Identification of near-surface fractures via seismic-radial anisotropy

Jeng, Jer-Yu (Michigan Technological University) | Askari, Roohollah (Michigan Technological University) | Chatterjee, Snehamoy (Michigan Technological University) | Dolatabadi, Reza (University of Tehran)


Fractures are crucial to characterize fluid flow and solute transport in the geological environments, and estimate the hydraulic properties of fractured-rock formations. Seismic radial anisotropy can be used as a strong attribute for forecasting fractures. The seismic radial anisotropy refers to the differences in the estimated S-wave velocities obtained from the Rayleigh and Love waves. We obtain the seismic radial anisotropy models of the subsurface for a fractured bedrock acquirer using the Multichannel Analysis of the Surface Waves (MASW) method. We show that the seismic radial anisotropy strongly correlates with subsurface fractures.

Presentation Date: Tuesday, October 16, 2018

Start Time: 1:50:00 PM

Location: Poster Station 18

Presentation Type: Poster