The ViST screen shale shaker is a vacuum screen shale shaker utilizing vacuum power. GN Solids Control specially designed it to treat drilling mud in oil and gas drilling. It is work together to recycle the drilling fluids and reduce the drilling waste.

GN Solids Control started to developing the Vacuum Screen Technology since 2017 and owned many pending patent design on it. With the feedback from different jobsites, GN Solids Control keeps updrading its design to make it mode it more stable, less maitenance, and more user friendly. Through the years’ running, GN Solids Control Vacuum Screen Technology proved to be very efficient for recycling drilling fluids.

Based on GN Solids Control standard shale shaker, there is a catch pan installed under the discharge side of the shaker deck. There is a suction pipe with a rubber hose connected to the bottom of the catch pan for collecting the recycled drilling mud. As the sucktion pipe and rubber hose to the catch pan is short in length, GN Solids Control offers extension suction pipe to connecting the shale shaker to the vacuum unit. After that, there are discharge hose from vacuum unit to mud tanks.

And GN Solids Control screen vacuum unit is driven by air, the will be air hose from air compressor or other air suppliers, and feed air for the vacuum screen unit. The compressed air from air compressor or the rig air supply is required to create suction on the last screen surface, pulling additional fluid off the cuttings. It can reduce the liquid on the cuttings by 30-50%.

There must be a set of catch pan with its suction pipe, suction rubber hose and extension rubber hose for connecting to the vacuum unit. If the vacuum screen unit is connecting to 2 shakers or 3 shakers, there must be 2 packages or 3 packages of catch pan with its hoses. One vacuum screen unit only need a rubber hose with its extend discharge hose to mud tanks. And with an air hose to the air compressor or to the rig air supplier.

GN Solids Control finished a ViST vacuum shale shaker package for a drilling company in China. It is a triple shale shaker vacuum screen package, there are 3 linear motion shale shakers with the vacuum driven unit.
The features and advantages of GN Solids Control screen vacuum unit:

1) The 3 linear motion shale shakers with its vacuum unit are allocated on the same skids. It is for fast installation and easy for shipment and movement.

2) With regarding GN vacuum screen unit, the clients can choose to use a vacuum unit to drive 1 shale shaker, 2 shale shakers, and up to 3 shaler  shaker; Or they can choose to use 1 vacuum unit installed together with the shaker and driven a shaker.

3) The model of the linear motion shale shaker is GNZS594J. It is the latest version with advanced design specially for oil field drilling mud separation.

4) And plus, there are Splash shields on the shaker deck. It can prevent the gas, splashed mud, or heart sent out from shale shaker during drilling activities.

Solids Control shale shaker is the 1rst stage separation equipment in drilling mud system. Desander is the 2nd stage solids control equipment. The desilter is the 3rd solids control equipment. The decanter centrifuge is took as the 4th stage solids control equipment. Besides shale shaker is the necessary and pre-separation equipment which is a much in all mud system, clients can choose other solids control equipment according to the jobsite situation and the job site demands.

GN Solids Control is capable to make full package drilling mud processing equipment. Besides offering different models solids control equipment, GN Solids Control is also make customized full package mud system to suit for clients request. GN Solids Control can offer separation equipment and customzied system for oil and gas drilling, as well as non-oil drilling, like horizontal directional drilling, piling, micro tunneling, pipe jacking, etc…

China is the world’s largest oil and gas importer, also the second largest oil consumer and third largest gas consumer in the world. CIPPE is the largest oil and gas exhibition in China. It is an annual event. As the affect of the COVID policy, CIPPE was canceled in the past 2 years. It is reopen now.

The 23rd China International Petroleum & Petrochemical Technology and Equipment Exhibition (2023 CIPPE) will be held in Beijing China at end of May . Welcome visitors from worldwide.

The exhibition space of CIPPE is around 100,000 sqm, including 18 international pavilions. 1,800 exhibitors and over 123,000 professional visitors from 65 countries and regions will come and joint the big event.

Below are details of the exhibition:
Time of CIPPE: May 31rst to June 2nd, 2023
Venue of 2023 Beijing CIPPE: New China International Exhibition Center,Beijing
Booth NO. of GN Solids Control: E2168

As the major solids control brand from China, GN Solids Control will get back with latest design solids control and waste management equipment showing on the booth:

1. Shaker Screen vacuum unit
2. Decanter centrifuge in various sizes
3. Drilling waste Vertical cuttings dryer. GN Solids Control advanced design vertical cuttings dryer is equipped with
4. Solids and sludge vacuum pump for long distance suction and discharge
5. Screw conveyor for drilling cuttings collection and transfer. GN Solids Control make screw conveyor augers vary from 10 inch to 18 inch, with transfer length from 12 ft, 24 ft to 36 ft and 48 ft.
6. Replacement shaker screen for various shaker models. GN makes high quality composite frame pretension screens.

GN Solids Control engineering team and sales team will come for the exhibition, for offering professional supporting to visitors.

And plus, GN Solids Control have 2 factories nearby the exhibition center. GN Solids Control will provide shuttle bus between the exhibition center and GN Solids Control plants. If clients and visitors have interest to check and see more about GN Solids Control, they can come and check.

Solids Control shale shaker is the 1rst stage separation equipment in drilling mud system. GN Solids Control just finished 2 sets of triple shale shaker unit for a drilling company in China.

The features of GN Solids Control triple shale shaker unit:


1. There are 3 shale shakers are mounted on a general skid. It is easy and fast for movement and shipment. And clients are easier to install it at drilling mud system. They only need to move and install the triple shaker one time, but not 3 shakers for 3 times.

2. The 3 shale shaker are connected by pipelines for feeding and discharge. And there are valves on the feeding and discharge pipelines. By open and close the valves, the 3 shale shakers can work together as a full function unit, or work separately based on the job site situation.

3. Unlike other suppliers’ shale shaker, GN Solids Control shale shaker can be equipped with a separate vacuum screen unit. One GN Solids Control brand vacuum unit can be connected to 1 or 3 shakers.

The shale shaker can also be used together with hydro cyclone unit to work as desander or desilter mud cleaner.
10 inch and 12 inch cones are commonly used to separate the particle size of drilling fluid from 44 to 74 μm solid particles. The combination of hydrocyclones below 6 inch is called desilter, which is the third phase solid control equipment in drilling operations. 5 inch and 4 inch cones are commonly used to separate the particle size of drilling fluid from 15 to 44 μm solid particles.

According to the size of the handling capacity required, the customer can select several groups of hydrocyclones to form a desander or desilter.

GN Solids Control desander and desilter mud cleaner is widely used for desanding and separation of oil drilling and horizontal directional drilling.

GN Solids Control make various sizes and standard shale shakers, High G drying shakers, as well as screening separators to suit for various type of industries and applications.

Different market have different features on the equipment selections. Recently, 3 sets of double deck shale shaker and a set of mud cleaner are ready for shipment. They will be shipped to an European client.
The double deck shale shaker for oil and gas drilling mud system is a 6-panel big area model. The upper deck is with 3 pieces screen, screen area is 2.0 sq meters. The bottom deck is with 3 pieces bigger size screens, screen area is 2.6 sq meters. The total screening area of the 6-panel double deck shale shaker can up to 4.6 sq meters.

Compared with normal type single deck shale shaker, the function and advantage of double deck shale shaker is that, the upper deck utilize coarse size shaker screens for pre-separation to remove the big particles, it can greatly improve the bottom deck screening performance and capacity. And plus, it can extend and improve the lifetime of replacement screens. And then the bottom deck utilize necessary fine API shaker screens based on the mud condition. As the upper deck already removed all the big particles, the fine screens on the bottom deck can service a longer time.

The screens of the double deck shale shaker are equipped with mechanical screen fast pressing device, it can easily and quickly remove the screens. It is durable and reliable.

With the advantage of big screening area, and high G linear motion force, GN Solids Control is widely used for big oil and gas drilling rigs, especially wide used on offshore rigs and platforms.

Besides the 6-panel shale shaker, GN Solids Control also have a 5-panel double deck shale shaker, which is mostly used together with desander cone assemble and / or desilter cone assembly to work as a combo-type shale shaker separator.

GN Solids Control can design and make various type of mud cleaning system to suit for various applications.

Drilling mud solids control system for Oil and gas drilling is the multi-tank mud system, like Silting mud tank ( Shaker Tanks), Active Mud Tank, Suction Mud Tank, Mixing Mud Tank, Storage Mud Tank. GN Solids Control can offer complete turn key solution. Drilling mud solids control system is also called solids control system, or mud circulation system for the oil gas drilling rigs. GN Solids Control makes oil drilling mud system available for different oil drilling rig sizes from small rig 250HP to deep drilling rigs up to 3000 HP with various capacity.

GN Solids Control can design and manufacture hydrovac slurry processing system, which is also called as Slurry Dewatering System, in some countries, like in U.S.A, Canada, Australia, New Zealand, it can also called as hydrovac slurry waste treatment or waste slurry management system.

GN Solids Control can design and manufacture Mud Recycling System for water well drilling, Horizontal Directional Drilling (HDD) and CBM drilling rig.

GN Solids Control is a top manufacturer of Horizontal Directional Drilling (HDD) Mud Equipment / HDD Mud Recycling System. GN Solids Control drilling mud recycling system has been applied in many countries for HDD and CBM drilling operation. Especially popular in Singapore, Indonesia, India etc. GN Solids Control can offer Self-Contained Mud Recycling System with model as below: GNMS-200B for 200GPM capacity, GNMS-400B for 400GPM capacity, GNMS-600B for 600GPM capacity, GNMS-800B for 800GPM capacity.

GN Solids Control can design and manufacture efficient TBM slurry separation plant. It is the basis for the successful use of slurry-supported tunnel boring machines(TBM). GN Solids Control Slurry separation plant is popular for project of AVN Machines, Mix shields  or Shaft Sinking Machines . GN Solids Control use double deck shale shakers, desander desilter separators, as well as decanter centrifuges to separate and remove the excavated solids from the bentonite suspension.

GN Solids Control finished a package of Oily soil leaching solid-liquid separation system. The separation package is sold to customer in the Middle East for the contaminated soil treatment. The system is designed to treat the oily sludge and oily soil.

Below are the major separation modules included in the contaminated Soil Washing and Separation system:

Module 1: The vacuum transfer unit. There is a solids and sludge vacuum pump used for transferring the waste material from waste pit. The vacuum pump is a 100% air driven device, there is no electrical components. Hence, there is an air compressor to feed air for the vacuum pump. And there is an air tank equipped after the air compressor and before feeding air for vacuum pump.

Module 2: The pre-mixing and washing unit. There is a tank with heating pipes. The vacuum pump transfer oily sludge or oily soil into the tank. Water will be feed into the tank to dilute the sludge and oily soil. After this stage, there will be oil, water and sand mixture.

As the viscosity and density of oil sludge is normally high. It is very difficult or nearly impossible for separation. There is a heating system used for together with the heating pipes for heating the oily sludge. The most suitable temperature is 70℃ ~ 80℃, which is the most suitable temperature to keep the activity of chemicals.

Module 3: Coarse shake separation unit. The coarse shale shaker is to pre-separate the big particles and sands from the oily sludge. As the solids contents are very high. The big opening PU screens are used in the shaker for longer service time.

Module 4: The decanter centrifuge separation unit. It is used for liquid and solids separation.

Module 5: The 3-phase separation unit for oil, water and solids separation. 3-phase centrifuge are used in the unit.

Module 6: Chemical dosing module. Chemicals are used nearly in all process. There is a skid mounted chemical dosing unit in the system to supply chemicals.

If the oil sludge discharged from oil sludge treatment is directly discharged without treatment, it will not only occupy a large amount of land, but also contain a large amount of heavy metals and bacteria, which will produce foul odors and cause serious pollution of water, soil and atmosphere.

At present, there are many treatment technologies for oily sludge, in accordance with the requirements of reduction, harmlessness, resource utilization and comprehensive utilization.

The main treatment methods of oily sludge waste in oilfields are as follows:

1. Incinerate in a high temperature incinerator. Oilfields often use thermal desorption unit (TDU). The sludge is incinerated to recover clean oil and water, and the oil content in the solid waste is reduced to less than 0.5%. The products that meet the standard will be landfilled or fired bricks. This treatment method is costly and causes coking, which affects the normal operation of the incinerator. And energy cannot be recovered efficiently. If the oily sludge has a high moisture content, the temperature in the incinerator will decrease after entering the incinerator, and the pollutants after incineration will not be able to reach the standard stably, which will lead to air pollution and dust pollution.

2. Treat oily sludge by drying ordinary sludge. Because of the particularity of oily sludge, common processes and machines are not suitable for the treatment of oily sludge, which leads to agglomeration and coking of oily sludge in the equipment, making the equipment scrapped. In addition, the oily sludge treated by the ordinary sludge drying process cannot meet the standard. For example, equipment such as rotary kiln sludge dryers will form coking inside the equipment in a short period of time during the process of processing oily sludge, causing the equipment to fail to operate normally.

3. GN Solids Control Use chemical hot washing to treat and recycle oily sludge. As far as China’s current situation is concerned, chemical hot washing is mostly used for oil recovery from oil sludge, with the purpose of recovering oil. Therefore, the oil sludge after hot washing is a non-standard product and still needs to be treated. Therefore, the hot washing method can only be used as an auxiliary method for reduction, and cannot be used as a direct oil sludge treatment method.

GN Solids Control finished the final inspection and assembly of 5 packages of solids control equipment. They will be equipped for 5 sets new 2000 HP deep oil drilling rigs. The solids control equipment will be shipped to the client soon to commission together with their new drilling rigs.

All the equipment are customized for an old client from Nigeria. Since the first time they bought from GN Solids Control in 2012, till now, they deal with GN Solids Control over 10 years. And up to now, the all their deep drilling rigs are all running with GN Solids Control equipment for drilling mud and drilling cuttings treatment. For each 2000HP deep drilling rig, the client uses a fixed speed decanter and a VFD centrifuge for drilling mud treatment. And a vertical cuttings dryer for drilling cuttings treatment, and other accessories equipment.

The 5 packages solids control equipment include following items:

1) 5 sets fixed speed decanter centrifuge. Each fixed speed centrifuge will come together with another set of pulley and belt. While changing the pulley and belt, clients can run the centrifuge at another fixed speed. Normally GN Solids Control offer 3200 RPM and 2700RPM pulley and belt for high speed decanter centrifuge. Clients can contact GN Solids Control in case they need other speeds.

2) 5 sets VFD centrifuge. The VFD panel are equipped with Air conditioner cooling system for high ambient areas. And there are 3 VFD control inside the VFD control panel for variable speed control on main drive motor, back drive motor, as well as pump motor.

3) 5 sets vertical cuttings dryer for oil base mud treatment.

4) 40 sets screw conveyors. It is 10 inch diameter augers to fit for drilling mud solids control equipment and drilling waste management equipment.

5) Various screw pump to feed for decanter centrifuges and as flush pump for vertical cuttings dryers.

6) All above equipment will come together with relative control panels.

The transmission structure of drilling mud agitator is mainly composed of driven motor, reducer gearbox, connecting device and mixing shaft assembly. There are not many forms of drilling fluid agitators commonly used in drilling fluids solid control systems. Among them, there are worm gear direct transmission and worm gear coupling transmission.

Mud agitator is used at trip tank, pill tank, desilter tank, mud suction tank, mud reserve tank, mud mixing tank. It is also used under the decanter centrifuge to avoid the mud settle down.

Mud agitators are normally used together with mud guns. Normally a mud agitator with a mud gun. The mud gun is used to support the 4 corners of mud tanks. GN Solids Control mud guns have 3 nozzles. Each nozzle]of GN mud gun can cover 120 degree, the 3 nozzles can cover totally 360 degree of the mud gun. The mud agitator is driven by electric motor. While the mud gun is driven by centrifugal pumps which are used for mixing or mud discharge.

 

Some manufacturers have also used worm gear and worm coupling drive. Worm gear drive is widely used in drilling fluid agitator due to its simple structure, large speed ratio and high reliability. Early drilling fluid agitators were almost all directly driven by worm gear. Although the worm gear coupling drive and belt drive are large in size, they have the characteristics of soft motion, which is good for protecting the overload of the motor. Therefore, some manufacturers will choose them.

The most commonly used agitator transmission mode is the gearbox reducer. The advantages of gear reducer agitator are high transmission efficiency and less maintenance. The disadvantage is large volume. Gear driven agitators are also divided into direct drive and coupling drive. The direct drive mud agitator is the most commonly used agitator drive form at present because of its simple structure and convenient maintenance.