Author: gnadmin

An Overview of Solid Vacuum Pumps, Vibrating Screens, Sand Pumps, and Agitator

In the drilling industry, efficient and reliable equipment is essential for the smooth operation of drilling projects. Among the critical components of a drilling system are solid control equipment, which includes solid vacuum pumps, vibrating screens, sand pumps, and agitators. This article aims to provide an overview of the principles behind these devices and their applications in the context of an Asian drilling company.
1.Solid vacuum pumps, also known as vacuum degassers, play a crucial role in the removal of unwanted gas, such as hydrogen sulfide and methane, from drilling fluids. These pumps utilize a vacuum chamber and a rotating impeller to create a low-pressure environment, allowing gas bubbles to escape from the drilling fluid. The degassed fluid is then returned to the active mud system, enhancing its performance and reducing the risk of gas-related hazards.
2.Vibrating screens, commonly referred to as shale shakers, are utilized to separate solid particles from drilling fluids. These screens consist of multiple layers of mesh screens that vibrate in a controlled manner. As drilling fluids pass through the screens, solid particles larger than the mesh openings are retained, while the fluid and smaller particles pass through. This process effectively removes undesirable solids, preventing equipment damage and improving drilling efficiency.
3.Sand pumps are essential components of the solid control system, responsible for transferring drilling fluids with high concentrations of sand and other solids. These pumps are designed to handle abrasive materials and maintain a consistent flow rate. By efficiently transporting the fluid, sand pumps prevent blockages in the drilling system and ensure the continuous circulation of drilling fluids.
4.Agitators, or mud agitators, are used to maintain the homogeneity of drilling fluids by preventing the settling of solids. These devices consist of a motor-driven impeller that rotates within the mud tank, creating a gentle turbulence. By keeping the solids in suspension, agitators prevent the formation of a stagnant layer at the bottom of the tank, ensuring consistent fluid properties throughout the drilling process.
 
In the drilling industry, the effective management of solids in drilling fluids is crucial for the success of drilling operations. Solid control equipment, including solid vacuum pumps, vibrating screens, sand pumps, and agitators, play a vital role in maintaining the quality and performance of drilling fluids. By removing unwanted gas, separating solids, and maintaining fluid homogeneity, these devices enhance drilling efficiency, minimize downtime, and reduce the risk of equipment damage. For the Asian drilling company, investing in reliable and advanced solid control equipment is essential to ensure the smooth and safe operation of their drilling projects.

Solids Control Equipment and pumps for Asia Drilling Company

One batch of solids control equipments and pumps are ready for delivery to Asia Drilling company, including solids vacuum pump, shale shaker, centrifugal pump, mud agitator.


The mud agitator is consist of explosion proof motor and heavy duty helical bevel gearbox, skid, agitator shaft, impeller ( double layer or single layer, different size impeller), stabilizer, etc. We can provide 4HP, 7.5HP, 10HP,15 HP, 20HP, 25HP, 30HP mud agitator for your selection.


Centrifugal pump can be used as transfer pump, mixing pump, charging pump, trip pump, feeding pump of desander, desilter, mud cleaner and decanter centrifuge, and also jetting pump of vacuum pump. We can provide different size centrifugal pump for your different applications.
Features of GN centrifugal pump:
Pump impeller made from hard ductile iron alloy, Pump casing made from hard ductile iron alloy, which will increase abrasion resistance capability. The spare parts are interchangeable with popular model centrifugal pump in the world. High quality no-adjustment mechanical seal to avoid leakage. Skid is made from casting instead of welding to provide reliable operation and lead to less vibration.


The solids vacuum pump is a mobile type 100% air operation transfer pump, no need electricity power, suitable for hazardous area application. Continuously working 7/24 automatically is available for easy operation and maintenance. It can be used to transfer the slurry with solids content up to 80%, the maximum solids size is up to 50mm or 75mm. The horizontal discharge distance is up to 500~1000m.It can be used to transfer drilling fluids, drilling waste, hazardous waste, oil sludge, tank bottom residual, animal waste, sand, fine solids, soil, etc.


Shale shaker is one of GN major solids control equipments and best seller equipment, we can provide 2 panel shale shaker, 4 panel shale shaker, 5 panel shale shaker and 6 panel shale shaker (double deck shale shaker).

GN Slurry Dewatering System for Construction Industry to New Zealand

One set of GN Slurry Dewatering System for Construction Industry are ready for delivery to New Zealand. Features of GN slurry dewatering system including:
1) Complete package design to provide Turnkey solutions
2) We have rich field proven experience
3) 5 phase separation system to reach better treatment result
4) Modularized system for fast installation and flexible movement
Why we use GN slurry dewatering system?


We provide customized design, customized painting color, after-sales service and training of the client’s engineer. The solution is to use liquid and solids separation equipment to treat slurry from Hydrovac or HDD project, to collect reuseable material for construction and discharge the treated clean water. Normally the slurry should be contaminant free which is from horizontal directional drilling for replacement of underground pipes or other private construction.
The system is consist of several modular as below:

  1. GNLMP1536 Mining vibrating screen modular, a mining vibrating screen installed on top of a mud tank, the coarse solids, rubbish, stones, branch, etc. big materials are separated out, and the slurry drop into the mud tank.
  2. GNZJ706 Double deck shale shaker fine mesh modular, the double deck shale shaker is installed on top of a mud tank, a submersible slurry pump pick up the slurry discharged from mining vibrating screen and feed to the double deck shale shaker, the fine solids from the slurry are separated out by the top layer shaker screen and bottom layer shaker screen, totally there are 6pcs composite material frame shaker screens are utilized, total screen area is up to 4.63m2.
  3. GNZJ594J-12N Desilter modular, the separation cut point is 20 microns.
  4. GNLW553D Big bowl dewatering centrifuge modular, the mechanical separation cut point is 5 microns. With chemical dosing unit, the ultra fine solids can be separated out and get dry solids and clear water.
  5. Chemical dosing unit modular

Solids Control Centrifuge and Vacuum Degasser to Asia Client

One batch of solids control centrifuge, vacuum degasser and shale shaker are ready for delivery to our Asia client.


Decanter centrifuge, vacuum degasser and shale shaker is our most popular solids control equipments, the shale shaker is the first phase cleaning of drilling fluids, the primary shale shaker will separate the drilling cuttings and reduce the solids content in the drilling fluids, the fluids dropped into the sand trap, the desander cone and desilter cone is the second and third phase cleaning of drilling fluids, the feeding pump of desander suck the discharged fluids from shale shaker and feed to desander cone, the feeding pump of desilter cone suck the treated fluids from the desander cone and feed to desilter cone. The treated fluids from desilter cone can be reused to prepare for new drilling mud in the mixing tank with mixing hopper and mixing pump, sometimes when silt accumulated in the drilling fluids.

Decanter centrifuge will be applied to separate the ultra fine solids, the clean fluids discharged from solids control centrifuge will be storage in a separate tank/ compartment, which will be used to prepare for new drilling fluids and reused by the drilling rig.
The decanter centrifuge produced by GN solids control can be high speed or variable frequency drive or fully hydraulic drive decanter centrifuge, the explosion proof standard CNEX, ATEX and IEC EX for option according to our client’s requirement. We can produce different size decanter centrifuge 9 inch, 14 inch, 18 inch, 22 inch with different bowl length as your required treating capacity. Except for drilling fluids decanter centrifuge, we can also produce decanter centrifuge for drilling waste management project, oil sludge treatment project, waste water treatment, dewatering unit application.


For more information of solids control decanter centrifuge, vacuum degasser, shale shaker, pls contact with GN solids.

10 Sets Fully Hydraulic Drive Centrifuge for Drilling Mud to North Africa

Recently 10 sets of fully hydraulic drive decanter centrifuge for drilling mud cleaning are ready for delivery to North Africa.
The technical configuration is as below:


Model : GNLW363D-FHD
Bowl diameter: 14 inch (360mm)
Bowl length: 50 inch (1271mm)
The max speed is up to 3600rpm, the max G force is up to 2610G
The drive system is fully hydraulic drive system with adjustable speed, we use the reliable brand FHD system for reliable operation.


The Fully hydraulic drive decanter centrifuge can be utilized for oil and gas drilling solids control system, drilling waste management project, oil sludge treatment project, HDD mud recycling, , HDD tailing slurry dewatering, TBM slurry separation, construction engineering mud treatment, mining slurry separation, etc. Compared with VFD ( variable frequency drive) decanter centrifuge, the FHD centrifuge can be applied for heavy duty, simple operation, more flexible to meet the different working conditions.
Features of GN FHD decanter centrifuge:

  1. The centrifuge bowl assembly use high level stainless steel material, duplex stainless steel SS2205 or SS2304 by centrifugal casting, which is superior to the performance of SS304 and SS316.
  2. Multi speed balancing of different rotation parts to ensure the stable operation of the centrifuge under the high speed working condition.
  3. Screw blade is protected by tungsten carbide tiles, which is adjustable once damaged. Compared with hard facing wear resistant coating, it can last longer and the further maintenance cost is cheaper for the long run operation.
  4. The solids outlet and mud distribution port is protected by replaceable hard alloy sleeve.
  5. The carbide scrapers to protect the bowl and prevent it from wear. The 360 degree rectangular slag discharge port for smooth discharge and avoid blocking the bowl inside.
    For more information of the fully hydraulic centrifuge, pls contact with GN solids control.