Drilling waste vertical cuttings dryer is widely used to treat oil based mud and oil based mud cuttings. It can further recovery useful drilling fluids from the drilling waste cuttings, and reduce the oil content on the cuttings.
Function of drilling waste vertical cuttings dryer for oil based mud and oil based cuttings
Oil on cuttings (OOC) is a basic parameter to identify the performance of a Vertical cuttings dryer. Before enter into vertical cuttings dryer, the oil on cuttings (OOC) is normally around 15% ~ 25%. After treatment of Vertical cuttings dryer, the OOC should be reduced to 3% ~ 5%. It is the degree accepted by most of the counties. The cuttings with 3% ~ 5% OOC discharged from VG dryer can be buried directly.

drilling waste cuttings dryer

In some counties with higher standard, the cuttings can be moved to thermal desorption unit (TDU) for further treatment to reduce OOC to 0.5%.
The recovered mud from Vertical cuttings dryer can be reused for drilling. But as the mud is very heavy, Normally, high speed drilling waste decanter centrifuge will be used after VG dryer to reduce the mud weight. After VG dryer and high speed centrifuge treatment, the mud should be qualified for drilling. As there is no environment hazardous materials generated from the drilling rig site after all these treatment, so VG dryer and high speed centrifuge are popular and welcomed by rig site as Zero discharge system.
Many clients may wonder: If the thermal distortion unit (TDU) can reduce oil on cuttings to as low as 0.5%, why don’t the rig site use TDU to treat oil based mud and cuttings directly. The answer is that, TDU is a high energy consumption equipment. And the capacity is very small, the normal capacity of 1 set TDU is 1 ton per hour, and max. 2 tons per hour. And it is cost higher. But VG dryer can treat around 30 tons per hours. Equip VG dryer before TDU can increase treating capacity of the total system.

Recently GN SOLIDS headquarter shipped one set of drilling waste management equipments to Russia, this is a do it again order from our older clients.
The equipments record as below:
One set of containerized drilling waste management system, including one unit involving vertical cuttings dryer in the container, because the cuttings therapy unit will work in Spain area where will be subtract 40 degree area, the particular container is utilized to avoid it from frozen in the winter months. We open the microsoft windows or doors at the area where the operator need to buy and sell or maintenance the gadgets.
One unit of cuttings shear pump , to transfer the cuttings from the mud pit to be able to vertical cuttings dryer
Cuttings collection box, which is each of our standard modular designed system, to collect the cuttings dryer discharged cuttings.
Screw conveyor, which is also used to feeding cuttings to the vertical cuttings dryer. The client bought both cuttings transfer pump and twist conveyor, when the cuttings along with much moisture, cuttings shift pump is suitable, when the cuttings is much drier, we will make use of screw conveyor to move it.

This is not the first set involving containerized drilling waste management system to Russia, almost all of the clients will buy drilling cuttings treatment system together with the container to keep them hot and the equipments with liquids will not frozen in winter. The most popular design is to put the decanter centrifuge and vertical cuttings dryer inside the container, and open up the necessary window and entrances for easy maintenance.
The consumers who bought the related containerized waste management system in Russia 4 yrs ago is still using the equipments very well with proper maintenance, and maybe they are satisfied with the performance.
Most of us also design drilling cuttings treatment system for serious hot countries with air conditioning unit inside the container. If you need an appropriate solution for drilling garbage disposal, pls contact with GN solids control .

There are many different types of explosion proof VFD control panel for drilling waste decanter centrifuge variable frequency drive (VFD) control panel. But fewer company can make VFD panel with air conditioner system.

Other types of explosion proof VFD control panel:

1) The most normal and the cheapest one is flame proof type VFD control panel. Strictly speaking, the flame proof control panel is not suitable for VFD control panel like for centrifuges. It is not good for performance on cooling. It is not suitable for hazardous environment. But as it costs lower and easy to make, when the jobsite does not have high requirement on VFD panel type, and they only want one for running, flame proof panel may be used. Mostly, small companies make flame proof type VFD panel.

2) Another type is positive pressurized VFD control panel. It is confirms with IEC/EX or ATEX standard. It is compact in design and suitable for high temperature area. It is the most popular design for drilling waste centrifuge VFD control panel. It is used together with air source for explosion proof and for self cooling.

3) Air conditional cooling system for drilling waste decanter centrifuge VFD panel is the relative high standard. Fewer companies can make this design, especially in China. GN Solids Control is one of the few companies who have the ability to design and make Air conditional cooling system for drilling waste decanter centrifuge VFD panel.

Advantages of Air conditioner cooling system for drilling waste decanter centrifuge VFD panel:

Firstly, as it is equipped with air conditioner it is not need to connect with the extra air source.

Secondly, it is more suitable for hazardous environment, like for the very cold weather or the very hot weather.

And the Air conditioner cooling type VFD control panel for drilling waste management decanter centrifuge is more suitable for the offshore drilling rigs. As in offshore drilling rigs, the temperature is normally high and the air is high moisture, it is not suitable for pressurized VFD panel.

After entering the 2016 year, the international oil price has gone up in the past several months, but it is still at a low position compared with the price in the past several years.

For GN Solids Control, it has almost been 10 years since it was founded in Tangshan city of China in 2007 year. In the past these years, GN’s business has went through the most biggest expansion and the most fastest increasion compared with the competitors. The most reasons are based on the good quality of GN’s products & good service attitude to customers, but it is relative with the good development environment of oil & gas industry, as most of GN’s products are sold to the customers that relative with the Oil & Gas industry.

Facing the continuous low oil price since the end of 2014, GN has been struggling to expand its business in other fields besides the oil & gas industry. These application fields or industries include,

• HDD or Trenchless Across;
• Tunnel Construction, Piling, Shield Construction;
• Water Well, Geothermal Well;
• Mining;
•  Drilling Waste Management;
• Core Drilling Service;
• 
• In these fields, there is also the drilling mud needs to be treated or liquid-solid separation services are needed. As basically all of GN’s products are mainly used for the solid-liquid separation, so they can be used for servicing when customer has relative requirement.

On April, 2016, 1 set of GN’s mud cleaning system (including 1 shale  shaker, 1 decanter centrifuge, 1 mud tank and some other matching parts) was used in the construction industry for treating the construction slurry in Britain.

So more and more GN’s equipment and systme included mud mixing system are used in other different industries besides the traditional oil & gas industry.

Finally, welcome to contact GN at any time for any product. The best service and prompt support will be at your disposal.

Web：http://www.gnsolidsamerica.com

Email：usa@gnsolidscontrol.com

GN designed and produced decanter centrifuge can be applied for different industries like energy ( oil & gas drilling solids control system, drilling waste management, oil sludge separation, tank bottom cleaning, dewatering unit), construction( tunneling, bored piles machine, HDD, etc) and mining( diamond core drilling waste water separation). When adopted the centrifuges in different applications, we will use different models with different treating capacity.

Right now we have 8 basic models of decanter centrifuge, and each model centrifuge have 2 options for rated speed control panel or VFD control panel, for each model rated speed centrifuge, we provide 3 or 2 speed pulleys for replacement, for example, for GNLW363CG decanter centrifuge, it could be with 3200rpm pulley when ex-works, and extra 2 pulleys with 2200rpm, 2700rpm for barite recovery and high gravity solids. If you need VFD decanter centrifuge, we provide different options with different price, the premium centrifuge with full stainless steel material cover of the  VFD control panel, 3 variable frequency for main motor, back drive motor and pump motor, with PLC smart control with touch screen, and positive pressurized. We also have economic options when you do not have enough budget, 2 motor variable frequency and carbon steel material cover with normal Chinese explosion proof will be considered for cheaper price.

And we can make customized control panel according to the client’s requirement for the explosion proof standard, like IEC EX, ATEX, class 1 division 1, zone 2, etc.

For the centrifuge main bowl assembly, we also have 2 options, premium centrifuge with tungsten carbide tiles protection on the screw propeller, or economic centrifuge with ceramics tiles protection on the screw. When there is not too much solids content and less abrasion, economic centrifuge with cheaper price could be considered.

To choose a best model of GN decanter centrifuge for Energy, Construction, Mining, pls contact with GN solids control sales team.

We will have stock shaker screen, decanter centrifuge, vertical cuttings dryer as well as shale shaker in inventory in our Houston facility. Following we sell some merchandise, we will supply it all over again from China headquarter. We only need one batch of decanter centrifuges and shaker screen received from Houston seaport. The portion equipment include: 2 models GNLW223 decanter centrifuge, as well as 7 pcs wooden containers of shaker screen. The actual Mini centrifuge GNLW223 is usually used for diamond drilling, mining or prospecting, piling, or other development industry. The shaker screen is used as replacement shaker screen for Swaco Mongoose shaker screen, Derrick DE1000 shaker screen, Nov brandt king cobra shaker screen etc . In year connected with 2014, one client by Canada bought 10 models GNLW223 MINI centrifuge regarding diamond drilling project. The particular fine work performance in addition to lower price make clients happy and we build long term romance after that order.

1) Except intended for GNLW223, what model centrifuge do GN have
GN have different model centrifuge several purpose. Decanter centrifuge is utilized more widely, different bowl measurement centrifuge with different speed, can function for different application. We have only 1 model for vertical cuttings dryer, but we have one particular family model for centrifuge.
GNLW553 and GNLW453 is definitely GN big bowl, major volume centrifuge which is used regarding fast drilling. But basically, not too many clients want to use these kinds of model centrifuges because of the bigger price.

GNLW363 is the most well-known model centrifuge which can be utilized for different purpose. The 14inch bowl centrifuge is equivalent to UNITED STATES OF AMERICA brand decanter  centrifuge, eg. Derrick DE1000 centrifuge or Swaco 518 centrifuge.
GNLW363 centrifuge can be used for oil drilling solids control or drilling waste management. The speed are adjustable by variable speed control panel stepless. This centrifuge can also used for waste h2o treatment with super broadband 3800RPM.

2) What shaker screen do GN have?

GN can offer different brand substitution shaker screen, including substitute shaker screen for Derrick, NOV and Swaco.

Other equipment also tock in Houston ,such as shear pump, shale shker, mud agitator etc. welcome to contract us to know more information about solids control equipment.

In order to treat the drilling cuttings, operators need to find the best way to transfer the drilling cuttings to the treatment equipment like high G drying shaker and vertical G cuttings dryer. The most popular way for transfer drilling cuttings is the screw conveyors (Auger Conveyor), and the drilling cuttings transfer pump.

Part 1) Screw Conveyor for Drilling cuttings transfer

Screw conveyor is also called Auger Conveyor, it is one of the most popular equipment for transfer drilling cuttings. The advantages for the Auger conveyor is the simple design, and easy operation, as well as a long length for picking up the cuttings discharged from the shale shakers or mud cleaners on the drilling rig mud tanks. The disadvantages are that, it is not easy to layout for transfer from one equipment to the other, especially for the long distance. Since the conveyor cannot lay at degree over 45 degree. And it is not good to transfer drilling cuttings with high moisture.

Part 2) Vacuum Pump or Solids Pump for drilling cuttings transfer.

The vacuum pump or solids pump are used to transfer drilling cuttings. The big advantages are long distance transfer with easy layout, and it can be use for transfer high moisture drilling cuttings. The vacuum pump or solids pump are driven by air, so it is safe to operate in hazards  areas to be explosion proof. The disadvantage are the power consumption for creating air, and not suitable to pick up drilling cuttings from different equipment like the shale shakers and mud cleaners on the mud tank.

So most of the cases, operators will combine the drilling cuttings screw conveyor and the solids pump together to transfer drilling cuttings to the treatment equipment.

GN Solids Control is able to provide you the screw conveyor and drilling cuttings transfer pump for the waste management operations. Also high G drying shaker and vertical cuttings dryers are available from GN factory in stock.

In this article, we mainly introduce the different between “Solids Control” & “Drilling Waste Management”.

“Solids control” & “Drilling Waste Management” are frequently heard with the drilling mud, what is the difference between them?

Simply, we can say for the “Solids control”, it is to separate out the solid phase from the liquid-phase mud; for the “Drilling waste management”, it is to separate out the liquid phase from the solid-phase drilling waste;

1. Solids Control

Drilling mud is the necessary material for the drilling work especially in the oil & gas drilling, there will be a lot of drilling cuttings when the mud circulates out from the well hole, which will influence the physical property of mud and the mud must be treated before going into the well hole again.

The treatment process with the drilling mud is called “Solids Control”, because mainly the drilling cuttings are the solid particles with different sizes, it is called “Solids Control”.

During the treatment process, the solids control equipments like Shale Shaker, Desander, Desilter, Decanter Centrifuge, Centrifugal Pump, Mud Tank, Mud Agitator will be used;

Usually the treatment process is exited on the well site;

2. Drilling Waste Management

During the “Solids Control” process, the separated out solid particles or drilling cuttings by the equipments like shaker, desander, deacnter centrifuge are same called as “Drilling Waste”.

Usually the drilling waste will be temporarily collected and poured into a pit on the well site. Then regularly they will be transported to the special facility for accepting the treatment, the “treatment process” is called “drilling waste management”.

The main treatment process is to further lower down the liquid content (oil, gas, etc) in the drilling waste (that is also why we say it is to separate out the liquid from the solid) and lower down the harm to the environment.

During the treatment process, the equipments like centrifuge, high-G shaker, vertical cutting dryer, screw conveyor will be used very ofen.

As compared with the “Solids Control”, “Drilling Waste Management” is to further lower down the liquid content based on the former, so the latter has a higher requirements with the equipments.

Such as the centrifuge and high-G shaker, compared with that used in the “Solids Control”, they must have higher rotation speed or vibration strength in the “drilling waste management”.

Finally, Welcome to contact us for any need:

Web：http://www.gnsolidsamerica.com

Email：usa@gnsolidscontrol.com

GN Solids Control dispatched a mud separation plant for building site liquid removal. The system was customized for a European company. Now the mud separation plant arrived the European job site and have been started to use at the building construction site. The client is very happy with the system, and give high praise to GN design mud separation plant and GN fast delivery and reliable services.

Below is the mud separation plant in the clients building construction site. They will use the system for liquid removable. To separate water, grit, stone and also for mud separation.

Previously, when the client contact with GN, they inquire decanter centrifuge to do also the separation jobs. Absolutely, with only a centrifuge, they cannot do the job. GN sales people communicate the clients to make sure their demands and know well their inquires. Then GN team invites the clients to pay a visit to GN Solids Control to check the company and quality by themselves, and have a face to face meeting with GN engineers. After talking with GN engineering team, they work out a turnkey solution for the mud separation project.

• Firstly, a double deck shale shaker will be used for pre-separation.

It is a linear motion shale shaker model GNZS706-HB. It is a compact design double deck shale shaker especially designed for compact mud system, like small mud system for piling, underground construction, trenchless, HDD, waterwell drilling, micro tunneling, etc…

The top deck shaker screen utilize coarse screen to separate stone and big solids. The bottom deck screen utilize fine screen to separate the fine solids. After the 2 steps separation, there will be big solids enter into centrifuge. It can protect the centrifuge well. And another site, it can enlarge the total treating capacity of the whole liquid removal mud separation plant.

• Secondly, a decanter centrifuge is used after shale shaker to further remove the fine solids.
• For a compact design, all above equipment are mounted in a mud tank for small footprint and easy movement.

Composite material shaker screen is a kind of shale shaker screen with metal material as basic frame, and use a special kind of plastic material to fulfill the frame. According to different API size of mesh size, 2 lays or 3layers different opening wire mesh cloth pressed on the metal and special material rubber frame.

All the normal model steel frame screens can be change to composite material, like replacement composite screens for Swaco Mongoose shale shaker, for Brandt King Cobra shale shaker, for Scomi High G shale shaker, and all series GN brand shale shaker (like GNZS752 shale shaker, GNZS703 shale shaker, GNZS706 shale shaker, GNZS594 shale shaker and GN brand high G shaker).

Composite material replacement screen

Features of composite material shale shaker:

• Composite material replacement screen is with longer life time compared with the same model steel frame replacement screen for the shale shaker.
• Composite material is light in weight compared with the same model steel frame screen. It is better for the shale shaker.
• Composite material replacement screen is more suitable for automatical processing line. Means high efficiency and better quality control. Another size, it means more cost effective on price and quality.

As a worldwide famous brand of mud solids control and drilling waste management equipment manufacturers, GN Solids Control is a professional manufacturer on high quality replacement shaker screens. Besides offering replacement screens for GN own brand shale shaker, GN Solids Control also offer high quality replacement screens for other brand.

• GN make and offer high quality replacement composite and steel material screens for Swaco Mongoose shale shaker, for Brandt King Cobra shale shaker, for Fluids System shale shaker, and for other famous brand shale shaker models.
• GN makes high quality and good price replacement shale shaker screen for Derrick shale shakers.
• GN also make customized size replacement screen for other brand shale shaker models. For the clients GN does not made before, the clients send a sample to GN for customize.

Further more GN Solids Control can make customized package and color for the replacement screens. Like with the clients’ company name and Logo on the screens.