Instantaneous measurement of drillstring orientation
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United States of America Patent
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Sep 10, 2013
Grant Date -
Sep 25, 2008
app pub date -
Sep 12, 2007
filing date -
Sep 13, 2006
priority date (Note) -
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Abstract
An orientation measurement system is deployed in a wellbore drilling system having one or more reservoir imaging and characterization tools, directional tools, and/or other known BHA tools in a rotating section. The orientation measurement system includes a processor receiving signals from a rotary position sensor measuring an angular position of the rotating section relative to the non-rotating section and receiving signals from an orientation sensor determining the orientation of the non-rotating section relative to a reference frame such as highside. The processor uses the first and second signals to determine a tool face of the rotating member relative to the highside and periodically and/or continuously transmits the determined tool face along the BHA via a suitable communication link. The determined tool face is used by the BHA tools to synchronize measurements with highside and/or to determine azimuth.
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