Dockable direct mechanical actuator for downhole tools and method

摘要

The present invention provides an improved system and method for performing a desired operation at a remote location in a wellbore. The system is composed of a downhole docking station assembly and a detachable downhole tool assembly. The downhole tool assembly includes electrically operated means to move in the wellbore and an end work device to perform the desired work. The downhole tool can also include an imaging device to provide pictures of the downhole environment and various sensors. Data from the downhole tool is communicated to a surface computer, which controls the operation of the tool and displays pictures of the tool environment. The downhole tool detaches itself from the docking station, travels to the desired location in the wellbore and performs a predefined operation according to programmed instruction. The downhole tool returns and connects to the docking station, where it transfers data relating to the operation and can be recharged for further operation. Various attachments for the downhole tool assembly can be stored and selectively retrieved for downhole locations.