Monthly Archives: November 2023


Desander in solids control is a crucial component in the process of drilling fluids management within the oil and gas industry. Its primary purpose is to remove solid particles, such as sand and silt, from drilling fluids to maintain the desired properties of the fluid and enhance the efficiency of drilling operations. The main function of a desander is to separate and remove larger solid particles, typically ranging from 40 to 100 microns, from the drilling fluid. By removing these solids, the desander helps maintain the rheological properties and stability of the drilling fluid, ensuring it can effectively carry cuttings to the surface. The core component of a desander is a set of hydrocyclones arranged in a manifold. These cyclones use centrifugal force to separate solid particles from the drilling fluid. Drilling fluid containing solids enters the desander through an inlet pipe, and the cleaned fluid exits through an outlet pipe. The separated solids are discharged through the underflow port, while the cleaned drilling fluid exits through the overflow port. Drilling fluid, often called mud, enters the desander unit at high pressure through the inlet. The hydrocyclones in the desander create a swirling motion, causing heavier solid particles to move toward the outer wall and exit through the underflow port. The cleaned drilling fluid, with reduced solid content, exits through the overflow port. Desander solids control is typically part of a larger solids control system that includes other equipment like shale shakers, desilters, and centrifuges. These components work together to ensure the drilling fluid meets specified criteria for reuse in the drilling process. By maintaining the quality of the drilling fluid, desander solids control contributes to efficient drilling operations. Removing abrasive solids helps protect downstream equipment, such as pumps and mud motors, from wear and damage. Regular maintenance is essential to ensure the proper functioning of desander solids control equipment. This includes monitoring and cleaning the cyclones and checking for any wear and tear. Desanders play a crucial role in the overall solids control process, helping to enhance the efficiency and cost-effectiveness of drilling operations in the oil and gas industry. At GN we provide our customers with customized desanders, according to their functions and operations. We can attach them to shale shaker, and with desilters or by it self. Keeping your operations running sound and well.




A desilter is a device used in the oil and gas industry to remove fine particles (usually sand and silt) from drilling fluids. Drilling fluids, also known as mud, are essential in the drilling process as they help cool and lubricate the drill bit, carry cuttings to the surface, and provide stability to the wellbore. Desilters are part of a larger system called a solids control system, which is designed to separate and remove solids of various sizes from the drilling fluid. The desilter specifically targets smaller particles, typically in the range of 15 to 44 microns. It follows the larger solids removal equipment called desanders, which focus on particles in the range of 50 to 70 microns. The desilter typically consists of a set of hydrocyclones, which are cone-shaped devices that use centrifugal force to separate solids from the drilling fluid. The clean fluid is then returned to the drilling process, while the separated solids are usually discarded or treated for disposal. Efficient solids control is crucial in drilling operations to maintain drilling fluid properties, prevent equipment wear, and enhance overall drilling efficiency. Desilters play a specific role in this process by targeting the removal of fine particles from the drilling fluid. GN desilter is the third class solids control equipment to treat the drilling fluids. According to the size of the cone diameter, they are divided into Desander and Desilter. Usually the cone diameter is less than 6″is called Desilter, and used as the third-control equipment in drilling operation. We commonly used 5 “and 4” cone to separate solid-phase particle size 15-47μm in the drilling fluid. Based on customer requirements and capacity, we can select groups of cone into Desilter.GN Desilter works very well with Solids control system other equipments. The GN Mini Mud Cleaner is innovative products for drilling fluids cleaning. The traditional desander desitler without Shale Shaker is only available for unweighted drilling mud.The traditional mud cleaner is oversized for some applications,and the mud cleaner is relatively more expensive. The innovative GN Mini cleaner is an ideal option for both weighted and unweighted drilling mud with the most cost effective solution for drilling. Further more, the GN Mini Cleaner is the best choices for small mud system for HDD,CBM, water well drilling, mining exploration industry etc. Usually a second phase for your operation, but according to your needs and how your operation is planned, you can use desilter at any point and have it recycled process to get the product processed. GN desilter by itself or attached with other equipment, it will process your product with ease and makes your operation to be executed with ease.

Vacuum Pump

Vacuum systems for solid waste, also known as pneumatic waste collection systems or vacuum waste systems, are an innovative and efficient way to handle and transport solid waste, At GN our vacuum pump, also named as solids transfer pump,  is a pneumatic slurry transfer vacuum pump for liquid ,slurry, and solids transfer. Since it’s a high vacuum loading solids transfer pump, so it can be used at tough environmental for solids or sludge transfer with high working performance and less maintenance. The pump can transfer material with high gravity and high density, with dry solids material or slurry with solids content max. up to 80%. It can be used in multiple industries, such as waste removal, cleaning tanks, or any solids removal up to 2 inches can be processed through our vacuum pump. This is some of the material that can be transferred through our vacuum pump. Waste mud and waste solids discharged from shale shaker, mud cleaner and centrifuge transfer. drilling mud transfer, waste pit cleaning, hazardous waste recovery, oil sludge, tank bottoms residual removal and transfer, barge holdings and vessel bottom clean out, bulk tank and silo transfer of material, sand – course, fine, conventional and frac sand, diatomaceous earth, and animal waste, etc. A vacuum pump creates a pressure difference in the pipe network, causing the waste to be transported pneumatically through the pipes to the central collection station. Vacuum systems offer several advantages, including reduced manual labor for waste collection, lower operational costs, and increased flexibility in waste disposal. They can also be more environmentally friendly by promoting recycling and reducing the need for large waste collection vehicles. Vacuum systems for solid waste have been implemented in various cities around the world as part of smart city initiatives and sustainable urban development projects. They offer a modern and efficient alternative to traditional waste collection methods. The closed nature of the system helps maintain a hygienic and odor-free environment, improving the overall cleanliness of the area. When selecting a vacuum pump, it’s essential to consider factors such as pumping speed, ultimate vacuum level, chemical compatibility, and maintenance requirements. Additionally, proper installation and regular maintenance are crucial to ensuring the efficient and reliable operation of vacuum pumps. For GN, we are the second company in the world that develops this type of vacuum pump. What ever your purpose of the usage of this type of vacuum pump, it will deliver the best performance and as it is designed to be user friendly. We made one of the best solutions, that changed and assisted a of business in their operations.


GNSP 40 Solids Vacuum Pump 3                                                                                                                                                    GNSP 20 Solids Vacuum Pump 2


Centrifugal Pump

A centrifugal pump is a type of pump that uses the kinetic energy of a rotating impeller to move fluid. It’s one of the most common types of pumps and is widely used in various industries for transporting liquids. GN SB series Centrifugal Pump is used to transfer drilling mud. It can be used as feeding pump for desander, desilter, or used as a mixing pump for Jet Mud Mixer. It can also be used as a trip pump, and supercharging pump for a rig mud pump. All GN model centrifugal pump use tungsten carbide mechanical seal, with famous brand Bearing. Spare parts interchangeable with most of the international Brand pump which helps customer to source spare parts easily. Open impeller design allows lowers axial thrust loads. It makes it easier for installation, repair and maintenance. A centrifugal pump is a type of pump that uses the kinetic energy of a rotating impeller to move fluid. It’s one of the most common types of pumps and is widely used in various industries for transporting liquids. The key component of a centrifugal pump is the impeller, which is a rotating disk with curved blades. The impeller is typically mounted on a shaft that connects to a motor or another power source. The impeller is housed in a casing that contains the liquid. The casing is designed to gradually expand in diameter as it approaches the outlet, creating a volute shape. Operation: When the impeller rotates, it imparts kinetic energy to the liquid, causing it to move radially outward. As the liquid moves through the impeller, it also gains velocity. The rotation of the impeller generates centrifugal force, which creates a low-pressure area at the center of the impeller. This low pressure draws more liquid into the impeller. The volute casing helps convert the high-speed, low-pressure liquid exiting the impeller into high-pressure fluid. It does this by slowing down the flow and converting velocity energy into pressure energy. The pressurized fluid is then discharged through the pump outlet. Centrifugal pumps are preferred for their simplicity, efficiency, and versatility. They are commonly used in water supply systems, wastewater treatment, irrigation, chemical processing, petroleum refining, and many other applications where the transport of liquids is required. There are various types of centrifugal pumps, including single-stage pumps and multi-stage pumps, each suited to different applications based on factors such as flow rate and head (pressure) requirements.