As the professional manufacturer of oil sludge treatment unit in China, recently we shipped one set of oil sludge treatment unit to our client in China. This is our standard oil sludge treatment unit, including the components below:

1. Pre-mixing tank, including submersible slurry pump, mud agitator, mud tank, liquid level meter, lighting, heating lines, accessories, pipelines.
2. Vacuum pump to transfer the oil sludge from waste pit to the oil sludge separation unit. It is 100% air operated pump without electricity power supply.
3. Shale shaker modular including shale shaker with sealing cover and internal spray system in case that the high viscosity oil sludge blinding the screen opening. The shale shaker is to separate the coarse solids from the oil sludge so that it will not damage the decanter centrifuge, and the working life of decanter centrifuge will be longer.
4. Centrifuge package modular including one unit of 2 phase decanter centrifuge, screw pump as feeding pump of decanter centrifuge, 3 phase centrifuge to separate oil from water, flushing tank with flushing pump, centrifuge tank skid to install the centrifuge on it, buffer tank for oil and water storage, the oil will be automatically pumped to oil storage tank once it reach the setting level. The water will be automatically pumped to water storage tank or back to the circulation system. The liquid level meter is applied to monitor the liquid level.
   GN decanter centrifuge features:
5. 
   1) Bowl material is made of duplex stainless steel 2304, and other components are made of SS316L. The collection box is made of stainless steel for better corrosion.
   2) The screw is made of SS304 by centrifugal casting heating up to 1000 degree.
   3) The bearing is SKF brand for longer working life
   4) The screw propeller is protected by tungsten carbide tiles, which is repairable once it is damaged.

Recently GN solids control shipped 10 units of slurry desanding unit for Piling and TBM. This is our standard GNMS-500D with 500gpm treating capacity, which is consist of the equipments as below:

Double deck shale shaker GNZY753F with 1 ea of 10 inch desander cone. It is 2 phase cleaning equipment with shale shaker and desander cone.

The centrifugal pump as desander feeding pump, which is installed on the mud tank. The pump model is GNSB6x5C-12J with 37KW motor.

The compact design mud tank as an intermediate tank to collect the slurry discharged from bottom shaker screen. The inland shipping dimension is 3103 x 1896 x 2441mm. The operation dimension is 3506 x 1896x 3907 mm, the total weight is 2850kg. The total power is 39KW. The upper screen area is 0.875m2, the bottom screen area is 1.35m2. The vibration strength is 7.1G which is adjustable.

The shaker screen is composite material frame shaker screens for longer working life, with effective screen area is 20% larger than traditional steel frame screen area. The conductance is much bigger than steel frame screens. The wire mesh is made of stainless steel 316L material. The storage life is up to 5 years.
The disadvantages of the economic configuration mud recycling system is without mud mixing unit, if the client need to prepare for new drilling fluids with the recovery clean fluids, we will provide separate jet mud mixer( combination of mixing hopper, mixing pump, pipelines, valves and skid) connect with storage tank.
The desanding unit is economic configuration mud recycling system, we also have customized self contained mud recycling system for better separation performance.

We have GNMS-500B, GNMS-500G, GNMS-500GL mud recycling system for option, with cleaning, storage, mixing multi function. The submersible slurry pump as feeding pump of the mud recycling system from the mud pit to shale shaker.

Recently 2 sets of drilling waste management system are shipped to our client in Xinjiang province. They are used to treat the oil based drilling cuttings, recovery more useful drilling fluids and reduce the drilling cuttings disposal cost.

The major and most important equipments in the drilling waste management system including: decanter centrifuge and vertical cuttings dryer.
The decanter centrifuge produced by GN Solids Control features:
1) Centrifuge Duplex Stainless Steel 2304 or 2205 bowl made from centrifugal casting, the other parts are made by stainless steel 316L
2) Centrifuge screw propeller is protected by tungsten carbide tiles, it is made by centrifugal casting by heat treatment up to 1000 degree. The screw is made of stainless steel material.

3) The bearing is SKF brand for better performance.
4) The collection box is all made of stainless steel 304 for better corrosion resistance. The air spring design is for user friendly, one worker can open the collection box easily.
5) The VFD control panel can adjust the frequency of main motor, back drive motor, feeding pump motor. The frequency inverters are all ABB brand. The other electric components are made from famous brand for easier replacement by international clients. The VFD control panel is positive pressurized VFD with PLC Smart control , HMI interface.
The ideal feeding pump for the decanter centrifuge is positive displacement pump, sometimes to save the space on the mud tank, we will use vertical installed submersible slurry pump as feeding pump.
Vertical cutting dryer is the first step to treat the oil based drilling cuttings, the OOC is normally below 5%, sometimes the oil content in the cuttings could be below 3%. In some countries it is accepted to be landfill, in some other countries the data should be below 1%, the client can send the discharged solids to burning process.

GN solids control just back from the oil exhibition OTC 2019 in Houston, TX. We have 2 stands at OTC as usual, the stand photo is as below:
Booth No. 1: NRG Center 4361 (GN Solids Control)
Booth No. 2: NRG Arena 8341 (GN Solids America)
After the show, all the equipments are shipped back to our Houston warehouse. We have a lot of equipments and different API mesh size shaker screens there for clients in North America and South America.
What equipments we exhibited at OTC?

1) Sludge vacuum pump: It is ideal pump to transfer oil sludge, oil contaminated soil, sand, animal waste, sludge waste, drilling waste, powder cements and other types of sludge. The 100% air operated vacuum pump do not need electricity power. The air compressor should be required to drive the vacuum pump.

2) The ViST vacuum screen is installed under the shale shaker last screen or outside the shale shaker to dry the discharged drilling cuttings and recover more drilling fluids. It will improve the separation efficiency and save money for the user.

3) Different models shaker screens: the composite material shaker screens with bigger screen area and longer working life, we can produce OEM shaker screens for GN shale shaker and replacement shaker screens for Derrick, Brandt, SWACO, FSI, etc. brand shale shakers.
4) The centrifugal pump spare parts are all interchangeable with world famous brand centrifugal pump, the impeller and pump casing are all made of hard ductile iron alloy.

5) The VFD decanter centrifuge can be used for dewatering unit, drilling fluids treatment, drilling waste management system, waste water treatment, oil sludge treatment, and industrial water treatment, etc. applications. We can produce different bowl size decanter centrifuge of 9 inch, 14 inch, 18 inch, 22 inch, 30 inch with different treating capacity.