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Mechanical failure of cavities in poroelastic media

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The stress-induced failure of cavities in poroelastic media is investigated using an analytical solution of the elastic matrix inclusion problem of Eshelby and a rock failure criterion. The elastic properties of the porous matrix surrounding the cavity are modeled using a self-consistent version of the theory of Berryman while the cavity collapse criterion is based on a failure condition calibrated as a function of matrix mineralogy, grain size and porosity. The influence of the latter textural variables as well as pore fluid pressure and cavity shape and orientation relative to the far-field stress are evaluated. The region of failure on the cavity surface is identified. These results are applied to the prediction of vug stability in a sedimentary basin in the context of vuggy reservoir exploration and production.

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Last Updated September 29, 2016, 15:33 (LMT)
Created September 29, 2016, 15:33 (LMT)
Citation Ozkan, G. Ortoleva, P. [Indiana Univ., Bloomington, IN (United States)] ---- Roy Long, Mechanical failure of cavities in poroelastic media, 2016-09-29, https://edx.netl.doe.gov/dataset/mechanical-failure-of-cavities-in-poroelastic-media
Netl Product yes
Poc Email Roy.long@netl.doe.gov
Point Of Contact Roy Long
Program Or Project KMD
Publication Date 1998-12-31