Dewatering Unit | Drilling mud Equipment

How to choose right model Decanter centrifuge for liquid and solids separation

BY admin 27 June 2022 Decanter Centrifuge, dewatering unit, Drilling equipments Company, drilling mud centrifuge, Drilling Waste Management

GN Solids Control makes various sizes and various standards centrifuges to meet for oil and gas drilling, no-oil drilling mud treatment, as well as industry waste separation.

In many cases, clients contact GN Solids Control sales team to ask for prices of GN centrifuges. They said their choice of centrifuge will depend on the characteristics and the price for this they want GN Solids Control to send them a draft quotation for all types of centrifuges.

Actually, it is impossible to quote prices if without the details information of the project or clients request on the separation centrifuges. Some of the reasons are that, GN Solids Control makes various types decanter centrifuge for oil gas drilling, slurry separation and industry separation.

GN Solids Control need the project information and clients’ request on the decanter centrifuge, then GN sales engineer can recommend clients suitable model with necessary standards.

Prices cannot be quoted without project information. As even for the same centrifuge model, price will vary much for different standard while treating different materials, like for the VFD centrifuges, for a same model, there are Explosion proof zone 1 and zone 2 for hazardous areas, there are CNEX, ATEX, and IECEX explosion proof standard for various market request. For the positive pressurized VFD control panel, there are 3 VFD or 2 VFD control panel per different field request. There are vortex tube cooking system and air conditioner cooling type VFD panel to suit for different ambient areas.
You can visit our website for information. And also there are non-explosion proof decanter and VFD panel for safety areas. Clients can choose the suitable standard based on his job site situation and his budget.

GN Solids Control website show some general centrifuge models for clients’ information.
https://www.gnsolidscontrol.com/decanting-centrifuge

https://www.gnsolidscontrol.com/industry-centrifuges

Below are some general questions about centrifuge separation, but not limited to below:

1) Before entering into decanter centrifuge, where is the material coming from, and what treatment it have been down?

2) what is the solids & liquid percentage, and max. particle size before enter into centrifuge?

3) What kind of solids and liquid output you want to reach after centrifuge separation?

4) Handling capacity of centrifuge you want to reach?

and other information you can offer.

High Speed Decanter Centrifuge for Drilling Mud Low Gravity Solids

BY admin 4 June 2022 Decanter Centrifuge, dewatering unit, Diamond Drilling, drilling mud centrifuge

GN Solids Control high speed decanter centrifuge is widely used for low gravity drilling mud solids control (LGS). The most popular size decanter centrifuge for drilling mud solids control system is 14 inch bowl.

There are mainly 3 applications of decanter centrifuges using in drilling mud solids control system.

Firstly, middle speed decanter centrifuge is used in drilling mud solids control system for HGS (High Gravity Solids).

Secondly, high speed decanter centrifuge are used to treat low gravity solids (LGS) removal.

The high speed decanter centrifuge and low speed decanter centrifuge are fixed speed control. GN Solids Control also make variable speed control decanter centrifuge which can fix for both high gravity solids removal and low gravity solids removal. Besides drilling mud solids control, GN Solids Control decanter centrifuge can also used for drilling waste management.

GN Solids Control decanter centrifuge standard color is green RAL6024. GN Solids Control can also make customized color per clients’ request. And GN Solids Control can put clients’ logo on equipment if they need.

Besides 14 inch decanter centrifuge, GN Solids Control makes other sides decanter centrifuge, includes but not limited to below models:

1. GN Solids Control makes 9 inch decanter centrifuge which are widely used in mining slurry separation. It is used together with mini size shale shaker and mixing hopper to complete as a solids removal unit (SRU).

2. GN Solids Control makes 18 inch and 22 inch decanter centrifuge for fine solids separation and dewatering treatment.

3. GN Solids Control makes the biggest size 30 inch decanter centrifuge for industry separation.

Besides various sides decanter centrifuge, GN Solids Control makes other liquid and solids separation equipment to offer turn-key solution to clients.

The major liquid and solids separation equipment GN Solids Control can offer: shale shaker, mud cleaner, desander, desilter, decanter centrifuge, mud agitator, …

Some transferring equipment GN Solids Control make: vertical slurry pump, centrifugal pump, screw conveyor, solids and vacuum transfer pump, …

Complete mud system GN Solids Control makes: various sizes solids removal unit and mud recycling system for various kinds of drilling activities, like for HDD, CBM, piling, pipe-jacking, etc…

Mini Solids Vacuum Pump and Mini Decanter Centrifuge for International Customer

BY admin 17 May 2022 Decanter Centrifuge, dewatering unit, Diamond Drilling, Drilling Waste Management, Mining Equipment

GN Solids Control vacuum pump is mainly designed for solids and slurry transfer. With its special design, the vacuum pump can reach discharging distance up to 500m or 1000m, it’s up to the models clients choose. The big size vacuum pump can discharge to 1000m away, and the even the smallest model vacuum pump can reach up transfer distance 500m away.

Recently, GN Solids Control offered a mini size vacuum pump applied for tank cleaning works. The client will use the mini size vacuum pump to suck the waste slurry from deep tanks. The model of the mini size vacuum pump is GNSP-10B. It is the smallest size vacuum pump made by GN Solid Control. The biggest model is GNSP-10B.

After tank cleaning, the client choose a GN mini size decanter centrifuge to do the liquid and solids separation. After the separation, the client can reduce the waste liquid, recover more usable liquid and reuse the water. It is a 9 inch baby centrifuge with high speed and high G force for water treatment and slurry recover. GN Solids Control mini size centrifuge is widely used at Industry Waste Water Treatment plant and Diamond Core Drilling Fluids Treatment.

GN Solids Control major advantage is to offer full package tank cleaning treatment system and solids removal unit for mining industry, which will consist of shale shaker separator, desander / desilter, decanter centrifuge, feeding pumps, control panels, mud tanks, and skids to holding all items. Sometimes, the chemical dosing unit will be used together with centrifuge to ultra fine solids separation.

GN Solids Control sludge vacuum pump, also named as solids transfer pump. It is a pneumatic slurry transfer vacuum pump. The pump is widely used for liquid, slurry, powder and solids transfer. GN vacuum pump is a high vacuum loading solids transfer pump, so it can be used at tough environmental for solids or sludge transfer especially used to suck and transfer the high density and high viscosity oil sludge from waste pits generated by oil and gas drilling. GN vacuum pump is working with high performance and less maintenance. The pump can transfer material with high gravity and high density, with dry solids material or slurry with solids content max. up to 80%.

How does GN solids removal unit working in diamond drilling and mining industry?

BY admin 24 April 2022 CBM drilling, Decanter Centrifuge, dewatering unit, Diamond Drilling

GN Solids Control make small footprint solids removal unit (SRU) for diamond drilling and mining industries. solids removal unit (SRU) can help to separate the liquid and solids in the slurry waste generated from such mentioned drilling activities. After the shale shaker and centrifuge separation, the dry solids waste is with little water content, the volume is much smaller than the original waste. And it is easy for transport. And the solids waste can be used as construction material. The recovered liquid phase is with less solids, it can be reused for drilling and mud mixing.

Besides the shale shaker and decanter centrifuge separation, GN Solids Control equipped a small size mixing hopper with a mixing pump to prepare qualified new drilling mud to support a continue diamond drilling and mining activity.

The dirty drilling mud from drilling collar is first collected in a mud storage tank. There is a submersible slurry pump allocated on the storage tank to feed the dirty mud to shale shaker for coarse solids separation. The shale shaker is the 1st stage separation. GNZS752 shale shaker is used in the process. It is a min size shale shaker with single deck and 2 screen panels.

The coarse solids will be screened and discharged from the small shale shaker, the liquid phase will pass the screens and fall down into the #1 sand trap of the mud tank. And then there is a screw pump will suck the liquid from sand trap and feed to high speed decanter centrifuge for fine solids separation.

The replacement screens on the mini size shale shaker GNZS752 is fine in order to remove more solids phase, and to maximum reduce the mud weight. And it is to ensure that, after the shale shaker separation, the recovered liquid phase is qualified for decanter centrifuge separation. After centrifuge separation, the clean liquid will flow to the 2# centrifuge tank.
The mixing pump is capacity to suck the drilling mud from #1 sand trap and #2 centrifuge tank, with the power adding from the mixing hopper, the qualified new drilling mud will be send back to the tank compartment and waiting for sending back to rig via s supercharge pump.

Besides the 9 inch mini size decanter centrifuge, GN Solids Control is capacity to make other big sizes for various application, it includes but not limited to drilling mud solids control system, waste water dewatering system, oil sludge separation system, and drilling waste management system, etc…

GNOST-05B Oil Sludge Treatment Package System for Kazakhstan Client

BY admin 16 April 2022 Decanter Centrifuge, dewatering unit

GN Solids Control finished another full package of oil sludge treatment system to Kazakhstan market. Before this, GN Solids Control exported other sizes oil sludge treatment package to the market, and clients are happy with the performance.

Below are the major separation modular included in the oil sludge treatment system to the Kazakhstan client.

1. A 20ft containerized pre-mixing tank.

The mud tank is the same size with 20ft container for easy transportation. The tank is for both dilution and mixing. There are 2 mud agitators equipped in the mud tank to mixing the oil sludge well. A vertical slurry pump are mounted on the tank top. It is for transferring the drilling mud from the pre-mixing tank to shale shaker separator.

2. A shale shaker separation modular

There is a mud tank and a shale shaker separator included in the modular. It is a double deck shale shaker for solids removal. The double deck shale shaker is specially designed for oil sludge treatment. There are covers on the shaker top to avoid sludge spay. As the oil sludge is normally with high density and viscosity. GN Solids Control equipped nozzles for heating the material. It is to reduce the viscosity to help for the separation.

3. Decanter centrifuge and disc centrifuge modular

There is a decanter centrifuge and a disc centrifuge allocated on the mud tank. The decanter centrifuge is for 2-phase separation. The outputs from decanter centrifuge is particle phase, oil and water mixture. It is to treat the liquid recovered from shale shaker. The disc centrifuge is for 3-phase separation, it to recover the clean liquid discharged from decanter centrifuge. After disc centrifuge, the final outputs are fine solids cake, clean water and recovered oil.

There is a small water buffer tank and a small oil buffer tank allocated on the centrifuge modular. There are oil pump and water pump near the oil tank and water tank to transfer the recovered oil and water to outside storage tanks.

2-phase and 3-phase decanter centrifuge for drilling mud treatment

BY admin 13 March 2022 Decanter Centrifuge, dewatering unit

GN Solids Control makes 2-phase and 3-phase decanter centrifuge with fixed speed control, FHD control or VFD control.

The VFD panel of GN Solids Control VFD decanter centrifuge is equipped with vortex self-cooling system. GN Solids Control will ask clients what is the max. ambient temperature in summer at their job site? For high temperature areas, GN Solids Control will make high standard VFD panel with A/C cooling system for for self-cooling.

As 3-phase centrifuge can only allow slurry with max. 10% solids content and particle size less than 2mm, 2-phase decanter centrifuge is must to be used before -phase separation to reduce the mud weight and solids percentage. After 2-phase centrifuge separation, the oil, water and soil mixture slurry flow into 3-phase decanter centrifuge to get oil, water and soil.

In order to remove as more ultra fine solids as possible, chemical dosing unit will be used together with decanter centrifuges for dewantering flocculation treatment. GN Solids Control can offer the 3-tank antomatic chemical dosing unit. It is used for powder chemicals. If clients will use liquid chemical, GN Solids Control have other options to fit for neither powder chemicals or liquid chemicals, or both.

As most clients may know, the pre-separation equipment for OBM cuttings and oil sludge is different. For pure OBM cuttings from shale shaker and mud cleaner, Vertical cuttings dryer is better. It can reduce the oil on the cuttings to 3% ~ 5%. It can remove more usable liquid. And the solids discharge is very dry.

But vertical cuttings dryer cannot be used to treat the soil sludge discharged from centrifuge. As its screen basket opening is 0.5mm, 0.35mm and min. 0.25mm. The soil cake from centrifuge is very fine and will all pass the screen opening.

Oil sludge is normally the mixture from different application, like drilling mud, drilling cuttings, soil cake from centrifuge separation, tank bottom slurry, slope oil, refinery waste oil slurry, industry waste oil, etc… The solids size and solids content is more complex. In this case, high G drying shaker is used for pre-seperation. And as the oil slurry is more complex, sometime, need to dilute and heating the sludge before separation. The solids waste discharge from High G drying shaker is with higher oil on the cuttings after separation. For example, before treatment the sludge with 15~20% oil content. After high G drying shaker, maybe around 10~15%, or even higher if the sludge with high viscosity and density.

2-phase and 3-phase decanter centrifuge for drilling waste management

BY admin 7 March 2022 Decanter Centrifuge, dewatering unit, drilling mud centrifuge, Drilling Waste Management

GN Solids Control offers 2-phase separation and 3-phase separation on OBM and oil sludge treatment solution. Vertical cuttings dryer, high G drying shaker, 2 phase decanter centrifuge, 3 phase decanter centrifuge, 3 phase disc centrifuge are the major separation equipment used for the process. Job site operators can choose the suitable separation device to suit for the material situation and clients’ separation demands.

Chemical dosing unit is a necessary device to use together with the separation device. GN Solids Control has various sizes and various type of chemical dosing unit for liquid chemicals and powder chemicals.

For recover the usable drilling mud from OBM cuttings and WBM cuttings, major separation equipment is vertical cuttings dryer, high G drying shale shaker, and decanter centrifuge. The separation equipment can be laid on the same skid for compact design. Or vertical cuttings dryer / high G drying shale shaker and decanter centrifuge are put on different skids for flexible layout and easy movement.

Many clients want to know more and understand better of the equipment to treat OBM and WBM, all (vertical cuttings dryer, Decanter centrifuge, Screw Conveyor) are necessary to effectively treat oil base mud cuttings, and High G dryer, decanter centrifuge to effectively treat water base mud cuttings.

A client contacted GN Solids Control, they would like for package Solution to be installed next to concrete oil base mud tanks that they will build on their yard in order for OBM to be pulled directly from tanks to treatment solution. GN Solids Control can design layout of this all process to meet for clients’ request.

Regarding Decanter centrifuge, GN Solids Control can make 2-phase decanter centrifuge to separate liquids and solids phase. GN Solids Control is also capacity to make 3-phase decanter centrifuge which is able to separate Oil, Water and Solids. The tricanter centrifuge can help to extract and recover the oil from the mud.

Oil field decanter centrifuge for drilling mud treatment

BY admin 17 January 2022 dewatering unit, drilling mud centrifuge

Centrifugal separation is the process of separating heterogeneous mixtures such as liquid – solid, liquid – liquid – solid and liquid – liquid by centrifugal force. The process is divided into three types: centrifugal filtration, centrifugal sedimentation and centrifugal separation. The corresponding centrifuges are also divided into three categories: filtration centrifuges, sedimentation centrifuges and centrifugal separators.

Decanter centrifuge is widely used in oil field to treat drilling mud, drilling cuttings, and oil sludge and waste water generated from the drilling activities.

GN Solids Control makes various sizes of 2-phase decanter centrifuge, 3-phase decanter centrifuge, vertical centrifuge (normally called as vertical cuttings dryer), and disc centrifuge. GN Solids Control is capable to make explosion proof centrifuge to suit for hazardous environment, and non-explosion proof centrifuges for safety areas.

According to clients request and the application requirements on rotating speed and conveyor speed, GN Solids Control can make fixed speed control centrifuge, variable frequency control (VFD) control centrifuge, and full hydraulic drive (FHD) centrifuges.

Below are the major components of decanter centrifuge:
The rotating assembly:
The rotating assembly consists of a cylindrical stainless steel bowl, conveyor assembly, and related components. The bowl has openings at both ends: A conical head at the solid discharge end and a flat liquid bowl head at the opposite end. The bowl ends are supported by greased ball bearings.

The bowl assembly:
The bowl assembly consists of a cylindrical bowl closed on one end by the liquid bowl head and at the other by the solid bowl head.

Screw Propeller or the conveyor assembly:
The conveyor assembly is a hollow, cylindrical auger that receives the inlet slurry into its interior, disperses it through nozzles to the bowl assembly, and transports the solids to the solid discharge
outlet.

Besides centrifuge, GN Solids Control make other separation equipment to treat drilling mud and drilling cuttings, like shale shaker, high G drying shaker, desander, desilter, mud cleaner, etc…

Drilling Mud dewatering Unit and Solidification Unit in Africa job site

BY admin 11 May 2021 dewatering unit, Drilling Waste Management

A drilling waste dewatering unit and a solidification unit is finished the installation at job site in Africa. The client start to use the dewatering unit and the drilling cuttings solidification unit to treat the waste slurry.

It is a 20ft containerized dewatering unit used at this job site. There is a 3-tank automatic polymer dosing system and a single tank PE tank for liquid chemical. The single PE tank is for manual operation. Client can choose to use both dosing system or either of them.

A 14 inch decanter centrifuge is used together with the chemical dosing system for dewatering treatment. Normally, there will be a shale shaker or high G drying shaker used before decanter centrifuge for reducing the solids content and remove the big size solids. But at this job site, there is no big size particles, and the solids content is small. The client does not need to use shale shaker separater, but use dewatering centrifuge separation directly.

After decanter centrifuge dewatering treatment, the client will use the solidification unit to make the solids waste dry. GN Solids make automatic drill cuttings solidification unit, all auger inside the solidification unit are equipped with VFD control panel. The operators can set up feeding speed before start the solidification unit.

Besides the containerized dewatering dosing system, GN Solids Control offers different sizes of 3-tank automatic polymer dosing system and single tank liquid chemical dosing unit. Clients can choose different models and modular to use it separately, or use more sets for bigger capacity.

GN Solids Control makes various sizes dewatering centrifuge, the bowl size is varying from 9 inch, 14 inch, 18 inch, 22 inch and up to max. 30 inch. And GN Solids Control offers fixed speed control, VFD control and FHD control to various size centrifuges to meet clients’ demands.

GN Solids Control also makes screw conveyor, sludge and solids vacuum pump, vertical cuttings dryer, oil sludge separation unit and waste oil/water treatment unit to meet different applications.

GN Separation Attend IE expo China 2021 for sludge treatment

BY admin 26 April 2021 Decanter Centrifuge, dewatering unit, exhibition

The annual China Environmental Expo was held in Shanghai International Expo Center in April. As the brand of environmental separation and transportation equipment of GN Solids Control, GN Separation brought the latest technology and equipment to participate in the 22nd China Environmental Expo of IE Expo China 2021. GN team just got back from the exhibition.
Below is the the main products of GN Separation taking for the Environmental Expo in Shanghai.

1. A complete set of oily sludge treatment equipment was taken by GN Separation.

GN Solids Control apply heating and chemical washing technology to treat oil sludge and oil base drilling cuttings. The system is used to recover oil and water, and reduce the oil content of solid waste to 2% through heating and chemical hot washing technology. The main equipment includes: high G drying shale shaker, sludge solid-liquid separation decanter centrifuge, three-phase centrifuge separator to get oil, water and soil cakes.

2. Large bowl decanter centrifuge with large rotating drum for sludge dewatering.

The diameter of the large bowl dewatering centrifuge is 30 inch. The large rotating drum decanter centrifuge provides high efficiency and large capacity sludge dewatering solution. It has the advantages of small area, large capacity, high efficiency and high automation.

3. Solid / sludge vacuum pump

GN Solids Control take the big size skid mounted solids and sludge vacuum pump for the Environmental Expo. The crown energy solid and sludge vacuum pump is a pneumatic vacuum suction and positive pressure pump. The suction capacity is strong and the discharge distance is far. The suction length can up to 50m, and the discharge distance can up to 1000m. It can be used for solid, solid-liquid mixture, sludge and other material transportation. GN sludge and solids vacuum pump is widely used in various fields and different industries. The application of the pump includes but not limited to suction, solid waste transportation, kitchen waste treatment, river dredging and so on.