Title

Identification of near-surface fractures via seismic-radial anisotropy

Document Type

Article

Publication Date

8-2018

Department

Department of Geological and Mining Engineering and Sciences

Abstract

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.

Publication Title

SEG Technical Program Expanded Abstracts 2018

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