A 3D technique of seismic-based geomechanical modeling was implemented in the characterization of the Suslikovskoye oil field, West Siberia, in order to clear up lateral variations of pore pressure and fracturing intensity in tight Jurassic sandstone reservoir at the depth of about 2500 m. Initial data for the modeling were created by structural inversion of 3D seismic data using depth prestack migration and tomographic refinement of P-wave interval velocity distribution. Stratigraphic inversion was used to map lithology variations and azimuthal anisotropy within the reservoir rock. The velocity and lithology variations were, in turn, inverted for estimates of elastic moduli and rheological constants. These estimates were used to calculate distribution of stresses, strains, fracturing, and pore pressure in reservoir rocks which we treated as elasto-plastic continuum. Predicted lateral variations of fracturing intensity and pore pressure are consistent with geological data.
|Number of pages||4|
|Publication status||Published - 1 Jan 2002|
|Event||2002 Society of Exploration Geophysicists Annual Meeting, SEG 2002 - Salt Lake City, United States|
Duration: 6 Oct 2002 → 11 Oct 2002
|Conference||2002 Society of Exploration Geophysicists Annual Meeting, SEG 2002|
|City||Salt Lake City|
|Period||6/10/02 → 11/10/02|