Method of determining in-situ stresses
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United States of America Patent
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-
Jan 2, 2001
Grant Date -
N/A
app pub date -
Jul 6, 1999
filing date -
Jul 7, 1998
priority date (Note) -
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Abstract
A method is provided for determining an in-situ stress of an earth formation subjected to first, second and a third in-situ stresses, wherein a borehole has been drilled into the formation, the borehole containing a borehole fluid inducing a selected pressure to the borehole wall so that in a region of the formation the first in-situ stress is replaced by another stress depending on the selected pressure induced to the borehole wall.
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