slotted pipe manufacturers oil well perforated pipe slotted bore pipe

(1)higher filtration accuracy, because the base pipe for the whole welding wire around the screen, the use of large opening design, the filter precision area is more sophisticated, better play a role in sand control.

(2) Excellent overall strength and resistance to deformation; the internal support by the base pipe, the external according to the need to increase the outer protective cover to strengthen the protection, with sufficient overall strength to resist the deformation of the formation, even if the local deformation, the pressure of the gap Does not increase, high reliability of spinning. 

(3)More choice, the outer screen material can be stainless steel or low carbon steel.