Desander Desilter

As the professional manufacturer of containerized drilling waste management system in China, GN solids control recently shipped 2 units of drilling waste management system to Russia clients for their repeat order. This is our standard containerized drilling waste management system for Russia area with cold weather in China.

For the clients in other countries with normal temperature, GNCM-40A drilling waste management system is the most popular model, the configuration is as below:
1 unit of rated speed vertical cuttings dryer installed on the skid, 1 unit of VFD decanter centrifuge installed on the telescopic skid, 1 unit of feeding pump installed on the skid, intermediate tank on the skid for storage of the vertical cutting dryer discharged fluids, and the feed pump will feed the fluids from the intermediate tank to the decanter centrifuge for further treatment, all the equipments are installed on one skid for convenient transportation.

The containerized drilling waste management system is with similar configuration, just considering the low operation temperature in Russia, we use a standard 40ft container to ensure all the equipments working in warm area, otherwise the user has to stop working during the long winter.

The screw conveyor is used to transfer the discharged solids from the vertical G dryer discharge port to cuttings collection box. Also there is skip to collect the discharged solids from decanter centrifuge. The screw conveyor also collect the drilling cuttings from the shale shaker and transfer the drilling cuttings to the vertical cuttings dryer. The length of the screw conveyor is customized according to the rig site layout, the standard length for each section is 12ft, we have option for 1 section, 2 sections, 3 sections and 4 sections. We can also make customized length accordingly.
For more information, pls contact with GN solids control sales engineer.

As professional manufacturer of Oil tank bottom sludge separation system, we have one set of oil sludge separation system ready for shipment to Domestic client. If you are willing to check the complete package equipments and the quality, pls visit our facility in Beijing, China.

The working process of the oil sludge separation system:
1) Coarse solids separation modular: with one unit of high G force drying shaker with adjustable G force up to 7.5G, 1mm or 2mm opening screens are installed on the shaker to separate the coarse solids, it is quipped with internal spraying system and sealing cover to prevent oil sludge spilling. The mud tank under the shale shaker is with internal heating lines to heat and mix the oil sludge so that it will be easier to be treated by decanter centrifuge.
2) Decanter centrifuge modular: one unit of VFD decanter centrifuge installed on the mud tank with heating lines, mud tank accessories, The positive progressive displacement pump as feeding pump of decanter centrifuge , the feeding pump feed the oil sludge from shale shaker tank to decanter centrifuge to separate the fine solids cut point 2~5 microns. The mud agitator mixed the oil sludge after treatment and it will flow to the inclined plate clarifier to separate the ultra fine solids before oil water separator.

3) Inclined plate clarifier: It is used to separate the ultra fine solids from the oil water mixture.
4) Oil water separator: to separate oil and water, the pure oil will be pumped to oil tank, the recovered water will be pumped to water storage tank and it can be reused for circulation or hot water for heating.
We have standard oil sludge separation system with 1m3/h, 5m5/h and 15m3/h for option, for more information, pls contact with GN solids control.

As the most professional manufacturer of decanter centrifuge and shale shaker in China, GN solids control recently shipped one batch of solids control equipments to USA client. The client can make the accessories locally to save import cost and freight cost, such as shale shaker mud tank or catch tank, decanter centrifuge feeding pump and telescopic skid, etc. We have warehouse and after sales service team in USA locally to support the project.
The shale shaker is the first phase cleaning equipments for separation of solids from drilling fluids, the fluids dropped down into the mud tank, then the feeding pump of decanter centrifuge will feed the fluids to decanter centrifuge to separate the fine solids from the fluids, so the discharged clean fluids can be recovered and reused to prepare for new drilling fluids, by using the chemical dosing system together, the user can separate the ultra fine solids up to 1 microns, then the remained water can be clean enough to be sent to waste water treatment facility.

The big bowl decanter centrifuge with big treating capacity is the ideal option to be used with dewatering unit, once adding the chemicals, the treating capacity will be reduced a lot according to the density and viscosity of the materials, if the client need higher output, the big bowl decanter centrifuge with 18 inch, 22 inch and 30 inch bowl diameter. The bowl material is made of duplex stainless steel 2205 or 2304 for better corrosion resistence, the screw is completed made of stainless steel and heat treatment up to 1000 degree, the open design of the impeller can increase the treating capacity. The collection box is also made by stainless steel for longer working life. The bearing is SKF brand for better performance.
Welcome to contact with GN solids control for more details.

Recently we shipped one set of slurry recycling system for China client with the equipment list as below:

1. Linear motion shale shaker GNZS703 with 3 panels composite material frame shaker screens, the 2 Italy Oli vibration motors, each with 2.3HP, and the motor and control panel is explosion proof standard, the shaker deck bottom material is stainless steel material. The total screen area is 2.73 m2.
2. The desander with bottom shaker for drying the discharged solids, 2 ea of 10 inch desander cone installed on the same model shale shaker, this is a 2 phase searation desander, the hydrocyclones with steel material cover outside and inside material is PU material, the shaker screen is same size with the shale shaker, the user can stock the shaker screens with only one size.
4. The mud agitator, mud gun installed on the mud tank to agitate the slurry in case that the solids will accumnulate in the tank bottom.
5. The submersible slurry pump is installed on the mud tank to feed the slurry to desander cone, it do not need so much space to install it.
6. The trip pump and mud mixing pump installed on the skid to provide power to the mixing hopper and mud gun.
7. The venturi hopper to mix chemicals with the slurry to prepare for new fluids by working with mixing pump. The new drilling fluids can be reused or the clean fluids can be reused directly without mixing if necessary.
8. Mud tank with handrails, walkways, stairs, pipelines, lightings, electric control system.
   Application of mud recycling system:
   HDD, CBM, TBM, Pilings, dredging slurry separation system, mining slurry separation, oil and gas drilling solids control system
   If the client have particular requirement for their projects, we can provide customized solution for our clients. Welcome to contact with GN solids control.

One set of 1500HP rig solids control system is ready shipment to India for oil drilling company, this is their repeat order since 2008, they keep purchasing the solids control system & equipments and shaker screens, desander cone, desilter cone , etc. spare parts from GN. The technical configuration of this 1500HP rig solids control system is as below:

1) 3 units of linear motion shale shaker, each shaker equipped with 3pcs composite material shaker screens for longer working life and save time to replace shaker screens. One possem belly is installed after the 3 units of shale shaker to collect the drilling fluids from elevated manifold or poor boy degasser and distribute them evenly to 3 shale shaker buffer box. The coarse solids are effectively separated out, so that it can reduce the burden for the next step equipments- mud cleaner and make the working life of desander cone, desilter cone and centrifugal pump longer.

2) 1 units of vacuum degasser to separate the gas from the drilling fluids, to protect the centrifugal pump impeller and keep the mud balance.
3) 2 sets of centrifugal pump as the feeding pump of desander cone and desilter cone, 1 unit of mud cleaner is the combination of 10 inch desander cone, 4 inch desilter cone and bottom shale shaker, the shaker screen dimension is same with the linear motion shale shaker. The desander cut point is 45~75 microns, the desilter cut point is 25~45 microns.

4) 1 units of middle speed decanter centrifuge with submersible slurry pump as feeding pump for barite recovery.
5) 1 unit of high speed decanter centrifuge with submersible slurry pump as feeding pump to separate the cut point 2~5 microns low gravity solids.
6) 2 sets of mud tanks with handrails, walkway, stairs, electric control system, pipelines, valves and all the other accessories.

Two sets of slurry dewatering system is ready for shipment for America client for construction slurry, this is the repeat order from the same client, they are satisfied with the performance and after sales service, so they purchased 4 more units for their ongoing project, these 2 sets of slurry dewatering unit is part of their new order. The new 2 sets of construction slurry dewatering unit design has been improved according to client’s feedback to be more user friendly.

The technical configuration is as below:

1. Coarse solids separation modular: The coarse solids separatioin shale shaker is installed on the slurry collection hopper, the discharged slurry is dropped into the collection hopper, a submersible slurry pump is installed vertically as feeding pump of fine solids separation modular.
3. Slurry collection hopper modular: This is special designed slurry collection hopper and it is used to collect the construction slurry from the vacuum tanker vehicle. The internal water spray system will help the slurry to the hopper discharge port easily.
4. Fine solids separation modular: A shale shaker equipped fine mesh shaker screen to separate the fine solids from the slurry, this step is very necessary to reduce the solids content and protect the desilter cone in the next process, also it will protect the centrifugal pump of the desilter cone, it will reduce the abrasion of them and make their working life longer.
5. Desilting modular: The desilter cone is to separate fine solids over 20 microns before decanter centrifuge, it can reduce the fine solids effectively and improve the separation efficiency of the decanter centrifuge.
6. Decanter centrifuge: The high speed decanter centrifuge is used to separate the ultra fine solids over 2 microns, the performance of the centrifuge is very important, sometimes the client will use dewatering unit together to separate the 1 microns solids.

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.