Author: gnadmin

Centrifugal Pump and Solids Control Centrifuge for Africa Client

Recently 2 set of 1500HP drilling rig solids control equipments are ready for delivery to our Africa client. The equipments list including:


6 units of GNZS594J-SHBJ linear motion shale shaker, which is a single deck 4 panel high G force shale shaker. 3 units shale shaker per rig, total treating capacity can reach at least 1500gpm. The shaker screen installed on the shale shaker is produced compliant with API RP 13C standard. Not only for OEM shaker screens for GN own shale shaker, we also produce replacement shaker screens for world famous brand shale shaker. Pls contact with GN solids control for more information.


3 units of GNZJ594J-2S12N linear motion mud cleaner, the bottom shale shaker is same with the linear motion shale shaker, combined with 2 ea 10 inch desander cone and 12 ea of 4 inch desilter cone, the treating capacity is up to 1000gpm. It can be also act as back up shale shaker if required.
16 units of centrifugal pump, the centrifugal pump can be used as feeding pump of desander cone and desilter cone, it can be also used as trip pump, mixing pump, transfer pump, super charging pump.


2 units of GNLW452 decanter centrifuge, this is a middle speed decanter centrifuge which can be used for barite recovery, the separation cut point is 5~7 microns. If for low gravity solids separation, we can utilize high speed decanter centrifuge to separate the fine solids, or VFD decanter centrifuge can be introduced to be used for both barite recovery and LGS separation.


Except for the above equipments, GN solids control also provide vacuum degasser, mud agitator, mud gun,mixing hopper, mud gas separator, mud tank system, etc. We also provide decanter centrifuge, vertical cuttings dryer, high G drying shaker , screw conveyor, etc. drilling waste management equipments.

OBM Vertical Cuttings Dryer for Several Africa Customer

Recently several packages of OBM vertical cuttings dryer unit are delivered to several Africa customers. Some clients bought single drilling waste management equipments, including vertical cuttings dryer, decanter centrifuge, screw pump, screw conveyor, spare parts,etc. Some clients ordered the complete vertical cuttings dryer package, which including vertical cuttings dryer, decanter centrifuge with its feeding pump, telescopic skid for the vertical cuttings dryer and decanter centrifuge, fluids catching tank as an intermediate tank, the VFD control panel and feeding pump are installed on the telescopic skid for convenient transportation and operation.


Since 2012 till now, GN solids control has sold hundreds of OBM vertical cuttings dryer package to Africa clients for OBM drilling cuttings treatment and volume reduction treatment before feeding to Thermal desorption unit. With reliable working,long service life, easy operation and maintenance, GN vertical cuttings dryer and decanter centrifuge has got positive feedback from our clients at site, especially for the steadily working under hot weather in Africa.


GN vertical cuttings dryer has been updated to G version according to client’s feedback, the lastest version design has been the most user friendly and best performance, it is the ideal equipment for OBM drilling cuttings treatment. GNCD930G-GP vertical cuttings dryer working principal is that the motor drive the main pulley, the main pulley drive the gearbox cover via belt, the gearbox drive the bell jar assembly and screen basket assembly. Fix the gearbox input shaft, to make the gearbox output shaft speed lower than gearbox cover speed, to drive the rotor assembly in a lower speed than screen basket assembly speed. Then, the screen basket assembly and rotor assembly form same rotation direction separation machine with proper differential speed.


If you need vertical cuttings dryer, decanter centrifuge, screw conveyor for OBM drilling cuttings treatment, pls contact with GN solids control.

Desanding Plant and Mud Recycling System for Asia HDD client

Recently one batch of desanding plant and mud recycling system are ready for shipment for Asia HDD client.


The HDD mud recycling system is high configuration 500gpm multiple functional mud recycling system, with mud cleaning, recycling, mixing and storage function. It consists of double deck shale shaker with hydrocyclones, desilter cone feeding pump, mixing hopper, mixing pump, mud tank, mud agitator, mud gun, guardrails, walkway, stairs and pipelines. The working process is as below:
The picking up pump ( submersible slurry pump) pick up the used mud from mud pit and feed to GN mud recycling system shale shaker (coarse screen layer of the double deck shale shaker) to separate the coarse solids from the HDD drilling fluids, the treated mud dropped into the mud tank, the desilter feeding pump suck the mud from the mud tank compartment 1 and feed to desilter cone to separate solids cut points 15 microns, the treated mud dropped into desilter compartment , the user can add chemical additives into the mixing hopper to prepare for new drilling fluids with the treated mud, the new drilling fluids can be reused by the HDD machine. The discharged solids from desilter cone will be dried by the fine screen of the double deck shale shaker.


The desanding plant can be used for bored piling, pipe jacking, HDD project, TBM desanding project. We have 200gpm, 500gpm, 1000gpm and 1500gpm desanding plant for option according to client’s requirement. The main components of the desanding plant including double deck shale shaker with desander cone, catching tank, feeding pump and accessories. The user can prepare picking up pump, transfer pump, slurry storage tank, jet mud mixer unit locally.
Except for standard desander plant and HDD mud recycling system, GN solids control also provide customized desander unit and HDD mud recycling system.

Centrifugal Pump and Solids Control Centrifuge for Bolivia Customer

Recently one batch of centrifugal pump and solids control centrifuge are ready for shipment to our Bolivia customer, who owns already over 10 units of GN solids control centrifuges totally. These equipments will be used for drilling service of 2 units of drilling rig.


The centrifugal pump will be used as desander desilter feeding pump, trip pump, super charging pump for mud pump, mixing pump and other transfer pump. GN produced centrifugal pump with all the spare parts interchangeable with most of the international brand centrifugal pump, it will be convenient for our client for spare parts inventory. The pump casing and impeller are all made of hard ductile iron allow for longer abrasion resistant capability. The bearing are from top brand for reliable operation. Mechanical seal provide a better sealing performance, the pump skid to support pump is made from casting instead of welding for reliable operation and less vibration.


The solids control centrifuge is one of our core equipments among all the solids control equipments, we can provide it with fixed speed decanter centrifuge or VFD decanter centrifuge according to client’s requirement, the most common used model is GNLW363D-GP decanter centrifuge, the bowl diameter is 14 inch, the bowl length is 50 inch, the max bowl speed is 3900rpm, the typical bowl speed is 3200rpm, the separation cut point is 2~5 microns.


The VFD decanter centrifuge with a positive pressurized VFD control panel, it can be used for barite recovery, high gravity solids separation , low gravity solids separation. The VFD control panel with cooling tube or air conditioner when working in high temperature environment, PLC smart control with HMI interface for manual and automatic operation. We can provide ATEX, IEC EX for class 1 division 1 application.
Not only for solids control centrifuge, GN decanter centrifuge has been widely used for drilling waste management system, oil sludge treatment system, dewatering centrifuge and other industry use.

Drilling Waste Management and Solids Control Equipment for Europe Client

Recently one set of drilling waste management equipments and solids control equipments are ready for delivery to Europe Client. The major equipments list are as below:
1. 8 units of GNZS594J-SHBJ drilling fluids shale shaker, as the first phase separation solids control equipment, the shale shaker’s performance is the most important among all the solids control system, GN produced 4 panel shale shaker has been proved successfully as a good solids control primary shale shaker.


2. 2 units of GNZJ594J-2S12N drilling fluids mud cleaner


3. 2 units of drilling fluids decanter centrifuge, 1 unit decanter centrifuge will be used as solids control decanter centrifuge to separate fine solids from the drilling fluids, the discharged fluids will be mixed with proper chemicals as new drilling fluids for reusing; the other decanter centrifuge will be used as drilling waste treatment decanter centrifuge, which is used after the vertical cuttings dryer, it can be also used as dewatering centrifuge with chemical dosing unit.


4. 1 unit of vertical cuttings dryer, it is used for oil based drilling cuttings to reduce the oil content from the drilling cuttings, normally if the drilling cuttings is fresh generated and from primary shale shaker, the oil content on the cuttings will be below 5%, which can be used for landfill or construction industry, or it can be sent to TDU for further separation. The fluids after treatment will be fed to decanter centrifuge to separate the fine solids from the fluids, after treated by decanter centrifuge, the fluids can be reused to prepare for new drilling fluids by mixing with chemical additives, the drilling fluids will be reused for the drilling rig.


All of the above drilling waste management equipments and solids control equipments are CE certified and comply with Europe explosion proof standard. For further information, pls contact with GN solids control.