Driling Mud Recycling Unit and Decanter Centrifuges for overseas client

GN Solids Control has recently completed the delivery of two sets of GNMS-500K Mud Recycling Systems and three GNLW364GT Decanter Centrifuges for an international customer focused on efficient and environmentally conscious drilling operations. This project underlines GN’s commitment to sustainable solids control solutions that not only enhance drilling performance but also reduce environmental impact and operational costs.

A Commitment to Cleaner Drilling Practices
In today’s oilfield and infrastructure development environments, sustainability and compliance with environmental regulations are top priorities. Drilling operations, especially in urban or environmentally sensitive zones, require closed-loop systems that can minimize fluid loss and solid waste discharge. GN’s GNMS-500K system is engineered specifically for this need.
This 500GPM capacity unit features an integrated double-layer shale shaker and desander combination, effectively removing solids from the drilling mud before recirculating the cleaned fluid. By recycling the drilling fluids on-site, contractors significantly reduce their need to purchase and dispose of mud—making operations more cost-effective and eco-friendly.

Supporting Ultra-Fine Separation with GNLW364GT Centrifuges
To further refine the mud treatment process, GN has supplied three GNLW364GT decanter centrifuges, ideal for high-precision solid-liquid separation. These 14-inch bowl centrifuges are capable of removing fine solids down to 2-5 microns, ensuring the drilling fluids maintain the optimal rheological properties required for consistent and safe drilling.
Designed for continuous duty, the GNLW364GT features variable frequency drives (VFDs), tungsten carbide wear protection, and a robust construction suitable for remote or offshore applications. It significantly contributes to reducing mud dilution, which in turn limits chemical usage and disposal volume.

Environmental and Financial Advantages
By integrating GN’s modular systems into their operation, the client will achieve:
Lower drilling fluid consumption through continuous recycling
Decreased environmental footprint via reduced waste discharge
Longer equipment life due to fewer solids in fluid circulation
Cost-effective operations with minimal downtime and maintenance

These benefits align with global drilling trends where sustainability, safety, and efficiency drive decision-making. GN’s equipment is compliant with international standards (API, ISO) and backed by extensive field experience across the Middle East, Asia, and the Americas.

Learn more about GN Solids Control full product portfolio, feel free to contact and explore how we can support your project’s environmental and performance goals.

GNLW364 Decanter Centrifuge for Overseas Environmental Company

GN Separation has recently delivered a GNLW364 decanter centrifuge to an environmental services company overseas. This specific model is widely recognized for its effectiveness in sludge dewatering and wastewater treatment applications, particularly in industrial and municipal projects where efficiency and reliability are essential.

Advanced Features for Enhanced Performance

The GNLW364 unit is designed with performance and durability in mind. It is equipped with a 3-frequency conversion control cabinet, allowing independent adjustment of the bowl speed, scroll speed, and feed rate. This level of control ensures optimal separation performance depending on the characteristics of the sludge being processed.

In addition to the flexible VFD control, the unit also comes with temperature and vibration sensors, which are crucial for monitoring operating conditions in real time. These sensors help detect anomalies such as bearing overheating or mechanical imbalance, improving safety and minimizing downtime due to unexpected failures.

Application in Environmental Projects

This model is especially suitable for:

  • Sludge dewatering from industrial and municipal wastewater
  • Oil sludge treatment
  • Environmental remediation projects
  • Drilling waste management

By providing efficient solid-liquid separation, the GNLW364 supports environmental companies in reducing waste volume, improving water quality for discharge or reuse, and meeting increasingly strict environmental regulations.

Global Support and Customization

GN Separation provides global after-sales support and offers customized equipment configurations to meet specific requirements. In this project, the centrifuge was adapted to the client’s operational needs, ensuring easy integration into their existing treatment system.

With its proven performance and robust design, the GNLW364 continues to be a trusted choice for international environmental companies looking for effective sludge treatment solutions.

 

One batch of solids vacuum pump for Africa oilfield service company

GN Solids Control recently completed a customized delivery of solids vacuum pumps for an Africa-based oilfield service company, demonstrating GN’s strong capability to provide application-specific solutions for global clients operating in harsh environments.

The client faced a recurring challenge: how to efficiently transfer drilling waste and oil sludge across long distances in remote oilfields where power supply is limited or hazardous conditions prevail. After technical discussions and a comprehensive analysis of the project environment, GN proposed its air-operated GNSP series vacuum pumps as the ideal solution.

Unlike traditional mechanical or electrical pumps, GN’s solids vacuum pumps are fully pneumatic, requiring only an air source to operate. This makes them ATEX safe, explosion-proof by design, and perfect for Zone 1 and Zone 2 hazardous areas. The pumps are capable of moving viscous, abrasive, or sludge-like materials with up to 80% solids content — a key requirement for the customer’s needs.

The delivery included multiple units of GNSP-20B and GNSP-40B, each engineered with:
High vacuum capability (up to 85Kpa)
Long horizontal transfer distance (up to 1000m)
Max particle size handling up to 75mm
Wear-resistant internal structure for durability

To ensure successful commissioning and long-term reliability, GN provided pre-delivery performance testing, operation manuals, and remote technical support. The project also involved training the customer’s field engineers to operate and maintain the pumps effectively.

This order further solidifies GN’s presence in the African oilfield service sector, where demand for low-maintenance and high-efficiency transfer systems continues to grow. GN has previously delivered full solids control systems, centrifuges, and cuttings dryers to clients in Nigeria, Egypt, Kenya, and Algeria, building long-term trust with its localized support and robust product performance.

As global energy operations shift toward safer and cleaner waste management, GN remains committed to delivering smart, rugged, and compliant solutions tailored to each customer’s operational goals.

For more information about GN Solids Control vacuum pumps and waste transfer solutions, please feel free to contact us anytime!

GN VFD Decanter Centrifuges Supplied to Asia Drilling Company for Efficient Drilling Fluid Management

In modern oil and gas drilling operations, efficient solids control and waste management are essential to ensure performance, safety, and environmental compliance. Recently, GN Solids Control delivered three variable frequency drive (VFD) decanter centrifuges to a well-established drilling company in Asia. The package includes two units of GNLW363D-VFD and one unit of GNLW453D-VFD — a powerful combination that will enhance the client’s ability to manage drilling fluids more effectively on-site.

GNLW363D-VFD: A Proven Solution in Compact Size

The GNLW363D-VFD is one of GN’s most popular decanter centrifuge models, widely used in both land and offshore drilling projects. This model features a bowl diameter of 14 inches (360 mm) and a bowl length of 50 inches (1270 mm), which allows for efficient separation of fine solids from drilling mud.

With a VFD control system, operators can adjust the bowl speed, differential speed, and feed pump speed depending on the properties of the drilling fluid. This level of flexibility is crucial in drilling operations where fluid characteristics can change rapidly. The VFD system is housed in a user-friendly control panel, with built-in safety features such as over-torque and vibration protection.

GNLW453D-VFD: Enhanced Capacity for Higher Flow Rates

The GNLW453D-VFD is designed for larger processing volumes. It features an 18-inch (450 mm) bowl diameter, making it suitable for applications that require higher throughput and more robust solids handling capabilities. It complements the smaller 363D units by handling a greater volume of fluid while maintaining efficient solids removal.

This model is particularly beneficial in large-diameter well drilling and high-solids content operations, where standard centrifuges might struggle to keep up. The VFD functionality in the 453D unit also enables fine-tuning of separation performance to adapt to varying operational conditions.

Field Application: Supporting Drilling Performance in Asia

The three centrifuges were delivered to an Asia-based drilling contractor engaged in several onshore oil and gas projects. In these operations, maintaining the quality of the drilling fluid is critical for preventing formation damage, reducing non-productive time (NPT), and controlling operational costs.

By integrating GN’s VFD decanter centrifuges into their solids control system, the client is expected to benefit from:

  • Improved drilling fluid recycling efficiency
  • Reduced waste disposal volume
  • Lower consumption of chemicals and additives
  • Enhanced operational control through adjustable parameters

Built for Harsh Drilling Environments

All three centrifuges were manufactured at GN’s modern production facility and tested under stringent quality standards. They are equipped with wear-resistant components, such as tungsten carbide tiles on the screw flights and inlet ports, to ensure long service life even in abrasive conditions.

The delivery to this drilling company highlights GN Solids Control’s commitment to providing tailored separation solutions for customers around the world. With proven performance and customizable operation, GN’s VFD decanter centrifuges continue to be a reliable choice for the evolving needs of the oil and gas industry.

 

GN Decanter Centrifuge for Mining Tailings Treatment: Efficiency, Durability, and Smart Automation

Mining tailings management presents a significant technical and environmental challenge in the mining industry. To meet this demand, GN Separation has developed its T Series decanter centrifuge, specifically engineered for thickening and dewatering of slurries generated in mining processes. Unlike traditional filter presses, GN’s centrifuges rely on centrifugal force for solid-liquid separation, enabling efficient operation without the need for chemical additives, though they can also be combined with flocculants when needed.

Working Principle and Key Features
The process begins with the slurry entering the centrifuge’s screw shaft, where it is accelerated before being projected into the rotating bowl. Under high centrifugal force, heavier solid particles are deposited along the bowl wall, while clarified liquid is discharged from the opposite end. A distinctive feature of the T Series is its 8.5° beach angle, which extends the drying area, improves solid discharge, and results in drier cake output.

Robust Design and High-Performance Materials
Each component is engineered to withstand the harsh conditions of mining tailings treatment:

Bowl and screw are built from duplex stainless steel SUS2205 or SUS2304, offering superior corrosion resistance compared to standard grades like SUS304.

Wear protection inside the bowl includes anti-slip bars and replaceable carbide scrapers to ensure long service life and efficient operation.

The discharge port features a 360° rectangular design and is lined with hard alloy sleeves to prevent blockages and reduce abrasion.

SKF bearings are used, and the lubrication system can be customized — from automatic grease injection to thin oil circulation systems for high-speed, heavy-duty applications.

Models and Capacity Range
GN’s T Series includes models from GNLW-654GT to GNLW764A, with treatment capacities ranging from 1 m³/h to 100 m³/h, and bowl speeds from 2200 to 5054 RPM. These centrifuges achieve G-forces up to 3200, ensuring high-efficiency separation even with fine and abrasive particles.

Advanced Automation and Smart Control
The control system features:

Monitoring and protection for bearing temperature, vibration, and overload.

Real-time display and adjustment of bowl and differential speeds.

Integration with stainless steel VFD panels using high-quality components from Siemens, ABB, and Schneider.

Optional automatic dosing and flushing systems to support continuous operation in demanding environments.

Proven Performance Worldwide
GN decanter centrifuges are currently operating in large-scale mining projects across Australia, South America, and Peru, treating various types of tailings including fine-particle slurries and abrasive residues. Compared to conventional systems, GN centrifuges offer advantages such as smaller footprint, higher automation, and lower operating costs.

2000HP Drilling Rig Solids Control System for Indian Drilling Company

GN Solids Control has once again proven its strong capabilities in integrated project delivery by completing a full solids control system package for a 2000HP drilling rig, tailored for a long-term partner in the Indian oilfield services sector. This marks another milestone in GN’s expanding presence across South Asia and reflects the growing trust in GN’s engineering and manufacturing strength.

This system was designed to ensure maximum efficiency and reliability for challenging onshore drilling conditions. From fluid recovery to solids separation and mixing, the package is a complete solution. It features a GNZYQ1200A liquid-gas separator that protects the system from hazardous gas influxes, ensuring a safe and steady start to the fluid circulation process.

To handle primary solids separation, three high-G shale shakers (GNZS594K) were deployed, providing consistent performance with adjustable vibration and a large screen area for better cuttings removal. Following the shakers, a GNZCQ360 vacuum degasser removes trapped gases in the mud to stabilize density and improve downstream equipment performance.

A major highlight of the package is the GNZJ594K-2S12N mud cleaner, which combines desander and desilter cyclones over a single shaker deck to achieve fine solids removal. This multifunctional equipment reduces system footprint while improving separation efficiency, an ideal solution for high-end drilling operations.

Supporting this process are nine centrifugal pumps, selected for their interchangeability with Mission models and strong track record in durability. These pumps transfer fluids between equipment while maintaining high flow rates. The system includes ten mud tanks for various stages of the drilling process, designed and fabricated in-house by GN.

To maintain uniform mud properties and prevent solids settling, nineteen mud agitators and seventeen mud guns were installed throughout the tank system. Additionally, two jet mixing hoppers help operators quickly prepare or condition drilling fluids, providing greater flexibility and operational control.

All equipment is powered and monitored via a centralized electrical control system, ensuring safe and efficient operation across the entire rig-up.

By delivering this high-standard solids control system, GN Solids Control continues to strengthen its collaboration with Indian drilling contractors, offering not only premium equipment but also reliable engineering support and after-sales service. GN is proud to be part of the effort to improve drilling efficiency and reduce environmental impact across the region.

For more info on GN’s turnkey solutions, please feel free to contact us anytime.

GN Solids America to Exhibit at the Mexican Petroleum Congress 2025 in Acapulco – Booth #847

GN Solids America is pleased to announce its participation in the upcoming Mexican Petroleum Congress (Congreso Mexicano del Petróleo, CMP), which will take place from June 18 to 25, 2025, in Acapulco, Guerrero, Mexico. We warmly invite all attendees, clients, and energy professionals to visit us at Booth #847, where we will be showcasing our latest solutions for solids control and drilling waste management.

About the CMP

The Mexican Petroleum Congress is the largest and most important oil and gas event in Mexico, and a key gathering for energy professionals across Latin America. The CMP brings together operators, service companies, researchers, engineers, and decision-makers to foster technical exchange, showcase innovation, and strengthen industry collaboration.

GN Solids America – Customized Separation Solutions

As a subsidiary of GN Solids Control, GN Solids America is based in Houston, Texas, and serves clients across North and Latin America. We specialize in providing high-quality separation equipment and turnkey systems for the oil and gas industry, with a strong focus on fast support, local inventory, and technical expertise.

At CMP 2025, we will be presenting a wide range of equipment and integrated system solutions, including:

  • Shale Shakers and Mud Cleaners for primary solids separation
  • Decanter Centrifuges for fine solids removal
  • Vertical Cuttings Dryers for oil-based mud recovery
  • Vacuum Transfer Pumps for cuttings, sludge, and drilling waste
  • Screw Conveyors, Mud Mixing Hoppers, and Mud Tanks
  • Turnkey Mud Recycling Systems for land and offshore drilling

Our systems are designed to optimize drilling fluid performance, reduce environmental impact, and improve overall operational efficiency.

Visit GN Solids America at Booth 847

GN Solids America will be exhibiting throughout the event at Booth #847. Our technical and commercial team will be available to answer your questions, provide brochures and system drawings, and discuss customized solutions tailored to your operational needs.

We look forward to meeting you in Acapulco from June 18 to 25, 2025, and to sharing how GN Solids America can support your solids control and waste management challenges in Mexico and beyond.

For more information or to schedule a meeting during the show, feel free to contact us at usa@gnsolidscontrol.com or visit our website: www.gnsolidsamerica.com.

 

1000HP Drilling Rig Mud Tank System commissioning in Yunan Province

GN Solids Control has successfully commissioned a fully integrated 1000HP Drilling Rig Mud Tank System for a prominent oilfield operator in Yunnan Province, China. This deployment reinforces GN’s reputation as a trusted partner for turnkey drilling fluids systems that offer not only robust performance but also seamless field operation.

In today’s challenging drilling environments, reliability and integration are key. GN’s engineered system meets this need with a comprehensive setup designed to improve solids control efficiency, reduce non-productive time, and enhance HSE compliance.

Fully Integrated Mud Tank System
The system is composed of four functional mud tanks, each tailored for distinct purposes such as active mud circulation, mixing, and storage. Together, they form the operational backbone of the rig site’s fluid management strategy.

Core Equipment Supplied:
3 × GNZS594K Shale Shakers
Equipped with GN’s patented screen technology and robust dual-motor drive, these shakers provide high G-force linear motion to quickly separate large solids from drilling fluids. Their efficiency is critical to preventing formation damage and reducing wear on downstream equipment.
GNZCQ270 Vacuum Degasser
Removing entrained gases from the mud, this unit safeguards against gas-cut drilling fluid that could destabilize well conditions.
GNZJ752K-2S Desander & GNZJ752K-12N Desilter
This dual-stage hydrocyclone solution offers precise separation of sand and silt-sized particles. The integration with mini shakers underneath ensures dried discharge and continuous operation.
GNLW452D Decanter Centrifuge
Positioned as the final stage of solids removal, this medium-speed centrifuge efficiently handles low-gravity solids and recovers barite, keeping mud weight and rheology in optimal condition.
Auxiliary Equipment
The system also includes mud agitators, centrifugal sand pumps, a mud mixing funnel, and an explosion-proof electrical control system, ensuring safe and efficient fluid recirculation and mixing.

Field-Proven, Operator-Trusted
Designed for 24/7 drilling operations, GN’s equipment is engineered to minimize downtime and maintenance. All components were tested on-site under real drilling conditions by GN’s field engineers, ensuring they met both technical specifications and customer expectations.

This project highlights the value of working with a single integrated supplier. GN Solids Control not only manufactures each component in-house but also provides system design, commissioning, and long-term technical support. This one-stop solution saves time, reduces procurement complexity, and ensures total system compatibility.

GN continues to partner with oilfield service companies and operators around the world to deliver modular, efficient, and reliable mud systems. Whether it’s for onshore, offshore, or remote environments, GN’s solutions are field-tested and backed by a global support network.

Interested in learning more about GN’s drilling fluids systems? Feel free to contact us and explore our product line for a customized proposal.

GN Dewatering Centrifuge for Contaminated Soil Washing Slurry Successfully Commissioned in the Middle East


GN Solids Control recently completed the successful commissioning of a containerized sludge dewatering system in the Middle East, specifically designed for treating washing slurry derived from oil-contaminated soil. This project highlights GN’s capability in providing advanced separation equipment for environmental remediation applications.

Background: The Challenge of Treating Oil-Contaminated Soil
In many industrial and oilfield zones, soil contamination caused by crude oil and other hydrocarbons poses a significant environmental hazard. One effective remediation method is soil washing, where contaminated soil is washed with water and surfactants to separate the pollutants from soil particles. However, this process generates a slurry that contains both fine solids and emulsified oil residues, requiring further treatment before disposal or reuse.
GN’s Solution: Containerized Sludge Dewatering System


To address this challenge, GN delivered a containerized sludge dewatering system, which includes integrated components for mobility, protection, and ease of deployment. The key equipment in this system is the GNLW654-VFD high-capacity dewatering centrifuge, a robust machine engineered for handling large volumes of slurry with high solid content.
The centrifuge plays a vital role in the final stage of the treatment process. After the washing slurry passes through a dissolved air flotation (DAF) sedimentation tank, which removes a portion of the free oil and suspended solids, the remaining surface sludge still contains a significant amount of water and fine particulates. The GNLW654-VFD centrifuge is used to dewater this floating sludge, effectively reducing its volume and preparing it for disposal or further treatment.
Features of the GNLW654-VFD Dewatering Centrifuge

Large Capacity: With a 22-inch bowl diameter, the centrifuge is capable of processing high volumes of slurry, ideal for large-scale soil remediation projects.

Variable Frequency Drive (VFD): Allows precise control of bowl speed and differential speed, optimizing performance for various types of sludge.

Durable Construction: All wetted parts are made of wear-resistant stainless steel, ensuring reliable operation in harsh conditions.

Containerized Design: The entire system is housed in a standard container, making it easy to transport, install, and operate in remote or challenging environments.

Project Outcome
After site commissioning, the system achieved stable operation and delivered excellent separation performance. The moisture content of the discharged solids was significantly reduced, and the treated liquid met the customer’s discharge or recycling standards.

This project demonstrates GN’s commitment to supporting environmental remediation efforts in oil-producing regions. With growing attention on sustainability and pollution control, GN Solids Control continues to provide practical and efficient solutions for sludge dewatering and waste treatment challenges worldwide

GN Solids 750HP Workover Rig Solids Control System for China Oilfield Service Company

In response to the increasing demand for efficient and adaptable solids control systems in workover operations, GN Solids Control has successfully provided a fully customized solution to a major oilfield service company in China. This delivery demonstrates GN’s capabilities in designing and manufacturing complete systems tailored to specific rig requirements — in this case, for a 750HP workover rig.

The delivered system comprises a comprehensive set of solids control equipment and support components that ensure continuous fluid processing during rig operations:
Custom Mud Tank System
At the core of the solution is a specially fabricated mud tank with designated compartments for solids removal, mud mixing, and clean fluid storage. Designed to endure tough oilfield conditions, the tank also serves as the structural base for all solids control units and includes full electrical integration.

Dual GNZS594K Shale Shakers
To meet the processing demands of the workover rig, GN supplied two units of its GNZS594K linear motion shale shakers. These are high-capacity shakers equipped with durable composite screens and a high G-force vibration mechanism, ensuring fast removal of coarse solids from drilling fluids.

GNZS594K-2S12NK Mud Cleaner
To enhance separation efficiency, the system integrates a compact mud cleaner that combines 2 desander cones and 12 desilter cones over the same shaker model. This configuration delivers efficient multi-stage separation, crucial for maintaining the quality of re-used mud.

GNLW452D Medium-Speed Decanter Centrifuge
The centrifuge plays a vital role in fine solids removal. GN’s GNLW452D is engineered with precision balancing and VFD control, allowing operators to adjust bowl speed for optimal performance. It efficiently removes silt and fine particles, maintaining the integrity of the drilling fluid system.

Supporting Equipment
The package is rounded out with GN-manufactured centrifugal pumps, mud agitators, mud hoppers, and a complete electrical control unit. These auxiliary systems are essential for consistent mud circulation, chemical mixing, and reliable system control.

GN Solids Control’s engineering team worked closely with the client to ensure every detail — from layout to component sizing — aligned with field needs. By offering both standard modules and fully customized packages, GN reinforces its position as a flexible and responsive solids control equipment provider.

This project reflects GN’s commitment to delivering not just equipment, but solutions — engineered to increase efficiency, reduce downtime, and ensure environmental compliance in oilfield operations.
For more details on GN’s rig-ready systems, please feel free to contact us anytime.