3 Package HDD Mud Reycling Unit for Europe Client

Recently three packages of HDD mud recycling unit are ready for delivery to Europe client, including 2 sets of GNMS-400C HDD mud recycling system and 1 set of GNMS-200C HDD mud recycling unit.


There are 2 types mud recycling unit produced by GN, the economic HDD mud recycling system are largely used in HDD mud cleaning and recycling without mud storage and mixing function, an extra storage tank and a mixing unit are needed. The self contained mud recycling system integrated with the function of mud recycling, mud storage and mud mixing, it can meet the large drilling rigs mud recycling requirement. We can produce different treating capacity mud recycling system, such as 200gpm, 400gpm, 600gpm, 1000 gpm and customized treating capacity mud system. They can be used for trenchless HDD project, CBM drilling, geothermal drilling, tunnel boring machine or bored pile project, water well drilling and diamond core drilling.


GNMS-200C HDD mud recycling unit is a 200gpm treating capacity mud recycling system, including double deck mud cleaner with hydrocyclones, feeding pump, mixing pump, mixing hopper, mud agitator and mud gun, the mud tank can be shipped by standard contaianer,
GNMS-400C HDD mud recycling system is a 400gpm capacity mud system, the total storage capacity is 8.5m3, the container shipping dimension is 6000mm x 2220mm x 2158mm. The mud cleaner is a double deck bottom shaker with 8ea of 4 inch desilter cone, with feeding pump and mixing pump.
Except for HDD mud recycling unit, we also produce TBM slurry separation plant, the features of TBM slurry separation plant including:
1. Complete package for Turnkey solution
2. Modular, pre-assembled and small footprint unit for easy and fast installation
3. 5 phase separation system to separate fine solids
If you need a customized mud recycling system solution, pls contact with GN solids control.

GN High G Drying shaker and mud agitator for Middle East Customer

One batch of GN High G drying shaker and mud agitator are shipped to Middle East customer.

The high G drying shaker is mainly used for water based drilling cuttings treatment, it can be also used for oil based drilling cuttings before or after vertical cuttings dryer, to reduce the solids content of the drilling cuttings and improve the separation efficiency of the vertical cuttings dryer and decanter centrifuge. The client can use different mesh size shaker screens for the drying requirement of the drilling cuttings.
GNZS594K-GZ high G drying shaker is the most popular model high G drying shaker, which is drived by 2ea 2.3HP vibration motor, the max G vibration G force is up to 8.0G and it is adjustable. 4pcs of composite material frame shaker screens are installed on the high G shaker, the screen area is 2.73m2, the deck angle is adjustable from -1°to +5°, the feeding method is hopper feeder. We can provide CNEX, ATEX and IEC EX for different requirement.


The mud agitator is used for drilling mud tank system, it is used for stirring and mixing of the drilling fluids to prevent the solids particles of drilling fluids from depositing in the mud tank system. Features of the GN G series mud agitator:
1. Helical bevel type gearbox is adopted, with compact structure, good agitating performance, reliable operation and less maintenance parts
2. The explosion proof motor is directly connected to the input shaft of the gearbox, compared with the E series mud agitator which with connection coupler, the structure is more compact, less wear parts, easier maintenance.
3. The combination of helical bevel type gearbox and explosion proof motor is good for working under harsh conditions
If you need high G drying shaker and mud agitator, pls contact with GN solids control.

16 Packages GN Solids Control Centrifuge for Offshore Drilling Company

Recently 16 packages of GN solids control centrifuges are shipped to offshore drilling company, this is the repeat order from this client.


The offshore decanter centrifuge package including one centrifuge with feed pump and solids discharge trough, one offshore skid, one fluids catching tank and transfer pump, one offshore used VFD control panel. All of the equipments are installed as compact unit for offshore application, the skid and decanter centrifuge lifting pad is designed comply with DNV 2.7-1 standard.
The decanter centrifuge motor and VFD control panel is adopted with offshore applied explosion proof standard. The ambient temperature to be used is -20℃ to +55℃.The standard atmospheric pressure is 80 Kp to 110Kp, normal oxygen content 21%, it can be used with altitude <1000m, relative humidity less than 95%. One centrifuge is composed of main bowl assembly, power drive system, feeding and discharge device and electrical control system.


The decanter centrifuge is widely used in the solids control and drilling waste treatment project, it works to separate the solids phase from drilling fluids, remove the harmful fine drilling solids such as debris in the drilling mud, or recover weighting materials such as barite , etc. as to save the drilling fluids cost. The decanter centrifuge can be used for both onshore and offshore projects, but the electric motor, control panel including VFD control panel, cables standard are different.
GN solids control can produce 9 inch bowl centrifuge, 14 inch bowl centrifuge, 18 inch bowl centrifuge, 22 inch bowl centrifuge, 30 inch bowl centrifuge, each size decanter centrifuge provides 2 models as rated frequency and variable frequency drive. Except for 2 phase decanter centrifuge, we also produce three phase decanter centrifuge to separate oil, solids and water for oily waste water treatment.
If you need a decanter centrifuge package, pls contact with GN solids control.

GN Decanter Centrifuge and Cuttings Dryer for Africa Drilling Company

One set of GN decanter centrifuge and vertical cuttings dryer are using for Africa drilling company. The equipments list including:
2 units of decanter centrifuge，model GNLW363D-VFD
1 unit of vertical cuttings dryer，model GNCD930G
Matched with screw conveyor, centrifuge feeding pump and vertical cuttings dryer flushing pump.


The screw conveyor GN produced including 10 inch, 12 inch, 14 inch, 16 inch and 18 inch diameter for option, each section standard length is 12 ft, we can use different quantity sections as per client’s requirement of transfer length, such as 12 ft, 24 ft, 36 ft, 48 ft, 2 sections are connected by pin shaft hanger. The screw conveyor can be fixed speed or variable speed( manually speed adjustable) to control the feeding rate. The screw propeller material is High Chrome Alloy Steel for longer working life.


According to the installation position and function of the screw conveyor, there are auger system for primary shale shaker discharge solids collection, desander desilter discharged solids collection, feeding to vertical cuttings dryer feed hopper, solids discharge auger for vertical cuttings dryer, solids discharge auger for decanter centrifuge, etc. The protection cover on the U type reinforcing beam could be closed steel plate or steel grating for option.
Additional safety protection of the screw conveyor:
1) Pull chord emergency stop with wire rope to be provided along the length of Augur for Emergency stop；
2) Audio / visual alarm system on the auger control panel which will be automatically activated once the power is switched on followed by the actual auger startup with a safety delay time. Audio / visual alarm system to be in the OFF mode after some time once the auger starts operation.


If you need decanter centrifuge, vertical cuttings dryer, feeding pump, screw conveyor, pls contact with GN solids control.

GN Decanter Centrifuge System for Africa Oilfield Waste Water Treatment

Recently one set of GN decanter centrifuge separation system are ready for shipment to Africa oilfield waste water treatment project. The system including mixing module, decanter centrifuge separation module, chemical dosing unit module, water recovery and transfer module.


The mixing module including mixing tank with mud agitator, to mix the oilfield waste water, the decanter centrifuge feeding pump will suck the water from the mixing tank to decanter centrifuge, at the same time, the chemical dosing unit will prepare the mixed chemicals and the screw pump will transfer the chemicals to centrifuge feed tube, so the decanter centrifuge can treat the waste water better, the treated water will flow to the water recovery tank and will be transferred to other tanks by the transfer pump.


The decanter centrifuge can separate the waste water into solids phase and liquid phase, GN also produce three phase decanter centrifuge, to separate the waster water into oil, water and solids. A three phase decanter centrifuge uses continuous high G centrifugal force to separate components based on density differential. The three-phase separation (solids, water, oil) happens because:
Solids (highest density) move to the bowl wall.
Water (middle density) forms an intermediate layer.
Oil (lowest density) forms an inner layer (if present in sufficient quantity).

GN decanter centrifuge features including:
1. The bowl and screw core shaft are made of duplex stainless steel SS2205 or SS2304 by centrifugal casting, which is superior to the performance of SS304 and SS316;
2. The solids outlet and liquid outlet are protected by replaceable hard alloy sleeve.
3. The main material of the screw is duplex stainless steel SS2205 or SS2304.
4. The screw propeller is protected by tungsten carbide tiles for longer working life.

For more information of GN decanter centrifuge separation system, pls contact with GN solids control.