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Manufacturing process of DCS linear motion shale shakers

Shale Shaker is the first stage solids control equipment in drilling fluids recycling system; it is also the most important equipment. To a large extent, the performance of shale shaker decides the working efficiencies of whole solids control system.

This month, DC Solid control company is manufacturing 10 sets linear motion shale shaker for a Russian drilling contract. Below is the manufacturing pictures.

linear motion shaker

shale shaker

Advantages of DCS Linear motion shale shaker

1. Design: DCS Series shale shaker adopt ANSYS limited element analysis to optimize the structure.
2. Material: Q235B for shale shaker body, and compound rubber spring used to reduce vibration
3. Vibration motor of shale shaker: Italy OLI /American Martin, or according to customer requirement.
4. Electrical control system: Explosion-proof electrical control system
5. Electrical components: ABB, Siemens, Schneider.
6. Treatment: With the process as pickling, galvanizing-assist, galvanizing, inactivation, fine-polishing . Anti-rust performance is much better than the painting process, and protects live-span and improves the corrosion periods.
7. Shaker screen: Shale shaker screens can be replaced in minutes. Life cycle is much longer for every piece of screen.
8. Minimum and Easy Maintenance

Besides Solids Control, linear motion shale shaker with High G force and large shaker screen area could be used as dryer shaker in drilling waste management project. After treated by Hi G dryer shaker, more drilling mud will be recovered and less volume solid waste discharged.

What should you know if you want to buy active mud system

Mud recycling systems were once considered optional equipment. Environmental regulations continue to become more stringent and we must all responsibly make a contribution to protect our fragile ecosystem.

Using mud recyclers are a valuable asset to drilling contractors, as well-conditioned drilling fluid can save resources, time and money by reducing the amount of water and chemicals needed by reusing your bentonite and water. This helps maintain borehole stability with consistent mud properties through the entire circulation of the fluid and you haul off mainly the drilled solids, not the entire mud returns, including the liquid.

DSC00147

Following are some of the questions to ask yourself before making your purchase:

1. Type of drill rig will you be using?
2. Length of your average bore?
3. GPM of my mud pump or do I need a mud pump on the recycler?
4. Type and size of shakers on the unit?
5. Shaker screen sizes and availability, what is “mesh size”?
6. How do I know if the recycler is working?
7. Purpose of hydrocyclones, and how are they rated?
8. Do I need a trash pump?
9. Parts, service and warranty?

mud system

These factors are important to know so that you use a recycler that is sized to clean the mud and protect the components on the rig, pump and cleaner. DC Solid control will helping you to solve all problesm. So if you want to buy mud sytsem, please contact

What is the definition and function of mud cleaners

A Mud Cleaner is a desilter unit that is used to remove sand particles which have a grain size of 20 microns or less. This is a hydroclone that operates on the basis of centrifugal force such that the mud with smaller particles is returned to the active system while the larger particles are discarded.

The primary function of a mud cleaner is to remove sand and silt from drilling fluids in the drilling rigs. The usual size of a desilter is 6 inches and above, however, the most common size is 10 inches.

cleaners

Mud cleaners are used mainly with oil- and synthetic-base mud where the liquid discharge from the cone cannot be discharged, either for environmental or economic reasons. Desilters as well as desanders are considered to be mud cleaners which are similar to each other with the only difference in the size of mud particles that are removed by the two devices.

mud cleaner

Desilters remove mud particle sizes which are 20 microns or lesser whereas desanders remove mud particle sizes from 50 to 70 microns. The installation position of desilter is downstream from the desander in the surface mud system.

All those solids that are not removed by a shale shaker are removed by a desander. Further the smaller size of granules lesser than 20 microns are removed by the desilter. Mud cleaners do not have any moving parts and the removal of sand and silt from the drilling fluid is done by the centrifugal force on the device.

Repeat order of JBQ7.5 Mud agitator for Pakistan

To keep both the mud uniformity and the suspension of solids, the mud agitator is used to agitate the mud consecutively and reliably.This agitator agitates the mud to make cuttings, silt and sand pass the solids control system without being precipitated onto the tank bottom.

DC Solid control got an repeat order of mud agitator from Pakistan old partner. They ordered 24sets JBQ7.5KW mud agitators. DCJBQ Series Mud Agitator combines compact design with high torque performance levels necessary for a uniformly suspended flow of drilled solids throughout the mud systems.

agitators

Powered by 1500RPM (4 pole) 7.5kw explosion proof motor and connected through heavy duty gear reducer, this agitator transfers high torque at RPM to Impeller to perform the most severe mud mixing conditions.

mud agitator

Impellers are available in three types viz. six blade mixed flow turbine type, four blade axial flow type and three blade twisted profile type to achieve highest performance in different site and mud conditions. Gear reducers are worm type or helibevel type depending on the choice of the user.

Available in various mud tank for sale from DC Mud equipment

DC Mud equipment company specializes in offering quality Industrial Mud Tank, which meets the variegated requirements of our clientele. These are appreciated for the features like high performance, efficiency, minimum maintenance, robust construction and cost effectiveness.
Available in various sizes and dimensions, these are customized according to the client’s specific requirements.

tank

Features of DC designed Mud tanks
1. Unibody design reduces manufacturing time and weight.
2. High tensile steel runners to improve life of skid
3. Exterior mounted stairs
4. Flip up level gage measuring zero to 32m^3. Optional digital level gauge as part of our site stability monitor package.
5. Fold up aluminum hand rails
6. Fibergrate top deck with optional anti-static guard.
7. Built in mini-degausser
8. Remote mount valve handles accessible from onto of the deck.

mud tank

DC Mud equipment Company is a leading manufacturer in the field of Engineering 20ft, 30ft, 40ft UN Portable ISO tank containers, HCL ISO tank container, storage tanks, transportation tanks, Tote tanks, Offshore tank containers, Offshore mixing tanks.

The double deck desilter unit used for drilling water site

The double deck shaker is usually a dual-function unit which can be used both as shale shaker and mud cleaner, the bottom shaker is taken as shale shaker to separate big solids, the best shaker is acted as desilter flow shaker. The double deck shaker with desilter is widely applied for the well drilling field.

double deck shaker

Double deck shaker with “desilter cone and founfation small tank

Fluids will firstly be pumped onto the bottom shaker, the shaker screen is small API number to separate the lar123ge particle from the fluid. Secondly, DC high effective centrifuge pump will transfer the fluid to desilter cone for second step process.

The top deck will handle the fluids from apex of de sander cone.. But the feeding type is very simple way in which can save the working space. Higher mesh shaker screen is applied on the shaker than de sander shaker. It is effective for the 250GMP and 350GPM capacity.

Besides abobve, the small unit includes a tank which is a base of the desilter and mixing material. To be as a professional manufacturer of mud equipment. DC Machiney can design all types mud system unit used for different areas, such as, oil& gas drilling, HDD, CBM, pilling project and ect.

 

Semi-finished Mud tank and desilter in DC Workshop

DC Solid control almost the production of the two mud tanks, mud hopper and desander equipment. The specification design equipment manufactured an American drilling company who are our new clients in OTC exhibition.

The requirements of the mud tank:

A Mud Tank is a container made from steel plate and steel tube with an open top for storing drilling fluids on a drilling rig. The small mud tank dimension, material and paint color all have specification request.

mud tank

The requirements of the mud desilter:

The desilter should has should be input pipeline, output line, bottom shaker, base frame, etc. Also there maybe without bottom shaker according to user’s demand. The technique specs should be from user’s requirement on treating capacity, actual operation environment, etc. Usually the desilter cone diameter is 4″. Presently, DC desilter mainly use PU material cones, and clamp type one. Furthermore, there can be desilter cone with bottom shale shaker or not.

desilter

Except oilfield desilter and tanks, DC Solid control can also supply oilfield drilling shale shaker,oilfield drilling decanter centrifuge, oilfield drilling mud desander, oilfield drilling mud cleaner, shaker screens and the complete set of various solids control systems.

 

Complementary use of hydrocyclones and centrifuges

DC Machinery offers solutions for all of your Classification needs from hydrocyclones and centrifuges to classifiers and heavy media separation.

Hydrocyclones are related to centrifuges in that both are intended to separate heavies and lights by application of centrifugal force. The key difference is that hydrocyclones are passive separators capable of applying modest amounts of centrifugal force, whereas centrifuges are dynamic, spinning separators that are generally able to apply much more centrifugal force than hydrocyclones.

cones

Another key difference between hydrocyclones and centrifuges is cost. Centrifuges are expensive precision rotating machines that often need sophisticated control, whereas hydrocyclones have no moving parts and usually no controls at all, so they are lower cost devices.

hydrocyclones

Hydrocyclones and centrifuges are complementary rather than competing devices. If gravity alone will settle a significant portion of your solids in a minute or two using a quick bottle test, you should investigate hydrocyclone separation. If settling takes much longer than this, then you may need a centrifuge or other separation method.

Old-fashioned desander and desilter delivery from DC Solid control

Desander and desilter is widely used in mud cleaning system. Following the progress of the time and high requirements of users. The desander and desilter all make greats progress. But recent days, DC Solid control company got an order of 6 sets old-fashioned desander and desilter used for HDD industry.

Desander is installed on top of the mud tank following shale shaker and vacuum degasser, but before the desilter. Desilter is installed on top of the mud tank following Desander. They also can be installed completely: in this case, they are installed on one deck shaker and called mud cleaner or mud conditioner.

desander desilter

Desander removes the abrasive solids from drilling mud which cannot be removed by shale shakers. Normally the solids diameter for desander to be separated would be 45~74μm, and 15~44μm for desilter.

Both Desilters and Desanders are available in a large range of configurations including stand alone, over a shaker as a mud cleaner or packaged with a supply pump as a mobile desilting unit. Please contact DC Solid control office to discuss applications and appropriate technical specifications.

 

Simplified Principle And Operation Of Mud Gas Separator

The mud/gas separator is designed to provide effective separation of the mud and gas circulated from the well by venting the gas and returning the mud to the mud pits. Small amounts of entrained gas can then be handled by a vacuum-type degasser located in the mud pits. The mud/gas separator controls gas cutting during kick situations, during drilling with significant drilled gas in the mud returns, or when trip gas is circulated up.

The operating principle of a mud/gas separator is relatively simple. The device is essentially a vertical steel cylindrical body with openings on the top, bottom, and side.

poorboy degasser

The mud and gas mixture is fed into the separator inlet and directed at a flat steel plate perpendicular to the flow. This impingement plate minimizes the erosional wear on the separator’s internal walls and assists with mud/gas separation. Separation is further assisted as the mud/gas mixture falls over a series of baffles designed to increase the turbulence within the upper section of the vessel. The free gas is then vented through the gas vent line, and mud is returned to the mud tanks.

mud gas separator

Operating pressure within the separator is equal to the friction pressure of the free gas venting through the vent line. Fluid is maintained at a specific level (mud leg) within the separator at all times. If the friction pressure of the gas venting through the vent line exceeds the mud-leg hydrostatic pressure within the separator, a blow-through condition will result sending a mud/gas mixture to the mud tanks.

As one can readily see, the critical point for separator blow-through exists when peak gas flow rates are experienced in the separator. Peak gas flow rates should theoretically be experienced when gas initially reaches the separator.

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