Uncategorized – Page 2 – Drilling mud Equipment

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.

3000HP Drilling Rig Solids Control System for Asia Drilling Company

A 3000HP drilling rig requires high standards for drilling mud solids control equipment due to its larger scale and more demanding operational needs. GN Solids Control designs the mud system to accommodate larger volumes of drilling fluids and ensure efficient solids control throughout the drilling process.

The mud system includes an 80bbl trip tank, complete with a centrifugal trip pump. The trip tank features a level meter with a 0.5bbl level indicator, ensuring precise monitoring of the mud volume. There are three active mud tanks in the system: a shale shaker tank, an intermediate tank, and a suction tank, each with a 500bbl capacity. These tanks are essential for maintaining the right balance of drilling fluids during operations.

In addition, the system includes four reserve tanks for mud storage, with a total capacity of 2000bbl. The setup also includes three water tanks and a 70bbl pill tank to support various operations and drilling fluid maintenance.

A comprehensive mixing system is integrated into the mud system for deep drilling rigs. The mixing system consists of two mixing hoppers, three centrifugal mixing pumps, and one shearing pump for use and backup. This setup ensures that drilling fluid is mixed effectively to maintain consistent viscosity and performance.

To handle the high flow rates and large volumes of drilling fluid, the system uses three sets of GNZS596K double-deck shale shakers. These shakers are specifically designed for large-capacity applications and utilize the same size replacement screens for both the upper and bottom decks, ensuring ease of maintenance and consistent performance.

After the shale shakers, the system includes a 1500GPM mud gas separator, a vacuum degasser, and a mud cleaner to further treat the mud and remove gases, solids, and contaminants. 100hp centrifugal pumps are used to feed the desander and desilter units, ensuring proper flow rates and efficient separation of fine solids.

The system is also equipped with necessary mud agitators and mud guns to keep the mud in suspension and maintain optimal fluid properties during the drilling process.

This comprehensive mud system ensures that the 3000HP drilling rig operates efficiently, with advanced equipment for solids control, fluid management, and waste disposal.

Drilling Mud Rycycling Unit and Hydraulic Centrifuge for Overseas Client

The 500GPM mud recycling system has emerged as a workhorse solution for trenchless drilling operations in Horizontal Directional Drilling (HDD) and Coal Bed Methane (CBM) projects. GN Solids Control, a leading provider of solids control equipment, recently delivered a comprehensive 500GPM system tailored for an international client, showcasing its expertise in engineered solutions for complex drilling environments. This integrated system features a three-stage separation process housed within a robust action tank, combining primary solids removal via shale shaker with advanced fluid purification through a high-capacity mud cleaner.

At the heart of the system lies a dual centrifugal pump configuration strategically positioned on the tank’s inclined surface. These pumps ensure efficient feed distribution to both desilter and desander cones within the mud cleaner, enabling precise separation of particles down to 15μm. The modular design incorporates a lifting frame skid that supports the shale shaker and mud cleaner assemblies, facilitating rapid deployment and relocation between job sites—a critical advantage in dynamic trenchless drilling operations. Constructed from corrosion-resistant materials and equipped with adjustable baffles, the tank optimizes fluid dynamics while withstanding harsh drilling conditions.

Complementing this system, GN Solids Control engineered a full hydraulic centrifuge package specifically for coal mining applications. The GNLW223D-FHD mini-centrifuge represents cutting-edge technology in compact solids separation, capable of processing 15-25m³/h with exceptional separation efficiency. This unit integrates a dedicated holding tank and advanced control panel featuring PLC-based automation for real-time monitoring and parameter adjustment. Designed for continuous operation in demanding coalbed methane environments, the system’s compact footprint makes it ideal for space-constrained drilling locations while maintaining industrial-grade durability.

Both systems exemplify GN’s commitment to innovation and customization. The 500GPM solution incorporates API-compliant components and dual redundant safety features, ensuring compliance with international drilling standards. Meanwhile, the coal-specific decanter centrifuge package demonstrates the company’s ability to adapt technologies across different energy sectors. From shale gas exploration to underground coal mining, these systems enhance operational efficiency by reducing drilling fluid waste, controlling solids contamination, and minimizing environmental impact. With over two decades of experience serving global energy markets, GN Solids Control continues to set benchmarks in solids control engineering through its integrated solutions and client-centric approach, reinforcing its position as a trusted partner for complex drilling challenges worldwide.