Monthly Archives: July 2023

Mud cleaner and drilling waste management system ready for shipment

Recently one set of mud cleaner and drilling waste management system with auger transferring system are ready for shipment to international drilling company, they will be installed at same rig site. The equipments list is as below:

Mud cleaner, which is a combination of desander cone, desilter cone and bottom shale shaker, the treating capacity is 1000gpm, the shaker screen installed on the bottom shaker is 4pcs of 585x1165mm shaker screen with 3 layers of stainless steel 316L material wire mesh, the shaker screen is produced comply with API RP13C standard.

Cuttings transfer system, including 2 units of 12ft screw conveyor to pick up the discharged drill cuttings from decanter centrifuge and vertical cuttings dryer and transfer them to the cuttings collection box automatically. The telescopic skid supporting system is included according to rig layout.

Drilling waste management system, standard design for OBM and SOBM cuttings treatment, including vertical cuttings dryer, VFD decanter centrifuge, flushing pump, centrifuge feeding pump, centrifuge telescopic skid, vertical cutting dryer telescopic skid and fluids collection tank skid, with integral electric control system, accessories.
Vertical cuttings dryer GNCD930 has been widely used to separate coarse solids from drilling waste, the discharged solids discharged from solids outlet port and transferred by screw conveyor to skip, the oil on the cuttings will be normally less than 5%~10% depends on different drilling waste, the recovery fluids will flow to intermediate tank for fluids collection, the centrifuge feeding pump will feed the fluids to decanter centrifuge to separate fine solids, the separation cut point is 2~ 5 microns, the treated fluids can be reused to prepare for new drilling fluids for drilling rig. If it is for final disposal process, we will use oil water separator or dewatering unit to separate it as little solids, oil and water. The water will be sent to waste water treatment facility, the oil be recovered, solids to TDU.

Decanter centrifuge, vertical cuttings dryer and screw conveyor are ready for shipment

Recently one batch of drilling waste management equipments are ready for shipment to our international clients, the equipments list including:
1) One unit of vertical cuttings dryer GNCD930, it can be widely used for treatment of drilling cuttings discharged from oil based mud (OBM) and synthetic based mud (SBM), the standard speed is 900rpm and G force is up to 420G, VFD drive is available for adjusting speed to maximize the vertical cuttings dryer performance. The cuttings dryer flights on the rotor is hard facing to HRC65 for longer working life. It equipped with individual oil lubrication system with automatic alarm for pressure limit. The main motor and oil pump motor is interlocked with each other to avoid the start of the main motor prior to the oil pump motor start.

2) Two units of VFD decanter centrifuge GNLW363D-VFD, the VFD control panel is a positive pressurized control panel with air conditioner for cooling, applicable for zone 1 and zone 2. VFD from Yaskawa, ABB or Siemens brand, PLC and touch screen are from Siemens and other famous brand. Circuit breakers and other components from Schneider or other brands.

3) Two units of fixed speed decanter centrifuge GNLW363D, we can provide different speed pulleys according to client’s requirement, the centrifuge bowl diameter is 14 inch, and the centrifuge bowl length is 50 inch, the treating capacity will varies according to different material and speed.
4) Five units of Germany Netzsch brand screw pump GNG20-055C
5) Five units of Germany Netzsch brand screw pump GNG30-075C
6) Two units of screw conveyor with spare screw scroll set for replacement GNSC14B-36 with local control panel

7) One unit of spare parts, such as stator, rotor, explosion proof motor, etc.
For more information about drilling waste treatment equipments, pls contact with GN Solids control.

3-Phase Disc Stack Separator for Overseas Vegetable Oil Separation

Recently one unit of 3-Phase Disc Stack Separator are ready for shipment for Overseas Vegetable Oil Separation. The technical configuration is as below:

Centrifuge Model:GNSD225
Centrifuge Bowl diameter:810 mm
Piston diameter:730 mm
Treating capacity:30-40 m3/h
Rotation speed:4500 RPM
Motor power:75kw
Drive type:Belt drive
Start time:8~15min
Stop time:30min
The centrifuge bowl, collection box, big piston material is made of duplex stainless steel SS2507
Control system: VFD control panel with Siemens PLC, ABB drive, Schneider touch screen, operation screen in EN/CN language
Filter: Including sealing water filter. Produced according to food grade, all seals are made of fluororubber.

Except for Vegetable Oil Separation industry, the 3 phase disc stack separator can be also used for oil sludge separation unit with customized design according to material to be treated.
For oil sludge treatment system, we have option of 3 phase decanter centrifuge and 3 phase disc stack separator according to client’s requirement. The effective pre-treatment process should be done before centrifuge separation process, including pre-mixing tank ,coarse screening unit and 2 phase decanter centrifuge separation unit, which can reduce solids content effectively.
There are 4 models of 3 phase disc separator for option, GNSD-40, GNSD-90, GNSD-125, GNSD-225, it can be selected by required capacity. The 3 phase decanter centrifuge with a separation factor of approx. 3000G, and 3 phase disc stack separator G force is up to 12000G. The 3 phase disc separator can more thoroughly separate liquids with different specific gravity and the liquid phase discharged is more clarified. But the complicated operation of the 3 phase disc separator will limit its usage.
If you need a two phase decanter centrifuge, three phase decanter centrifuge, three phase disc stack separator to treat your material, pls contact with GN solids.

Offshore lifting standard vacuum degasser and decanter centrifuge ready for shipment

Recently one unit of offshore lifting standard vacuum degasser and offshore lifting standard VFD decanter centrifuge are ready for shipment to international client. The equipments will be used for offshore drilling project.
Features of GNZCQ270B vacuum degasser:
1) Stainless steel material cabinet for corrosion resistance
2) Self contained vacuum degasser without jetting pump
3) Ultrasonic controller t prevent vacuum or liquid to an undesired high level for option
4) Offshore lifting standard frame with the vacuum degasser for safety lifting when movement
5) Horizontal installed vacuum degasser, compact structure, easier operation
6) Treating capacity up to 1200gpm, the vacuum is -0.02~-0.04Mpa, main motor power is 30HP, vacuum pump power is 10HP
7) The vacuum degasser is suitable for various mud recycling system, it is important in restoring the specific gravity of mud, stabilizing the viscosity of mud, and reducing drilling cost.

Features of GNLW363D-VFD decanter centrifuge:
1) Stainless steel material positive pressurized VFD control panel with self cooling system, with PLC smart control from Siemens and other famous brand
2) Main motor, back drive motor and pump motor 3 VFD from Yaskawa, ABB or Siemens brand
3) The centrifuge skid comply with offshore lifting standard
4) The centrifuge bowl main components are made of duplex stainless steel 2205 or 2304 by centrifugal casting, which is superior to the performance of SS304 and SS316L.
The other components are made by SS316L to avoid intergranular corrosion and incomplete residual stress release caused by traditional welding process.

5) The solids outlet and liquid outlet are protected by tungsten carbide insert and it is replaceable
6) The SKF brand bearing for longer and reliable working life
7) The screw blades are protected by tungsten carbide tiles and it is repairable
If you need vacuum degasser and decanter centrifuge, pls contact with GN solids control.