SYSTEM AND METHOD FOR AUTONOMOUSLY PERFORMING A DOWNHOLE WELL OPERATION

摘要

An autonomous system for performing a well operation at a predetermined location in a wellbore comprises a tool string having at least one well tool , a motive device for traversing the wellbore, and a control system adapted to position the tool string near the predetermined location. The control system comprises (i) a sensing system for detecting mass irregularities in the wellbore and (ii) a processor system having a processor with memory for storing at least one well log. The processor acts under programmed instructions to compare sensor signals to the stored well log to determine a tool string position in the wellbore. The control system also contains circuits for controlling the operation of the well tool and the motive devic e.