Downhole electrical to hydraulic actuator

摘要

An apparatus that is usable with a well includes a power converter and a controller. The downhole power converter translates electrical power into hydraulic power in the well to generate a first hydraulic signal to cause a downhole tool to transition to a first state and a second hydraulic signal to cause the tool to transition to a different second state. The controller responds to stimuli that are communicated from the surface of the well to cause the actuator to generate one of the first and second hydraulic signals. The apparatus may comprise hydraulic pumps 120 driven by electric motors 110 which generate hydraulic signals for a tool such as transition valve 90. A controller 100 is connected to electrical lines 11 from the surface for decoding electrical stimuli and communicating power from the lines to the motors.