This rock-physics investigation aims to understand the elastic response of shales and poorly-consolidated sands with special attention to the variations in textural expression including mineralogy, preferred clay alignment, and porosity; as well as non-textural parameters: stress state and fluid saturation. This research explores such elastic response to produce a deeper understanding in the frequency-related behavior through a modeling approach. Within this framework, two specific aspects are investigated: (i) the elastic modulus as a function of pressure variation, as well as silt- and fluid- inclusion in an anisotropic clay medium, that will consequently produce different clay preferred alignment and distinct anisotropic behaviour at different frequency regime; (ii) the elastic modulus as function of porosity and water-saturation in isotropic granular media, that also addresses frequency-velocity dispersion by acknowledging the microscopic component.
|Number of pages||5|
|Publication status||Published - Feb 2020|
|Event||5th EAGE Workshop on Rock Physics - Milan, Italy|
Duration: 10 Feb 2020 → 12 Feb 2020
|Conference||5th EAGE Workshop on Rock Physics|
|Period||10/02/20 → 12/02/20|