Is the most common type of shaker screen, consisting of one to three layers of screen cloth. The cloth is frequently bonded to a thin perforated metal grid plate or a plastic grid. The next figure shows the construction of a typical hookstrip shaker screen.
The shaker screen panel is tensioned on the shaker deck by an interlocked hookstrip and drawbar arrangement located on both sides of the shaker. Three or more tensioning bolts are used to pull each drawbar down and towards the side of the basket. This seats the screen on the shaker deck and distributes even tension along the hookstrip. Pyramid screens
Have been introduced to the oil industry in recent year. This wave design increases the area of the screen by 40% over the flat shaker screens. This increase in conductance is only relevant if the screen is completely submerged in drilling fluid.
Frame panel shaker screen
occurs when for repelcement of requirest from jobsit. Like GNZS703 shaker screen from GN Solids Control. The shaker screen mounted with wedge to the shaker deck. It is easy for fast repelcement.
Screw conveyor is the main transfer equipment used in waste management field.It also called U-shape screw conveyor.
For a continously transfer of materials, it is improtant to maintenance it in suitable way.
Drilling waste screw conveyor
Below are some suggestion on drilling waste screw conveyor maintenance:
1) Befor start the waste tranfer screw conveyor, add specified gear lubricant.
2) Reducer working ambiant temperature: -40 ~ 60 ℃, if the ambient temperature too high, it is necessary to take measures to cooling it.
3) Reducer should be compatible with magnetic starter, allowing the torque range, to protect motor and gear from damage;
4) Reducer suitable for continuous operation, and allow both positive and negative to the operation;
5) If you change the motor, reducer installed position, the need to mirror swap oil, oil plugs, ventilation cap;
6) Lubricating oil must be changed regularly;
Screw conveyor transfer
6.1) From the first time use, the geared motor should change lubrication oil after 300 hours running.
6.2) In normal circumstances, the geared motor lubricating oil should be replaced every 5000 hours running;
6.3) Per lubricating oil standard, check quality of the oil regularly;
6.4)Use the same brand lubricating oil for screw conveyor geared motor. Never mix different brands;
6.5) If there is abnormal noise or phenomena from the screw conveyor transfer, should stop in time, identify the reasons for troubleshooting, to continue to run;
6.6) If there is any quality problem of geared motor, contact with manufacturer or vendor, not dismantle.
7) Check auger and liner wear periodcally, if liner thickness ≦ 2mm, replaced it.
8) Professional operators on a regular basis (2 hours) inspection, focusing on observation of spiral run the sound, the sound occurs when abnormal operation must be stopped immediately, identify the cause and treatment before reuse.
9) Gearbox oil level checked once a week, less than the sight glass should be in place to replenish the same grade gear oil to prevent gear damage caused by lack of oil.
10) Occurred during use of the cover fastening screws loose in time, off the screws should be promptly filled, otherwise it will create a larger spiral with vibration and noise associated with, the use of security will decline.
11) Regular inspection fastened securely supporting frames fasteners degree, is strictly prohibited screw loose or peeling!
12) Important: Open the tank cover must be checked when the power is disconnected!
Shear pump is used to effectively mix and hydrate material added into drilling fluid. With large capacity, high lift, and long reliable service life, the shear pump can speed up dilution and hydration of polymers to have property mud.
See from GN shear pump performance chart, the maximal pressure of shear pump is 47m (H2O), namely 0.47MPa. It means once the output pipe of shear pump has been blocked, the maximal pressure of output pipe is 0.47Mpa, and the maximal pressure of pump case is 0.47Mpa.
1) Figure support of the case of shear pump can endure
Material of the pump case is HT200，height of material is 10~20. Strength σs=145MPa，working strength ［σb］=48.33MPa.
See from above figure, while outlet pipe of shear pump been blocked, the maximal pressure arised from this is 0.47 Mpa. It is greatly less than the working strength of pump casing ［σb］=48.33MPa.
In this regards, it can be concluded that, GNJQB series shear pump is completely safety while output pipe blocked.
2、Figure support of shear pump output pipe pressure
Shear pump output pipe use 20# seamless steel tube. with tube thickness 7~8 mm. Yield strength of the tube is σs=245MPa，working strength ［σb］=81.67MPa.
See from above figure, while outlet pipe of shear pump been blocked, the maximal pressure arised from this is 0.47 Mpa. It is greatly less than the working strength of pump casing ［σb］=81.67MPa.
As a leading manufacturer for drilling mud tank systems in China,we know that Mud tank systems are a critical component of any drilling operation for maximizing solids control efficiency and effectiveness.The GN Drilling Mud Tank System including single mud tank system or multi-tanks system.GN mud tank system comes complete with all the essential solids control equipment Including Shale Shakers,Desander Desilter or Mud Cleaners,Vacuum degassers,Decanter Centrifuges and pumps,agitators,mud guns etc.To make sure it necessary for successful operations,GN Mud Tanks system also including mud tank attachments like handrails,valvles,pipelines,clean gate,lighting,and electric control systems. Additionally, optional solids control configurations are available to suit the needs of specific applications.
mud tank system
GN Mud Tanks System for different industry:
1) Oil Gas Drilling mud tank system
2) HDD(Trenchless Drilling) Mud Tank system
3) CBM (Coal Bed Methan) drilling mud tank systems.
4) Water well drilling mud tank system
5) Mining drilling,geothermal drilling mud tank systems etc. Mud Tank Types for the mud system:
1) Shale Shaker Tank
2) Mud Trip Tank
3) Active Mud Tank
4) Mud Mixing Tank
5) Mud Storage Tank
6) Suction mud tank
From flowline to disposal, GN Solids Control has the solutions to your separation and waste management needs with GN Mud Tanks and Separation Equipment.
Screw conveyor is a transportation equipment widely used in waste management field. Drilling cutting screw conveyor is mainly used to collect drilling cuttings separated from solids control equipments, like shale shaker, desander, desilter, barite recovery centrifuge,etc…Then the drilling cuttings will be fed to high G shaker or vertical cutting dryer.
Swivel screw conveyor
Swivel screw vconveyor
Drilling waste management screw conveyor can be used in level or with an angle. The angle must max. 40°.
While use with angle, in most condition, the angle is fixed. For some situations, users want a more flexible application. In this case, the leading solids control and waste management manufacturer- GN Solids Control design and make a swivel screw conveyor. GN equipped swivel at the underneath end of the screw conveyor and also equipped swivel caster underearth the frame. In this case, the swivel have the function to move at any direction easily.
The swivel screw conveyor with an adaptable height. Furthermore, users can change angle of the screw conveyor both in horizontal and vertical direction .
Parameter of swivel screw conveyor
All kind of screw conveyor can be designed for swivel. GN has 2 auger dimension for choice: 14’’ and 18’’.
For length, GN have 12 feet standard length for each selection. Namely, users have 12 feet, 24 feet, 36 feet, 48 feet for option. For safety consideration, GN max. match 48feet, namely 4 selections for each screw conveyor.
Water based drilling mud as well as oil based drilling mud are the most popular drilling mud for oil gas drilling.As the regulations for the environmental protection are bringing out by the gorvement in many countries, the requirements to the treatment and disposal of the drilling cuttings are increasing.
As a Solids Control & Waste Management equipment manufacturer, GN Solids Control design and manufacture Vertical Drilling Cuttings Dryer, High G Cutting Dryer, and Decanter Centrifuge. To reduce the disposal for water based drilling cuttings, GN normally provide the High G Cuttings Dryer for drying the solids discharged from shale shaker, mud cleaner, or Desander Desilters.
Learn more about our project for Water Based Drilling cutting treatment as following:
1 set GN VFD decanter centrifuge and Hi G dryer used for recovering the drilling fluid from the waste drilling cuttings already started running on the jobsite which the project from Pertanima after commissioning by our technical person.
As per customer’s requirements, the equipments provided list below:
GNLW363VFD decanter centrifuge with tungsten carbide protection for screw propeller. The bowl speed adjustable from 0-3200RPM.
GNZS853 Hi G dryer with designed maximum vibration force to 8.0 G. Large screen area make sure the cuttings more drier for staying longer time on the screen.
Microtunnelling is a nature method of construction using pipe jacking. In many countries and areas, it also defined as a “Trenchless Construction Method”.
Slurry separation system for microtunneling
Microtunnelling project usually takes in urban district. In this case mud system matched for microtunneling request compact and a very small footprint recirculation slurry system with different capacity. This kind of mud system usually called as “slurry separation system”.
Features of slurry separation system
1) Steel Frame Screen with large open microns usually used.
As the solids usually bigger than oil and gas drilling, solids content higher and many bigger size sands / solids. And it is big diameter well with smaller depth, no higher request for mud quality. It is no need to separate very fine. And steel frame have a longer lifetime for microtunneling.
2) Compact system with smaller footprint: all separation equipment combined together, a storage tank and a mixing tank.
Usually, GN only offer separation plant and equipment for mixing part. And recommend users to build storage / mixing tank locally to save cost.
3) Big size hydro cyclones for large capacity. And it is not easy to be blocked.
GN Solids Control as China leading mafnucturer for solids control and waste management, have a famous and good name worldwide. GN products have been exported to over 60 countries worldwide.
One of GN main advantages is complete and customzied solution on rig system. From small oil drilling rig, like 650hp, 750hp, to bigger one, 1000hp, 1500hp, 2000hp, 3000hp, to 5000hp and 7000hp. GN have experience on all of them.
GN 1000hp rig mud system running well in Turthey. This user see GN equipment in oil show and book all GN system on the show, after they visit GN after the show, they give GN an order for a complete 1000hp rig they were working on.
The 1000hp rig mud sysem running very well in Turkey, after our engineer make commisoning at jobsite. GN engineer also give a fast training on equipment operation & maintenance to the jobsite workers while making commisioning. Users very happy for this.
Nigeria oil drilling market requires a lot of vertical cutting dryers, GN has already supplied Vertical Cutting Dryer (Vertical Centrifuges) to Russia,Brazil, Libya and China.
GN Solids Control also have very good busines in Nigeria for Solids Control Equipment & Decanter Centrifuges.
About GN Vertical Cuttings Dryer:
In drilling operations, typical solids control equipment discards 1-4 barrels of liquid for each barrel of solids removed.GN drilling cuttings dryer system consisting of Vertical cuttings Dryer and the relevant equipment could discharge 1 barrel of liquid for 3 barrels of solids removed.GNCD930 has proven to reduce this liquid to below 3% by weight by site test：
1) Reduce the amount of OBM or SBM on cuttings discharge to reduce waste volume and meet environmental objectives.
2) Recover valuable base fluids for reuse and lower the cost.
3)Reduce fluid content prior to other treatment, thereby increasing process capacity.
GN Vertical Cuttings Dryer Structure Features:
In short，GNCD930 Vertical Centrifuge could help you meet environmental objectives by reducing waste volume, maximizing liquid recovery and reducing your project cost.GN Solids Control can provide all-around mud recycling and treatment equipment.
n the design process of GNCD cuttings dryer, user maintenance is taken into full account. All wearing parts are easily removable belt can also be replaced without disassembling the gear box, and the gear box part can easily be removed.
GNCD dryer is designed for high-speed rotation industry work, and take full account of the dynamic balance. Each rotating parts have been done a dynamic balance, in order to ensure that the replace part does not affect the whole dynamic balance.
The gear box is used to offer differential speed between screen basket and screw pusher. As the gear box is an integral structure, whole replacement is required. GNCD dryer has independent external circulating oil lubrication system. The lubricating oil pump and the filter device are arranged outside the GNCD dryer for easy operation and maintenance. To ensure sufficient lubrication for gear box and bearings, a pressure control switch and the flow control switch is needed in this lubrication system. To ensure the normal lubrication, these switches are connected with host or alarm.
We can work together with the Nigeria Local companies to rental Vertical Cutting Dryers or sale the dryers.
For the type of shale shaker screens，GN owns the following types
Steel Frame shale shaker screen
Hook Strip flat shaker screen
Pyramid shaker screen
Composite material shale shaker screen
Shale Shaker Screen
For the following countries and regions GN have already sold equipment or shale shaker screens:
China, USA(America),Canada, Russia,Middle East (Kuwait, Saudi Arabia, UAE, Iran, Iraq, Oman, Yemen Qatar etc.), Latin America (Brazil,Argentina,Columbia, Venezuela Chile， Ecuador etc), Australia, New Zealand, Europe, India, Indonesia,Thailand,Malaysia ,and Africa (Nigeria,Libya,Egypt Sudan,Algeria,Kenya)
GN supply replacment shale shaker screens for following model of shale shakers
GN Group of Shale Shakers :GNZS703 GNZS853 GNZS852 GNZS752 shale shaker.
Derrick model of shaker: FLC 2000 FLC 500 FLC 503 FLC 513 FLC504 FLC514 shaker or mud cleaner.
