Author: GN Solidscontrol

2 Sets GNOST-15 Oil Sludge Treatment System for Asia Customer

With environmental regulations tightening across the globe, oilfield service companies are under increased pressure to manage drilling and refinery waste in an efficient and eco-friendly way. Recognizing this demand, GN Solids Control has recently completed the delivery of two complete sets of GNOST-15 Oil Sludge Treatment Systems to a prominent environmental solutions company in Asia.
These modular systems are designed to recover oil, reduce waste volume, and meet discharge standards — all while lowering operational costs and environmental impact.

A Turnkey Solution for Oil Sludge Recovery
The GNOST-15 is a fully integrated system engineered to treat challenging oily sludge composed of oil, water, and fine solids. Each system includes:
Feeding Pump Module
This delivers a controlled feed of sludge into the system using a heavy-duty progressive cavity pump, ensuring stable flow and pressure throughout.
Premixing Tank Module
The sludge is heated and mixed with water and chemicals to reduce viscosity and prepare it for further separation, improving overall treatment efficiency.
High-G Shale Shaker Module
The first stage of physical separation removes larger solid particles and debris to protect downstream equipment.
Two-Phase Decanter Centrifuge (GNLW554)
Handles separation of fine solids and liquids, reducing TSS (total suspended solids) to manageable levels.
Three-Phase Decanter Centrifuge (GNLWS554)
Performs the crucial task of separating recovered oil, water, and residual solids in a single step, improving oil recovery and reducing disposal volume.
Chemical Dosing System
Ensures optimal demulsification and flocculation for efficient separation. The system is fully automated for precise dosage control.
Steam Generator
Provides thermal energy essential for lowering sludge viscosity and enhancing chemical reaction effectiveness.

Sustainability and Performance Combined
The GNOST-15 system demonstrates a holistic approach to oily waste management:
Oil Recovery: The system achieves a recovered oil quality with BS&W below 3%, enabling the oil to be reused or sold.
Cost Reduction: Recovered oil and water can be reused, significantly reducing the cost of fresh materials and disposal.
Regulatory Compliance: The system ensures that treated effluent and solids meet local environmental discharge standards.
Space-Saving Modular Design: All modules are skid-mounted and containerized, offering easy transport and installation at remote or compact sites.

GN Solids Control – Advancing Environmental Responsibility in Energy Sectors
This successful project reinforces GN’s commitment to supporting clients in Asia and around the world with advanced, practical, and environmentally responsible waste treatment technologies. From oil sludge treatment to solids control, GN continues to offer reliable solutions that improve both economic performance and environmental outcomes.

Containerized Tank Cleaning Oil Sludge Treatment System for European Customer by GN Separation

At GN Separation, we are committed to providing advanced and reliable solutions for challenging environmental and industrial issues. Recently, we have delivered a state-of-the-art Containerized Tank Cleaning Oil Sludge Treatment System to a prominent customer in Europe. This innovative solution is designed to address the growing concerns of oil sludge disposal and tank cleaning, ensuring both environmental compliance and operational efficiency.

Oil sludge, a byproduct of industrial operations, often accumulates in tanks and requires effective treatment to prevent environmental pollution. Traditionally, cleaning and disposing of oil sludge has been a complex and costly process. The client in Europe faced challenges with managing their tank cleaning operations, needing a more sustainable and cost-effective solution to treat and dispose of the oil sludge.

GN’s Solution: The Containerized Tank Cleaning Oil Sludge Treatment System

GN Separation’s containerized system is an all-in-one solution that simplifies the treatment of oil sludge and waste. The system is designed to be easily deployed in different locations, offering flexibility and efficiency. The treatment process utilizes advanced separation technology, including decanter centrifuges, to separate solid particles from the oily waste.

Key features of the system include:

  • Compact Design: The entire treatment system is housed in a standard shipping container, making it transportable and easy to install at different sites.
  • High Efficiency: The decanter centrifuge technology provides high-speed separation, allowing for effective removal of solids from the oil sludge.
  • Sustainability: The system promotes the recovery of valuable oil, which can be reused, reducing waste and environmental impact.
  • Versatility: It is adaptable to a wide range of tank cleaning applications, including oil and gas industries, marine operations, and more.

The system not only helps in treating oil sludge efficiently but also minimizes the environmental footprint of tank cleaning operations. By recovering valuable oil and reducing waste, this solution aligns with the increasing demand for eco-friendly technologies in the industrial sector.

GN Separation is proud to continue developing cutting-edge solutions that cater to the specific needs of our global clientele. This containerized tank cleaning and oil sludge treatment system is a testament to our dedication to innovation, quality, and sustainability.

 

GN GNLWS554 Three-Phase Decanter Centrifuge for USA Oil Sludge Treatment Project

Managing oily sludge is a critical challenge for environmental service companies operating in the oil and gas sector. In the United States, strict regulations require effective separation technologies to reduce hazardous waste volumes while recovering valuable resources. For a recent project in the U.S., GN Separation’s GNLWS554 three-phase decanter centrifuge has been selected to address these challenges, offering continuous separation of oil, water, and solids from complex sludge streams.

The GNLWS554 model is specifically engineered for separating emulsified and viscous oil sludges with high solids content. Its three-phase design enables simultaneous separation of oil, clarified water, and dewatered solids in a single continuous process. This capability is essential for treatment plants dealing with tank bottom sludge, API separator residues, or soil washing waste streams.
At the core of its operation is a large-diameter, high-speed rotating bowl that generates powerful centrifugal forces. These forces separate phases based on density differences, with an internal screw conveyor transporting solids to the discharge ports. The machine features wear-resistant materials and a variable-pitch conveyor to handle abrasive sludge while minimizing maintenance downtime.

For the U.S. project, the GNLWS554 was selected based on its processing capacity and its ability to meet local discharge and recycling requirements. By recovering oil suitable for reuse or sale, clarifying water for reuse or discharge, and reducing the volume of solids sent for disposal, the system helps the plant lower operating costs and comply with environmental regulations.


Integration with other treatment equipment is another key aspect. In this project, the decanter centrifuge is used in conjunction with progressive cavity feed pumps that handle viscous sludges reliably. Chemical dosing systems are employed to enhance phase separation, while storage tanks manage recovered oil and water streams. This integrated approach allows for automation and streamlined operation, reducing labor costs and operational risks.
Additionally, the GNLWS554 is designed as a skid-mounted unit, making it easier to transport, install, and maintain. For modular or mobile treatment setups, this is a significant advantage. Companies working on remediation projects or tank cleaning services often require flexible equipment that can be deployed to multiple sites efficiently.
Beyond cost savings, the three-phase decanter centrifuge supports sustainability goals by enabling resource recovery and reducing waste sent to landfills. In a regulated market like the U.S., offering an environmentally responsible solution can be a competitive advantage for service providers.
Overall, this project showcases the practical value of advanced separation technology in tackling real-world challenges in oily sludge management. The GN GNLWS554 three-phase decanter centrifuge exemplifies how engineering solutions can help companies meet stringent environmental standards while delivering efficient, reliable, and cost-effective operations.

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.