| 摘要 |
A wellbore screen includes a base pipe including a wall, an inner bore surface and an outer surface, at least one opening formed through the base pipe wall and a filter cartridge mounted in the at least one opening. In one aspect, the wellbore screen includes an impermeable layer relative to the at least one opening and the impermeable layer may be selected to be substantially impermeable when in a closed position in the at least one opening to passage of fluids through the at least one opening and, the impermeable layer is at least one of (i) selectively openable to permit fluid flow through the at least one opening and (ii) selectively closeable when triggered to close the at least one opening. In another aspect, the at least one opening may include a tapering diameter from one end to the other and the filter cartridge may include an outer diameter formed to reversibly and substantially correspondingly taper relative to the at least one opening to permit a taper lock fit in the opening. |
