As hydrovac excavation continues to expand across global markets, efficient slurry management has become a critical operational requirement. Hydrovac trucks generate large volumes of water-soil mixtures that must be processed, dewatered, and disposed of in a cost-effective and environmentally compliant manner. To help contractors reduce disposal costs, recover reusable water, and minimize downtime, GN Solids Control has delivered its GNLW454GT Mud Dewatering Centrifuge, designed specifically for hydrovac slurry treatment applications.

The GNLW454GT is a high-capacity, 18-inch bowl decanter centrifuge, engineered to handle fine solids separation while maintaining continuous and stable operation. Hydrovac waste typically consists of fine clay, silt, sand, and suspended solids with varying densities. These characteristics require a centrifuge with strong torque output, precise control of differential speed, and high G-force to achieve effective liquid-solids separation. The 454GT meets these challenges through its enhanced torque gearbox, wear-resistant bowl design, and optimized scroll geometry.

One of the major advantages of using the GNLW454GT in hydrovac slurry treatment is its ability to significantly reduce the volume of liquid waste, producing a drier solids discharge. The dryer the solids, the lower the disposal cost—and for many hydrovac contractors, disposal fees represent the largest operating expense. With the GN centrifuge, customers have reported substantial reductions in the number of truckloads sent to disposal sites, improving both operational efficiency and profitability.
In addition to solids reduction, the centrifuge produces clearer effluent water, which can be reused on site for hydrovac operations or discharged according to local environmental regulations. This not only minimizes fresh water consumption but also supports more sustainable jobsite practices.

The GNLW454GT is built with robust, industry-proven materials, including tungsten carbide wear protection on the scroll, tiles along the bowl inner surface, and an abrasion-resistant feeding system. All components are designed to withstand the highly erosive nature of hydrovac slurry, ensuring long service life and reduced maintenance frequency. The machine is available with either VFD control or fixed-speed operation, with the VFD package allowing operators to adjust bowl speed, differential speed, and feed rate in real time to achieve optimal performance under changing conditions.

For mobile jobsite requirements, GN also provides skid-mounted or containerized system options, integrating pumps, polymer dosing units, and control panels into a compact processing unit. This allows the GNLW454GT centrifuge to be deployed at transfer stations, hydrovac dumping facilities, recycling centers, or directly at project sites.

With decades of experience in solids control and separation technology, GN Solids Control continues to support customers in the hydrovac, tunneling, construction, mining, and drilling sectors worldwide. The successful deployment of the GNLW454GT Mud Dewatering Centrifuge demonstrates GN’s commitment to offering reliable, efficient, and field-proven solutions for demanding slurry management applications.

GN Solids Control is pleased to announce the successful delivery of a complete solids control package to a European drilling contractor operating a 2000HP drilling rig. This latest shipment includes three GNZS594K high-performance shale shakers, one GNZJ594K-3S16N mud cleaner, one GNZCQ360 vacuum degasser, and one GNLW363D decanter centrifuge. The package forms a fully integrated solution designed to optimize drilling fluid quality, improve solids removal efficiency, and support overall rig performance in demanding drilling environments.

At the front end of the system, the three GNZS594K shale shakers handle the primary solids removal duty. The GNZS594K is GN’s flagship linear-motion shaker, equipped with a large 4-panel screen deck and engineered for high G-force vibration. The unit ensures effective separation of cuttings and protects downstream equipment by reducing solid loading. With quick-change screen technology, composite frame screens, and a robust mechanical structure, the GNZS594K provides the durability and efficiency required for 24/7 rig operations.

To further enhance solids control, the package includes one GNZJ594K-3S16N mud cleaner, an integrated unit combining a high-capacity shale shaker with 3 × 10-inch desander cones and 16 × 4-inch desilter cones. This three-stage separation system removes both sand-size and silt-size solids to maintain the drilling mud within the required parameters. By integrating hydrocyclone separation with fine-screen drying, the mud cleaner minimizes waste volume and reduces dilution costs for the rig operator.

Gas entrainment in drilling fluids can lead to pump cavitation, reduced mud density, and safety risks. To address this, GN supplied one GNZCQ360 vacuum degasser, designed specifically for high-capacity drilling rigs. The unit effectively removes entrapped gas from the drilling fluid without disturbing the mud properties. Featuring a belt-driven structure, stainless-steel components, and a maintenance-friendly design, the GNZCQ360 ensures stable mud density and protects the operation of centrifugal pumps and mud mixing equipment.

Completing the solids control line is the GNLW363D decanter centrifuge, one of GN’s most widely used models for barite recovery and fine-solids management. With a 14-inch bowl and a high-speed capability, the centrifuge efficiently removes low-gravity solids while allowing valuable barite to be reused. The GNLW363D provides consistent performance, simplified maintenance, and reliable operation under varying drilling conditions.

This package represents GN’s commitment to supporting global drilling contractors with advanced, field-proven solids control equipment. For operators in Europe, where environmental compliance, efficiency, and operational reliability are top priorities, GN provides a balanced solution that enhances mud quality, reduces waste, and helps lower overall drilling costs.

GN Solids Control continues to expand its footprint in the European oil and gas market by delivering reliable equipment solutions backed by professional service, fast delivery, and comprehensive technical support.

GN Solids Control has successfully delivered two complete 1000GPM HDD mud cleaning systems to a valued customer in Australia. These systems are designed to provide efficient drilling fluid recycling and solids separation for horizontal directional drilling (HDD) and other trenchless construction projects. With GN’s proven technology and modular design, the systems ensure cleaner drilling mud, reduced environmental impact, and improved project efficiency.

Each 1000GPM system consists of a 11.5-meter mud tank, two double-layer shale shakers, two 10-inch desander cyclones, ten 5-inch desilter cyclones, three centrifugal pumps, one jet mud mixing hopper, and one mud agitator. Together, these components form a compact, complete, and efficient mud recycling package capable of handling high mud volumes while maintaining consistent performance.

The dual-deck shale shakers serve as the first stage of solids control, effectively removing large and medium-sized particles from the drilling mud. The upper deck handles coarse solids, while the lower deck processes finer materials, maximizing solids removal efficiency. Equipped with GN’s high-quality composite frame shaker screens, the units ensure long life, easy maintenance, and fast screen replacement.

The desander and desilter cyclones represent the second and third separation stages. Made of wear-resistant polyurethane, the two 10-inch desander cones remove particles down to 45 microns, while the ten 5-inch desilter cones capture solids as fine as 20 microns. This multi-stage design guarantees a stable mud quality that meets the requirements of modern HDD operations.

The centrifugal pumps supplied with the system are GN’s GNSB series, known for their compact structure, high efficiency, and interchangeability with international brands. These pumps are used for both feeding the cyclones and mixing drilling fluids through the jet mud mixing system, which includes a venturi hopper to add bentonite or other additives efficiently.

All equipment is mounted on a heavy-duty mud tank with integrated walkways, ladders, and handrails for safe and easy access. The tank is coated with an anti-corrosion epoxy finish, ensuring long service life under harsh job site conditions.
The successful delivery of these two 1000GPM HDD mud cleaning systems once again highlights GN Solids Control’s expertise in providing turnkey trenchless mud treatment solutions. With years of experience and a strong presence in global HDD markets, GN continues to support customers with reliable, cost-effective, and environmentally responsible solids control equipment.
For more details about GN’s HDD mud recycling systems, please feel free to contact us.

GN Solids Control is proud to announce the successful delivery of multiple K Series shale shakers to a reputable oilfield service company in the Middle East. This project once again reinforces GN’s strong presence in the region and demonstrates our capability to provide high-efficiency solids control equipment for demanding drilling environments.
The GN K Series shale shaker, specially engineered for oil & gas drilling rigs, plays a critical role in the first-stage separation of drilling fluids. By efficiently removing large cuttings from the drilling mud, the unit helps maintain optimal mud properties, reduces wear on downstream equipment, and significantly lowers overall drilling costs.

🌟 Key Advantages of GN K Series Shale Shaker
✅ High G-force Linear Motion Design
Up to 7.5G vibration strength ensures excellent separation efficiency even with high-viscosity drilling mud.
✅ Quick Screen Replacement System
Wedge-locking technology allows fast and safe screen installation, minimizing rig downtime.
✅ API RP 13C Compliant Screens
GN’s own premium composite screens provide longer lifespan and higher conductance, improving total solids removal performance.
✅ Flexible Flow Capacity for Different Rig Sizes
Models like GNZS594K or GNZS703K are available to match drilling rigs from 1000HP to 3000HP.
✅ Use of International Brands for Key Components
Vibration motors and electrical components can be ATEX / IECEx certified for hazardous operating areas.

🛠 Designed for Harsh Middle East Conditions
Middle Eastern drilling fields are known for:
• High ambient temperatures
• Abrasive drilling formations
• Strict reliability requirements
GN K Series shale shakers are built with:
• Heat-resistant paint and corrosion protection
• Rugged structural design for extended service life
• Optional offshore skid package for platform rigs
These units have been fully tested before shipment to ensure a trouble-free installation and smooth commissioning.

✅ Result: Improved Mud Recycling & Lower Cost
After integration into the customer’s solids control system, the GN shakers are expected to:
• Enhance mud quality and drilling efficiency
• Reduce disposal volume and transportation cost
• Extend the lifecycle of downstream centrifuges and pumps

📌 Conclusion
The successful deployment of the GN K Series shale shaker showcases our continuous effort in supporting Middle East energy development. GN Solids Control will keep delivering innovative separation solutions, professional technical support, and fast local service to global partners.
For more details about shale shaker solutions or onsite support — GN is always here to help.

GN Solids Control has successfully delivered eight sets of GN Jet Mud Mixing Hopper Units to a valued client in Europe. These systems will be used to support various drilling and mud preparation projects, ensuring precise and efficient mixing of drilling fluids for stable drilling operations.

Each mud mixing package includes a GNSB8×6 centrifugal pump (90kW), a venturi mud mixing hopper, and a heavy-duty skid base. The system is designed for rapid and homogeneous mixing of bentonite, barite, and other drilling additives into the active mud system, ensuring proper fluid properties for both onshore and offshore drilling applications.
The GNSB8×6 centrifugal pump serves as the power source for the jet mixing process. Built with wear-resistant materials and a compact design, the pump ensures long service life and easy maintenance. Its high flow rate and stable pressure performance make it ideal for continuous mixing operations in demanding drilling environments.

The venturi mixing hopper is equipped with a scientifically designed venturi nozzle that creates a strong suction effect, enabling fast and efficient blending of dry additives into the circulating drilling mud. The hopper is made of durable carbon steel with an anti-corrosion coating, ensuring reliability and consistent performance under high-pressure conditions.
All components are mounted on a solid structural skid base, allowing easy transportation, installation, and integration with existing mud systems. The modular design also enables flexible configuration with mud tanks, mixing systems, or solids control units, depending on site requirements.

The Jet Mud Mixing Unit is an essential part of any modern drilling fluid system, ensuring accurate control of mud density and viscosity. Properly mixed drilling mud not only stabilizes boreholes but also improves drilling penetration rates and reduces equipment wear.

GN Solids Control designs and manufactures a full range of mud mixing and solids control equipment, including shale shakers, mud cleaners, decanter centrifuges, and slurry vacuum pumps. With decades of experience and an extensive project record across more than 80 countries, GN provides customized and efficient solutions for oil & gas drilling, HDD, tunneling, and geothermal projects.

The successful delivery of these 8 Jet Mud Mixing Hopper Units once again demonstrates GN’s capability to provide reliable, field-proven equipment that meets international standards and supports global drilling operations.

For more information about GN’s mud mixing systems and other drilling fluid solutions, please feel free to contact us.

GN Solids Control has recently completed the delivery of three customized mud desilter systems for an offshore oilfield project in South America. Designed to meet the demanding requirements of offshore drilling, these systems provide high-efficiency solids control within a compact, transportable footprint that fits perfectly into the platform’s limited space.

Each mud desilter package includes a hydrocyclone desilter, a bottom shale shaker, and a mud tank assembly. The system is engineered to handle fine solids separation, removing particles down to 15 microns from the drilling fluid. This ensures the mud’s viscosity and density remain within optimal parameters, which is critical for maintaining drilling stability and preventing equipment wear.

To accommodate offshore transport and installation constraints, GN’s engineers developed a modular design where the desilter assembly can be placed inside the mud tank for shipment. This innovative configuration minimizes space usage during logistics and reduces offshore installation time. Upon arrival at the platform, the units can be quickly assembled and connected to the existing mud circulation system, significantly accelerating the project’s commissioning process.
The hydrocyclones used in the desilter are made of high-grade polyurethane, providing excellent resistance to wear and corrosion while maintaining consistent separation efficiency. The bottom shaker, equipped with GN’s linear motion vibrating deck and high-strength composite frame screens, delivers powerful solids removal with reduced fluid loss. This combination guarantees long-term, stable operation even under heavy load conditions.

The mud tanks are designed for offshore use, featuring marine-grade steel construction and anti-corrosion epoxy coating, ensuring long service life and safety in marine environments. Each tank includes all necessary accessories—lighting, walkways, handrails, and ladders—complying with offshore operation standards.

This project further strengthens GN’s position as a global leader in solids control and drilling fluid management solutions. With extensive experience in offshore applications, GN offers a full range of equipment, including shale shakers, mud cleaners, decanter centrifuges, and vacuum pumps. The company’s solutions are widely used in offshore, onshore, and trenchless drilling operations across more than 80 countries.

By integrating efficiency, durability, and environmental responsibility, GN Solids Control continues to deliver high-performance systems that support the success of offshore drilling projects worldwide.
For more information about GN’s offshore mud desilter systems, please feel free to contact us.

GN Solids Control recently delivered a Hydrovac Slurry Separation System to a client in the United States, marking another step in the company’s mission to provide environmentally responsible and cost-effective solutions for the excavation industry. This delivery highlights GN’s capability to support contractors dealing with the unique challenges of hydrovac operations.

Hydrovac excavation, widely used in North America for exposing underground utilities, trenching, and pipeline installation, generates substantial volumes of slurry. This slurry, composed of soil, clay, sand, and water, must be processed before disposal or reuse. Traditional methods—such as direct hauling of liquid waste—are costly, time-consuming, and environmentally unsustainable. GN’s system changes the equation by enabling on-site slurry separation and recycling.

Breaking Down the System
The delivered unit includes four key processing modules:
Coarse Screening Module: Removes large particles and debris, protecting downstream equipment and improving system reliability.
Fine Screening Module: Employs high-performance shale shakers to separate medium solids such as sand and silt, ensuring smoother processing.
Desander Module: Hydrocyclones remove particles down to around 40 microns, producing cleaner slurry and extending centrifuge lifespan.
Large Bowl Decanter Centrifuge Module: This high-speed centrifuge handles the fine separation stage, delivering clarified water for reuse and compact solids for easier disposal.
Together, these modules form a complete processing chain that allows contractors to manage slurry at the jobsite instead of relying solely on disposal facilities.

Advantages for Contractors
The benefits of GN’s Hydrovac Slurry Separation System go far beyond equipment performance:
Operational Savings: By separating water and solids on-site, contractors can significantly cut down hauling and disposal costs.
Regulatory Compliance: Local authorities increasingly enforce strict waste handling and discharge standards. GN’s system helps clients meet these requirements with confidence.
Water Recycling: Clean water recovered during the process can be reused in excavation, reducing the consumption of fresh water.
Mobility & Modularity: Each module is designed for flexible transport and quick installation, making the system suitable for both short-term and long-term projects.
Reduced Downtime: Reliable GN equipment ensures continuous operation, even in demanding conditions.

A Commitment to Sustainable Solutions
The successful delivery to the U.S. market reinforces GN’s growing presence in North America. More importantly, it demonstrates GN’s ongoing commitment to supporting sustainable construction practices. By helping contractors minimize environmental impact and optimize resource use, GN contributes to a more efficient and eco-conscious excavation industry.
As urban infrastructure expands and environmental regulations tighten, the demand for effective slurry management solutions will only grow. GN Solids Control is well positioned to meet this demand with proven technology, global service support, and extensive application experience.
For more details about GN’s Hydrovac Slurry Separation Systems and other slurry management technologies, please feel free to contact us.

GN Solids Control recently completed the delivery of 16 complete packages of drilling mud centrifuge and vertical cuttings dryer systems for an overseas oilfield service company. This project highlights GN’s role as a full-scope solution provider for both solids control and drilling waste management.
Instead of simply supplying individual equipment, GN designed and delivered integrated systems that ensure seamless operation at the drilling site. Each centrifuge package includes a GNLW series drilling mud decanter centrifuge, a heavy-duty lifting stand, and a reliable feeding pump. Together, these components enable precise separation of fine solids from drilling fluids, ensuring that the mud properties are always within the optimal range for safe and efficient drilling.

Meanwhile, each vertical cuttings dryer package provides an end-to-end drill cuttings treatment solution. It features a high-speed GNCD series dryer, a stable support frame, a washing screw pump for screen cleaning, and a discharge conveying system to transport treated cuttings. This modular approach not only simplifies field installation but also ensures quick integration into the customer’s existing operations.

The real impact of this delivery lies in the value it brings to the customer:
Environmental compliance – Cuttings dryers reduce the oil on cuttings (OOC) to industry-accepted levels, which is essential for meeting environmental regulations, particularly in offshore drilling.
Cost efficiency – By recovering drilling fluids from both cuttings and mud, the client reduces mud consumption and waste disposal costs.
Operational reliability – GN’s equipment is manufactured under strict API and ISO quality standards, offering durability and stable performance even in harsh drilling environments.
Simplified logistics – Providing centrifuges and dryers as full systems, rather than standalone units, minimizes setup time and ensures smooth project execution.

This project is also a strong example of GN’s ability to support international partners with turnkey packages. By supplying not just machines but complete engineered solutions, GN helps customers focus on drilling performance while maintaining sustainable practices.
The delivery of these 16 packages demonstrates GN’s ongoing commitment to innovation and global service. With proven success in North America, the Middle East, Asia, and Africa, GN Solids Control has established itself as a trusted global supplier of solids control, separation, and waste management equipment.

As oilfield operators continue to face stricter environmental regulations and rising drilling costs, GN’s integrated approach—combining fluid recovery, cuttings treatment, and reliable engineering—ensures customers achieve both operational efficiency and environmental responsibility.

GN Solids Control recently completed the delivery of a Triple Shale Shaker unit combined with a Mud Cleaner for a drilling company in the Middle East. This customized package demonstrates GN’s ability to provide advanced solids control solutions tailored to regional drilling demands, where high efficiency, continuous operation, and strict environmental compliance are critical.

Advanced Shale Shaker System
At the heart of the package is the Triple Shale Shaker GNZS594 series, designed to handle large volumes of drilling mud under demanding drilling conditions. Each shaker is equipped with a four-panel, high G-force vibrating deck, capable of achieving efficient cuttings separation while extending screen service life. By operating three shakers in parallel, the system ensures a significantly larger processing capacity, making it ideal for deep and extended-reach drilling projects in the Middle East.
The shaker’s modular design also allows for flexible operation—units can be run individually or together depending on drilling fluid conditions, giving operators the ability to optimize efficiency while minimizing energy consumption.

Integrated Mud Cleaner
To complement the shale shakers, the system is integrated with a Mud Cleaner GNZJ594K-3S16N, which combines a desander and desilter mounted above the shaker deck. The desander cones (10-inch) and desilter cones (4-inch) are designed to efficiently remove fine solids down to 20 microns, ensuring that drilling fluids remain within desired parameters. Recovered fluids are further processed through the bottom shaker, reducing waste and improving fluid recovery.
This integrated design reduces the overall footprint of the system while maintaining high performance, a key requirement for offshore and land drilling rigs where space and efficiency are equally important.

Supporting Equipment and Features
The complete system is supported by centrifugal pumps, electrical control panels, and a robust skid structure for safe installation and operation. The pumps are mission-type, heavy-duty, and interchangeable with other major brands, ensuring easy maintenance and spare parts availability in the Middle East market.
The unit also features a user-friendly electrical control system, allowing operators to adjust vibration parameters and monitor performance in real time. Safety measures such as walkways, handrails, and ladder access are fully compliant with international standards, ensuring safe operation for rig crews.

Benefits for the Client
The Middle East drilling company selected GN’s Triple Shale Shaker with Mud Cleaner system for several reasons:
High Processing Capacity: Able to handle the large drilling fluid volumes typical in regional deep wells.
Efficient Solids Removal: Three-stage separation reduces non-productive time and improves drilling fluid quality.
Durability and Reliability: Rugged design suitable for the harsh drilling environments of the Middle East.
Cost-Effectiveness: Reduced maintenance and operational costs compared with conventional systems.

Conclusion
The successful delivery of this project further strengthens GN Solids Control’s position as a reliable partner for drilling companies in the Middle East. By combining advanced technology with practical field experience, GN continues to provide customized solids control solutions that improve efficiency, reduce costs, and meet the highest environmental standards.

GN Solids Control is pleased to announce the delivery of a complete package of mud agitators and centrifugal pumps to support an overseas client’s workover drilling rig project. This delivery highlights GN’s strong capability to provide reliable mud mixing and transfer equipment that meets the demanding requirements of workover operations in the oilfield.

The Role of Mud Agitators in Workover Drilling
In workover rigs, the mud tank system plays a critical role in storing and conditioning drilling fluids. Mud agitators are installed in the mud tanks to prevent the settling of solids and to ensure uniform mixing of the drilling fluid. This process is vital to maintain the proper rheological properties of the mud, which directly impacts wellbore stability and drilling efficiency.
GN mud agitators are designed with a helical gear reducer and electric motor drive, providing reliable torque transmission and long service life. The impellers are optimized to deliver strong agitation while minimizing power consumption. Key features include:
Rugged Gearbox Design – High torque capacity and efficient performance.
Flexible Installation Options – Available in vertical or horizontal configurations.
Durable Components – Impellers and shafts manufactured from high-strength materials to withstand harsh drilling environments.
Ease of Maintenance – Modular design makes replacement and servicing simple.

These agitators ensure that the drilling mud remains homogeneous, preventing barite sag, reducing risks of stuck pipe, and improving the effectiveness of solids control equipment downstream.

Centrifugal Pumps for Mud Transfer
Alongside the mud agitators, GN also supplied a set of centrifugal pumps, which are widely used for transferring drilling fluids within the mud system. GN centrifugal pumps are based on the Mission Magnum style pump design, ensuring full interchangeability with international brands.
Main advantages include:
High Efficiency Impeller – Delivers stable flow and extended service life.
Mechanical Seal Assembly – Minimizes leakage and maintenance needs.
Wide Applications – Suitable for desander, desilter, mud mixing hopper, and general mud transfer duties.
Interchangeable Parts – Spare parts are fully compatible with other market-leading brands, simplifying inventory management for drilling contractors.

Benefits for the Workover Rig Project
By combining mud agitators and centrifugal pumps, GN delivered a complete mud mixing and transfer solution for the client’s workover drilling rig. The integration provides several key benefits:
Stable Mud Properties – Continuous agitation prevents solids from settling in tanks.
Efficient Solids Control – Uniform fluid properties improve the performance of shakers, cleaners, and centrifuges.
Reduced Downtime – Reliable pumps ensure smooth circulation of drilling fluids.
Cost Savings – Interchangeable parts and durable design lower maintenance and operating costs.

Conclusion
The successful delivery of mud agitators and centrifugal pumps for this overseas workover drilling rig once again demonstrates GN Solids Control’s dedication to supplying robust and efficient drilling fluid management solutions. With proven designs, international compatibility, and a focus on operational reliability, GN continues to serve global clients across drilling, workover, and completion projects.
For more information about GN’s mud agitators, centrifugal pumps, or other solids control equipment, please feel free to contact us any time.