Stress‐induced anisotropy in Gulf of Mexico sandstones and the prediction of in situ stress
Colin M. Sayers,
W. Scott Leaney,
Tom R. Bratton
Abstract:The strong sensitivity of velocity to stress observed in many sandstones originates from the response of stress‐sensitive discontinuities such as grain contacts and microcracks to a change in effective stress. If the change in stress is anisotropic, then the change in elastic wave velocities will also be anisotropic. Characterization of stress‐induced elastic anisotropy in sandstones may enable estimation of the in situ three dimensional stress tensor with important application in solving problems occurring du… Show more
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