Apr 07


GN solids control focuses on the design, development and manufacturing of drilling mud solids control equipment and drilling waste disposal equipment. GN solid control is the leading brand of drilling mud solids control equipment at home and abroad. The first to establish a branch in the United States and Russia. The main manufacturing product modules are: solid control equipment and accessories manufacturing modules, drilling waste treatment equipment modules, complete mud circulation system modules, and pump delivery equipment modules.

The technical parameters and indicators for complete sets of equipment for water-based mud waste while drilling are as follows:

  1. According to the amount of drilling waste generated during the drilling process, special construction process conditions such as running slurry and cementing are taken into account. Guanneng Waste Treatment Equipment has a designed processing capacity of 20 to 60 cubic meters per hour (including rock solidification, waste mud and waste water treatment) and 24-hour operation.


  1. After the drilling wastewater and solid waste are treated by the device, after the drilling water is purified and treated, the water quality index approaches the first-grade standard of Integrated Wastewater Discharge Standard. The main technical indicators of exudate of solidified mud cakes after cutting debris and waste mud, wastewater preparation and separation are close to the first level standard of Integrated Wastewater Discharge Standard. Solid waste complies with the technical requirements for Class II solid wastes in the “Standard for Pollution Control in General Industrial Waste Storage and Disposal Sites.”


Crown energy cuttings curing system: automatic continuous curing can be achieved. Processing capacity 15 cubic meters / hour.

Crown energy cuttings curing system

Feature 1: It can be automatically continued, the processing capacity is adjustable, and the amount of added materials can be adjusted. Save labor costs and have high efficiency.


Features II: GN armored curing system, when transported, after a simple disassembly, the solidified mud agitator part and drill cuttings storage funnel part can be transported together into a 40-foot high cabinet to meet international shipping requirements. And can meet the inland transportation size requirements of various countries.


Features 3: Curing mixer inlet, equipped with two 1.5-inch inlet, you can add water from this port, or add acid and alkali liquid curing material.

More detail,please contact GN solids control

written by GN solids Control

Mar 31

At present, more and more customers have noticed the considerable prospects of domestic oil sands disposal projects, and drill cuttings dryers are one of the most common separation methods among oil sands separation methods. However, what is the economic benefit of the use of rock chip dryers in the recovery of waste oil-based drilling fluids?

Let us make a simple analysis and evaluation:

  1. Generally, the oil content of drill cuttings with oil-based drilling fluid is 20%, and the oil content of drill cuttings after spinning treatment is about 10%. Dryer processing capacity of about 10t / h, 25 tons of debris can be recovered 1 tons of impurities in oil (cuttings density of 2.5t / m3). 0.4 tons of oil after purification. Each ton of oil can make a profit of 15,000 yuan (CNY), 0.4tx1.5 yuan/t=0.6 yuan (CNY).
  2. There are 7 persons required to build the factory in a centralized manner. The annual cost of personnel is about 1 million (CNY) (the estimated annual income of employees), and the cost per person per day is about 397 yuan. 7 people cost 2778 yuan per day (CNY).

3, equipment depreciation fee to pay 250 ÷ 3 ÷ 12 ÷ 30 ≈ 2315 yuan / day (calculated as 2.5 million yuan total equipment manufacturing). The recovery of 1 ton of oil products requires the payment of 2315 ÷ 24 × 3 = 289 yuan. (The solids control equipment will be depreciated in 3 years and calculated in 360 days per year)

  1. Site construction and lease fee 100÷3÷12÷30=926yuan (CNY)/day. (site construction and rental fees are calculated based on 1 million yuan (CNY))

5、Equipment electricity fee: According to the dryer, processing 10 tons of oil-based drill cuttings per hour, and producing 1 ton of oil requires 2.5 hours of electricity and the cost is 40×2×2.5×1≈200 yuan.

  1. Vehicle use fee: RMB 1200 for each 30 tons of vehicles, RMB 400 for each ton, and RMB 25×400 for each ton of oil produced.

7, diesel, water costs 50 yuan (CNY)

8, equipment maintenance costs about 50 yuan (CNY)

9, other costs of about 200 yuan (CNY), (environmental protection, fire, out, foreign employment, etc.).

6000-289-200-2778-1000-50-50-200-926=507 yuan (CNY)

Two dryers can produce 6.4 tons of oil products every day for 8 hours. The income is RMB 38,400 and the profit is RMB 3224.8 (CNY).


This is suitable equipment to save cost for client,with more detail,please contact GN solids control

written by GN solids Control

Mar 24

GN Solid Controls has devoted many years to the R&D and production of mud solids control equipment and waste mud processing equipment. At present, the product line covers more than 40 types, covering the fields of oil and gas drilling, construction mud purification, oil sludge treatment, and river clearing. In the field of silt treatment, the solid-liquid waste environmental protection field, and the six major types of professional equipment in the field of medium transportation are processed and manufactured.

The following describes a widely used conveying conveyor,screw conveyor mechanical equipment, screw conveyor application is very extensive, mainly the use of rotating spiral blades will be pushed into the material to be transported to the other end of the shell discharge. Spiral conveyors are widely used in food, pharmaceutical, chemical, papermaking, environmental protection, metallurgy, building materials, petroleum, electric power and other industries. There are many types of screw conveyors to meet the requirements of different working conditions and different materials.


The difference between GN solid-contained screw conveyors and ordinary conveyor manufacturers is that GN solid control’s production, processing and manufacturing standards meet the requirements of high-risk operation sites such as petroleum, mining, marine, and chemical engineering. The screw conveyors produced meet the requirements of the American Petroleum Institute. API manufacturing standards, meet EU export CE certification standards, and meet Australian national security and environmental standards. GN solid-controlled screw conveyors are characterized by high wear resistance, strong acid and alkali resistance, oil resistance, and easy maintenance.


Structural features:

1, simple structure, cross-sectional size, small size, easy to arrange.

2, easy to load or unload at different locations, that is, you can set a number of feeding port or discharge port.

3, operation safety, easy maintenance.

4, have a good seal, keep the environment clean.

5, the delivery of easily broken materials, the higher the broken rate.

6, when the material is conveyed to overcome the friction of the material, so the spiral blade wear.

7, with high wear resistance, strong acid and alkali resistance, oil resistance and other characteristics, can adapt to high-risk, rough workplace.

More question,please contact GN solids control

written by GN solids Control

Mar 15

It is well known that oil-based mud is often used for drilling in shale gas drilling projects. The properties of the oil-based mud also determine that the oil-based drill cuttings are often much more difficult to handle than water-based cuttings and the cost is much higher. At this time, customers often choose to focus on oil-based drill cuttings.

Here we briefly introduce the application of the GN cuttings dryer to oil-based drill cuttings.


In the first step, the drill cuttings processed by solid-phase control equipment such as drilling fluid vibrating screens, de-sanders, and drilling fluid desilters are discharged into the cuttings box for unified collection during the drilling process, and the rock is lifted by a lift-swiveling forklift. Chip boxes loaded into the transport truck.


In the second step, according to the preset commuting route, the trucks will use the forklift trucks placed in trucks and transport them to the oil-based drill cuttings drying treatment plant.


In the third step, the oil-based drill cuttings are lifted and lifted by a rotary forklift to raise the cuttings box to the elevated funnel to dump the cuttings. The cuttings enter the elevated funnel and flow to the screw conveyor track, which can be adjusted by spirals. The conveyor controls the flow of cuttings and sends the cuttings evenly into the drill cuttings dryer. After the first treatment, the liquid phase is recovered by the liquid collection tank and stored in a primary treatment liquid collection tank.


In the fourth step, the solid waste is transported to the debris box through the screw conveyor at the bottom of the dryer for subsequent processing. The liquid phase after primary treatment is pumped into the high-speed mud centrifuge for secondary treatment via the screw pump on the collection tank, and the waste discharged from the mud outlet is collected in the cuttings box for treatment, and the liquid discharged from the discharge pipe of the centrifuge is discharged. The phase is a clean, recyclable white oil that is stored in a secondary treatment liquid collection tank.


Finally, the solid phases discharged from the spin dryer and the centrifuge are all stored in special debris boxes. After being collectively collected, they are loaded into trucks by lifting and rotating forklift trucks and transported by trucks to incineration plants, brick factories, cement plants, etc. Waste-producing manufacturers perform the final waste utilization or detoxification treatment.

written by GN solids Control

Mar 10

The test data collected by the barite recovery system produced by our company shows that:

  1. Barite recycling centrifuge: The rotation speed is about 1800RPM, the “G” value is about 700, the low density separation point: 6 ~ 10μm, and the high density separation point: 4 ~ 10μm.


  1. Large-capacity centrifuge: The rotation speed is about 1900-2200 RPM, the “G” value is about 800, and the low-density separation point is 5-7 μm (not in the drilling fluid), which is used to exclude the low-density solid phase;


  1. High-speed centrifuge: The rotation speed is about 2500~3300 RPM, and the “G” value is about 1200~2100. The low-density separation point: 2~5μm is mainly used to remove the low-density content in the un-weighted drilling fluid.

The influence of various parameters of the centrifuge on the operation of the barite recovery system:

  1. Main engine rotation speed V: It is mainly used to control the size of the particle size of the separated particles. The higher the rotation speed, the smaller the particle size can be separated.


  1. Auxiliary machine (drum) speed V2: mainly used to control the pushing speed, the higher the speed, when the host speed is constant, due to the difference in speed [X = (V1-V2) / differential speed ratio] reduced ( V1: differential shaft input shaft speed), pushing material speed is reduced, at the same time, due to the reduction of pushing material speed, small particle size particles have settling time, which makes the proportion of small-size particles discharged out of the solid phase increase;


  1. Liquid supply volume: The amount of liquid supplied by the system determines the speed of the mud cleaning system to treat the drilling fluid, and it also affects the effect of barite recovery: the greater the amount of liquid supplied, the greater the amount of drilling fluid to be treated. The amount of barite that needs to settle during the time increases. When the sedimentation amount exceeds the system discharge amount, a part of the barite does not have enough time to settle, and the liquid phase separated by the centrifuge carries out the centrifuge system, thereby reducing the barite recovery rate. At the same time, as the amount of liquid supplied is increased, more barite is recovered, which may cause system operation failures, in particular, the increase of solid adherence on the screw feeder of the centrifuge, resulting in the balance of the centrifuge drum. Not enough but strong vibration and stuck.


  1. Meniscus: mainly controls the sediment thickness (liquid pool depth) in the drum of the mud centrifuge and the water content of the solids discharged, and affects the particle size: when the meniscus is completely removed (the height is lowest) The grit thickness (liquid pool depth) is the shallowest, the water content of the solids discharged is the lowest, and the content of small-size particles is the least, but at the same time the pushing load is increased. When the height of the meniscus is the highest, the thickness of the grit sand (the depth of the liquid pool) is the deepest, the water content of the solids discharged is the largest, the content of the small-size particles is the highest, and the pushing load is reduced. Therefore, the depth of the liquid pool must be properly adjusted when the treated drilling fluid contains a large amount of liquid and has a high viscosity.

More question,please contact GN solids control

written by GN solids Control

Feb 28

GN GNLW series of mud centrifuges, also known as horizontal spiral discharge sedimentation centrifuge, mud centrifuge, is aiming at the characteristics of drilling mud, mud slurry recovery system designed for solid-liquid separation dedicated solid control equipment for oil and gas drilling mud , Sludge dewatering, particle size grading, food protein, starch, kaolin, natural gas desulfurization sludge, waste oil purification and other industries. The removal of fine solids, the reduction of solid content in the solid-liquid mixture, the control of drilling mud density, viscosity, ensuring drilling fluid performance and rapid drilling are all important.

Drilling mud centrifuge

Clogging a reason: centrifuge work process, due to the pump flow is too large, or suddenly increased suction density of the mud, causing the auxiliary motor trip, resulting in centrifuge blockage.


Blockage two reasons: Centrifuge shutdown, did not follow the rules carefully, there is no flushing, or flushing is not clean, resulting in centrifuge blockage.


If you start the auxiliary motor, if the differential, the drum followed by auxiliary motor rotation, and faster and faster, indicating that the material between the drum and the auger rinse is not complete or even blocked, can’t start the main motor, in this way Centrifuge to overcome blockage; material should be cleaned between drum and auger.


The specific method is: remove the shield, stuck with a pipe clamp Auxiliary motor coupling, to both positive and negative force, not to be brute force to prevent the differential ruined. Can also be injected into the slurry into the pipe, for 12 hours soaking, to help turn the motor coupling.


Open the collection box to clean up:


Per three days, the collection box should be opened for inspection and cleaning. The wear-resistant sleeve, scraper and end scraper on the slag outlet of the mainframe are both fragile and should be used with special care.

More question about decanter centrifuge or other solids control equipment,please contact us

written by GN solids Control

Feb 25

GN solids control Skid-mounted waste treatment system is based on customer needs, in accordance with customer requirements for the treatment of mud after the design, manufacture for the recycling of waste sludge skid handling system. The main core equipment of this system is GNZS594E-HB high-frequency vibrating screen for coarse particle screening and GNLW363C-VFD high-speed decanter centrifuge (with 20-foot flocculation dosing system to improve the processing effect of centrifuge) and system Feed screw pump, skid mounted tank, mixer and so on. According to the specific requirements of customers on the discharge, you can adjust the dosage of different flocculation agents to ensure that the expected delivery of the material to achieve the desired effect.

System components and parameters:

The system has two warehouses: one is a pre-mixed screening warehouse, one is a centrifuge liquid collection warehouse; the whole system can be processed by a centrifuge to remove most of the solid particles above 2μm.
Premix screening silos equipped with a stirrer and heating lines to ensure adequate mixing feed and improve the degree of demulsification mixing agent.
System design mud capacity: 30 m3 / h, to adapt to the environment: -15 ° ~ 50 °
Adapt to mud viscosity: ≤ 45 S.
Adapt to climatic conditions: rain, snow, foggy weather.
Continuous operation at rated power.
Working height range: Normal working at altitude ≤2500 m, working efficiency at ≥2500 m above sea level.
All the equipment of the system is a mature technology and new product, and the technical performance meets the relevant requirements of SY / T5612-2007 Design Specification for Solid Phase Control Equipment for Oil Drilling Fluids.
Machine design is reasonable, compact structure, flexible combination, advanced technology, easy operation and maintenance, performance, safety and reliability.
System is easy to dispatch, transfer and transport, to meet the domestic and foreign road transport regulations.

More question about this system,please contact GN solids control

written by GN solids Control

Feb 09

Solidification unit is a kind of equipment used for final treatment of drilling cuttings.some time it was called stabilization unit,With the strict environmental protection regulations issued, most rig site has to consider further treat of the drilling cuttings to reduce the waste discharge and recover drilling fluids as much as possible. To make work environment friendly,The further treated drilling cuttings, due to containing of chemicals, cannot be discharged directly.


Normally,the solidifify will need Cement and lime,some special sludge will add chemical like PAM/blinding material/resin,to keep better solid work,and control harmful metal of drill cutting

Based on different sludge’s solidify time with chemical,GN add VFD adjustable motor for sludge/lime/absorber feeding conveyor ,for easier control solidification unit working progress

Treated material will become solid with in10~15 minutes after discharged from unit,the time can be control follow different sludge and chemical


Most important point for using solidification is clean it before push stop,the solids part will stick at internal surface of mixing tank,it will damage the screw and effect further running


Some area moisture degree is too high,we advice make sure lime tank dry enough when running,or it may meet stick things too and effect feeding


GN choose high quality motor for conveyor for longer system service life,for better arrange waste manage plan

More question,please feel free to contact GN solids control

written by GN solids Control

Feb 04

GN design decanter centrifuge for oil&gas drilling fluid solids control,also can use for water well drilling mud recycling,and we have success experience for HDD drilling,some mining slurry and river water recycling have need of centrifuge

When centrifuge working,the bowl speed will be very high,max speed will be around 3000RPM,if the centrifuge not at stable plant,the whole machine will shake,and tube and motor will be damaged by this speed,and keep balance for screw and main bowl,is very important

GN have protect design to keep centrifuge avoid complete damage for some time,but most time ,bowl speed too high,damage will still happen,even the centrifuge stop,prepare is always better

The electric current will raise when centrifuge not stable,the motor will request more power to keep bowl speed,if centrifuge working at this state for long time,the life of motor and control system will reduce a lot,and power waste will raise,we have met this before,and advice make check list,and do maintenance to save money for future fix cost

Before fluid feeding to centrifuge,we advice try keep the size of solids average enough,this also can help centrifuge running stable,and make better separation work

The user can build plant to fix centrifuge,this is good way to keep centrifuge work stable,and keep solids control work well


Hope every user get good separation by GN centrifuge,more info,please contact GN solids control

written by GN solids Control

Jan 25

GN Vacuum pump is a good transfer way for solids control area

For vacuum pump service life longer, maintenance is the key segment to guarantee the vacuum pump running properly. It should be frequently to check and maintain the vacuum pump according to the instruction book. every vacuum pump package,this is the main measure to reduce the down time of the vacuum pump and keep equipment running properly all the time.

Points for maintenance

Requirement for maintenance staff

Should designate the technician who was trained with the vacuum pump technology to operate, manage and maintain the vacuum pump.

It’s only allowed for the designated and trained staff to operate and maintain the vacuum pump, and operate the equipment properly, strictly according to the operation use and maintenance procedure’s requirement

Purpose of maintenance

Vacuum should be periodically checked, maintained and serviced to guarantee the function and key parts and safeguard procedure of the vacuum pump under normal condition. And guarantee the vacuum pump working under good conditions and the guarantee the mechanical property and technical characteristic of the vacuum pump. Prolong the equipment longevity and lower the usage cost.

Maintenance method

A large scale maintenance should be done every 3 months, inspect the tank body, the usage of the combination of feed and suction pipe and discharge pipe, if found they are severely damaged,should exchange immediately.

Inspect if the exterior fasteners of the equipment are fastened properly once a month (600 hours)

Inspect the brake valve of air cylinder once a month(600 hours), if the movement is

flexible, if there is air leaking or water leaking, if there is block or leakage, should fix immediately.

Welcome to GN website to check more detail

written by GN solids Control