There are some people don’t grasp the basic functions of shale shaker. From the short understanding, it’s an associated device to shake or create mud oscillating. Shale shakers are the devices with vibratory motor to separate particles out of drilling fluids.
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The shaker can also be known as a vibration device. It’s the primary stage solids control management device. Typically it separates particles larger than seventy six microns from drilling mud. The mud flow through the high set pipeline gets to the baffle box on the shaker or on to the distribution box. Then the shale shaker begin operating to shake the mud out solids.
After it processes, the solid particle size is going to be smaller than 76microns. Clean mud can make up the shaker compartment or sinking compartment. Then the after equipment can do follow process, like Desanding, Desilter, etc. So, the shale shaker is that the key instrumentation on mud system. Even there used to be a specialist mentioned “In the longer term, the entire drilling fluids unit simply wants one excellent shale shaker”.
The vibratory shaker sometimes consists baffle box, the motor support beam, the vibratory motor, the hydraulic pressure adjustment, motor starter, deck, screen. These area unit main components on the whole shaker.
Moreover, if requested by consumer the baffle box are going to be replaced by a divider for mud distribution and crunching. The vibratory motor will be chosen as per client preference. And therefore the motor divided into explosion proof and customary kind. This is often set by the usual trade. The deck will be designed to 1 or double, etc.
Screen is formed of stainless-steel wire mesh. The shaker screen will be soft/hard hook trip kind, steel frame screen. Then will be separated as flat screen, pyramid shaker screen.
As we tend to all understand. API hold commonplace on screen manufacture. If the cut purpose larger the mesh is going to be less. The realm is a very important issue on shaker screen capability. The open space proportion is a difficulty cared a lot of by the consumer.
Screen amount leads totally different treating capability. It’s similar as screen space issue. Select shale shaker from mud system capability then we are able to understand the screen amount and screen space. This can facilitate U.S. perceive higher on shaker performance and screen usable life.
From the start as yet, there are unit fourth generation sedimentary rock shakers together with a circular motion, elliptical motion, linear motion, balanced elliptical motion. You’ll conjointly understand viverrine mammal twin motion shaker we tend to simply treat it as four of the generation. The four m0tions enjoy their own strength.
However, nowdays we are inclined to like linear motion and balanced elliptical motion shaker.
If the screen space is uniform the various motion can start distinction. Since the vibratory motion may result from the treating performance, etc. virtually shakers have the disadvantage of block, jam, horse foot impact, uses ideal sedimentary rock shaker will facilitate a lot of on efficiency.
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Of course, select the suitable vibratory shaker depends on the well drilling and fluids process capability. Additionally think about clients’ demand or preference.
API shaker screens refers to shaker screen conform to API RP13C or previous API RP13E. The designation and features are as follow
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 .
Cut point and conductance test conforms to ISO code and further detail standard. Stick label on quality screen panels as per API RP13C, which request model, cut point, manufacturer information
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
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 . 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.
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.
Contact us to discuss your requirements of Vortex Shaker Screen. Our experienced sales team can help you identify the options that best suit your needs.