Apparatus for remote control of wellbore fluid flow

摘要

An apparatus (10) for remotely controlling fluids in a well is provided. The flow control apparatus (10) may include a body member (12) having a flow port (24) in an outer wall (18) of the body member (12), and a flow aperture (30) spaced inwardly from the outer wall (18). A remotely shiftable valve member (34) may be disposed for reciprocal movement within the body member (12) to regulate fluid flow through the flow aperture (30) and flow port (24). An indexing mechanism (52) may be rotatably disposed within the body member (12) to shift the valve member (34) within the body member (12). An operating piston (70) may be engaged with the indexing sleeve (52) and movably disposed within the body member (12) in response to pressurized fluid. A locking mechanism (119) may also be included for locking the shiftable valve member (34) in a closed or sealing, position. Electrically-operated mechanisms for shifting the valve member (34) are also provided.