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Category Archives: shaker screen

The most important method to remove solid is the vibrating screen

One method of removing solids from drilling mud is to pass the mud over the surface of a vibrating screen. Particles smaller than the openings in the screen pass through the holes of the screen along with the liquid phase of the mud. Particles too large to pass through the screen are thereby separated from the mud for disposal.

Screening Surface. Screening surfaces used in solids control equipment are generally made of woven wire screen cloth, in many different sizes and shapes. The following characteristics of screen cloth are important in solids applications.

screens

Screens may be constructed with one or more LAYERS. NON-LAYERED screens have a single screen cloth mounted in a screen panel. These screens will have openings that are regular in size and shape. LAYERED screens have two or more screen cloths, usually of different mesh, mounted in a screen panel. These screens will have openings that vary greatly in size & shape.

Mesh is defined as the number of openings per linear inch. Mesh, can be measured by starting at the center of one wire and counting the number of openings to a point one inch away.

SIZE OF OPENING is the distance between wires in the shaker screen cloth & is usually measured in fractions of an inch or microns. Screens of the same mesh may have different sized openings depending on the diameter of the wire used to weave the screen cloth.

shaker screen

The smaller the diameter of the wire results in larger shaker screen openings allowing larger particles to pass through the screen. The larger the diameter of the wire, the smaller the particles that will pass through the screen Remember: It is the size of the opening in a screen not the mesh count that determines the size of the particles separated by the screen.

PERCENT OF OPEN AREA: is the amount of the screen surface, which is not blocked by wire. The greater the wire diameter of a given mesh screen, the less open space between the wires. For example; a 4 mesh screen made of thin wire has a greater percent of opening than a 4 mesh screen made of thick wire.

The open area of a non-layered, square or oblong mesh can be calculated and should be available from your screen supplier.

The best quality shaker screen shipped to abroad used in shale shakers

Shale Shaker Screens are one of the major business for DC Solids Control. We understand, the cost-effective shale shaker screens are very important for the drilling operations solids control equipment.

shaker screens

To be as a professional manufacturer of shale shakers, we also provide you the different size and model shaker screens. Now we shipped 1000pcs shaker screens to a abroad oilfield drilling site.

screens

DC Shaker Screens is easily able to manufacture screens provided by original equipment manufacturers. However, knowing that one size does not fit all in the solids removal world, DC can also provide several screen designs to meet your requirements. We provides outstanding screen life for heavy loading applications.

DC Shaker Screens offers a higher capacity screen with an improved longevity over other suppliers screens.

Best Quality HookStrip Flat Shaker Screen of DC Machinery

The hook strip shaker screen has many advantages. Due to the difference in mesh number of the screen meshes, the user can get more excellent screening effect by using the screen meshes with rational and correct arrangement.

hookstrip shaker screen

The metal lining is designed with different hole size to match with screen mesh of different mesh number. On the basis of ensuring adequate strength, we strive to obtain the maximum effective area of the screen mesh. Meanwhile, the integration of the bottom coarse wire mesh with small mesh number and metal lining enhances the strength of the whole product and prolongs its lifetime effectively.

Features of HookStrip Flat Shaker Screen of DC Machinery
Provides improved energy transfer from the shaker basket to the screen, thus faster solids separation
Improves screen life, thereby providing replacement cost savings and downtime minimization
Eliminates the need for crown rubbers, which eliminates the cost of replacements
Individual seals around the perimeter of the screen:Eliminates leakages
Patented pin-and-hole screen securing system

Besides, Hook strip shaker screens have many different type, soft hook strip, metal back (back bounded) hook strip; the metal back hook strip can be flat type or Pyramid (PMD) type. And the hook can be any structure according the design of the shale shaker.

General Rule of shaker screens placement

Pre-tensioned screens are available in different sizes to fit individual systems. Operating conditions should determine screen selection.

Since screen mesh count and screen ratings can significantly impact shaker performance, choosing the correct screen is critical. Each screen directly influences the ability of the shaker to achieve solid/liquid separation and consistent conveyance.

shaker screen

As a general rule, coarser screens are placed on the rear and lower decks, while finer mesh screens are placed near the output. If using a dual deck shaker, finer screens are usually located on the top deck and more coarse screens on the bottom.

Operators should remember that finer screens wear more quickly, especially when subjected to high volumes of solids, such as when top-hole drilling is occurring. Experience will also help guide screen selection regarding flow rate and solids type to maximize solids removal and discharge dryness.

Hot sale shaker screen of DC Solid control

Shaker screen is an important and quick wear parts of shale shakers, whose working effect can direct influence the follow-up.DC Machinery manufactures high performance shale shaker screens which are designed to handle large liquid flow rate capacity, plugging & blinding resistance, durable & long lasting construction at an economical price.

shaker screen

DC Machinery supplies all the popular shale shaker screen on market, which are classified into 4 categories: Steel Frame Shale Shaker Screen, Pyramid Shale Shaker Screen, Hook Strip Flat Screen and Hook Strip Soft Screen. Following is an salable one introduction in our company.

shaker screens

Following are the features of one type of hot sale shaker screen in DC Solid control:

1. To arrange these Steel Frame Shaker Screen layers reasonably and exactly,the screening effect will become better.
2. Configured with high strength steel frame, stiffeners and screen mesh with moderate tension, the performance of the steel frame
shaker screen is enhanced largely in strength, service lifetime and flow of drilling fluid that the product can bear.
3. The mesh numbers of the furnished screen meshes are different. Through combining the screen meshes correctly and appropriately, the screening effect can be improved greatly.
4. The screen mesh is divided into a number of small independent meshes to avoid local damage and excessive expansion. Meanwhile, the special rubber is available for repairing damage, which can save time and reduce using cost.

DC’s shale shaker screens meet all the international standards with a cheaper price. Contact us today to learn more about how our shaker screens can improve your shaker performance and drilling fluid recycling.

630x1250mm steel frame shaker screen shipped to abroad

Steel frame shaker screen is a popular kind of shaker screens. The dimension of 630x1250mm is an hot sale type of DC Solid control. Recent days, a foreign of our old clients ordred 1000pcs of different mesh of 630x1250mm shaker screen to matched our DCS630-3 shaker screen.

Why more users choose our shaker screen?

Strong technology:

Technology has a fundamental impact on the product quality. Our company pays great attention to the design optimization and production technology. We are continuously committed to upgrading our production and developing technology. Our R&D team provides a strong technical support in shaker screen’s production. We try our best to provide our customers with satisfactory shaker screens.

screens

Superior performance:

Our shaker screens meet the international quality standard. They have many advantages, such as, large fluid handling capacity, high screening efficiency, excellent abrasive resistance and low overall operational cost. Our shaker screen can be specifically designed to meet your requirements.

shaker screen

Best after sale service:

Our company lays stress on customer’s satisfaction. We have specialized after-sale service department. Our staffs are ready to provide you with technical guidance and repair service.

If you have requirements of any famous brand types shaker screens, please contact us, you will get the best quality and most complete variety of shaker screens.

High quality with lower price shaker screen shipped to Kazakhstan

In the begining of the 2016, DC Solid control got an order of 1000pcs shaker screen from Kazakhstan whom is a contract of oil and gas drilling. The customer thought our shaker screen is the best quality can compare with other foreign famous brands, also with reasonable price after used our samples.

screens

The orders screen mainly includes Hookstrip PWP, PMD, steel frame shaker screen PWP,PMD and composite materials. DC Solids company keeps hundreds of shaker screens in our warehouse. With the excellent quality, good separating performance, long working lifespan and competitive price.

shaker screen

Another reason why choose DC Solid controls shaker screens

1. Quality manufactured and API compliant shaker screens
2. Right screen, Perfect fit, Competitive price.
3. Exported to over 45 countries and regions.
4. Free screen samples are available for testing purpose.

For more types of shaker screen, please contact DC solid control to get more infos.

Use common sense of shaker screens

Shale shaker can eliminate solid phase particles, it rely on the screen hole size and shape. Field data shows that, using 12 mesh coarse screen most can remove 10% solid phase in drilling fluid.

In order to more and more fine drilling cutting can be removed, we should use 80-120 mesh fine screen. But it can produce the new questions. The screen hole area of fine screen is less than common screen, then decrease throughput; the fine wire strength is low;
When high viscosity drilling fluid through fine screen, the screen hole is easy to be blocked, even completely paste live.

shaker screen

In order to improve screen service life and resisting blocking capacity, the field is also using the lamination shaker screen, the lower coarse mesh shaker screen has the function of supporting. In addition, between layer and layer have certain space distance double or multiple screen. Usually the upper is used coarse screen, the substory is used fine screen. Upper coarse screen eliminate coarse solid phase, it can decrease the burden for substory.

screens

The shortcoming is; cleaning, maintenance and replace of substory is difficult. Because screen more fine more be blocked, so the amplitude of fine shale shaker is exceeding the common shale shaker. According high amplitude to strong vibrate, it can decrease the congestion extent and prevent screen paste phenomenon.

DC Machinery screen to Russian

hookstrip screen is widely used in DCS700-3 shakers. At present we have 500 pcs  screen delivery to Russian. The size of screen is 700x1050mm. Material of the screen cloth is stainless and the frame is carbon steel.

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Shaker screen test

These shaker screens were tested under specific procedure. The test report mainly including the API RP13C sieve testing, the conductance testing, and the non-blanked area determination.

shaker screen

Famous shaker screen manufacture

All over the world there are so many famous brand shaker screens. And the famous manufacturers enjoy high reputation and poplarity on the quality.

Conventional screen types

There are flat type shaker screen and corrugated screens. For example, for DCS series shale shakers, there are PMD or PWP type. Furthermore, the treating capacity of pyramid shaker screen is larger than flat screen.

 

Why shaker screen has screen blinding

Screen blinding occurs when grains of solids being screened lodge in a screen hole. This often occurs when drilling fine sands, such as in the gulf of mexico. The following sequence is often observed during screen blinding:

1. When a new screen is installed, the circulation drilling fluid falls through the screen in a short distance.

2. After a time, the fluid endpoint travels to the end of the shaker.

3. Once this occurs, the screens are changed to eliminate the rapid discharge of drilling mud off the end of the shaker.

4. After the screens have been washed, fine grains of sand that are lodged in the screen surface can be observed. The surface of the screen will resemble fine sandpaper because of the sand particles lodged in the openings.

 

Most eshaker screenvery screen used in the oil field is blinded to some extent by the time it needs replacing. For this reason, when the same screen size is reinstalled, the fluid falls through the screen closer to the feed.

One common solution to screen blinding is to change to a finer or coarser screen than the one being blinded. This tactic is successful if the sand that is being drilled has a narrow size distribution.

shaker screen1

Another solution is to change to a rectangular screen, although rectangular screens can also blind with multiple grains of sand. Unfortunately, the process of finding a screen size that will not blind is expensive.

In the late 1970s, the layered screen was introduced to avoid screen blinding. This hook strip screen was mounted on a downholl sloping, unbalanced elliptical motion shale shaker vibrating at 3600rpm. The two fine layers of screening cloth, supported at 4 inch  intervals, tended to dislodge fine grains of sand and would only blind about 25% in severe laboratory tests, leaving 75% of the screen unblinded. The non-blinding feature is assumed to be the result of the deceleration of the two screens. The wire diameter is in the range of 0.002 inch and the opening size are in the range of 0.004 inch.

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