Method and apparatus for quick determination of the ellipticity of an earth borehole
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United States of America Patent
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Mar 14, 2000
Grant Date -
N/A
app pub date -
Sep 23, 1998
filing date -
Jun 26, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A downhole apparatus is provided for quickly and accurately estimating the ellipticity of an earth borehole during any drilling operation using circle-based calculations involving statistical analysis of distance measurements made by acoustic sensors. A corresponding method of estimating such ellipticity is also disclosed.
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