corrosion performance and industrial aesthetics:
     
    Ultimate Corrosion Resistance against Salt Mist: The entire unit utilizes a special hot-dip galvanizing process, ensuring an exceptionally high bond between the zinc layer and the metal substrate. Compared to traditional painting, this process ensures tight adhesion in internal areas and corners. The zinc coating is of optimal thickness and resistant to peeling, significantly extending the equipment's service life in coastal and corrosive gas environments.
    Innovative and Aesthetic Design: The galvanized coating grants the equipment a unique metallic texture. The modern, high-tech appearance not only enhances the professional image of the job site but also reflects KOSUN’ s deep expertise in meeting customized requirements.
     
    III. Core Technology and International Competitive Advantages of KOSUN Shale Shakers
     
    In competition with first-tier international brands, KOSUN demonstrates differentiated competitiveness by focusing on "High Reliability":
     
    Proven AWD Screen Box Adjustment System: This patented synchronized adjustment mechanism allows for deck angle changes from -1° to +5° without downtime. Field-tested for years, this system offers excellent mechanical synchronization, optimizing treatment effects based on mud tank levels. It is far more impact-resistant than electronic actuators.
    Superior Maintenance Convenience: Compared to models relying on precision electronic sensors, KOSUN utilizes a robust mechanical switching mechanism. It has an extremely low failure rate in remote or extreme environments. Routine maintenance can be performed by general mechanics, significantly reducing NPT (Non-Productive Time).
     
    IV. Shale Shaker Application as the First Gate of Drilling Cuttings Management System
     
    As the source of Drilling Waste Management, the KOSUN Dual-Motion Shale Shaker significantly reduces the moisture content of waste cuttings.
    Reducing Downstream Load: High-efficiency separation directly alleviates the operating pressure on downstream Vertical Cuttings Dryers and solidification units.
    Supporting Environmental Compliance: Drier discharge achieved through motion optimization is a key link in reaching "Green Drilling" and Zero-Discharge goals, particularly in environmentally sensitive operation zones.

  • Get to Know Decanter Centrifuges

    The decanter centrifuge is an indispensable core equipment in the fields of drilling engineering and waste treatment.KOSUN DC series decanter centrifuge, with its excellent performance, has become the preferred choice in the industry, fully meeting the needs of various working conditions. Its core application is mainly used for solid control in drilling engineering, and it can also efficiently treat various wastes, realizing the dual value of resource recovery and environmental protection treatment, and escorting the improvement of construction quality and efficiency.

     
    Decanter centrifuges     are mainly divided into two types: fixed-speed centrifuges and variable-frequency centrifuges. Among them, the low-speed centrifuge focuses on barite recovery, helping to recycle resources and reduce construction costs; the high-speed centrifuge can accurately separate solid particles with a diameter of more than 2 microns, with high screening accuracy, effectively ensuring the purity of drilling fluid and providing support for the smooth progress of drilling engineering. The two types flexibly adapt to different construction scenarios.
     
    The DC series decanter centrifuges of KOSUN has prominent features and advantages, demonstrating professional strength. The innovative long drum design extends the residence time of drilling fluid in the drum, enabling drier solids and more precise separation effect; it is equipped with a corrosion-resistant and wear-resistant drum, and the slag discharge port of the cone drum is equipped with a quickly replaceable cemented carbide sleeve, combined with a screw propeller with a tungsten carbide wear-resistant layer on the slag discharge surface, which is wear-resistant and durable, extending the service life of the equipment. At the same time, it adopts German FAG or Swedish SKF brand bearings, and the electrical components comply with international explosion-proof standards, ensuring stable and safe operation; it is equipped with screw pumps and submersible slurry pumps, which can meet the feeding needs of centrifuges for different customers, fully adapt to various working conditions, and become a trusted choice in the industry with high cost performance.

  • The Working Principle of HDD Mud Recycling System

    The core principle of the HDD mud recycling system is to combine solid control with mud mixing to realize the cyclic reuse of mud, which not only reduces construction costs but also meets environmental protection requirements. The working process of the HDD mud recycling system is clear and efficient: firstly, purify the mud returned from horizontal directional drilling, separate large-particle drill cuttings through equipment such as shaker screens and desanding cyclones; then add mud materials through the mud mixing device and stir them evenly to make the mud meet the reuse standard; finally, pump the mud back to the directional drilling system through the mud pump to complete the cyclic reuse. The core is to realize the closed-loop operation of solid-liquid separation and mud regeneration
     
    The differences among the four core models of KOSUN Machinery are mainly to adapt to different working conditions: the KSMR-200 model (≤200GPM) adopts the LS2•752 double-layer linear shaker screen, with an integrated design and small volume, suitable for small processing capacity scenarios; the KSMR-350 model (≤350GPM) is equipped with the LS608 double-layer screen shaker, which can realize two-stage screening with one machine, balancing convenience and processing efficiency; the KSMR-500 model (≤500GPM) adopts a three-stage purification process and is equipped with an underflow screen to deepen solid-phase treatment, suitable for medium and large-scale mud volume construction; the KSMR-1000 model (≤1000GPM) is equipped with two shaker screens and multiple sets of cyclones, with three-stage purification, suitable for construction with extremely large mud volume.


    KOSUN KSMR500

    KOSUN KSMR1000

     
    The HDD mud recycling system is widely used in non-excavation horizontal directional drilling projects, including urban underground pipeline laying, oil and gas pipeline crossing and other scenarios, and is also suitable for coalbed methane extraction construction. Corresponding models can be selected according to different construction scales, site space and mud processing capacity to achieve efficient purification and cyclic reuse, which not only improves drilling speed but also practices the concept of green construction, adapting to various complex construction environments.

  • We invite you to the Australian Petroleum Exhibition

    About the exhibition

    Energy Exchange Australia (EXA) is Australia's largest oil and gas exhibition. It is organized by Dversified Australia and receives strong support from the Australian Department of Minerals and Energy.
    EXA, held for over 40 years, is a major global event for the oil, gas, and energy industry. It is also the best platform for Chinese companies to enter the Australian market and explore cooperation potential. The exhibition attracts professionals from oil and gas companies, energy suppliers, technology service providers, and related enterprises worldwide. The previous exhibition covered 20,000 square meters, with 423 exhibitors from China, the United States, Mexico, Brazil, Chile, Poland, Russia, New Zealand, India, Dubai, and other countries, attracting 24,562 attendees.

    Market Background 

    The current Australian energy and mining market presents significant opportunities: as the energy gateway to the Asia-Pacific region, Australia connects to Asia's vast energy demand market, and the government provides substantial subsidies and tax incentives for low-carbon technologies such as CCUS and hydrogen energy; at the same time, local industries face the challenge of rising operating costs and urgently need high-quality Chinese equipment and technology solutions. This exhibition presents a crucial opportunity for Chinese enterprises to move from "product export" to "brand establishment."
     
     

    Exhibited products

    HDD Mud Recovery System

     
    Artificial intelligence and big data technologies have become major hot topics in recent years, and discussions about AI have never ceased. How will this industry develop in the future, and what benefits will it bring to human production and life? Which industries can seamlessly utilize artificial intelligence? Let's wait and see!

    Solids Control Systems

    Solids control systems typically consist of 3-7 mud tanks and are equipped with 5-stage solids control, chemical dosing, and weighting equipment to meet the needs of drilling rigs ranging from 250HP to 3000HP.

     

    OBM Drilling Cuttings Waste Treatment

    Oil-based drilling mud non-landing systems, also known as cuttings non-landing systems or drill cuttings non-landing systems, mainly consist of a cuttings dryer, a high-speed variable frequency centrifuge, a skid-mounted integrated tank, a submersible slurry pump, a mixer, a screw conveyor, and cuttings boxes. It combines process technology with equipment to achieve non-landing disposal of waste drilling mud during drilling, eliminating the need for drilling teams to dig mud pits, significantly saving resources and reducing drilling costs.

    WBM Drilling Cuttings Waste Treatment

     
    water-based drilling cuttings waste treatment can recycle and treat drilling fluid waste, reduce processing costs, recover useful mud or water, achieve resource reuse, avoid environmental pollution from waste, and meet local government regulations on environmentally friendly waste discharge requirements.
     

    Mining Drilling Mud Treatment System

     
    In the mining industry, mining drilling mud treatment systems utilize core equipment such as vibrating screens, centrifuges, mixing devices, mud tanks, sand pumps, and screw conveyors to achieve efficient mud purification and circulation. This precise treatment of mud containing rock powder and slag during mining operations not only deeply purifies the mud and improves the accuracy of core sampling, providing reliable data for resource exploration, but also effectively ensures drilling efficiency and wellbore stability, guaranteeing continuous mining operations.
     
    More importantly, the efficient separation and treatment of slag significantly reduces the risk of soil and groundwater pollution from harmful substances in the mud, strictly complying with environmental protection requirements.
     
    Application areas: Iron ore, copper ore, coal mines, limestone mines, etc.

    Oily Sludge Treatment System

     
    The oily sludge treatment system mainly addresses the treatment of waste oily sludge generated during drilling, and the oil content in the solid phase after treatment can reach <1%.

    Slurry Separation System

     
    The slurry separation system is a specialized mud treatment equipment developed by our company. It is suitable for the purification of mud in projects such as mud-water balance shield tunneling, diaphragm walls, and pile foundations using circulating drilling technology. Using this system helps control mud performance, enhance borehole quality and efficiency, fully support and ensure the safe and smooth operation of tunneling equipment, and improve the recycling and reuse of mud. It not only saves construction costs but also reduces mud discharge and environmental pollution, making it an essential piece of equipment for economical, efficient, and environmentally friendly construction.

  • The Hidden Cost of Solids Control Efficiency: Is Poor Cuttings Management Eroding Your Drilling Budget?

    In an era of intensifying pressure on E&P CAPEX and OPEX, the stability of drilling fluid performance is directly tied to operational efficiency and project profitability. However, a frequently underestimated risk is the insidious accumulation of fine solids within the active system. When solids control fails, it doesn't just degrade mud rheology—it erodes the budget through material wastage, accelerated equipment wear, and Non-Productive Time (NPT). The root of the problem often lies not in the mud chemistry itself, but in the efficiency of the solids control system.
     
    The “Dilution Trap”: A Costly Consequence of LGS Buildup
     
    During drilling, the mechanical shearing of cuttings generates a high volume of ultra-fine particles, known as Low-Gravity Solids (LGS). According to IADC technical guidelines, the uncontrolled buildup of LGS is the primary catalyst for drilling fluid failure.
     
    When separation efficiency drops, operators often fall into the "Dilution Trap":
    Material Wastage: To maintain target rheology and density, operators are forced to "bleed and feed"—discarding volume-heavy active mud and replacing it with expensive new premix. This leads to the massive loss of barite, polymers, and base oils.
    The Multiplier Effect: Industry practice demonstrates that a minor decrease in solids control efficiency can lead to a disproportionate spike in chemical consumption. This non-linear cost escalation turns technical oversights into significant budget overruns.
    Invisible Wear: Fine particles act as abrasives, drastically accelerating wear on drill bits, downhole tools, and mud pump fluid ends. The resulting NPT and premature spare parts replacement are the silent killers of drilling budgets.
     
    From Liability to Asset: The ROI of High-Efficiency Separation
     
    A well-engineered solids control system is essentially a physical separation plant designed for closed-loop fluid management. Adhering to API RP 13C standards, modern high-efficiency systems can recover the vast majority of base fluids from cuttings. This shift delivers dual financial benefits:
     
    OPEX Reduction: By optimizing the synergy between high-G linear motion shakers and high-speed decanter centrifuges, the demand for new fluid formulation is slashed.
    Waste Minimization: With global environmental regulations tightening, the cost of "cuttings hauling and disposal" has become a major line item. High-efficiency on-site management reduces waste volume at the source, transforming a disposal liability into a reusable resource.

     
     
    The Economic Value of KOSUN’s OBM Cuttings Management System
     
    As a specialized leader with over 30 years of industry expertise, Xi’an KOSUN has been solving the toughest fluid processing challenges since 1992. Specifically engineered for Oil-Based Mud (OBM) recovery and waste minimization, KOSUN’s integrated solutions have become the preferred choice for flagship projects worldwide.
     
    Core Advantages of KOSUN Solids Control & Drilling Waste Management Solutions
    Precision Recovery: Through the integrated application of Vertical Cuttings Dryers (VCD) and high-speed centrifuges, KOSUN systems consistently reduce Oil on Cuttings (OOC) to ≤5%, meeting the most stringent international discharge standards.
    Value Extraction: Every barrel of oil reclaimed from waste is a barrel that doesn't need to be purchased. For high-tier synthetic or oil-based systems, this recovery alone provides a rapid ROI on the equipment.
    Modular Agility: The highly modular design significantly reduces mobilization/demobilization time and logistical expenditures—a critical economic factor in remote or cross-border operations.
     
    In the current energy landscape, true competitiveness stems from granular cost control. Modern solids control is no longer an "optional" add-on; it is a core strategic tool for maximizing project margins. KOSUN continues to empower global operators to merge environmental compliance with superior economic performance through expert-grade process engineering.
     

  • KOSUN VC700 Vertical Cuttings Dryer: Advanced Cuttings Dryer for Drilling Waste Management

    In modern drilling operations, the VC700 Vertical Cuttings Dryer from Xi'an KOSUN Machinery Co., Ltd. stands as a critical solution for managing wet solids. By utilizing high-speed centrifugal separation, this cuttings dryer extracts valuable liquid-phase drilling fluids from waste, effectively reducing costs and meeting environmental discharge standards.
     
    Strategic Role of the Vertical Cuttings Dryer
     
    As a pivotal unit in secondary solids control, the vertical cuttings dryer is essential for achieving "Zero Discharge" goals. It addresses two primary challenges in the field:
    Fluid Recovery: The cuttings dryer utilizes high G-force to separate adhering oil-based mud (OBM) from solid waste.
    Waste Minimization: By drying the solids, the vertical cuttings dryer significantly reduces the total volume and weight of waste for disposal.
    Cost Efficiency: Reclaimed drilling fluid is returned to the active system, drastically lowering the need for expensive new mud purchases.

     
    Technical Advantages of the VC700 Cuttings Dryer
     
    The KOSUN VC700 vertical cuttings dryer is engineered for high performance in demanding environments through several key innovations:
    Exceptional Separation Efficiency: Specifically designed for OBM recovery, this cuttings dryer maintains an Oil-on-Cuttings (OOC) level below 3%, ensuring compliance with international regulations.
    Durable Wear Resistance: The rotor flights of the vertical cuttings dryer are protected by tungsten carbide coatings, extending the service life of components under abrasive conditions.
    Maintenance-Friendly Design: Key parts can be accessed and replaced from the top of the cuttings dryer, minimizing operational downtime and labor costs during rig movements.
     
    Application Scenarios for Vertical Cuttings Dryer Technology
     
    The versatility of the VC700 vertical cuttings dryer makes it suitable for various drilling waste management configurations:
    Onshore Drilling: Ideal for closed-loop systems where environmental footprint must be minimized.
    Offshore Platforms: The compact and efficient design of this cuttings dryer saves valuable space while maximizing fluid recovery.
    Complex Formations: Performs reliably even when dealing with high-gravity solids and high-viscosity drilling fluids.
     
    The Value of the KOSUN Cuttings Dryer
     
    The KOSUN VC700 Vertical Cuttings Dryer combines mature centrifugal technology with practical field-proven design. As a high-capacity cuttings dryer, it provides operators with a reliable method to balance environmental responsibility with economic performance. For any modern solids control setup, this vertical cuttings dryer is the definitive choice for maximizing ROI.

  • KOSUN Machinery to Showcase Cutting-Edge Energy Solutions at Energy Exchange Australia 2026

    Xi'an KOSUN Machinery Co., Ltd., a global leader in solids control and drilling waste management, is proud to announce its participation in the upcoming Energy Exchange Australia (EXA), taking place from March 10-12, 2026, at the Perth Convention & Exhibition Centre.
     
    As a premier event for the Australasian energy industry, Energy Exchange Australia brings together global innovators and industry leaders. KOSUN will be exhibiting at Stand Number: N4, presenting its latest advancements in green technology and high-performance engineering tailored for the Australasian market.
     
    Innovating for a Greener Energy Future
     
    At the heart of KOSUN’s exhibition will be its comprehensive suite of solutions designed to meet the rigorous environmental and operational standards of modern drilling. Key highlights include:
     
    Advanced Solids Control: Showcasing the KSMR500 and other high-efficiency modular systems for superior mud recycling.
     
    Integrated Waste Management: Demonstrating "Zero-Discharge" and closed-loop systems that maximize resource recovery and minimize environmental impact.
     
    HDD & Mining Solutions: Offering specialized, high-durability purification equipment designed for trenchless construction and mining operations.
     
    Strengthening Global Partnerships
    Australia remains a strategic pillar in KOSUN’s global expansion. "We are excited to connect with our partners and clients in Perth," stated a representative from KOSUN. "Participating in EXA 2026 allows us to showcase not only our flagship machinery but also our commitment to 'Made in China' excellence. Our goal is to provide the Australian energy sector with sustainable, low-carbon, and intelligent processing solutions that drive operational efficiency."
     
    Event At-A-Glance
    Event: Energy Exchange Australia 2026
    Date: March 10 – March 12, 2026
    Venue: Perth Convention & Exhibition Centre
    KOSUN Stand: N4
     
    KOSUN Machinery cordially invites all industry professionals, partners, and media representatives to visit Stand N4 to explore the future of sustainable energy development.

  • Working principle and core functions of the vertical dryer

    In modern petroleum drilling engineering, as environmental regulations become increasingly stringent, the effective treatment of oily drill cuttings has become a focal point. As the core equipment of the drilling waste management system, the vertical dryer has become the key to achieving mud recovery and waste reduction through its superior solid-liquid separation performance.

    vertical-dryer-working-principle

    Definition and application scenarios of vertical dryer

    A vertical dryer is primarily used to treat cuttings generated during drilling processes using oil-based mud (OBM) or synthetic-based mud (SBM). Its core objective is to strip and recover the liquid adhering to the surface of the cuttings using the immense centrifugal force generated by high-speed rotation. This process achieves solid-liquid separation, resulting in drier solids and a significantly reduced oil content on the waste.

    Detailed working principle of vertical cutting dryer

    Feeding and acceleration: Oily drill cuttings are fed into the top inlet of the vertical cutting dryer via conveying equipment such as a screw conveyor. Upon entering the equipment, the cuttings drop into the center of the high-speed rotating basket.
    Centrifugal separation: The rotor of the vertical dryer rotates at high speeds, generating a centrifugal force typically ranging from 300G to 900G. Under this intense force, the oil-based liquid passes through the screen gaps and enters the collection tank, while solid particles are retained on the inner side of the screen.
    Mechanical scraping: To prevent solids from clogging the screen, the vertical dryer features internal rotating scrapers. There is a slight speed differential between the scrapers and the screen basket, which allows the dried solids to be scraped off and move toward the discharge outlet at the bottom.
    Liquid recovery: The expelled liquid is discharged through the liquid outlet. Typically, the liquid recovered by the vertical dryer is sent to a downstream decanter centrifuge for further purification before being reintroduced into the active mud system for reuse.

    Key technical parameters of vertical decanter centrifuge

    To achieve optimal treatment results under the latest environmental standards, the following parameters of the vertical dryer are critical:
    Screen gap: Typically selected based on the geological formation and lithology.
    Centrifugal force: Higher rotational speeds yield better dehydration, but place higher demands on the equipment’s balance and wear resistance.
    Scraper durability: Since drill cuttings are highly abrasive, high-performance vertical dryer scrapers are usually reinforced with tungsten carbide or other hard alloys to extend their service life.

    Through efficient physical separation, the vertical dryer not only solves environmental discharge challenges in oilfield operations but also saves drilling contractors significant material costs through high-ratio mud recovery.

  • Drilling Mud Agitator Design: Industrial Application & Selection Guide

    In modern solids control processes, fluid stability within the tank directly impacts the safety and efficiency of downhole operations. A professional Mud Agitator is a critical component designed to maintain complex hydrodynamic balance and ensure the stability of the drilling "blood."
     

    In-depth Functional Analysis of Mud Mixer
     
    Dynamic Suspension of High-Density Solids: As a high-performance drilling mud agitator, its primary task is to manage fluids with densities up to 20 ppg (2.4 g/cm³). The agitator’s powerful torque generates continuous axial and radial flow fields, preventing weighting agents like barite from settling in tank corners and effectively mitigating the risks of Barite Sag.
     
    Rheological Maintenance and Shear Fluidization: The shear force generated by a mud tank agitator rapidly breaks down polymer clusters, preventing "fish-eyes." Continuous agitation ensures that viscosity and gel strength remain within ideal ranges, facilitating the uniform distribution of chemical additives.
     
    Synergistic Degassing and Thermal Management: These agitators for mud tanks promote continuous surface renewal, aiding in the release of entrained formation gases and enhancing heat exchange between the mud and the environment, protecting downstream pumps from cavitation.
     
    Engineering Advantages of the KOSUN MA Series Mud Agitator
     
    The KOSUN MA series Mud Agitator is recognized for its proven reliability in field operations. KOSUN mud mixers features a mature worm gear reduction design that provides high torque output with excellent self-locking stability. With modular configurations from 2.2 kW to 22 kW, the KOSUN Mud Agitator ensures consistent performance across various complex operational scenarios. Through its compact design and high durability, this mud mixer delivers efficient circulation while significantly reducing maintenance frequency and overall operating costs.