Patent ID: 8261817

Claim:
A hydraulic actuation module and associated tool assembly for adapting a subterranean mechanically operated tool mounted on a tubular string to an alternative mode of operation, comprising: a first tool having a tool passage therethrough and an actuator in said tool passage for selective mechanical actuation of the tool using a second tool run into said passage to engage said actuator to move said actuator to hold at least two positions of said first tool; a modular housing having a module passage therethrough and a hydraulically actuated actuator member, said actuator member having a retracted position substantially within said modular housing until said modular housing is selectively connected to said first tool to substantially align said module passage with said tool passage and present said actuator member in operable non-overlapping contact with said actuator upon extension of said actuator member from said modular housing for a conversion of said first tool from mechanical to hydraulic operation.