Month: June 2019

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.