admin – Drilling mud Equipment

GNLW364 Sludge Dewatering Centrifuge for Overseas Environmental Company

The GNLW364 is a 14-inch bowl high-speed decanter centrifuge engineered for wastewater treatment, designed to handle both oily and oil-free effluents. Built on a robust standard design, the GNLW364 can be modified and customized to meet the unique requirements of different projects. In this particular case, it was tailored for an overseas environmental company, with adjustments made to suit the client’s site-specific conditions and processing goals.

To ensure each solution is fit-for-purpose, GN Solids Control sales engineers begin the process by issuing detailed technical questionnaires. These help gather all necessary project parameters and operational conditions. Based on this information, GN’s centrifuge engineering team proposes optimized specifications to deliver efficient and reliable separation performance.

Technical Features

Bowl Geometry: The GNLW364 features a bowl with a 4:1 diameter-to-length ratio, which is considered ideal for wastewater and dewatering applications. This larger ratio increases sedimentation efficiency, supporting higher throughput and improved separation.

Centrifuge Speed Control: Variable speed control is essential for wastewater treatment due to fluctuating feed characteristics. The GNLW364 is equipped with a VFD (Variable Frequency Drive) control panel that enables precise, real-time adjustment of both the bowl and conveyor speeds to maintain consistent performance across different feed conditions.

Safety System: The unit includes a full suite of integrated safety features, such as temperature and vibration sensors. These protect both the machine and operators, allowing for safe and continuous operation.

Application Scope

This particular project utilizes the GNLW364 for 2-phase separation. However, GN Solids Control also offers 3-phase decanter centrifuges to handle more complex separation tasks involving oil, water, and solids. Available in multiple bowl sizes, these systems are used widely in industries such as petroleum refining, chemical processing, food production, and environmental engineering.

The flexibility and engineering precision of the GNLW364 make it a versatile and reliable solution for demanding separation applications in diverse global markets.

GN VFD Driling Fluids Decanter Centrifuge for Asia Drilling Company

Two sets of GNLW363D-VFD decanter centrifuge and one set of GNLW453D-VFD decanter centrifuge, manufactured by GN Solids Control, were recently shipped to an Asia-based drilling company for drilling mud treatment operations.

These units are equipped with advanced Variable Frequency Drive (VFD) technology, providing precise control over the centrifuge’s speed and performance, which is crucial for optimizing the drilling fluid treatment process.

The VFD centrifuges come with a complete control system, enabling the user to easily adjust the centrifuge’s bowl speed, conveyor speed, feeding flowrate and operational settings according to the specific needs of the drilling operation. This flexibility ensures consistent solids separation and enhanced performance in the treatment of drilling mud. The VFD technology also improves energy efficiency by allowing the motor to operate at variable speeds, reducing power consumption while maintaining optimal separation performance.

Each centrifuge set includes a feeding pump (German brand NETZSCH screw pump), which is essential for supplying the proper flow of drilling fluid to the centrifuge. The feeding pump works seamlessly with the VFD centrifuge, ensuring a consistent and steady flow rate, which is key for effective solids removal. Additionally, the package includes telescopic skids, hoses, and pipes, all internally packaged for easy integration into the drilling operations. The telescopic skids allow for easy transportation and positioning of the centrifuge units at different drilling sites, which is especially important when moving between multiple rigs.

The provided hoses and pipes ensure proper connection and minimize the risk of leaks, facilitating smooth operation without interruptions. These centrifuges from GN Solids Control offer a reliable and efficient solution for managing drilling mud, improving the overall performance of the drilling operation while reducing environmental impact.

With the VFD control system, these centrifuge units provide enhanced operational flexibility, making them ideal for a variety of drilling conditions. The system allows for easy speed adjustments, ensuring that the company can maintain an efficient and effective drilling fluid system across multiple rigs and drilling operations. GN Solids Control continues to be a trusted manufacturer in the solids control industry, offering high-quality solutions for mud treatment.

Manual adjustable screw conveyor VS VFD control screw conveyor

A screw conveyor, also known as an auger, is a widely used equipment for transferring drilling cuttings from shale shakers, mud cleaners (desanders and desilters), decanter centrifuges, and carrying these cuttings for feeding to drilling waste management equipment, like to high G drying shale shaker, vertical cuttings dryer, filter press, etc…. It is also widely used to discharge solids from High G dryering shaker, the decanter centrifuge, etc… It is an essential part of solids control systems, efficiently moving waste material to designated disposal areas.

When it comes to operating a screw conveyor, users often have questions regarding the functionality of the manual variable speed feature. Weather they should choose the manual variable speed reducer screw conveyor, or the screw conveyor equipped with a VFD control panel? Whether the manual variable speed unit can be removed and the motor connected directly to the gearbox to convert it into a fixed-speed screw conveyor if the variable speed unit malfunctions.

Technically speaking, if the manual gearbox fails, it is not advisable to simply connect the motor directly to the gearbox. The gearbox is designed to operate with a manual variable speed adjustment, and removing this feature would compromise the system’s functionality. In this case, it would be necessary to replace the broken gearbox with a new one to maintain proper operation.

If you need to adjust the speed frequently, the better solution is to consider using a Variable Frequency Drive (VFD) control panel. A VFD provides a more flexible and efficient way to control the speed of the motor. It allows for on-demand speed adjustments without the need for manual changes, making it particularly useful in situations where the speed needs to be altered regularly. For example, if your operations require speed adjustments on a daily basis or at different drilling rigs, a VFD system would be much more convenient and effective.

However, if your operations involve fewer require speed adjustments on a daily basis or at different drilling rigs, a VFD system would be much more convenient and effective.

However, if your operations involve fewer speed changes and the equipment is mainly used in a fixed-speed setup for extended periods, a manual variable speed gearbox might still be suitable. The lifetime of both manual adjustment and standard gearboxes is quite long, especially if the speed adjustment does not need to be changed frequently. For rigs that move between locations and require minimal speed changes, the manual gearbox remains a reliable and durable option.

In summary, if you frequently need to adjust the speed of your screw conveyor, a VFD control system is the best choice. However, if the speed adjustment is minimal and you’re comfortable with a fixed speed, replacing the manual gearbox with a new unit will restore the system to its original functionality.

1000HP Drilling Rig Mud Tank System running in Yunan

GN Solids Control recently completed the installation of a 1000HP drilling mud system at a rig site in Yunnan Province, China. The system is designed to handle the demands of high-performance drilling operations, featuring a comprehensive range of equipment to ensure efficient mud treatment and solids control.

The system consists of four mud tanks, providing ample capacity for the handling and treatment of drilling fluids. The key components of the system include:

Three GNZS594K drilling mud shale shakers: These are four-panel linear motion shale shakers, designed to efficiently separate large solids from the drilling mud. GN Solids Control also offers dual-motion and double-deck shale shaker models as optional upgrades, allowing for more versatile operations depending on the specific needs of the rig.

One GNZCQ270 vacuum degasser: This unit is a self-suction shale shaker, eliminating the need for an additional 75kW feeding pump. It plays a crucial role in removing gases from the drilling fluid, helping to maintain the stability and quality of the mud.

One GNZJ752K-2S desander mud cleaner: Equipped with a two-panel mini-size shale shaker and two 10-inch desander cones, this mud cleaner efficiently separates larger solids from the mud, ensuring the drilling fluid remains at optimal viscosity and density.

One GNZJ752K-12N desilter mud cleaner: Similar in design to the desander unit, this mud cleaner features a two-panel mini-size shale shaker and twelve 4-inch desilter cones, which further refine the mud by removing finer solids, ensuring high-quality drilling fluid.

One GNLW452D middle-speed big bowl decanter centrifuge: This centrifuge is designed for effective fine solids separation, ensuring the efficient treatment of drilling fluids and the removal of ultra-fine particles that cannot be captured by the previous stages.

In addition to these core components, GN Solids Control also provided a range of accessories, including mud agitators, centrifugal pumps, mixing hoppers, and an electrical control system to ensure the system operates smoothly and efficiently.

This comprehensive drilling mud system, tailored to the needs of the Yunnan rig site, ensures efficient solids control and mud management, ultimately enhancing the performance and sustainability of the drilling operations.

GN Dewatering Centrifuge for Contaminated Soil Washing Slurry treatment in Middle East

GN Solids Control offers highly versatile dewatering decanter centrifuges, which are essential for wastewater treatment across various industries, including oil rigs, trenchless construction, and industrial applications. These centrifuges are designed with multiple drum size options, ranging from 9-inch to 30-inch, catering to a wide range of project requirements. The length of the drum and the specific design are customized based on the characteristics of the materials being processed and the unique operational needs of each project.

To ensure optimal performance, GN Solids Control’s engineers thoroughly assess project details by sending out questionnaires to clients. This allows them to understand the specific needs and conditions of the project, enabling the provision of tailored recommendations for centrifuge model selection. Whether the project involves oilfield waste treatment, trenchless technology applications, or industrial wastewater, GN Solids Control ensures the right centrifuge is chosen for maximum efficiency and performance.

In addition to the decanter centrifuges, GN Solids Control also provides chemical dosing units to complement the dewatering process. One of the key offerings is the three-tank automatic dosing system. This system is equipped with high-quality stainless-steel tanks and a fully automated electrical control system. It is designed for the automatic mixing and dosing of chemicals, making it ideal for powdered chemicals. The fully automated system ensures consistent and accurate dosing, which is essential for achieving optimal dewatering results.

For applications that require the dosing of liquid chemicals, GN Solids Control also offers a PE bucket manual dosing system. This system is particularly suited for projects where manual control is preferred, providing flexibility in chemical dosing for a variety of operational scenarios.

By providing both automatic and manual dosing options, along with customizable centrifuge solutions, GN Solids Control ensures that clients receive the most effective equipment for their specific wastewater treatment needs. The company’s focus on tailored solutions and high-quality equipment makes it a trusted partner in industries requiring advanced dewatering and waste management technologies.

Drilling Mud Decanter Centrifuge and Centrifugal Pumps for Offshore Drilling Company

GN Solids Control is a leading provider of advanced drilling mud treatment equipment, designed for both onshore and offshore applications. Recently, the company successfully completed and shipped a range of offshore-standard decanter centrifuges and centrifugal pumps, tailored to meet the demanding requirements of offshore operations. These units have been built to comply with stringent offshore industry standards, including material specifications, explosion-proof standards, painting requirements, and lifting standards, ensuring that the equipment performs reliably and safely in harsh offshore environments.

The offshore standard decanter centrifuges and centrifugal pumps are integral to effective drilling mud treatment, offering high-efficiency separation and waste management capabilities. The equipment is engineered to handle the unique challenges posed by offshore drilling operations, including extreme conditions and the need for robust, reliable equipment that can function continuously without failure. These units are designed to provide optimal performance, reducing downtime and ensuring smooth operations even in the most challenging offshore environments.

In addition to the decanter centrifuges and centrifugal pumps, GN Solids Control offers a complete range of oil and gas drilling solids control and drilling waste management equipment. This comprehensive lineup includes equipment designed to manage drilling fluids, separate solids from liquids, and treat waste generated during drilling operations. The company provides everything from shale shakers and desanders to mud cleaners and agitators, all engineered to meet the specific needs of both onshore and offshore rigs.

Furthermore, GN Solids Control also manufactures high-quality replacement screens for both onshore and offshore rigs. These screens are designed to deliver excellent performance and durability, ensuring that the solids control process runs smoothly and efficiently. Whether for offshore or onshore operations, GN Solids Control provides a full suite of equipment and solutions that ensure optimal drilling performance, reduce environmental impact, and enhance the overall efficiency of drilling operations.

With its commitment to providing high-quality, reliable, and safe equipment, GN Solids Control continues to be a trusted partner in the oil and gas industry, offering cutting-edge solutions for drilling mud treatment and waste management.

GN Engineering Mud Dewatering Centrifuge for Overseas Customer

These centrifuges are designed with multiple drum size options, ranging from 9-inch to 30-inch, catering to a wide range of project requirements. The length of the centrifuge bowl and the specific design are customized based on the characteristics of the materials being processed and the unique operational needs of each project.

Contaminated Soil and Oil-Based Mud Cutting Treatment Systems

GN Solids Control is a leading name in the design and manufacturing of oil – based mud (OBM) cutting treatment systems. GN can send our engineers for the first – time installation and commissioning to ensure a smooth start – up for our clients.

Key Separation Equipment
Vertical Cuttings Dryer
The vertical cuttings dryer is the star of our OBM cuttings treatment lineup. It is the primary separation equipment for OBM cuttings treatment and is highly efficient. With this advanced technology, it can reduce the Oil on Cuttings (OOC) to an impressively low range of 3 – 5%. This significant reduction not only helps in waste management but also has cost – saving implications for the oil and gas industry.
High G Drying Shaker
While the high G drying shaker is mainly designed for water – base mud cuttings, some clients have also used it for OBM cuttings. However, it has its limitations. It can only reduce the OOC to around 10%. This makes it clear that for optimal OBM cuttings treatment, the vertical cuttings dryer is the better choice.

High – Speed Centrifuge
High – speed centrifuge plays a crucial role in the treatment process. It is used after the vertical cuttings dryer. Its function is to reduce the mud weight and make the mud qualified for reuse. By recycling the mud, we not only save resources but also contribute to a more sustainable drilling operation.
Treatment Locations
It understand that every client has different operational setups. Some may choose to treat the cuttings at the rig site, while others prefer to collect the cuttings and treat them in their yards. To better serve clients, GN Solids Control will send a question list on waste management in investigate the project information and demands. This will enable GN to offer clients more tailored and proper solutions.

GN Solids Control Solutions
Solution 1: Vertical Cuttings Dryer and High – Speed Centrifuge Package
This package is an excellent choice for treating fresh OBM cuttings at the rig site. It is relatively easy to implement and highly effective. With this solution, our system can reduce the OOC to the 3 – 5% range, ensuring efficient waste reduction right at the source.

Solution 2: Oily Sludge Separation System for Old Oily Sludge in Waste Pits
For the old oily sludge in waste pits, we offer the oily sludge separation system. We have a successful project reference in Qatar that showcases the effectiveness of this solution.
In this project, the results were remarkable:
Oil on Solids: 1 – 3%
Water in Oil: 3 – 5% (BS&W)
Oil in Water: 1%

GN Solids Control OBM cuttings system is a waste – reducing system that can be used before TDU (Thermal Desorption Unit) to improve TDU efficiency.

GN Containerized Sludge Dewatering Package for Soil Remediation in Middle East

GN Solids Control recently developed a Containerized Sludge Dewatering System for a Middle East project, designed specifically for contaminated soil treatment and cleaning. This innovative system is fully integrated into a 40-foot fabricated container, ensuring easy transportation and quick on-site installation. All components are pre-assembled and connected in the container, minimizing the time and effort required for installation at the project site.

The system includes the following key equipment:

High-Speed Big Bowl Decanter Centrifuge (GNLW654-VFD): This centrifuge is designed for efficient dewatering of sludge. It is equipped with a Variable Frequency Drive (VFD), allowing precise control of the centrifuge’s speed to optimize solids separation and ensure high performance in the dewatering process.

Feeding Pump (GNG30-075C): The system uses a 7.5kW screw pump, which is typically used to feed a 14-inch centrifuge. However, since the dewatering treatment capacity is much smaller compared to mud treatment, this smaller pump is a more suitable fit for the system, providing the necessary flow rate for the sludge dewatering process.

Polymer Dosing Pump (GNG05-030C): A screw pump is used as the polymer dosing pump. This pump is responsible for adding the appropriate amount of polymer to the sludge, which aids in the coagulation and flocculation processes, allowing for more efficient solid-liquid separation during dewatering.

Slag Screw Conveyor (GNSC10B-7.5M): A screw conveyor is used to transfer the separated sludge (slag) from the centrifuge to the designated disposal or storage area, ensuring continuous operation without manual intervention.

The entire system is housed in a 40-foot container, which provides a compact and mobile solution for on-site sludge dewatering. The containerized design ensures that the equipment is easily transportable, and the pre-connected system significantly reduces installation time at the project site. This approach provides a turnkey solution for contaminated soil treatment and cleaning, offering a streamlined process and efficient operation.

This containerized sludge dewatering system from GN Solids Control is an ideal solution for projects requiring reliable, high-performance dewatering equipment in a compact and easily deployable format.

3 Sets GNTBM-360 Slurry Separation Plant for Overseas Pipe Jacking Project

Pipe jacking is a non-excavation construction technique used to cross sensitive areas such as roads, rivers, and buildings. During the construction process, lubricating slurry (bentonite-based or polymer-based) is injected to reduce friction, which generates wastewater containing solid particles. The solid content in the waste water typically ranges from 5% to 30%, depending on geological conditions such as clay, sand, gravel, or rock layers. The particle size can vary from fine clay particles to gravel larger than 50mm, and in complex geological conditions, large rock pieces may also be present. This waste water needs to be treated to minimize environmental impact.

Given the characteristics of the wastewater, a staged treatment process is required. The typical treatment flow includes: coarse screening shale shaker separation, further solid-liquid separation, and fine filtration/ centrifuge dewatering system which are optional based on the environmental regulations of each country.

Recently, GN Solids Control completed three GNTBM-360 Slurry Separation Plants for an overseas pipe jacking project. These three systems were designed specifically for the same client. The systems include a coarse screening shale shaker system and two-stage solid-liquid separation using desanders and desilter hydrau cyclones. In countries where wastewater discharge is not allowed, additional options like flocculation and dewatering centrifuge systems can be added to meet the regulatory requirements.
Horizontal slurry pumps were used to feed the desander and desilter hydrau cyclones.

The GNTBM-360 Slurry Separation Plant is designed to efficiently treat wastewater generated during pipe jacking operations. The system ensures the effective separation of solid particles from the slurry, allowing for the recycling of the treated water and minimizing the environmental impact of the project. By using advanced equipment such as desanders, desilters, and optional centrifuge systems, the system delivers reliable, high-performance waste treatment solutions for pipe jacking projects.

This tailored slurry separation system from GN Solids Control is an essential solution for ensuring environmental compliance and sustainability in sensitive construction projects that involve slurry-based operations.