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.

Screen tube characteristics
1. This product can be customized with different specifications and raw materials (mainly stainless steel and carbon steel) according to the actual needs of customers, thereby ensuring reasonable investment and saving production costs.
2. The screen casing is a non-stainless steel product and can be galvanized to form a protective layer. The appearance is beautiful and clean.
3. The screen casing has a high-precision filtration effect, and the effluent water quality is stable, and can be applied to different raw water quality and water requirements.
4. Screen casing is widely used in the filtration and supporting of industrial water treatment such as supply water and condensate water in power plant equipment, petroleum, pharmaceutical and chemical industry, coal, metallurgy, papermaking, food and beverage, beer production, environmental protection and other industries.
5. The various advantages and performances of the screen casing improve the working efficiency and service life of the filter, making this product a leader in water resource filtration equipment.

Drilled screen casing

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 casing

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.