System and method for stress field based wellbore steering
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United States of America Patent
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May 29, 2012
Grant Date -
Mar 12, 2009
app pub date -
Aug 4, 2008
filing date -
Sep 28, 2006
priority date (Note) -
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Abstract
A system and method for the geomechanical steering of the orientation of a wellbore is disclosed. In one embodiment, any available a priori data regarding the stress characteristics of a region of interest are used to develop a preliminary stress model for the region. A geosteered drilling operation is thereafter commenced, with the trajectory being steered in a direction relative to the stress model of the region. While drilling, real-time data is obtained from conventional down-hole instrumentation. The real-time data is used to refine the stress model for the region, such that the trajectory can be guided on an ongoing basis to achieve an optimal relationship with the measured stress characteristics of the region.
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