... more suitable for the construction of high-quality water wells, oil wells and gas wells. 2. Low cost operation Screens with high open ... abrasion of the pump. 4. Extend the life span of wells Comparatively, groundwater’s entering into screen with higher open area ... . The slow water flow shall extend the life span of wells. SIZE (INCH) O.D (MM) SLOT (INCH) LENGTH (M) COLLAPSE ...