high G drying shaker

Recently GN solids control shipped one batch of pitless drilling waste management equipments for International oilfield service company, including high G drying shaker package, sludge vacuum pump, cuttings dryer.


The vacuum pump is 100% air operated pump to transfer drilling waste from waste pit to vertical cuttings dryer ( for OBM & SOBM drilling waste) and high G drying shaker modular ( for WBM drilling waste). No need electricity power, it is suitable for hazardous area application. The suction horizontal distance is up to 50m, discharge distance is up to 500 ~1000m. The max solids size to be transferred is up to 50 ~ 75mm based on different model, and the max solids content is up to 80%. There are 2 operation mode for option, automatically and manually working, the user can choose different operation mode for easy operation. The compact design structure is for easily installation and movement.


The high G drying shaker is normally used for water based mud drilling waste treatment project, the max G force is up to 8.0G so that the discharged solids will be much drier for easy disposal. The clean fluids drop down into the mud tank, the centrifuge feeding pump can transfer the clean fluids to decanter centrifuge for further treatment.


The vertical cuttings dryer is widely used to treat the oil based mud drilling waste management project, we have 2 models of vertical G dryer for option, GNCD930E with treating capacity 40 tons/ hour, which is the best sold model for standard drilling waste management system. The discharged solids with oil content on the cuttings is below 5%, it can be landfilled or disposal directly once it can meet the environmental protection regulations in the client’s country. The discharged fluids flow to a buffer tank, the clean fluids can be transferred by centrifuge feeding pump to decanter centrifuge for further treatment.

Recently GN solids control shipped one set of drilling cuttings solidification unit to our client in Africa. The cuttings solidification unit is widely used for water based cutings final disposal. The technical specification of GN drilling cutting solidification unit:


1) GN stand drilling cutting solidification unit is mounted on 2 skid, one is solidification mixing unit, one is cuttings storage hopper skid. During transportation, the solidification unit is loaded into 40ft container, and the 2 separate skid for convenient operation.
2) The cuttings storage hopper skid including waste collection hopper and accessories and screw conveyor , the user can damp the cuttings waste into the collection hopper, the screw conveyor transfer the waste to solidification mixing unit continuously.
3) The solidification unit including lime storage box, absorber storage box, high shear mixer, all of these components are installed on one skid. The screw conveyor dropped the cuttings into the vessel, at the same time, the lime and absorber are transferred by separate augers, all of these materials are mixed into the vessel, and transferred by the inner screw to solids discharged port. If chemical is necessary, it can be add through the liquid inlet .
Before feeding the GN solidification unit, to save the operation and material cost, the drilling cutting should be as dry as possible. The client can use water based drilling waste management system before feeding to cuttings solidification unit.


Normally we use high G drying shaker and high speed decanter centrifuge package. The screw conveyor collect the water based drilling cuttings and transferred to high G drying shaker, the coarse solids are separated out, the fluids dropped into the buffer tank, the screw pump transfer the liquid to VFD decanter centrifuge, then the fine solids are separated out, the fluids are flow to solids control system for reuse, the cuttings are collected by trash box and feed to solidification unit.

GN solids control just come back from CIPPE 2019 oil exhibition in Beijing, China. We showed our advanced technology and equipments at the CIPPE oil show. Below is the photos taken in our stand.


1) Sludge Vacuum pump: it is the ideal pump to transfer the waste cuttings, waste sludge, oil sludge, drilling mud, cement, powder material and other industrial waste.
2) High G force drying shaker with 4 panel composite material shaker screens. The screen dimension 585x1165mm, we can install the shaker screen with API mesh size from API 20 to API 325 comply with API RP13C. The G force is up to 8.0G.
3) 14 inch bowl decanter centrifuge
4) 22 inch bowl decanter centrifuge for waste water treatment and waste sludge treatment and dewatering unit, the bowl diameter is 550mm, the bowl length is 2310mm, different with the normal drilling fluids treatment centrifuge, the GNLW554 series centrifuge can treat the discharged water much cleaner, it is ideal centrifuge for the project required very clear water.
5) Oil sludge separation system : The configuration is as below:
The Premixing tank, coarse solids separation shale shaker, decanter centrifuge, three phase centrifuge, chemical dosing unit, fluids buffer tank, shaker fluids collection tank, oil tank, water tank and complete skid. The mud agitator and heating lines installed on the premixing tank.
6) Vertical cuttings dryer for oil based drilling cuttings treatment.
7) Screw conveyor to transfer drilling cuttings to vertical cuttings dryer drilling waste management system
We got a lot of inquiries and positive interests for the oil sludge treatment unit. The working video for the oil sludge treatment is as below: By using proper chemicals, we can design the customized system for different requirement. If you need to know more information, pls get the brochure from our sales engineer.
http://www.gnsolidscontrol.com/video/oil-sludge-treatment-test-unit-working-video

Recently GN solids control shipped vertical cuttings dryer, decanter centrifuge system to Russia drilling companies, they are installed inside the 40ft container to keep them warm and avoid frozen of the drilling cuttings when working in Winter.


The client use the vertical cuttings dryer system for oil based drilling cuttings, when they use water based drilling cuttings, we will use different system design with high G drying shaker and decanter centrifuge, and we have standard design of pitless system for both water based mud and oil based mud ( also for SOBM), the client only need to buy one system and use them in different rig site.
The VFD decanter centrifuge GNLW363C-VFD is the most popular decanter centrifuge used for solids control system and drilling waste management system, oil sludge treatment system, dewatering system, solids water separation system and waste water treatment system. The VFD control panel is positive pressurized VFD control panel with PLC smart control and HMI interface, the inverter for main motor, back drive motor and feeding pump motor are made of ABB or Siemens brand or Schneider brand for global outsourcing.


The bearing is SKF brand, the screw  is made of stainless steel with heat treatment up to 1000 degree, the impeller is protected by tungsten carbide tiles for longer working life and easily replacement. The mud distribution port and solids discharge port are all protected by tungsten alloy and interchangebale. The bowl material is duplex stainless steel 2205 or 2304 by centrifugal casting, it is much better than SS304 and SS316.

GN ViST vacuum shale shaker is a shaker unit with a vacuum suction hopper installed under the last shaker screen. The purpose to use the ViST vacuum unit under the shale shaker is for more recovery of the drilling fluids in the same conditions compared with shale shaker without ViST system, and the discharged drilling cuttings will be much drier, so the user can save cost to treat and disposal the drilling cuttings. Normally it is very difficult for the offshore drilling cuttings collection, treatment and disposal, sometimes client will ship them back to drilling waste management facility in land, the collection and shipment cost is very high, other clients use cuttings re-injection technology, some clients use Thermal desorption unit, some clients installed drilling waste management on the offshore rig floor, but normally the area for offshore drilling rig is very limit, it is hard to install a complete vertical cuttings dryer system. Because of these reasons, ViST vacuum shale shaker became very important for offshore.


As a professional solids control and drilling waste management system manufacturer in China, GN solids control, GN solids control keep developing new and advanced technology for oil & gas industry and provide the best solution for our clients.
Features of ViST Vacuum Shale Shaker


1. GN ViST vacuum shale shaker is suitable for oil based mud, water based mud and Synthetic oil based mud.
2. By using the ViST vacuum shale shaker, the drilling fluids recycling will be increased by 30%~50%, It greatly reduces the volume of drilling waste and the cost to transport the drilling waste.


3. By using this ViST vacuum shale shaker, no need extra high G drying shaker again; The compact design did not take much area at site.
If you are interested in GN ViST vacuum shale shaker, pls contact with GN solids control.