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The modular waste cuttings drying units are meaning the separate equipment used for drilling waste cuttings drying processing. Equipment with frame, skid, beneath installed tank, these equipments could be used both independently and worked as an assembled drilling waste cuttings management system.

The reason that GN solids control made this kind of design is to provide more customized solution and save the customers with great funds. According to the feedback from the customers who are always working on the oilfield, GN firstly launched the skid mounted drilling waste cuttings management system with the key equipment vertical cuttings dryer and waste decanter centrifuge mounted on the same skid. This complete skid could be moved by only 1 trailer, which is the customers’ preference. While some other customers came to GN and ask whether they could get single equipment and connecting with their existing waste cuttings drying equipment. Or due to the limited space on site, they cannot put a 40 ft skid on the site, they are seeking some units could be located more freely. The modular waste cuttings units are exactly what they are looking for.
GN’s modular waste cuttings drying unit series includes telescopic skid vertical cuttings dryer and decanter centrifuge, High G force drying shaker with under located catching tank, the intermediary tank specially for effluence storage, waste cuttings transferring unit and the waste collection container unit.
According to the base of the drilling mud, the user could choose to use the cutting dryer or high G drying shaker as the critical equipment to make a complete waste cuttings drying system. Comparing with the 40ft size design, the modular unit has the advantages of freely located onsite and the connecting is more customized. The user also could choose several units of the complete line according to their budget.
GN’s modular waste cuttings drying units have been used onsite and the feedback is returned good. Keeping providing the customer with good solution and bringing benefit for the customer is always GN’s purpose.

As a leading drilling mud recycling equipments manufacturer, GN solids control is keeping design new products that can be applied on the oil field. With more and more new products launched, GN’s products line is getting much wider. Besides the normal solids control equipment and system drilling waste cuttings management system, GN solids control has developed the waste cuttings solidification system for disposal of the waste materials.

The waste cuttings solidification system could also be called as curing system. It always includes 3 parts: waste cuttings collection unit, curing agent storage unit and solidification and mixing unit. GN’s solidification unit is also design like this, the picture shown how does it look like.
The waste cuttings collection part of this unit is a big opening hopper which can collect the waste cuttings conveyed from the primary solids control system. In case the screw conveyor onsite broken down, the operator could use an excavator to put the cuttings into the hopper.
Under the hopper, there is also a screw conveyor could transfer the cutting to the mixing bowl unit.
GN’s solidification system has 2 stainless steel material tanks that used for storing the curing agent. One tank is for cement powder, the other one is for other curing agent. According to different site condition, the operator could add the different curing agent into the mixing bowl. The curing agent is also transferred to the mixing unit by separate screw conveyors.
The waste cuttings solidification and mixing unit is also made from stainless steel with 2 inlet ports controlled by valves. This 2 inlet ports is used to feed the water and other acid or alkali liquid that helpful for curing processing into the mixing bowl. The stainless steel material would have a better anti-corrosive feature for these liquids. The feed rate into the mixing bowl of the waste cuttings and curing agent are all adjustable.
After fully mixed, the hazardous material in the waste cuttings would be closed and will not leak into the nature. The cured material could be buried directly or used for road paving.
GN’s waste cuttings solidification system could be connected with the normal solids control system and drilling waste cuttings management system. After drying firstly by the cuttings drying system, a better solidification effect would be got. According to different site condition, the operators choose to use screw conveyor or cutting pump to transfer the cuttings. And the layout of the equipment will be little different. For more information on GN’s solidification system and waste cuttings drying system, please contact with GN sales team for an elegant brochure.

For the upcoming no dig show this September in Australia, GN solids control would like to show there one set self-contained 200 GPM drilling mud recycling system for HDD projects. As a leading manufacturer especially for drilling mud recycling equipment, besides the large footprint mud system for oil drilling, GN solids control could also provide compact structure design mud recycling system.
According to the HDD rig mud flow, GN’s economic mud systems are classified as 150/200GPM, 350GPM, 500GPM, 800GPM/1000GPM and 1500GPM. Just like the unit of 200GPM would be shown in Australia, though it is small footprint, it has all necessary functions for drilling mud recycling and mud re-configuration.

Below is the equipment list for the 200GPM unit
1. GNZY753-4N shaker and de-silter composition unit which has the functions for first stage primary solids separation and second stage for drying the solid discharged from the 4” cyclones. This unit has a top located buffer box for well back drilling mud feeding, the bottom layer screen of this unit remove the coarse solids, liquid goes through the mesh screen opening and gets down to the storage tank. Pumped by a 15hp centrifugal pump, the liquid was transferred to the de-silter cone for fine solids removing. The upper layer screen with much finer opening would block and separate out the finer solid cuttings.
2. GNSLM20A-110 Jet mud mixer is used for adding the mud chemicals and re-configuration of the drilling mud. The beneath located mud tank was divided into 2 compartments and one of them is used for mixing and storing the active drilling mud. The mixing pump adopted is same with the one for feeding to de-silter cones. That would be much easier for future maintenance and parts replacement. The mixing pump could also be used as discharging pump for transferring the active mud to the rig.

GN also has more compact unit for de-sanding, by connecting the de-sanding unit with a customized mud tank, the operator could run the mud recycling system more fit their own project condition. For more information on GN compact mud system, you may contact with GN team without hesitate.

As per the feedback from the customers who are engaging in the pilling business, GN designed and perfect the economic mud recycling system specially for the drilling mud cleaning application in piling project. On the consideration of limited location area of the piling project job site, GN’s piling mud recycling system is designed with a very compact structure but with full functions for drilling mud recycling.

Below is the standard configuration of piling mud recycling system with treating capacity of 500GPM.
Model: GNMS500-D
Flow Rate: 500 gallons per minute
Cyclone Specs.: 1 pc 10” de-sanding cyclone made from 100% polyurethane
Screen Specs.: Shale shaker with up and down 2 layers screen with total screen area of 2.23m2
Feeding Pump: Mechanical seal type centrifuge pump of 50 HP used to feed mud to the de-sanding cyclone
Cut Point: Solids Removable down to 40 microns
Catching Tank: Under located catching tank for mud storage. The tank is equipped with lighting system and ladders for easy operation.
Electrical Control System: Explosion, water, and dusty proof electrical control panel with SIEMENS or Schneider components

GN also has the model of GNMS200-D and GNMS1000-D available and the treating capacity is separately 200GPM and 1000 GPM.
The advantage of this type mud recycling system is cost competitive. By connecting with storage tank and mud mixing hopper, this de-sanding unit could also be used in other kind of project like the small horizontal directional drilling, micro tunneling and water well drilling.

GN recommends the layout of this economic mud recycling system:
1) Mud Pit
2) Submersible Slurry Pump
3) Mud Recycling System
4) Storage Tank
5) Outlet Pipe
6) Jet Mud Mixer.
GN Solids Control also offers submersible slurry pump, mud storage tank, as well as jet mud mixer per request.
GN is now on promoting this type economic mud recycling system, for more information, you may sent inquiry to sales@gnsolidscontrol.com

Still feel difficult to find a good solution to dispose the drilling waste cuttings? GN solids control now has developed the complete treating system for to drying the drilling cuttings and recover the drilling liquid stick on the cuttings maximally.

As per the market feedback and customer’s requirements, GN has independently designed 2 series waste cuttings management system with the Model No. of GNCM-40A and GNCM-40B.

The Configuration of GN Drilling Waste Cuttings Drying System

First Stage separation: GN’s drilling waste cuttings drying system mainly includes 2 modules, in which the first module is the vertical cuttings dryer system. The cuttings dryer model of GNCD930 is designed with fixed speed and variable speed. The cuttings with size larger than 250 microns could be removed by the screen located inside the dryer bowl. By using the material of stainless steel, the screen would have better features of anti-corrosion. With the air knife and flushing system on the cover of the dryer, the dryer could consistently for longer time without blocking on the screen. The super high speed of 1200RPM could produce the G-force of 750. If application for the oil based drilling cuttings, the oil content could be reduced down to 3-5 percent.

Second Stage Separation: The fluid going through the screen opening of the cutting dryer would be fed into the high speed decanter centrifuge series of GNLW363CG with working RPM of 3200. Here, the solids down to 2 microns could be separated out.

In this system, both the cuttings dryer and decanter centrifuge have fixed speed and variable speed models for option which could meet the customer’s request for different drilling mud conditions. GN’s VFD control panel is PLC smart design with visual and touchable screen for easier operation.

For this system, we also provide the feeding pump system. And as per customer’s option, GN could also provide the cuttings delivery system screw conveyor for feeding and discharge.

The customer could choose to locate the decanter centrifuge on the telescopic frame or catching tank. That is also the difference between the model of GNCM40-A and GNCM-40B. The GNCM-40A is to put the centrifuge on the telescopic frame with the height adjustable, the discharged clean liquid would pipeline manifold guiding to other catching tank. While the GNCM-40B is self with the catching tank beneath the decanter centrifuge, the liquid could be stored in the catching tank and wait for pumped to reuse.

GN drilling waste cuttings drying system is an excellent solution to make the cuttings dry so as suitable for transportation. And it maximally recovers the drilling liquid to reduce the drilling cost.

In some mining projects, before the exploitation, the contractor would like to do some research on the geological condition. The most popular method is to use the core drilling machine to get some sample of the stratum. By analyzing the stratum sample, the mining operator would get some basic information like the mineral reserves and what kind of the mineral it is.

When getting the sample of the stratum, the contractors always apply to use the core drilling machine to get a series column shape stratum. The drilling bit is a type of pipe, not like the drilling project for oil and gas, the core drilling not need too much drilling fluids to cool down the drill pit and take the cuttings out from the drilling whole. However, in order to make sure the better performance of the drilling process, the drilling contractor always will get a solids removal unit to separate the drilling cuttings from the drilling fluids.

Now the solids removal package unit specially for core drilling designed and manufactured by GN Solids Control has already been applied on site and the performance was proved good.

In GN’s solids removal package unit, the equipment involved is as below:

Shale shaker model of GNZS752 with 2 panel screens, which is used as the first stage solids removing unit to separate out the larger size solids in the drilling mud.

High speed decanter centrifuge GNLW223 which is also the key equipment in this solids removal unit. It could run at a typical speed of 3800 RMP that ensure a good performance for dewatering. The semi-dry solids discharged out from the centrifuge unit could be transported easily.

Considering the requirement of the small footprint, this solids removing unit is designed structure compact and the mud tank only has 2 compartments separately to be used for sand settling and mud mixing. The centrifuge pump used in this system could both transfer the mud to centrifuge and mud mixing. This dual function centrifugal pump saves great power cost and reduces the system size.

For the power supply, GN could also provide a diesel generator as an option.

GN Solids Control is welcoming the customer worldwide come to us for learn more about the core drilling solids removal unit.

GN has promoted the 4^th generation of the vertical cuttings dryer. After few-year upgrade on the structure and perfection on the design, GN’s vertical cuttings dryer could be applied in both the water base mud and oil base mud drilling waste cuttings drying projects.

Generally, the drilling waste cuttings processing job requests a complete system that will involve the cuttings transfer equipment, drying equipment, liquid storage vessel , liquid transferring device as well as the ultra fine solids removing unit.

Some customer prefer to getting a complete cuttings drying system from GN. GN cuttings drying system is designed as a skid mounted tank and frame stand system. In this system, there are the vertical cuttings dryer and high speed decanter centrifuge that are located on 2 ends of the skid and supported by the frame. The cutting dryer is fed with the sick cuttings via the screw conveyor. Besides the screw conveyor, the hose pump can also be used to deliver the cuttings from the primary solids control equipment like shale shaker and mud cleaner. Sometimes, the cuttings are coming from several different sites and collected to be transported to a facility for treatment. Under the cuttings dryer, there is a chute that is used to guide the dry cuttings to the collection box after separated by the dryer unit. And the liquid would flow into the V-type storage tank waiting for further treatment. The liquid is transferred to the high speed centrifuge by the screw pump and there the fine solids would be removed out. By locating the dryer and centrifuge on the frame, it is easy for solids removing through the under installed chute.

Some customer may only request the cuttings dryer unit if the already have the centrifuge. GN could also provide the single cuttings dryer unit on the frame. And the customer could connect with their existing slurry transferring device and centrifuge unit to make it a complete waste cuttings management system.

GN’s vertical cuttings dryer is always equipped with a screw pump that is used to flush the screen inside the dryer to avoid blocking. This pump is located on the skid but under the frame to save the space. The customer could choose to use the fixed speed or variable speed model for the cuttings dryer and centrifuge, if VFD model is selected, the control panel could be located un the frame which is also easy for transportation.

Few months before, GN got order of 4 pieces decanter centrifuges from one Africa drilling company, after the jobsite actual operation, they placed the repeated order of 6 pieces decanter centrifuge. Many of the GN’s customers are this kind of old customers. A certain percentage of GN’s business is coming from the old customer who is satisfied with GN’s equipment performance.

This total 10 Sets decanter centrifuge are all package provided with the feed pumps. While for the centrifuge, there are both the fixed speed model of GNLW363BG and the variable speed model of GNLW363BG-VFD. The feeding pump is provided as a package solution for the customer; it is also an option for the customer.

The parameters of the centrifuges and feeding pumps are as below:

GN’s fixed speed centrifuge is designed typical speed of 3200 RPM, while maximum speed is 3900RPM. And there are different belt pulley for option and could also be package provided, the belt pulley are 2500RPM and 2200 RPM. The variable speed model could be adjusted from 0 to 3200 RPM. GN’s 363 series decanter centrifuge is designed bowl diameter of 14 inch and bowl length 50 inch which is very popular used in the drilling mud solids control and waste cuttings proposal processing. The treating capacity of 130 GPM could meet the general application demand on site.

GN always recommends the feeding pump for the provided centrifuge. The pump proposed is positive displacement type screw pump. The main material of the pump is stainless steel of SS316L that make sure a long life time and better feeding performance. The gearbox used for this pump is from Germany Nord. The capacity of 30 cubic meters per hour is matched to the treating capacity of the centrifuge.

GN’s decanter centrifuges are more and more used in the jobsite of drilling company worldwide. It is the stable performance won the customers trust and got the repeated orders for GN Solids Control.

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

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.

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.

Environmental protection is being given more and more attention in whatever projects. Some corporation in the business of river and later cleaning has a main business is to make the polluted river and lake clean again. The method they are always using is the separate the solids out from the water step by step, then the produced water would be clean enough to flow back to the river or lake.

The dredging boat is the most used to get the slurry out from the bottom of the river or lake. That is the very first step. Then the slurry would be guided to a pool or tank. There a coarse screen would be located to separate the very large size is the slurry like the tree remains, beer cans and something else.
Then the treated slurry would be pumped into a solids and liquid separation system. Simpler than the oil gas drilling mud solids control system, the mud system is designed with the coarse shaker which is fixed with gap screens. As we know, the solid separation is a step by step procedure, after separation by the shaker screen, the slurry would also be fed to the desander unit and desilter unit. After treated by the desilter, the solids with size large than 20 microns would be removed out.
The separation procedure after the desilter is much difficult as the solids is really fine. The operator always need add flocculate agent into the slurry to make a flocculation block which could be easily separate out. A machine with name filter press is always be used to remove the flocculation block out from the slurry. The capacity of the filter press is really small, so, in one project, always several units filter press would be used. The mud cake out from the filter press would be very dry.
In general condition, after separation by the filter press, the water can be guide back to the river and lake.