Screen Casing

Screen Casing

Screen casing is a filter used in wellbore projects such as oil, natural gas and water. Its function is to filter out impurities and particles such as well walls and formations to ensure the normal operation of bottom-hole equipment and pipelines.

Drilled screen

Base pipe: oil casing, oil pipe, seamless pipe, straight seam pipe
Material: J/K55/N80/L80/P110 carbon steel, stainless steel, alloy steel;
Steel pipe length (single): no more than 20m
Pipe outer diameter: 60---500mm
Wall thickness: no more than 20mm
Hole diameter: 1~30mm
Seam type: round hole
Seam density: any, can be customized according to the customer's flow area
Seam type: parallel, staggered, spiral

Wire wound screen tube

Wire and support strip materials: AIS1304, AIS1304L, AIS1316, AIS1316L
Center base tube: J55, N80, P110 and 13Cr, etc.
Opening area: up to about 60%
Range: 0.1-2.0mm
Length (single): 1.8, 3.0, 6.0, 9.0, 12.0, etc.

Features ⇀ Resistant to acid and alkali corrosion, long life. ⇀ After continuous optimization of the opening design, the large opening design is adopted to make the filtration accuracy and area more precise. Moreover, the small outer gap and the large inner gap make the gap self-cleaning and difficult to block, ensuring the smoothness of fluid filtration, production efficiency and the service life of the filter. ⇀ The minimum width of the opening gap reaches 0.1mm, which can meet the needs of most sand control work underground. Under the same gap accuracy, the flow area is higher and the flow resistance is lower, which is 3 to 5 times that of ordinary slotted screens. ⇀ Mature technology, easy to layer. The wire winding and all ribs are fully welded, and the screen sleeve is supported by a base pipe inside to increase durability and strength and effectively extend the service life. The strength of the central base pipe is only 2-3% lower than that of the original steel pipe.
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