drilling waste

Two weeks ago, GN Solids Control completed one set 40 feet water based drilling waste treatment system that is used for oilfield waste management service. Water based drilling waste is coming from the drilling projects where
use the water based drilling fluids to cool down the drill bit, protect the drilling well wall and take out the drilling cuttings.

The main equipment included in this 40 feet water based drilling waste treatment system are as follows:

1) High G force dryer shakers used to further drying the cuttings discharged from the primary solids control equipment, wide open deck design allows the feeding of waste easily
2) Dosing System for mixing chemicals that will fed to the centrifuge for flocculation process
3) High speed Decanter Centrifuge for liquid and solids separation
4) Mud Tank unit under the shaker to collect the liquid going through the shaker screens
5) Screw Pump transfer the fluids to decanter centrifuge for polishing


Drilling Waste Management System

Working diagram of the 40 feet water based drilling waste management system

The drilling waste, always coarse drilling cuttings, was fed to dryer shaker for further drying, and then the screw pump will transfer the drilling fluids with ultra fine solids to the decanter centrifuge (It is also dewatering centrifuge). In the meanwhile, the chemical dosing system mixes polymer, once the polymer solution is cured. The diaphragm pump transfers the polymer to the dewatering centrifuge. The ultra fine solids will get together once meet with the polymer, which will help the centrifuge to separate the solids. The drilling waste management system for separating the ultra solids in waster based drilling fluids is also called dewatering system.

Equipment features of the 40 feet water based drilling waste management system

GN’s high G force dryer shaker has up to 8 G force. with 4 panels composite material screen, the Dryer shaker has an excellent separation and drying performance.
GN high speed decanter centrifuge and feeding screw pump are VFD driven and controlled by PLC. The operators could set the suitable parameters to treat different kinds of drilling fluids.
Besides the drilling waste management system for water based mud, GN also developed the equipment for oil based mud. Even the oily sludge treatment solution is one of GN’s main businesses. GN’s system for drilling waste management has many performance cases that will prove GN equipment quality and availability. This is why customers choose GN Solids Control.

As the first solids control company in China getting vertical cutting dryer this year and the years to come, Hebei GN Solids Control Co., Ltd has been foremost the drilling waste management technology in China with the birth connected with complete drilling waste management system which are now portion in over 10 value packs around the world. Over three pieces are in Africa where our own after sales team is doing having service now, one arranged is in Cyprus for ocean going oil based drilling cuttings therapy. Eights sets are in Italy including four sets provided last December for Baker Hughes. Yesterday, the 9th drilling waste management system is delivered to Russia together with customized insulation covers to get winterization in Russia. It is evident that many solids control vendors in China can producer and provide vertical cutting dryer and drilling waste management system, and GN Solids Control is not the one on lowest price. What GN discover is the high quality at a cost-effective and competitive price. Here is why GN Solids Control finally win many jobs after customers visit every one of the suppliers in China.

GN Drilling Waste Management System
The actual ninth set of drilling waste material management system to The ussr is designed to operate in frosty winter as it always is within Russia with a container as well as heat reservation cover. This specific sets of drilling waste materials management system totally consists of one set vertical cutting dryer with the G drive up to 750 at a twelve hundred RPM and flushing system to avoid blinding on screen basket and at liquids produce channel, two sets decanter centrifuge with one to get solids control the other for more waste treatment, three pieces screw conveyor with a couple of for feeding the up and down cutting dryer and one to get transporting dried powders, in addition to three sets screw pump with one for flushing and two for providing the decanter centrifuge.

GN Solids Control deliveried the 9th range of containerized drilling waste management system with winterization to get Russian client and this is a third containerized drilling waste material management system for a identical client in Russia. Seeing that everybody knows, Russia drilling surgery always in very cold weather and want all equipment and mud tank to be working in winter. That’s why we construct many sets of drilling waste management system and also solids control equipment intended for winterization design.

Main Tools For Winterized Drilling Squander Management System
One set of containerized vertical cuttings dry remain inside of 40 feet gift basket, the vertical cuttings dryer can process drilling cuttings 30 – 50 loads per hour by 0. twenty five to 0. 5 millimeters mesh bracket. The revolving speed is 900RPM with drying efficiency make essential oil content bellow 5 pct. The oil tank capability is 48 liters, the oxygen knife installed to help stay away from screen block especially by means of water base drilling cuttings.
Three sets of mess conveyor installed, 2 units of the screw conveyor will likely be working to feed vertical cuttings dryer and the last a single for delivery the shop drilling cuttings after up and down cuttings dryer.

Two value packs of decanter centrifuge fitted, one set install VFD control panel for modify centrifuge speed from zero to 3200 RPM and also the other one is fixed velocity centrifuge on 3200 RPM. the 2 sets of decanter centrifuge installed on solids control mud tank and the centrifuge will be working to recycling going mud that out of straight cuttings dryer.
Three range of screw pump, one of them will likely be working for flushing dryer liquids outlet and the other two will be working for feeding decanter centrifuge.
All the above drilling waste management equipment place in a container and the burial container sit on the tank skid and the skid with a include installed for winterized design and style.

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For the mining, GN have made a few customised layout systems, the first one is for Poultry, the customer co-design the system along with GN; then for the coring ming project, we style and design a very small system to get diamond drilling; then some decanter centrifuge with different layout for mining or prospecting water; now another customized system for Philippine mining or prospecting project.
This system contains a shale shaker, two centrifuges. The problems delivered to us is: deep subway, have mining water, having mixtures, different particles, which will destroys the pump which usually keep pumping the lakes and rivers out to keep it able to perform there. The pump is created in German, good quality, but expensive, we want to keep it within good condition, and not easy to get repalcement parts. To sum up, we need another technique to make the pump running properly.
Then we tried a variety of choices, to keep it below ground, or keep it along with the land. To only start using a centrifuge, or use several centrifuges. And questions continually come like do we need shaker, do we need desnader and many others.

Hydraulic Jackup Mud Recycling System

With the professional help from clients’ engineer, we finally what is design, and also modify this current operation flow of the mining or prospecting water. Then finally detox the singing water, and then transport to the surface. Considering that the purpose is not for consuming, so do not try.

Furthermore in the mud recycling system, it contains 2 Nemo pump, which is manufactured by German Netsch.

Specifications connected with decanter centrifuge
we have VFD cp to achieve stepless bowl rate adjustment to enhance mud treatment method performance
we use De dos niveles stainless steel SS2205 for centrifuge casting to improve bowl sense of balance, centrifuge balance, as well as progress performance on corrosion weight.
We use Tungsten carbide tiles protecting the twist conveyor impellers to enhance the particular performance when treating large mud.
When the system appear the site, GN solids control engineers should go to the site for the first time having and also operator training. To be sure all goes well and the right way.

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GN Solids Control mud recycling systems are widespread in the world. Mud systems may be used in oil and gas area in addition to HDD, TBM Drilling, CBM Drilling or Water Very well Drilling. Last year, GN offered two sets of high construction mud recycling systems to get no dig drilling to 1 Asian client. Just some days and nights before, GN Solids control provided another set soil systems for one client coming from Philippine.
With a compact framework, this system is mainly used to distinct dirty mud can get clean up water. By using this set, each of our client can get water wherever possible, and solids can be individual out for further treating. The item mainly includes the following accessories:
1 . GN shale shaker GNZS594E-HB, 1 set
The dealing with capacity of this shaker will be 600 GPM. By using world renowned vibration motors like German OLI or USA Charlie, GN shaker can work to get a quite long time without cracked.
After the mud is shipped to the shaker from the serving box, the 4 portions shaker screens will distinct out most the solid waste. GN using good quality cable mesh to manufacture individuals shaker screens in order to keep going longer while also has a pretty excellent separating performance. GN likewise manufactures some other shaker window screens to replacement well-known shaker screens, such as Mongoose, Brant, Derrick etc .

2015.05.27 500gpm mud system
2 . GN decanter centrifuge GNLW363CG-VFD, 2 units
These 2 sets centrifuges both have one 14 inches rotating bowl. Running rate can be changed easily by employing touch screen when using the VFD manage box. GN VFD package is using ABB or Siemens electrical components for long life use. Different explosion proof cardboard boxes can be customized based on customers’ demands, such as IEC, ATEX.
The first variable speed centrifuge is rotating at a decrease speed compared with the second just one. It mainly used to separate out and about those solids with a greater diameter. On the other side, the second centrifuge is used to separate finer debris at a higher speed.
3. GN Screw Pump, 2 pieces
These 2 screw pumping systems are used to feed the decanter centrifuge without agitating the soil too much. GN is using well-known positive displacement pumps Netzsch.
4. GN Mud tank
All the above equipments tend to be fixed on one mud aquarium.

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GN just finished an order for a customer from Russia who required the drilling cuttings dewatering decanter centrifuge and some cuttings transferring equipment.

2015.1.3 High Speed Centrifuge (1)

GN High Speed Centrifuge

The decanter centrifuge is common seen and widely used equipment in the drilling industry to remove the solids from the drilling fluids. While the centrifuge unit involved in this order GN’s most popular model GNLW 363 series. The bowl diameter of the centrifuge is 14 inch. For this model, GN could provide 2 speeds of 2670 RPM and 3200 RPM by changing the belt pulley. For different speed, the unit could be used for different processing. For barite recovery, the low speed 2670 would be suggested. While for ultra find solids separation or dewatering project, a high speed would be preferred.
GN provides 2 options to customer for changing the speed of the decanter centrifuge. As mentioned above, one way is to adjust the speed by changing the belt pulley, once the belt pulley fixed, the speed are fixed. Another better solution is to use a VFD model, GN’s design of PLC variable frequency drive decanter centrifuge GNLW363- VFD could realize the typical working speed various from 0 to 3200RPM which could meet various processing demand.

2015.1.3 High Speed Centrifuge (2)

GN Screw Conveyor

Attached with the decant centrifuge, the customer also required the transferring equipment. What GN provided for this order is the Screw conveyor which is also called auger. The auger is widely used transferring equipment in the job site for drilling and some other industry projects. GN’s auger is classified as 12 inch, 14 inch and 16 inch for screwy diameter. According to customer actual working condition, GN could design the auger with fully power could meet the customer requirement for transferring the cuttings with certain slant degree. The motor installation type has horizontal and vertical type for option.
GN can also provide the vertical cuttings dryer which is also critical equipment in the drilling waste cuttings management projects. For more information, welcome contact with GN Solids Control.

Verti G cuttings dryer is specially used in drilling fluids solids control system to recover the waste cuttings out from the primary shale shaker and mud cleaner. At present, the company CSI is the world accepted most famous manufacturer for the Verti G cuttings dryer unit. No matter on quality and production series, CSI is the No. 1.

GN verti G Cuttings Dryer with Flushing and Blowing System

VVerti G Cuttings Dryer Unit

GN Solids Control has been dedicated to design and manufacture the Verti G cuttings dryer in the past three years, and now GN 2nd generation cuttings dryer have been tested successfully and already applied on site. GN’s verti G unit is workable for both the water based drilling mud and oil based mud which makes GN Solids Control occupy the first seed in China solids control market. To ensure the smooth performance of the verti G dryer, GN equipped on the unit with flushing and blowing system.

GN Verti G dryer flushing system

The flushing system on GN second generation verti G cuttings dryer is consisting of a screw pump and relative hoses. Usually the material getting into the Cuttings dryer would be high viscosity and dry. With the rotating of the dryer bowl, the fine solids and liquid would be sprayed on to the inner surrounded wall of the bowl and stick on it. To clean the inside of the cuttings dryer, the screw pump would feed clean water into the bowl. Under the high pressure of the flushing water, the fine solids and dirty liquid would be flushed down from the wall and get out from the dryer vessel.

GN Verti G Air Knife System

One of GN first generation Verti G cuttings dryer defects is that the discharged solids out from dryer unit is not dry enough for easy transportation. The air knife design could solve the problem of the block on the rotating screen opening. GN’s vertical cuttings dryer has 3 types screen for option, the opening is 250 microns, 350 microns and 500 microns. Under high pressure of the blowing air, the blocked opening of the screen would open and the solids would be blow to much dryer. This greatly enhances the working efficiency and makes the transportation of the discharged solid very easy.
Besides the verti G dryer, there would be another important equipment called decanter centrifuge which would remove the much fine solid particles in the drilling mud.

At the end of the Past August, GN Solids Control attended the Shanghai CIPPPE 2014 and shown there 1 unit GNLW363BG-VFD decanter Centrifuge. The visitors from oil industry paid much interest on this unit and awarded the unique design of the structure.
The model GNLW363BG is the second generation of GN decanter centrifuge. This unit is with the main drive motor and back drive motor located on the same side. Thus more space is saved to locate the fixed speed control box and for operator standing. The main motor is connected with rotation bowl directly, and the screw propeller inside the bowl is driven by the back motor through belt pulley. Comparing with GN first generation centrifuge, 1 set belt is saved.

2014.09.06 CIPPI 2014 Shanghai Oil Show

GN Decanter Centrifuge

GNLW363BG centrifuge has 2 models of fixed speed and variable frequency drive. For the common drilling fluids solids control, GN always propose to use the fixed speed model for barite recovery. The normal fixed speed of GNLW363BG is 3200 RPM, and it could be adjusted to 2600RPM by changing the belt pulley. GN could provide the belt pulley for both speeds. To change the belt pulley may take some time, and then a better way is to use the VFD model.

The GNLW363VFD is equipped with 1 unit positive pressurized design PLC control panel, which make the speed is ranging from zero to 3200RPM, the operator could adjust the speed as per the actual working and mud condition. The rotation bowl assembling unit is seen as the key part for the decanter centrifuge. Beside the material of SS2205 of the main body of the bowl, the screw is protected by bolting the tungsten carbide tiles. And to avoid the solid accumulation at the solid discharge port, the GNLW363 has the design of solids plow at the discharge port, which could effectively reduce the settlement of the solids. And at the big end of the bowl where the liquid is discharged out, the liquid discharging plates are adjustable to adjust the humidity of the discharging solid cuttings. The operator could also reduce the solids accumulation by increasing the humidity.

Now, the GN third generation decanter centrifuge is under fabrication processing, this generation would much better solve the problem for solids accumulation and extent the critical part life time. GN sincerely appreciate the support and trust coming from the customers.