System and method for steering a relief well
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United States of America Patent
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Jan 26, 2016
Grant Date -
May 16, 2013
app pub date -
Sep 14, 2012
filing date -
Nov 11, 2011
priority date (Note) -
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Abstract
A system and method for steering a relief well to intersect a previously drilled wellbore. In one embodiment, a system includes a drill string disposed in the relief well and a surface processing system. The drill string includes a plurality of sections of wired drill pipe connected end-to-end, and a bottom hole assembly disposed at a downhole end of the drill string. The bottom hole assembly includes a drill bit, a steering tool configured to direct the drill bit towards a target, and an acoustic sensing tool. The acoustic sensing tool includes a plurality of acoustic sensors configured to detect acoustic signals emanating from fluid flow in a target wellbore. The surface processing system is coupled to the uphole end of the drill string, and is configured to determine a direction to the target wellbore based on the acoustic signals detected by the acoustic sensors.
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