GN Solids Control made a small liquid and solids separation system. The small system is customized for an Europe company per clients request. The client asked for a small recycling unit with cleaning capacity of about 12-15 m³ / hour. The client wants a small single centrifuge in the small recycling system.

GN Solids Control customized a compact system which is composed of a small size shale shaker and a mini size decanter centrifuge. The shale shaker and decanter centrifuge are located on a mud tank together with a centrifuge feeding pump and electric control cabinet for the whole system. Tank size for the whole system is 3900Lx2250Wx1300H (mm) for easy movement. It is a small capacity recycling system with turn-key solution. All connections inside the system are included.

The Shale shaker separator model is GNZS752F-MDZF. It is a 2-panel small size shale shaker with small footprint.

The Decanter centrifuge model is GNLW223D-VFD. It is a 9” baby centrifuge for fine solids separation. The Cut point of GNLW223D-VFD centrifuge is 2 ~ 5 microns.

The color, brand and logo are all customized per client’s request. GN Solids Control is capable to make other customized system per clients job site situation. Clients can contact GN Solids Control sales engineer to get customized solutions.

Besides the small mud recycling system, GN Solids Control makes various sizes of Mud Recycling System for HDD, water well drilling, Trenchless, Piling and TBM activities.

The major applications of GN mud recycling system covers below field, but not only limited to below:
1) Trenchless HDD Project
2) Bored Pile Project
3) Micro TBM (Tunnel Boring Machine)
4) Diamond Drilling, Water Well Drilling etc

Below are some Mud Recycling desanding plant Models GN can make:
D Series Mud Recycling Models:
1)GNMS-200D Capacity: 200GPM, 50m3/h
2)GNMS-500D Capacity: 500GPM, 120m3/h
3)GNMS-1000D Capacity: 1000GPM, 240m3/h
4)Other models should be customized per clients’ request

Many clients do not know how to choose the right model solids control and drilling waste management equipment to suit for their projects. Below are some comments and suggests from GN Solids Control to help clients make decision. For more assistance, clients can contact GN Solids sales engineers.

1. Shaker screen. To ensure accurate cut point, clients must to choose replacement shaker screens which are confirmed to API RP13C. In order choose the right model replacement shaker screen, firstly clients need to confirmed the shaker model, once shaker model confirmed, screen size is known. And then based on the requested separation point to choose right API size. For different brand replacement shaker screen, the same API size screens are interchangeable.

2. High speed Decanter Centrifuge or low speed decanter centrifuge Package complete with feed pump, connection hoses and control panels.
GNLW363C fixed speed centrifuge is recommended as high speed and low speed operation. It is the most popular size 14 inch decanter centrifuge. Operators can change pulley and belt to get another fixed speed.
Fixed speed centrifuge is easy for operation and maintenance, and its cost is much lower than VFD centrifuge or FHD centrifuge.

3. Screw conveyor Auger transfer for drilling cuttings
GN Solids Control makes screw conveyor with auger diameter vary from 10″ 12’’ 14’’, 16’’ and 18’’. The auger body is equipped with grab wire for emergency stop.
Suggest clients to choose a size auger to min. spare parts stock.
GN augers are combined by standard length 12ft per section. 14” dia. with 36ft transfer length is recommended. You can remove the middle section to use it as 24ft, or add another middle section to use as 48ft.

4. Sludge transfer pump
GN Solids control have various types transfer pump. Clients should tell GN Solids Solids Control their request for model selection, like what is the material for transfer, mud, cuttings, solids, or others? What is the transfer capacity want to reach? What is the transfer length? GN Solids Control has submersible slurry pump, and vacuum pump for solids and sludge transfer, it is driven by air. Users should offer air supplier. It can be supplied by air compressor, or supply air from the rig site. GN Solids Control also makes centrifugal pump.

GN screw press dewatering unit is designed and made to treat sludge and sewage waste water. GN screw press dewatering machine is widely used in sewage treatment projects of municipal, aquaculture, food, starch, oil, pharmaceutical, chemical, paper, leather and other industries.

GN screw press dewatering unit is a kind of economic and environmental friendly sludge dewatering treatment product. It is a new type of sludge extrusion dewatering equipment by using the principle of screw extrusion, through the strong squeezing force generated by the change of screw diameter and screw pitch, and the tiny gap between the floating ring and the fixed ring, to realize solid-liquid separation.

GN dewatering screw press unit includes below items:
1.PLC Smart control electrical panels for automatic control.
2.Chemical enhancing dewatering system for mixing and dosing flocculants into the waste water, slurries or sewage.
3.Sludge thickening and dewatering device
4.Liquid collecting tank to receive the recovered water from the screw press treatment.

GN dewatering screw press unit is with automatic control technology, which can mix and enhance flocculants automatically. After chemical enhancing, the screw dewatering press unit can running continuously to complete the sludge thickening and squeezing, finally return or discharge the collected filtrate liquid.

Besides dewatering screw press unit, GN Solids Control also makes automatic tank cleaning system. GN system is running automatically after preset parameters of the control panel. By adding the right tested chemicals, operators can achieve a satisfied liquid separation result. It can save time and save water in this case to further save cost. Some users of automatic tank cleaning system mentioned that, before without the automatic tank cleaning system they took 4 ~ 5 workers to clean one tank with 4-6 hours, now they just need 2 workers to clean one in 2-3 hours. It saves 80% man power and operation time.

If clients could share some technical demands, GN Solids Control is willing to check with engineering team and offer a customized solution to suit for clients; projects.

Shale shaker model GNZS594F is designed and made by GN Solids Control to treat drilling mud for oil and gas drilling, HDD, TBM, CBM and other drilling activities. It is a linear motion shale shaker.

GN Solids Control keeps optimizing the product design and material base on jobsite performance. GNZS594F is the 6th generation shale shaker from GN Solids Control. It is the latest shale shaker model from GN Solids Control. It avoids most problems happened before and add some additional features per clients’ demands to make the shale shaker more durable and more user friendly.

GNZS594F shale shaker uses the same shaker screen with Mongoose shaker. GN Solids Control also makes mud cleaner with the same under flow shale shaker GNZS594F. The hydra cyclone unit on top of the shaker deck is easy to be removed. Once remove the desander and destiler cone unit, the mud cleaner can be used as a separated shale shaker.

Compared with other brand shale shakers, GN Solids Control shale shaker owns significant advantages:
1) GN GNZS594F shale shaker is utilizing composite frame pretension shaker screen, its life time is longer than traditional metal frame shaker screen and hoop type shaker screen. And composite frame screen usable area and screen conductance is better than traditional metal frame screens.
2) GN GNZS594F shale shaker and mud cleaner is fixing shaker screens by wedges. Compared with fixing screens by bolts, wedges is a very much and easy way for screen changing.
3) The GN shaker bed below the shaker screen is made from stainless steel to have anti-corrosion features for longer life. And the whole shaker deck is after heat treatment for more durable.
4) GN Solids Control shaker deck is sealed by oil-resistant sealing rubbers. It is GN patent design. And the shaker deck sealing rubber is interchangeable. The patent shaker screen seal technology can avoid fine solids bypass, and it makes the shale shaker deck easy for maintenance.
5) Mechanical Deck angle adjustable while working system to work reliably for different drilling fluids

Some sets of 500GPM mud desander plant will be ready for shipment in the coming week. They are ordered by a China domestic client for their trenchless drilling machines. The mode of these 500GPM mud desander plant is GNMS-500D. It is a very compact desandind plant to treat drilling mud from trenchless drilling well. The GNMS-500D desanding plants are customized with clients color and brand.

There is a double deck mud cleaner used in the system. The dirt drilling mud from trenchless well will be fed to the bottom deck of the double deck desander mud cleaner. As there are high sand contend and even rocks from the trenchless drilling well, PU screens or metal frame screen with bigger screen opening will be used for the bottom deck for screen separation. After the screening separation, the rocks and sands bigger than the screen opening will be 100% removed from the system, the liquid phase will pass the screen and fall down to the mud tank.

A centrifugal pump on the tank slop will suck and transfer the shale shaker recovered drilling mud to the 10’’ desander hydrau cyclone for desanding separation. The cuttings point of 10’’ desander hydrau cyclone is 57 microns. The clean drilling mud separated from 10’’ desander hydrau cyclone will flow to trenchless drilling rig well, or goes to storage tank. Hydrau cyclone is not a 100% separation device, there will be some percentage of usable clean mud be discharged together with sands.

As the 10’’ desander hydrau cyclone unit is mounted on top of the double deck shale shaker. The discharged dirty mud will be separated again by the upper deck screens to further recovery the usable drilling fluids. There are pressure while the dirty mud discharged from 10’’ desander hydrau cyclone, if they falls down to the screen surface directly, the mud will damage the shaker screens very soon. In order to protection screen and extend the life time. GN Solids Control equips small hopper under the 10’’ desander hydrau cyclone for damping.

After oil and gas well drilling, there are a lot of drilling fluids cannot be used, as the drilling job is finished. The drilling mud may come from the usual solids control equipment which is used for oil well drilling mud recycling system, like from shale shakers, desanders, desitlers, mud cleaners, designers, degassers. And in some oil well drilling rig sites, the drilling mud may come from the decanter centrifuge separation.

And the drilling fluids are hazardous to environment. They are not allowed to be discharged into environment directly. Clients need to treat the used drilling mud after drilling well finished. The solid equipment mentioned above are used for the circulation of drilling mud. But after drilling, there should be another separation equipment to treat the recovered clean drilling fluids. The new approach is to dewater the drilling mud after use of drilling mud to reuse water.

Drilling mud used in oil well drilling is recovered from solids control equipment like shale shaker, mud cleaner, desander, desilter and decanter centrifuge, there is no big size solids side the solids. The PSD (particle size distribution) is variable but around figure will be 30% of below 5 microns. If it is water base mud, the water content is around 80 ~ 90%. And the solids content is 10 ~ 20%. There is no oil for water base mud.

In this case, clients will need to do dewatering treatment to recover the water from drilling fluids for reuse. This is a conventional dewatering of water base mud to produce reusable water and the challenge is on the economic side as the effluent water must be of the same price compared to landed price to rig site of fresh water. After dewatering treatment, clients want to get Semi clear water with neutral pH reusable (water parameters still to be determind).

If you are interested for the proposals to dewartering the used drilling mud from oil well drilling, please visit the GN Solids Control website:
Or contact GN Solids Control sales engineers.

GN Solids Control is a mainly focusing on liquids and solids separation. GN Solids Control is capable to make waste water treatment system. GN Solids Control can make waste water treatment system to treat both oil slurry and non-oil slurry. The separation system for oil surry and non-oil slurry is not the same.

GNWTU-50A is a waste water treatment Unit specially design and made by GN Solids Control. The waste water treatment Unit is a special designed system for construction mud settlement, as well as for industrial waste water settlement. The maximum discharge rate of the GNWTU-50A waste water treatment Unit up to 50m3/h. It is a system designed to treat non-oil slurry.

GNWTU-50A waste water treatment Unit can be used for medium size sites such as civil engineering projects, or building project, like piling, and micro tunneling etc…

After the chemical dosing separation application, the suspended solids content can be below 50 mg/liter. In this case the treated water can be either discharged into the public drainage system or recycled for further use. The treated water can be reused of as drilling fluid, vehicular washing bays, recharge of wells, toilets, cube curing, ponding tests. This saves a lot of cost for water and protects the environment.

GNWTU-50B Wastewater Treatment Unit is a special designed system for oil water and solids separation system. Maximum discharge rate of GNWTU-50B Wastewater Treatment Unit can up to 50m3/h. GNWTU-50B Wastewater Treatment Unit is designed for industry waste water with suspended solids and free oil.

The chemically enhanced separation reduces the suspended solids content below 50 mg/liter and free oil to be below 10 mg/liter.

In this case the treated water can be either discharged into the public drainage system or recycled for further use. The treated water can be reused as drilling fluid, vehicular washing bays, recharge of wells, toilets, cube curing, ponding tests or industrial applications.

This saves a lot of cost for water and protect the environment.

GN Solids Control is a professional manufacturer for liquid and solids separation. In order to rich the company’s product lines, GN Solids Control developed a separation brand: GN Separation. GN Separation (www.gnsepararation) is a separate brand developed by GN Solids Control.

GN Solids Control major business is oil and gas drilling mud separation and waste management, non-oil field drilling fluids cleaning and recycling, replacement shaker screen manufacturing, like solids control shale shaker, high G drying shale shaker, desander mud cleaner, desilter mud cleaner, degasser, decanter centrifuge, vertical cuttings dryer, centrifugal pump, jet mud mixing system, mud agitator, etc…

GN Separation is focusing on making more industrial separation equipment, like various sizes industry separation decanter centrifuge, disc centrifuge, 3-phase separation centrifuge, screw conveyor, etc…

This week, GN Solids Control and GN Separation will exhibit at IE Expo China 2020 in Shanghai. IE Expo China is exhibited in Shanghai Every July. It is the largest professional exhibition focusing on environment protection and solution:

http://www.ie-expo.cn/Overview/profileGN Solids Control and GN Separation will take the typical waste management equipment for showing to the clients. Unlike other equipment supply, they can only make some of the separation equipment, some one can only make shale shakers, some one can only make centrifuges, some one can only make chemical dosing system. GN Solids Control makes the full line separation equipment, and GN Solids Control is capable to combine the system to be a full function system. Below is the major production for the exhibition:

1) Oily sludge separation system.
It is a 1-skid modular unit C/W shale shaker separation, waste management high speed decanter centrifuge for liquid and soil separation, chemical dosing system, disc. Centrifuge for soil water and oil 3-phase separation. Transfer pumps, level meters, control panel, storage tanks, pipelines and other necessary accessories are included in the system in order to offer turn key solution to clients.

2) Slurry separation decanter centrifuge. GN Solids Control and GN Separation is capacity to make different bowl sizes centrifuges.

3) Sludge and solids transfer vacuum pump for long distance suction and discharge.

 

 

GN Solids Control makes different sizes mobile Dewatering unit. It is full package dewatering decanter centrifuge unit, which is complete with its own mixing, dosing and monitoring system.

The Dewatering Unit can be containerized, self-contained with all required equipment and suitable for offshore and onshore rigs. The objective of Dewatering Unit shall be to reduce liquid waste volume in such locations.

The Dewatering Unit can provide chemically and /or mechanically enhanced treatment of wastewater based drilling fluids using flocculation and coagulation methods of separating solids up to colloidal size for disposal and recycling the fluid for preparing new drilling fluid volume.

The Dewatering unit shall have fluid processing capacity such that it is able to effectively and efficiently process waste 10 ppg waste water based drilling fluid containing minimum 10% (v/v) solid particles of particle sizes ranging from 200 microns to <1 micron. The mud handle capacity depends on the decanter centrifuge bowl size.

The waste drilling fluids will be bentonite based fluid or polymer based fluid containing all chemicals normally used in drilling fluids, including but not limited to, barite, bentonite, calcium carbonate, marble, xanthan gum polymer, drilling starch, modified starch, polyanionic cellulose, acrylamide polymers, polyamine, latex polymers, sulphonated asphalt, ester based lubricants, phosphate based lubricants, graphite, cellulose fibers, sodium chloride, sodium bromide, potassiumchloride, calcium chloride, calcium bromide, sodium hydroxide, sodium carbonate, sodium bicarbonate, magnesium oxide, citric acid, defoamers, zinc carbonate, sodium sulphite, ammonium bisulphite, amine corrosion inhibitors, biocides, lime, etc. each in various concentrations as required by COMPANY’s drilling program.

The waste drilling fluid will also have formation-drilled solids predominantly from clay, shale, limestone and dolomite formations, formation oil traces, scale, etc…

The Dewatering unit includes all necessary pipes, hoses, tanks, vessels, valves, connectors, fittings, adapters, sampling points, flushing system, cooling system, electrical system, cables, protectors, control system and safety system (level, pressure, temperature, torque, emergency stop, system protection, etc.), spares, etc. The electrical system can be non-explosion proof for safety ares. It can also be Zone 1 which is suitable and safe for drilling rig’s zonal requirements.

The decantering decanter canl be fully operational on a continuous basis. The ambient temperature can up to + 55° C

GN Solids Control makes different sizes mud recycling and mud mixing system for HDD rigs, water well drilling rigs, etc… The popular size includes but not limited to 150GPM, 200GPM, 350GPM, 500GPM, 600GPM, 750GPM, 1000GPM, etc…

GN Solids Control makes different sizes and customized design mud recycling and mud mixing system to suit for clients request.

For example, a client contact GN to inquire a customized water well drilling mud cycling system for 500GPM ~ 1000GPM. The client want a customized mud recycling system equipped with 2 shale shakers, 2 desander mud cleaners, 1 desilter mud cleaner, 1 middle speed decanter centrifuge and the system should be complied with a mixing hopper and mixing pump unit.

The client wants both shale shakers and both desander mud cleaners should have the possibilty to use only one of them if client drill smaller borehole and uses smaller mud pump. GN Solids Control will equip valves at shale shaker distribution pipelines and desander inlet pipes to control the feeding. Clients can choose to use both or either.

2 shale shakers, 2 desanders, 1 desilter and centrifuge feed pump are located on #1 tank.
#1 mud tank will be divided into 3 compartments:
1.1 Both shale shakers feed the first tank.
1.2 Both desander mud cleaners feed the second tank.
1.3 Desilter mud cleaner will feed third tank. It is clean mud tank, Centrifuge feed pump sucks from desilter tank.

Decanter centrifuge, mixing hopper and mixing pump are located on the #2 mud tank.
#2 mud tank (for clean mud) will be divided in to 3 compartments:
2.1 decanter centrifuge tank, which suck mud from 1.3 desilter tank and feed the tank under it.
2.2 clean mud storage tank
2.3 mixing tank with hopper and mixing pump

Mud Agitators and feeding and transfer pumps will be located per needed and per payout.
Third pass to forth via liquid level height.