Rock Physics of Shale - Stanford University
Rock Physics of Shale - Stanford University
Rock Physics of Shale - Stanford University
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€<br />
Beware <strong>of</strong> Poor Legacy Assumptions<br />
€<br />
σ v<br />
σ h<br />
• Sediments deform plastically<br />
during burial – not elastically<br />
• Therefore the horizontal stress is<br />
NOT the elastic expression:<br />
σ h ≠σ v<br />
σ h ≠σ v<br />
⎡⎡ ν ⎤⎤<br />
⎣⎣ ⎢⎢ 1−ν ⎦⎦ ⎥⎥<br />
⎡⎡ C ⎤⎤ 13<br />
⎢⎢<br />
⎣⎣ C ⎥⎥<br />
⎦⎦ 33<br />
64<br />
Gary Mavko – <strong>Stanford</strong> <strong>Rock</strong> <strong>Physics</strong> Laboratory
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