slot casing pipe
slot casing pipe is in various ways on the petroleum casing or tubing cutting out more than a certain specifications of the longitudinal or helical inline and staggered slot.
it is using special ultra-thin cutting plate and beam cutting , the slot width is 0.2 to 0.5 mm. Seam cross section is rectangular, trapezoidal (trapezoid Angle of 3-8 degrees) and form (hole) and so on , there are many kinds of form, could guarantee permeability is 0.5% - 10%, the arrangement of aperture according to user requirements for processing.
slot casing pipe
The minimum slot width that can be achieved is about 0.012 in. Slots that cut less than 0.020 in. in width involve high costs because of excessive machine downtime to replace broken saw blades that overheat, warp, and break.
The single-slot staggered, longitudinal pattern is generally preferred because the strength of the unslotted pipe is preserved. The staggered pattern also gives a more uniform distribution of slots over the surface area of the pipe. The single-slot staggered pattern is slotted with an even number of rows around the pipe with a typical 6-in. longitudinal spacing of slot rows.
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