Author: gnadmin

Drilling Mud dewatering centrifuge Unit for Europe Client

Recently 2 sets of drilling mud dewatering centrifuge units are ready for shipment for Europe client. Each set of dewatering centrifuge unit including 1 set of GNLW364FT dewatering centrifuge, 1 set of chemical dosing system, 1 set of feeding screw pump and 2 sets of containers.


The GNLW363FT dewatering centrifuge is a 2 phase separation decanter centrifuge, the bowl diameter is 14 inch, the bow length is 59.5 inch, the bowl L/R ratio is up to 4.2, the max speed is 3900rpm, the max G force is up to 3063G, the beach angle will be designed as per the application.
The bowl main parts are made of duplex stainless steel SS2205 or SS2304 by centrifugal casting, which is superior to the performance of SS304 or SS316L. The slag outlet and mud distribution port is protected by the replaceable hard alloy sleeve, the carbide scraper are installed on the top and side of the slag discharge port of the bowl. The main material of the screw is duplex stainless steel SS2205 or SS2304. The centrifuge main motor, back motor and pump motor is controlled by the positive pressurized VFD control panel. The centrifuge feeding pump is made of Netzsch brand screw pump to adjust the feeding rate by adjust the motor frequency.


The chemical dosing system is customized design as per client’s requirement, including automatic powder chemical dosing system and manual liquid chemical dosing system, it can be used for both powder chemical and liquid chemical preparation, storage and dosing.
All the equipments are installed in the container for convenient transportation and operation.


Except for GNLW363FT dewatering centrifuge, GN solids control also produce other size decanter centrifuge, including 9 inch bowl, 14 inch bowl, 18 inch bowl, 22 inch bowl, 30 inch bowl, with L/R ratio 3 or 4 for different requirement.

Screw Conveyor and Solids Control Equipment for Middle East Drilling Company

One batch of screw conveyor and solids control equipments are ready for shipment to Middle East Drilling Company. The equipments list including screw conveyor, shale shaker and mud cleaner as below:


Screw conveyor GNSC14-48, it is U type screw conveyor for continuous conveying without flexible traction. It is used to collect the drilling cuttings and transfer the drilling cuttings to drilling waste treatment system. The screw conveyor can be covered with closed steel plate or steel grating plate for option. The transfer length can be optional with different quantity sections, each section is 12ft, the length can be 12ft, 24ft, 36ft and 48ft. The screw blade are made of wear resistant and thicker manganese steel. The bearing is from NSK or FAG, the reinforced frame of the screw conveyor is with high strength to be suitable for horizontal or inclined installation.


Shale shaker GNZS594, it is a 4 panel linear motion shale shaker widely used for oil & gas drilling mud cleaning, the shaker screen is composite material frame shaker screen compliant with API RP13C standard. The single deck shale shaker is with reliable performance, easy operation and maintenance, cheaper operation cost.


Mud cleaner GNZS594-2S16N, the mud cleaner is a desander cone, desilter cone and bottom shale shaker 3 in 1 equipment, which is used after the primary shale shaker for the second phase and third phase cleaning of drilling mud. The bottom shale shaker model is same with the shale shaker GNZS594. The treating capacity is up to 1000gpm with 2ea of 10 or 12 inch desander cone, 16 ea of 4 inch desilter cone.
Except for shale shaker, mud cleaner and screw conveyor, GN also produce drilling mud decanter centrifuge and drilling waste treatment decanter centrifuge, vertical cuttings dryer and high G drying shaker,pls contact with GN solids control.

Double Deck shale shaker and cuttings dryer for Africa drilling company

One set of double deck shale shaker and one set of vertical cuttings dryer are ready for shipment to Africa for drilling cuttings treatment system.
The double deck shale shaker will be applied as high G force drying shaker to separate the coarse solids, it can be used for both water based drilling cuttings and oil based drilling cuttings. The anti splash cover on the top to prevent the drilling mud from splashing. The top layer and bottom layer total 6pcs shaker screens are composite material frame for longer working life and better separation performance.


The vertical cuttings dryer is ideal equipment to be used for oil based drilling cuttings treatment, after treatment, the oil content on the cuttings is below 5%, the fluids will flow to an intermediate tank, then feed the fluids to decanter centrifuge for further treatment, the fine solids will be separated out by decanter centrifuge, the fluids can be reused for drilling. Before treated by decanter centrifuge, the fluids can be treated by drying shaker to reduce solids content, it will increase the decanter centrifuge treating capacity and performance, also it can prevent the centrifuge bowl from damaged by the high solids content.


GN standard drilling waste management system GNCM-40A is consist of VFD decanter centrifuge, vertical cuttings dryer, flushing pump, centrifuge feeding screw pump, fluids collection tank, skid, electric control system, accessories. The compact design with small footprint is loaded into standard container.
Except for drying shaker and vertical cuttings dryer, GN solids control also produce drilling waste treatment decanter centrifuge, including high speed decanter centrifuge, VFD decanter centrifuge, Fully Hydraulic Drive decanter centrifuge, we provide different explosion proof standard for option, IEC EX, ATEX, CNEX. For more information about high G drying shaker and vertical cuttings dryer, pls contact with GN Solids Control.

Mud Mixing System and recycling unit for HDD company

One unit of 500gpm mud recycling unit GNMS-500K and one set of 20m3/h mud mixing system are ready for shipment to HDD company.
Compared with old model 500gpm mud recycling unit GNMS-500D, the new designed GNMS-500K is with the features as below:


1. New model double deck shale shaker GNZS754K instead of GNZY753E for larger screen area, the GNZS754K shale shaker with top screen area 1.4m2, bottom screen area 1.4m2, total screen area is 2.8m2. GNZY753E shale shaker with top screen area 0.875m2, the bottom screen area is 1.35m2.
2. Different hydrocyclnes, the old GNMS-500D mud recycling unit with 1ea of 10 inch desnader cone, the new GNMS-500K mud recycling unit with 10 ea of 4 inch desilter cone, the separation cut point is reduced from 40 microns to 25 microns.
3. Different hydrocyclone feeding pump, to reduce the footprint of the mud recycling unit and increase effective mud tank capacity, we changed the horizontal centrifugal pump ( which is installed on the tank skid) to submersible slurry pump ( installed vertically), the motor power is also reduced. During shipment, the motor can be removed and lay down to reduce the height of the recycling unit to load it into the standard container, the hydrocyclone frame will be also removed to fit for container shipment.
4. Reduced power consumption of the mud recycling unit, the total power is reduced.


The mud recycling unit can be customized for different mixing capacity and mixing tank capacity. The mixing hopper and mixing pump can be installed on the mixing tank skid for convenient movement, also they can be installed on a separate skid and connect with mixing tank.
Except for the compact design mud recycling unit, GN solids control also produce self contained mud recycling system with mud cleaning, recycling, mixing, storage function.

Shale shaker and mud cleaner for offshore drilling company

Recently one batch of shale shaker and mud cleaner are ready for delivery to offshore drilling company.
The shale shaker model is double deck shale shaker GNZS596K ,the top layer screen is 2pcs of composite material frame shaker screen, the bottom layer screen is 4pcs of composite material frame shaker screen, total 6pcs shaker screens, and total screen area is 4.09m2, with pyramid screen total area is 5.3m2.The deck angle is adjustable while working, the deck angle adjustment range is -1º~+5 º, the weir height is 958mm, the feeding method is hopper feeder. 2ea of 2.2KW Oli brand vibration motor drived the shale shaker, the vibration G force is up to 7.5G, and it is adjustable. The vibration motor and starter is explosion proof and we have CNEX, ATEX, IEC EX for option. The bottom discharge trough and side discharge trough for option according to site condition. Also we can provide linear motion or elliptical motion shale shaker as per client’s requirement.


The shaker screen is fixed by wedge and operated from the outside of the shaker deck, it adopts mechanical synchronous adjustment for shaker deck angle, it is made of stainless steel for better corrosion resistance. Wear resistant polyurethane rubber strip on the shaker deck for better sealing performance. The detachable and fast open splash proof cover is to prevent mud splashing to keep the rig site cleaning.


The mud cleaner is a combination of desander cone, desilter cone and bottom shaker, the treating capacity is 500gpm, 1000gpm and 1500gpm for option. The shaker screen for bottom shale shaker is same with double deck shale shaker for convenient inventory.
Except for shale shaker and mud cleaner for offshore drilling, we can also provide decanter centrifuge, vacuum degasser, mud agitator, centrifugal pump, mud transfer pump and other solids control equipments.