Patent ID: 8893808
Filing Date: 2014-11-25
Classification: E21B

Abstract:
1. A control system for a centering mechanism configured to move a housing centerline of a tool towards a centerline of a wellbore in which the tool is positioned, said tool including a housing, an outer surface, and an inner surface spaced apart from said outer surface, said wellbore including a wellbore wall and a wellbore diameter centered upon and extending radially away from said centerline, said control system comprising: a centering mechanism that includes: a biasing mechanism including: a release mechanism coupled to said upper traveling head, said release mechanism being electro-mechanically actuated from a locked position in which said release mechanism maintains said upper traveling head in said first position to a released position in which said release mechanism releases said upper traveling head, thereby allowing said biasing element to urge said upper traveling head towards said second position; a first sensor positioned on said tool, said first sensor detecting a first parameter and generating a first signal reflective of said first parameter; at least a second sensor, said second sensor detecting at least a second parameter and generating a second signal reflective of said second parameter; a memory storage device to store an operating program, said operating program configured to calculate an actuation signal as a function of at least one of said first signal and said second signal; a controller configured to receive at least one of said first signal from said first sensor and said second signal from said second sensor, to run said operating program, and to transmit said actuation signal to said release mechanism to transition said release mechanism from a locked position to a released position; and, at least one power source that provides power to at least one of said first sensor, said second sensor, said memory storage device, and said controller.