Author: gnadmin

One unit of waste pit cleaning vacuum pump and decanter centrifuge are ready for shipment to Asia client. The working process is that the solids vacuum pump suck the waste sludge from waste pit, and dilute it with water and agitating, then the slurry is feed to decanter centrifuge for dewatering process. The mechanical separation of decanter centrifuge cut point is 2~5 microns, with chemical dosing unit, the separation performance will be improved.

For the waste sludge which with high solids content and high viscosity, it can not be treated by decanter centrifuge directly due to the limit of centrifuge feeding tube. The solids content should be reduced by dilution the sludge by water in the mud mixing tank, if necessary, heating process should be applied to reduce the viscosity.
The vacuum pump main components including tank and base assembly, lifting frame, slurry pipe assembly, suction pipe assy, inlet pipe assy, intake pipe assy, control panel assy, knife gate valve, pneumatic bufferfly valve, air discharge pipe assy, etc. The user will prepare for suction hose and discharge hose according to their suction distance and discharge distance, and also need an air compressor for air supply to solids vacuum pump. For more details of air compressor, pls contact with GN solids control. The user can select automatic motion or manual motion according to the material condition. Under automatic operation mode, the timer of suction and discharge can be set as per experience, the user can adjust it according to mud density, viscosity, suction and discharge distance.

The centrifuge feeding pump is installed on the mud mixing tank and feed the mixed slurry to decanter centrifuge, the progressive cavity pump is normally used as centrifuge feeding pump, for reliable operation and easily adjustment of feed rate, which can be controlled by decanter centrifuge VFD control panel.

Recently one set of Oil Contaminated Soil Washing and Separation Equipments are ready for shipment to Middle East customer. It is a customized system for Oil Contaminated Soil Washing and Separation, including the modular as below: for more details, pls check with GN solids sales.

1. Mobile washing module
2. Solids vacuum pump feeding module: including solids vacuum pump, air compressor module to supply air for the vacuum pump and decanter centrifuge VFD control panel, material suction pipe and discharge pipe, air supply pipe.
3. Pre-mixing tank 1: including electrical steam generator with water softening equipment, pre-mixing tank with liquid level meter, lightings, electric control system, heating pipeline and tank accessories, mud agitator for chemical mixing and agitating, submersible slurry pump to feed to screening shaker.
4. Pre-mixing tank 2: including electrical steam generator with water softening equipment, pre-mixing tank with liquid level meter, lightings, electric control system, heating pipeline and tank accessories, mud agitator for chemical mixing and agitating, submersible slurry pump to feed to screening shaker. One pre-mixing tank in use and one pre-mixing tank as back up. Since the electric steam generator can not provide enough steam for heating the oil sludge immediately, the 2 sets of pre-mixing tank design can improve the working efficiency of the Oil Contaminated Soil Washing and Separation system and it can work continuously. Heating process is important to reach the expected treatment result.
5. Screening module: including shale shaker, pre-mixing tank, mud agitator, decanter centrifuge feeding pump and static mixer.
6. Chemical dosing module for chemical preparation and mixing
7. Centrifuge separation modular: including VFD decanter centrifuge, 3 phase disc separator with its feeding pump, flushing unit, solids discharge transfer unit, centrifuge fluids collection tank with mud agitator, buffer oil tank and water tank, and electric control system, lightings, tank accessories.

Recently one set of 1000HP drilling rig solids control system is ready for shipment to Middle East. The solids control system consists of components as below:

1. Shaker tank : 2 set of GNZS594F-SHBF shale shaker with mud distribution box and solids discharge trough, 1 set of GNZJ594F-S3S16NF mud cleaner with desander cone and desilter cone feeding pump, 2 sets of mud agitator with helical bevel type gearbox, 4 sets of mud gun, lighting, the mud cleaner can be used as back up shale shaker. The shaker tank dimension is equivalent with 40ft container with liquid level meter, the walkway, guardrails can be foldable during transportation. The shaker screen size is 585x1165mm with composite material frame, stainless steel material wire mesh, and the shaker screen for shale shaker and mud cleaner is same.
2. Reserve tank 1: The storage tank dimension is same with 40ft container with liquid level meter, the painting color is customized as per client’s requirement. 3 sets of mud agitator, 3 sets of mud gun, lightings and guard room are installed on the tank
3. Reserve tank 2: the dimension is same with reserve tank 1, also with mud agitator, mud gun on the tank.
4. Pump skid: 2 sets of 75KW centrifugal pump as desander and desilter feeding pump, 2 sets of 75KW mixing pump, 2 sets of mixing hopper, powder collection hopper are all installed on the same skid and pipelines connected with solids control system.
5. Water tank with water transfer pump and lightings
6. Electric control system: including cables, control panel, distribution box for all the tanks control system. The whole system comply with ATEX explosion proof standard which can be used for offshore drilling rig.
   If you need a customized drilling rig solids control system, pls contact with GN solids sales.

Recently one set of Oil Sludge Washing and Separation System are ready for shipment to Uzbekistan. The system including modular as below:

Suction modular, including vacuum pump, air compressor and air tank to provide air supply and pressure to sludge vacuum pump

Pre-mixing and heating washing modular, including pre-mixing tank, mud agitator, submersible slurry pump( for feeding to shale shaker), liquid level meter and other accessories.

Coarse solids screening modular, coarse solids separation shale shaker with sealing cover and spray system, pre-mixing tank with heating lines, pipelines, handrail, walkway, liquid level meter, lightings, electric control system, mud agitator

Solids liquid separation modular, including decanter centrifuge and screw pump with static mixer

Solids, oil, water three phase separation modular, including 3 phase disc separator to separate oil, water, solids, oil buffer tank, water buffer tank, disc centrifuge feeding pump, flushing unit, protection unit, solids collection unit, mud agitator, liquid level meter, electric control system, lightings, pipelines, handrails, walkway, decanter centrifuge liquid collection tank and skid. The 3 phase disc separator is a centrifuge to separate light liquid, heavy liquid and solids separation. The feed material should with solids content less than 3%, and max allowed solids should be smaller than 1 micron. That is the purpose to use decanter centrifuge which will separate the fine solids and reduce the solids content effectively.

Chemical dosing modular, which including three tank automatic powder chemical mixing system, and 2 ea 1000L chemical mixing tank with agitator and chemical dosing pump.

All the modular will be installed inside standard container with windows and doors for convenient maintenance, the insulation layer can keep the equipments working in warm temperature, especially for Winter Operation. If you need a customized solution of Oil Sludge Washing and Separation System, pls contact with GN solids sales.

Recently 5 packages of drilling waste treatment equipments for 2000HP drilling rig are ready for shipment to Nigeria. The Third Party Inspection company DNV is arranging testing before delivery in our factory, and it is already pass the TPI assigned by the client, the 5 packages of drilling waste treatment equipments are qualified and ready for delivery to Nigeria.
The 5 packages of drilling waste treatment equipments including:

Vertical cuttings dryer and telescopic skid, 5 sets
The model number is GNCD930G vertical cuttings dryer, which is the ideal equipment for oil based drilling cuttings treatment, including 5 sets of flushing pump

Decanter centrifuge and telescopic skid, 10 sets
5 sets of decanter centrifuge GNLW363D are used for drilling rig solids control system, 5 sets of GNLW363D-VFD decanter centrifuges are used for oil based drilling cuttings treatment, to treat the fluids treated by vertical cuttings dryer. All of the decanter centrifuges are installed on top of telescopic skid, 10 sets of centrifuge feeding pump is installed on the skid.

5 sets of accessories equipments of drilling cuttings treatment.
Including 40 sets of GNSC series screw conveyor, some of them are used for collection of drilling waste from solids control shale shakers and feeding to vertical cuttings dryer feeding port, some of them are used for transferring the discharged solids from vertical cuttings dryer and decanter centrifuge to waste collection box, all of the screw conveyors are with manual speed adjustment and control panel, and the screw conveyor installation dimension is customized according to client’s requirement.
Except for the 5 sets of drilling waste management equipments, the client already purchased many sets of same model decanter centrifuge and vertical cuttings dryer packages for their rig. If you need customized drilling waste management solution, pls contact with GN solids control.