Do you know the double shale shaker ?

Shale shaker is the first stage solids control equipment in drilling fluids processing system,also known as key solids control equipment in drilling mud solids control system. The drilling fluids shale shaker can remove cuttings above 75μm brought from the drilling well to leave the liquid with smaller particles into the drilling fluid circulation mud tanks, which will flow into next stage drilling fluids solids control equipment to be treated.

Double shale shakers
Oilfield shale shakers like derrick shaker and brandt shaker are ordinarily consist of skid, vibration isolation fellow member, screen, screen basket, back again tank ( or referred to as mud feeder), vibration engine, and many others. No issue it is linear movement shale shaker, or ellipse shaker. ?The drilling fluids flows straight into the back tank via the flow line right after the mud arrives out of the surface area of the properly. The solids that precipitates in the back again tank would be discharged via the bottom hole, and drilling fluids would flow onto the screen surface area. The solids that are larger than the meshes would be divided and threw out of the shale shaker via other finish of screen. And the fluids with scaled-down component would go via the meshes and key in the mud tank for even more separation.

Shale shaker framework

The screen of shale shaker can be pieces of panels, or a single integrated panel. The angle of the screen can be horizontal, or with a specific angle, or adjustable inside of an angle variety, like -1° ~ +5° or -3° ~ +6°. The screen can be a single layer, or double layers. The engineer should select the correct kind of shale shakers in accordance to the geological and drilling fluids needs. When the drilling fluids amount is big, double or triple shale shakers could be operated, this kind of the purification capability of the linear motion shale shaker would be far better enhanced.

OGEM Solids Control can manufacture types of drilling fluid solids control systems according to the requirements of different drilling conditions. OGEM Solids Control is well-know as a professional manufacturer and decanter centrifuge supplier of oil drilling solids control equipment in China.

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Drilling Fluid Mud Tank Features and Components

Mud tank is petroleum drilling fluid solid control system, it is mainly including FG and ZG

petroleum drilling mud tank, mud tank circulating system according bottom tank shape is

divided into square tank and tapered tank. The tank use flat taper structure or corrugated

structure, the steel plate and structural steel installed and welded. 

Mud Tank Feature

drilling fluid tank is an open-top container, typically made of steel, to store drilling fluid on

drilling rig. They are also called mud tank mud pits, because they used to be nothing

more than pits dug out of the earth. The mud tank is devided into Square tank and Cone-

shaped tank according to the shape of tank bottom. The body of the tank is made of

welding the steel plate and section, using the flat cone-shape structure or the corrugated

structure.

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Considerations and Maintenance of Mud Cleaner

Mud cleaner is secondary and tertiary of drilling mud solids control equipment, it is the                                                                               cyclone mud desander and mud desilter cyclone and underflow vibrating screen, three to one. Mud cleaner structure is compact, small footprint area, powerful, is to secondary and tertiary drilling mud solids control equipment the ideal choice for efficient cleaner. Mud cleaner by the sewage pump, cyclone desander, vibrating screen, connect the hose assembly.

The drilling mud cleaner has the higher cleaning function associated with detached demander and desalted. In addition to the sensible design process, it colleagues another shale shaker screen mud cleaner features is compact, it inhabits small space and the function is influential. Mud cleaner is the ideal maneuver of the second class and the third class hard control to treat the boring mud.

Considerations on how to use mud cleaner:
1. The use of the polyurethane cyclone temperature greater than 80 ℃, the lowest not less than 30 ℃.
2. The cyclone feeding solid particles in the biggest be less than 1/10 of the feed mouth narrow edge width, such as more coarse particle should screen out in advance;
3. Often visited sand pump feed, equipment, hydrocyclone grit mouth is abnormal, and so on and so forth.

Maintenance fit how to use mud cleaner:
1, clean the vortex tube after the usage and remove the bottom block sand;
2, cleaning sieve and timely replacement of the damaged screen;
3, the eccentric shaft bearing lubrication and maintenance once a week.

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Versatility and Reliability of Drilling Mud Cleaner

In most drilling operations, a mud cleaner is installed in its drilling fluid tanks. It is usually located in a mud tank in the same location as with the desilters. the application of mud cleaner The application of the mud cleaner is to remove drilled solids larger than barite. Solids smaller than 76 micrometers can be removed by the mud cleaner before the viscosity builds up. 

Mud cleaner can effectively control weighted drilling fluid solid content. Versatility of OGEM Solids Control Mud Cleaner compact, patented, multi-functional drilling fluid mud cleaners are designed to be operated as double-deck drying shaker/mud cleaner or double-deck flow line shaker. It is the 2nd or 3rd solilds control equipment. The built in multi-functional feature allows the operator to handle varying drilling fluid viscosities and solids content with the same unit. In the dual simultaneous flow mode, the top deck handles the hydrocyclone underflow and the bottom deck handles the primary scalping.

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Drilling Fluid Mud Cleaner Working Principle and Advantages

As one of the important equipment for solid liquid separation system, the drilling mud cleaner, also called desander and desilter assembly, mainly consists of three parts including desander, desilter and the underflowscreen. It can achieve separation of two stage with the hydrocyclone mounted over the shale shaker. Compared with the independent desander and desilter, the product has much higher working efficiency. Same as the shale shaker in function, the equipment is designed rationally with compact structure, small volume and powerful performance.

Drilling fluids mud cleaner working principle

It is the second or third stage separation equipment of drilling liquid, which will deal with the mud after being treated by the first grade separation equipment. The barite will be recovered and cuttings which are bigger than barite will be removed. Then the barite in the underflow will flow into circulation tanks through the screens when the weighted mud passes while the particles that are bigger than mesh will be removed.

Drilling fluids mud cleaner Advantages

1.Environmentally Efficient The OGEM Solids Control mud cleaner provides efficient removal of sand and silt particles between 12 and 76 microns. Removing and drying drilled solids helps meet environmental regulations by minimizing waste generated and reducing disposal cost.

2.High Performance installed with 1-3 10″ desander cones processing 500gpm respectively and with 8-20 desilter cones which each one can process 80gpm, the ogem mud cleaner can make a separation between 12 and 76 microns.

3.Versatility: OGEM’s compact,multi-functional mud cleaners are designed to be combined with desander, desilter and an Underflow shale shake. The equipment in multi-functional feature allows the operator to handle varying drilling fluid viscosities and solids content with the same unit.

4.Extends Equipment Life, The mud cleaner helps minimize maintenance, repair and replacement of downstream equipment.

5.Reduces Operating Cost, The mud cleaner reduces sand and silt-size particles and saves liquid, thus reducing mud cost, chances of stuck pipe and lost circulation and improving rate of penetration.

6.Reduces Disposal Cost, The mud cleaner minimizes waste generated thus reducing disposal cost.

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Principle of operation and characteristic of mud shear pump

OGEM Solids Control mud shear pump is the newly designed equipment for fast mud

configuration and processing. It can meet the requirements of customers with high-

performance mud. The product can effectively mix and fully hydrate the material added

into the drilling fluid, which can save the added polymer and shorten mud configuration

time. As an ideal solid control device, the product can provide high quality drilling fluid for

drilling process. It can shear the high polymer in the drilling mud to ensure the polymer can

pass through the shale shaker screen.

The shear pump adopts a set of mechanical seal for no leakage at stuffing box. Inside

pump is a series stainless steel turbine containing nozzles, four scoops and shear plate.

Fifty percent of the fluid is sheared twice each time through the pump. This turbine shear

pump is mounted on a special base with belts and sheaves to drive pump, belt guard and

a explosion proof U/L approved electric motor. Included is a special hopper with nozzle

sized for this application and one mud kit as a package in order to build a complete shear

and hydration system. The pump is designed to give longer service life through the improved shaft seal. 

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It will bring out the particles and be lead to the mud tank

Solids control system is an indispensible part for every drilling rig. But many newcomers of drilling industry have no idea of the functions of Solids control equipment.

Both of these make the Solids control equipment so necessary and important, because Solids control equipment can provide a circulation system for drilling mud. After the new compounded mud used for the lubrication of the drill bit, it will bring out the particles and be lead to the mud tank,shale shakerdesanderdesiltercentrifuge and some other components of drilling Solids system, through which even very small particles can be separated. And then the mud will be filled with some water or added with some kinds of chemicals, through which the mud can be filled back to well again and perform just as new mud. This kind of circulation can provide a sustainable usage of drilling mud, which can save much for the operators. With this system, operators don’t need to purchase large quantity of mud and also don’t need to be worried about the penalties or lawsuits from the environmental departments of the countries where oilfields located. Because the Solids control system can reduce the pollution of environment in a very low level.

Environment protection and cost saving are the two main functions of Solid control system during drilling. And because of these functions, so many Solids control equipment manufacturers are focusing on this area and devoting themselves to improve the technology of the system.

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Operating Principle of Drilling Mud Agitator

Mud agitator/mixer can be used widely in various applications. Including drilling mud mixture, chemical agitating, food or beverage, etc. It will be mounted on mud tanks or set right over mud pit. The mud agitator will help mix subject with powerful rate.Drilling mud agitator is a part of mud recycling system. It is designed for mixing mud and avoiding the drilling cuttings deposit on the bottom of drilling fluid tank . Its main function is to make the drilling fluid solid particles in suspension.

Mud agitator composed by explosion-proof motor, reducer, engine base and impeller components four parts. The motor and the speed reducer, reducer and the impeller shaft are connected through rigid coupling. Impeller consists of four blades welding formed. The impeller can make the mixing liquid to produce the vortex motion, thereby enhancing the mixing effect. Caught in the middle of the blade tray can also prevent downtime mud particles deposited on the lower leaves around, such use can reduce the starting resistance torque of sediment on the blade, thereby avoiding overload and burnout motor .

Operating Principles
The impeller can strengthen the stirring effect by making vortex of the drilling fluid. The tray installed between the leaf blades can prevent the deposition of the solid particles when the machine stopped, thereby, to reduce the moment of resistance inflicted by the sediment to the impellers when restart the equipment, therefore, to avoid burnout of the machine.

In China solids control industry, OGEM Solids Control  is a solids control leader and decanter centrifuge supplier in drilling waste management. OGEM Solids Control is capable of providing customers with such four series as oil & gas drilling solids control equipment, centrifuge, drilling waste treatment equipment and drilling security equipment, including 25 categories of products,such as oilfield drilling shale shaker, shale shaker screen, mud desander,mud desilter, vacuum degasser, centrifugal pump, submersible slurry pump, shear pump,mud agitator, mud gun, mud cleaner,decanter centrifuge,jet mud mixer, mud tank, complete solids control system,etc.

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The drill has holding tanks and a collection of solids-removal equipment

In drilling operation,drilling mud was pumped from the mud tank into standpipe by

high-pressure mud pump. Under the huge pressure, the mud went into the rotary hose 

and down through the bottom of the hole. Here mud clean the cuttings and takes them 

back to the surface through annulus. At surface, the drill has holding tanks and a collection

 of solids-removal equipment for removing the cuttings. Before it returned to the suction pit 

it would have passed over a shale shaker to get large cuttings removed,and in later the 

vacuum degasserdesander,desilter. At the same time, the high-pressure was also

 connected to choke and kill lines for well control operation.

With the drilling technology development,each performance index has been recognized as

 the signs of scientific drilling. Performing a number of functions,drilling mud has been 

hailed as the blood of drilling processing. It cleans ans suspends drilling cuttings 

concentrated in hole, taking them to the surface where they are settled out,cooling drill bit,

 forming mud cake to protect hole well,controlling stratum pressure,diverting pressure 

from casing,saving, transmitting hydraulic energy to tools and control corrosion. Solids 

control equipment designed for mud purification has been increasingly significant in drilling operation.

Tangshan Aojie petroleum machinery equipment co.,ltd(OGEM Solids Control) as a

professional manufacturer of drilling mud solids control equipments,design and

manufacture mud solids control equipments for oil&gas field.

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Drilling Mud Solids Control Equipment–Screen

How to choose right drilling mud solids control equipment?

Screen, shaker screen

Screen surface: Usually,larger contact area screen will have better treating capacity,the more screen surface area you have means more volume that you can clean.So the vavy screen is better than plan screen;the larger area plan screen is better than small area plan screen.

Screen selection: Mesh size of screens is measured by the number of holes per square inch on the screen. Different mesh sizes control the size of the cuttings that you want to remove. The same mesh size will not work in all drilling conditions. Sizes will vary depending on the size of the cuttings and the type of formations you are cleaning.

Usually,the if the mud is water basic,and the slurry density is 1.2g/cm³,viscosity 45s,the screen size should be 40mesh for drilling mud shale shaker; 120-150mesh screen for mud cleaner.

Sure,we can do it as per client’s requirements.