Month: October 2025

In oil drilling operations, the cleanliness of drilling fluid directly affects drilling efficiency, wellbore stability, and equipment lifespan. As drilling depth and complexity continue to increase, traditional desanders and desilters alone are often insufficient to meet the requirements for efficient purification. The mud cleaner, which integrates both desanding and desilting functions into a single unit, has become an indispensable component in modern solids control systems. Leveraging its in-depth research in drilling fluid solids control technology, Xi’an Kosun has accumulated extensive experience in the design, manufacturing, and application of cleaners, providing reliable purification solutions for global oil and gas drilling projects.

The primary function of a mud cleaner is to further remove medium-to-fine particles that shale shakers are unable to separate, typically with particle sizes between 20 and 74 microns. If these fine solids are not removed promptly, they can increase drilling fluid viscosity, cause density fluctuations, and consequently raise drill torque, accelerate wear, or even lead to stuck pipes and wellbore collapse, creating serious safety risks. By combining centrifugal separation with screening, the cleaner efficiently removes solid particles without altering mud properties, maintaining smooth flow and stability in the drilling fluid circulation system.

During operation, pre-treated drilling fluid first enters the hydrocyclone separation unit of the cleaner. The high-speed rotation generates centrifugal force, which forces the heavier solids outward. The separated upper liquid layer then passes through a fine mesh screen for secondary filtration, ensuring that the discharged fluid is even cleaner. Xi’an Kosun’s drilling fluid cleaners feature an optimized fluid dynamics design, with low flow resistance, high separation efficiency, and stable overall operation. Even under high solid-loading conditions, the equipment maintains continuous, high-efficiency purification.

Compared with single-function devices, drilling fluid cleaners offer significant advantages, including a compact structure, strong processing capacity, and ease of maintenance. They can substantially reduce the load on downstream centrifuges, decrease the overall energy consumption of the mud treatment system, and extend the service life of drilling fluid, ultimately lowering drilling costs at the source. By incorporating a modular design concept, Xi’an Kosun ensures that cleaners can flexibly integrate with different solids control system layouts, whether for onshore drilling or offshore platforms, providing easy installation, commissioning, and maintenance.

In addition, Xi’an Kosun has carried out comprehensive optimizations in material selection and manufacturing processes. The main body of the equipment is made of wear- and corrosion-resistant steel, while the hydrocyclones are constructed from high-performance polymer polyurethane, offering excellent impact resistance and extended wear life. The screen section uses high-strength stainless steel composite screens, ensuring long-term screening accuracy and stability. Some models are also equipped with intelligent monitoring systems, which can real-time monitor pressure, flow, and vibration, providing operators with accurate data support and further enhancing system safety and automation.

The stable operation of drilling fluid cleaners not only improves mud circulation purification efficiency but also effectively protects the wellbore, reduces drill bit wear, and extends equipment lifespan, thereby increasing drilling efficiency while lowering costs. With over 30 years of industry experience, Xi’an Kosun adheres to the philosophy of “quality as the foundation, innovation as the guide”, continuously optimizing product performance and improving after-sales services to provide efficient, environmentally friendly, and cost-effective drilling fluid cleaning solutions for global oilfield clients.

Looking forward, Xi’an Kosun will continue to focus on innovation in solids control technologies, helping the oil drilling industry move toward safer, more efficient, and greener operations.

In the mud circulation systems of oil drilling, the fluid treatment processes of chemical production, and even the wastewater purification workflows of the environmental industry, harmful gases hidden within fluids remain an “invisible hazard” that threatens production efficiency, product quality, and operational safety. As a core device for solving this issue, choosing the right vertical degasser not only significantly improves fluid purity but also ensures the stable operation of the entire production line.

Faced with a wide range of vertical degasser products on the market, how can enterprises make the right selection? With years of deep expertise and hands-on experience in industrial fluid treatment, Xi’an Kosun has summarized the key factors for accurate equipment selection.

The first step in selecting a vertical degasser is to align it closely with your actual fluid-handling requirements. Xi’an Kosun recommends first determining the maximum circulation capacity of your fluid (in cubic meters per hour or gallons per minute) to ensure that the degasser’s processing capability fully meets, or slightly exceeds, the real operational demand.

The drive motor, serving as the power source of a vertical degasser, directly affects the equipment’s operational stability and energy efficiency. Xi’an Kosun exercises strict quality control in motor selection, precisely matching the motor power to the degasser’s processing capacity for each model. This ensures sufficient power without overloading, while avoiding unnecessary energy waste caused by oversized motors.

Notably, Xi’an Kosun uses high-quality motors from leading industry brands, which feature low noise, excellent stability, and high energy efficiency. Over long-term operation, these advantages help significantly reduce energy consumption and overall operating costs for enterprises.

The layout of industrial sites is often complex and varied, making ease of installation an important factor when selecting equipment. Xi’an Kosun fully considers this requirement from the very beginning of its design process. The company’s vertical degassers feature a modular structure with a compact footprint and well-optimized layout, allowing for seamless integration into existing production systems. They can also be easily adapted to different site configurations, significantly reducing installation difficulty and construction time, enabling the equipment to be put into operation quickly and efficiently.

From demand matching to core components, from power systems to intelligent configurations, and from site adaptability to operational reliability, every selection detail impacts a company’s productivity and safety. As a specialized manufacturer dedicated to the R&D and production of industrial fluid treatment equipment, Xi’an Kosun remains customer-oriented, leveraging technological innovation and strict quality control to provide the oil drilling, chemical, and environmental protection industries with more efficient, durable, and intelligent vertical degasser solutions.

If you are still unsure about which vertical degasser best suits your needs, contact Xi’an Kosun today. Our professional technical team will provide one-on-one selection guidance, helping you choose with confidence and operate with peace of mind.

The vacuum degasser is a specialized solids control device used in oil and gas drilling to handle gas-contaminated drilling fluid. It is also known as a negative-pressure degasser or drilling fluid degasser.

In petroleum and natural gas drilling operations, gas intrusion into the drilling fluid is one of the critical factors affecting well control safety and operational efficiency. The vacuum degasser can rapidly remove various gases that have entered the drilling fluid, playing a vital role in restoring mud density and stabilizing mud properties. It is therefore an indispensable technical device for ensuring the safety of drilling operations.

1. Working Principle

The vacuum degasser operates based on Henry’s Law, which states that the solubility of a gas in a liquid is directly proportional to its partial pressure. The device establishes and maintains a negative-pressure environment within a sealed container, reducing the partial pressure of dissolved gases and forcing the gases to come out of the drilling fluid.

The working process can be divided into three key steps:

Establishing the Vacuum Environment:

A vacuum pump or ejector pump creates and maintains a stable negative-pressure state inside the degasser tank. This vacuum serves as the driving force for the entire separation process.

Gas–Liquid Separation Process:

Gas-contaminated drilling fluid is sucked into the tank under vacuum. It passes over specially designed umbrella plates or baffles, which spread the fluid into thin liquid films. During this process, dissolved gases rapidly come out of solution and expand, achieving efficient separation.

Orderly Discharge:

The separated gases are safely vented through the vacuum system, while the purified drilling fluid returns to the circulation system, restoring its density and regaining its functional properties.

2. Key Points for Selecting a Vacuum Degasser

Clarify Production Requirements

The first step in selecting a vacuum degasser model is to fully understand the specific production requirements. Key factors to consider include the characteristics of the drilling fluid, required processing capacity, and working environment conditions. Different production scenarios place varying demands on equipment performance, and accurate requirement analysis forms the foundation for proper selection.

Processing Capacity

Processing capacity is a decisive parameter for selection, referring to the cubic meters of drilling fluid the equipment can treat per hour. The rated capacity should exceed the maximum expected drilling fluid circulation rate and include a sufficient safety margin. Inadequate capacity may result in incomplete degassing, which can compromise well control safety.

Consider the Working Pressure Range

The working pressure range is an important factor affecting degassing efficiency. Different production processes have specific pressure requirements, and the selected equipment must be capable of operating within this range. Proper pressure settings are critical to achieving effective gas removal.

Evaluate Equipment Reliability

Focus on stability and durability during selection. Stable equipment ensures continuous and reliable operation, while durable equipment maintains performance over long-term use. Both factors directly impact production efficiency and operating costs.

Refer to Actual Application Feedback

Before finalizing a model, it is advisable to review its performance in real-world applications. Examining how the equipment operates under similar conditions and considering user feedback provides valuable insights to guide selection.

Recommended Selection Process:

Analyze well conditions → Determine processing requirements → Choose performance parameters → Optimize power configuration → Verify equipment quality

3. Engineering Application Value Analysis

In drilling engineering projects, deploying a vacuum degasser offers clear technical and economic benefits:

Enhancing Safety Levels: Serves as an active well-control measure, providing an additional reliable technical barrier for drilling operations.

Ensuring Operational Continuity: Reduces non-productive time caused by gas-contaminated drilling fluid, thereby improving overall drilling efficiency.

Optimizing Lifecycle Costs: Compared to potential costs from well-control incidents and production losses, investing in the equipment offers significant cost-effectiveness. The use of energy-saving technologies, such as ejector pumps, can further reduce operational energy consumption.

Conclusion

In drilling operations under deep, ultra-deep, and complex geological conditions, the vacuum degasser has evolved from an auxiliary device into a core piece of equipment for well-control safety. Its rigorous technical principles, reliable engineering design, and clear application value make it an indispensable component of modern drilling fluid purification systems.

As its application continues to expand, the vacuum degasser has surpassed the role of a single-function device, becoming a strategic element for ensuring drilling safety and enhancing operational efficiency. From conventional oil and gas exploration to unconventional resources such as geothermal and coalbed methane drilling, its ability to efficiently remove dissolved gases and stabilize drilling mud has become increasingly prominent.

Therefore, selecting a technically mature and reliable model based on specific operating conditions, and integrating it scientifically into the system, is not only a critical step in risk management and efficiency optimization for drilling projects, but also a key foundation for safe control of high-risk drilling operations and maximizing economic benefits.

In industrial fields such as oil drilling, shale gas development and mine exploration, the performance of drilling fluid (also known as mud) directly affects drilling efficiency, downhole safety and operation costs. The solids control system is precisely the core support system that ensures the continuous and stable operation of drilling fluid. As a professional enterprise deeply engaged in solid control equipment and system solutions, Xi ‘an Kosun, with years of industry experience, not only has a profound understanding of the technical essence of solid control systems, but also can tailor efficient and reliable solid control solutions for customers in different scenarios, helping the industry achieve green and efficient drilling operations. ​

In simple terms, a solids control system is a comprehensive equipment system that removes solid impurities (such as cuttings, sand grains, colloidal particles, etc.) from drilling fluid through classification separation and purification treatment, while recovering useful components (such as weighting agents, chemical treatment agents). During the drilling process, the drill bit breaks the formation rock, generating a large amount of cuttings. These cuttings circulate back to the surface with the drilling fluid. If not removed in time, it will lead to an increase in the viscosity and abnormal density of the drilling fluid, not only increasing the drilling torque and energy consumption, but also may cause safety hazards such as well gushing and well leakage, and even damage the drilling equipment. The core function of the solids control system is to “purify” the drilling fluid returning to the surface through scientific technological processes and professional equipment, restoring its performance to a state that meets the drilling requirements, achieving recycling and reuse. This not only reduces the waste of drilling fluid and lowers operation costs but also avoids environmental pollution caused by discarded drilling fluid, which is in line with the modern industrial green development concept.

​

A complete fixed control system is not merely the simple superposition of a single device, but is composed of multiple core devices and auxiliary facilities with complementary functions working in coordination. This is also the focus of Xi ‘an Kosun in system design and integration. From the perspective of the process, the drilling fluid first enters the vibrating screen, which serves as the “first line of defense”. Through the high-frequency vibrating screen, large rock cuttings with a particle size greater than 75μm are filtered out, initially reducing the solid content. Subsequently, the drilling fluid containing medium and fine particles enters the desander, where the sand impurities ranging from 44 to 75μm are removed by cyclone separation technology. Then, the desilter comes into play, focusing on handling fine solid phases ranging from 15 to 44μm, further enhancing the cleanliness of the drilling fluid. For ultrafine particles with a particle size less than 15μm and colloidal substances, a horizontal screw centrifuge is used to deeply separate them through the centrifugal force generated by high-speed rotation, and at the same time, valuable weighting materials such as barite are recovered. All kinds of equipment work closely together to form a complete closed loop of “hierarchical purification – recycling”. ​

In scenarios such as sludge dewatering and industrial wastewater treatment in the environmental protection field, solid control systems also play a significant role. Xi ‘an Kosun can customize dedicated solid control solutions based on the composition characteristics of different types of wastewater and sludge. Through equipment such as horizontal screw centrifuges, it can achieve efficient solid-liquid separation, helping environmental protection enterprises improve treatment efficiency and meet discharge standards.

​

With the continuous improvement of the industry’s requirements for drilling efficiency, safety and environmental protection, the importance of solids control systems has become increasingly prominent. As a professional service provider in the solid control field, Xi ‘an Kosun has always closely followed the technological development trend and constantly innovated its products and solutions. From single equipment supply to complete system integration, from the initial scheme design to the later operation and maintenance services, Xi ‘an Kosun provides customers with “one-stop” solid control services, helping them achieve efficient, safe and green production in drilling operations.

From energy development to mining, and then to construction and environmental protection treatment, Xi ‘an Kosun’s solids control systems always take scene requirements as the core. Through technological innovation and customized services, they provide efficient and reliable solids control support for customers in various industries. In the future, Xi ‘an Kosun will continue to focus on the field of solids control technology, providing more advanced systems and better services to safeguard the high-quality development of industries such as oil drilling.