drilling waste management

Recently 2 sets of drilling waste management equipments are shipped to Africa, including 2 units of vertical cuttings dryer, 2 sets of waste treatment decanter centrifuge, 2 units of screw pump, 6 units of screw conveyor,
The standard drilling waste management system configuration is as below:


1 ea vertical cuttings dryer
1 ea VFD decanter centrifuge
1 ea screw pump as centrifuge feeding pump
1 ea vertical cuttings dryer flushing pump
1 set of cuttings dryer skid and 1 set of decanter centrifuge telescopic skid
1 set of intermediate tank to collect discharged fluids from vertical cuttings dryer


Several units of screw conveyor to transfer the drilling waste to vertical cutting dryer top open feeder port. One unit is horizontally installed to collect drilling waste, one unit is slantly installed to collect drilling waste from the first unit screw conveyor discharge port. The complete package of drilling waste management system is designed as standard container loading size and for convenient transportation.
The vertical cuttings dryer is ideal equipment to treat the oil based drilling waste, the discharged solids with oil content on the cuttings is below 5%, if the discharged solids with higher moisture, the user should check the screen basket status through watching port, if the accumulated solids is already blocking the screen opening, it should be flushed by the high pressure air knife regularly, otherwise the treated solids will be with high moisture, the main motor will be continuously stopped because of over currency.


The VFD decanter centrifuge can separate the fine solids from the vertical cuttings dryer discharged fluids, the cut point is 2 ~5 microns, by adjusting the pump frequency, the user can adjust the feeding rate conveniently. The positive pressured VFD control panel with stainless steel cover, PLC smart control, HMI interface, world famous brand universal VFD inverter.

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 2 sets of oil based drilling cuttings treatment system are ready for shipment to Russia. Same with previous order, the vertical cuttings dryer and decanter centrifuges are installed in the container with insulation layer to keep the equipments warm in cold weather in China.
The technical configuration is as below:

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1) Vertical cuttings dryer for oil based drilling cuttings treatment, the oil on the discharged cuttings is below 5%, the client can disposal the solids directly or send to TDU unit according to the environmental protection regulations in their country. The treated fluids will flow to the intermediate tank, the feeding pump of decanter centrifuge will feed the fluids to decanter centrifuge to separate the fine solids. The vertical cutting dryer is installed on the frame inside the container.


2) The waste decanter centrifuge will separate the solids cut point 2~5 microns from the fluids, the discharged fluids can be reused by drilling and prepare for new fluids.
3) Positive Displacement pump is as the feeding pump of decanter centrifuge and installed in the container.
4) The 40ft standard container with windows, doors and top open hole for easy replacement of the screen basket which is wear parts of the vertical cuttings dryer. The insulation layer attached with container is to keep the equipments working well in cold weather in Winter, it is special design for Russia clients.


Why use GN vertical cuttings dryer system?
As per the feedback from our client who has used GN drilling waste managements system, the vertical cuttings dryer system can reduce the drilling waste volume effectively, and the recovered drilling fluids can be reused, the client can save cost and time to transfer the drilling cuttings to third party facility for treatment. And more and more countries forbid to dig waste pit at rig site for environmental protection.

GN solids control will ship 1800pcs shaker screens to our client in Asia after Chinese New Year holiday. All the screens are composite material frame shaker screens, the dimension is 635x1253mm. The screens can be loaded into 2 containers. Our factory will be closed for Chinese New Year holiday from January 29th to February 13th. Pls contact with GN solids control by email freely.


Shaker screens are one of our major products among our products lines. As the professional manufacturer of solids control equipments and drilling waste management, our products line including linear motion shale shaker, mud cleaner, desander, desilter, decanter centrifuge, vacuum degasser, centrifugal degasser, mud gun, mud agitator, centrifugal pump, submersible slurry pump, sludge vacuum pump, mud gas separator, mixing hopper and jet mud mixer, flare ignitor, screw pump, screw conveyor, high G drying shaker, vertical cuttings dryer, mud tank, complete solids control system and drilling cuttings treatment system. Also we can produce cuttings solidification unit, Thermal Desorption Unit, Oil sludge separation unit, chemical dosing unit, and HDD & CBM mud recycling system, TBM desander unit, Solids removal unit, Dredging slurry separation unit.


GN shaker screens are produced in our second factory workshop, every month we shipped thousands of shaker screens to USA, Russia, etc. over 70 countries in the world, most of them is from repeat order for good quality and competitive price. Features of GN composite material shaker screens:
1) All the screens over 60 mesh use 3 layers wire mesh for longer working life.
2) Four sides pre-tensioned shaker screens for reliable working performance.

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.