API 13C Shaker screen means screen panel for shaker from manufacturer holding API certificate and the panels have got API RP13C test report

Main specifications of API screen

Shaker screens specification including mesh size or API number. Also the separation point or cut point value. Furthermore, the dimension pattern, conductance and non-blanked area usually display on the tag.

Besides above information, we need to consider the raw material of screen. Such as material grade, detail cloth layers. The punched hole on the back support sheet, including pattern and size.

For example, AIPU screen replacement for PMD500 screen API 70 hold 202.3 microns. The conductance is 3.03Kd/mm. That is at high end of API 70 range. This will lead higher non blanked area nad higher penetration efficiency.

Details of high quality shaker screens

We all know the first impression of quality is from appearance. Such as the surface evenness, the cloth brightness, and there is no leakage of coat neither glue. The separation point accuracy is the essential factor affecting screen performance.

More tiny detail including handles, rubber seal, end or edges fo panels. That means the accessories of panel should be reliable and adaptable for oilfield working condition.

Besides above factors of screen itself, we consider tags or labels and packages as other issues standing for quality in some degree.

High quality Aipu shaker screen

Why clients select Aipu? How does Aipu make high quality shaker screen? Firstly, we have shared over 20 years of screen we know what clients need. Then, we make sure of screen panels holding the exact API size. Thirdly, we treat every tiny things serious for top quality

From raw material to the package and marks. Aipu always do the best to serve clients well. Please find some pictures for your reference. Trust you'll find Aipu screen is different with others'. You have demand or any questions on API RP13C shaker screen? Feel free to contact us now!

API shaker screens test report is the report indicating screens data tested per API RP13C or ISO13501. RP means "Recommended Practice on Drilling Fluids Processing Systems Evaluation". The practice combined and updated two previous separate documents RP13C and RP13E. This document was also passed by ISO as ISO13501

API shaker screens test

Aipu did the API RP13C test in 2014. We are the first shaker screen manufacturer got the compliance report in China. During the test we got D100 cut point and API size for each certain configuration. Also the conductance, the non blanked area

API Shaker screens test

Our API size including API 40, API 60, 80, 200, 270, and so on. The cut point is ranged from 52 to 415 microns based on D100 designation. And the non blanked area is about 0.5㎡ for the screen sized about 4'x2.5'

FAQ about API RP13C test report

Many clients will ask what types of screen you've tested RP13C compliance? Why your API size screen separate different particles as other makes?

Actually, API 13C test report is executed on screen panels provided by screen manufacturer. Screens holding different configuration on wire diameter, mesh size of cloth layer. So, usually, one configuration suits different model screen.

For example, samples dimension is 630x1250mm, top layer is 270mesh, middle layer is 120x70mesh, base layer is 15mesh, the cut point is about 65 microns in the range of API 230 (58-69 microns). If we use this configuration on replacement 48-30 screen, the cut point will be about 65 microns too. So it still work for other types screen

API shaker screens specs

Different manufacturers configure screen variously. Thus the cut point vary from each other. However, as long as cut point in one certain API size range, that means it is API number compliant

Other questions on RP13C screen test report

What is D100 and its relation with API size? The D100 means the diameter of coarsest particle which will pass through the screen during a dry laboratory test. D100 is a single number.

AIPU 500PWP Screen

However, API size for a screen is the API-defined range of sizes into the D100 value falls. Some of the coarser size classes span quite a large range of D100 values

The API sizes don't tell us shaker screen performance, screen model, dimension, and so on. As we said, there is little difference when screen configuration fits on different panels.

Please feel free to contact Aipu for more information on API shaker screens test.

API shaker screens refers to shaker screen conform to API RP13C or previous API RP13E. The designation and features are as follow

API shaker screens feature

Shaker screens conform to API 13C designation including the cut point and conductance. To be API RP 13C compliant, a screen must get test on opening size or the particle size can't pass through screen as per latest practice. The tests describe a screen without predicting its performance. Internationally, API RP 13C becomes ISO 13501.

Cut point and conductance test conforms to ISO 13501 code and further detail standard. Stick label on quality screen panels as per API RP13C, which request model, cut point, manufacturer information

API shaker screens

API screen conductance

Shaker screen conductance is a measure of the ability of a fluid to pass through a screen. 5W30 motor oil can help to test this property. That means, dip the oil on the testing screen sample piece.  Then applying the pressure differential to a formula to calculate the conductance. Because motor oil is oil-wets the screen and has a high viscosity. A large volume of motor oil is needed to allow equilibrium and to prevent large temperature changes

According to practice, we found the screen panel shape is related with conductance. Furthermore, the different screen configuration of different manufacturer vary the conductance as well. In some degree, conductance affect much on filtration efficiency and whole shaker performance

API Shaker screens cut point

The API RP 13C cut point test is based on a time-proven testing method used by ASTM to classify particles by size. The procedure utilizes a series of standard-size screens (sieves), which have been used for such analysis since 1910. The API standards committee simply use these sieves to designate shaker screens. The shaker screen designation is identified by matching the screen’s cut point to the closest ASTM sieve cut point.

The cut point test uses aluminum oxide, a Rotap, a set of ASTM sieves, a test screen, and a digital scale for weighing the quantity of test particles retained by the test screen. The D100 cut point help much on assigning screen designations. D100 means that 100 percent of the particles larger than the test screen will be retained, and all finer particles will pass through. After conducting three Rotap tests, the results are averaged, and the screen is given an API number of the test sieve having the closest D100 cut point.

The cut point information on API screen label give users convenience on screen selection. Make various mesh size standard but same API size.

Shaker screen API label

After identifying the cut point and conductance, complying with API RP 13C requests permanent tag or label to the screen in a position that is visible and legible. Both cut point (API number) and conductance with kD/mm value are on the screen label. Presently, API shaker screen manufacturer will label panels according to same standard. And the API designation must be 2 or more times than other letters on label

No need on screen label material or color. We need to pay attention on label or stickers content and necessary information. Have you faced any problem on API screen label or designation? Please feel free to contact us.

Why shale shaker screen is important? Presently, almost well drillings will request solids control or drilling fluid system. Removing solids from drilling fluid is fundamental to drilling performance. As per decades experience solids control is proven a wide range of benefits, including but not limited to: increased drilling penetration, reduction in mud costs, reduction in disposal costs, and increased bit life. By and large, increased solids removal equates to lower drilling costs for the operator

Shaker screen in drilling mud system

Shaker screen is critical wearing part of shale shaker. So the shaker screen is very important for whole drilling mud system. Better shaker screen will provide better performance and filtration efficient to shale shaker then affect whole mud system even whole well drilling

Shale shakers are the first line of defense for a properly designed solids control system. Shakers have been used on drilling rigs since the 1940’s and are a significant part of the drilling process. Shale shakers work by removing solids from drilling fluid as the mud passes over the surface of a shaker screen. The liquid portion of the mud and solids pass through the screen while larger solids fall off the back end and are thus discarded.

Pyramid shale shaker screen

Drilling fluids are a key aspect of the drilling process and often lubricate & cool the drill bit and take drilled cuttings from the borehole. Shakers still remain the backbone of any solids control system. As time has progressed, so have these technologies; more advanced and efficient designs have been cultivated including shaker screen technology.

API RP13C for shale shaker screen

Shaker screen selection ever faced a problem. As different manufacturers will configure screen with different size wire mesh, etc. This will lead inconvenience even problems to operators during drilling. So presently, screen conforms to API 13C is one important issue concerning quality

For example, one manufacturer told their screen is 140 mesh, however it equals to API 120. Another manufacturer told their screen is 120 mesh and equals to API 120, too. So when we need screen sized API 120, we just tell the API number will be ok. During drilling and shaker operation the proper selection will help to get more ideal separation result

The American Petroleum Institute (API) screen designation has become the standard for the identification of screen panels in the oil & gas industry. API designates the micron opening size (cut point) and the conductance in which the liquids pass through the screen

Aipu shaker screens are in compliance with API labeling practices that includes: API designation, conductance in kD/mm, D100 value, and non-blanked open area in square feet. Our shaker screen are API rated and tested by third party agencies to meet the stringent requirements of API RP 13C

More about shaker screen quality

Of course this is not only issue affecting quality but it is a important reference for clients' option on shaker screen supplier. Other quality issues including wire mesh quality, rubber seal stability， etc.

Just as we talked just now, proper shaker screen selection is reduction in mud costs/disposal costs while increase bit life. In short, proper drilling mud process is rather important and shaker screen is important in drilling mud system

Some clients treat the service life as the only factor to evaluate quality. Actually, it's not reasonable. The quality should be based on separation efficiency, operation convenience, and so on. You may have different comments, please leave it below