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Top seal ductility estimation (view source)
Revision as of 14:32, 30 July 2014
, 14:32, 30 July 2014→Shale ductility and density
* Shales with a density less than approximately 2.1 g/cm<sup>3</sup> deform ductilely and not by brittle failure at the range of confining pressures found in most sedimentary basins.
* Shales with a density less than approximately 2.1 g/cm<sup>3</sup> deform ductilely and not by brittle failure at the range of confining pressures found in most sedimentary basins.
* Shales with a density greater than 2.1 g/cm<sup>3</sup> will undergo brittle failure given sufficient strain.
* Shales with a density greater than 2.1 g/cm<sup>3</sup> will undergo brittle failure given sufficient strain.
* The ductility can be inferred from the density. Denser shales are more brittle and can withstand less strain before fracturing. Less-dense shales are more ductile and can withstand larger strains before fracturing.
* The ductility can be inferred from the density. Denser shales are more brittle and can withstand less strain before fracturing. Less-dense shales are more ductile and can withstand larger strains before [[Fracture|fracturing]].
* Ductility increases with increasing confining pressure.
* Ductility increases with increasing confining pressure.