发明名称 |
Method for Automatic Control and Positioning of Autonomous Downhole Tools |
摘要 |
Methods and apparatus for actuating a downhole tool in wellbore includes acquiring a CCL data set or log from the wellbore that correlates recorded magnetic signals with measured depth, and selects a location within the wellbore for actuation of a wellbore device. The CCL log is then downloaded into an autonomous tool. The tool is programmed to sense collars as a function of time, thereby providing a second CCL log. The autonomous tool also matches sensed collars with physical signature from the first CCL log and then self-actuates the wellbore device at the selected location based upon a correlation of the first and second CCL logs.
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申请公布号 |
US2013255939(A1) |
申请公布日期 |
2013.10.03 |
申请号 |
US201113989726 |
申请日期 |
2011.11.17 |
申请人 |
KUMARAN KRISHNAN;SUBRAHMANYA NIRANJAN A.;ENTCHEV PAVLIN B.;TOLMAN RANDY C.;ANGELES BOZA RENZO MOISES |
发明人 |
KUMARAN KRISHNAN;SUBRAHMANYA NIRANJAN A.;ENTCHEV PAVLIN B.;TOLMAN RANDY C.;ANGELES BOZA RENZO MOISES |
分类号 |
E21B23/00 |
主分类号 |
E21B23/00 |
代理机构 |
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