Time reverse modeling of microtremors: A potential method for hydrocarbon reservoir localization
Published in
SEG/San Antonio 2007 Annual Meeting
Publication date
26 September 2007
Abstract
We investigate the applicability of time reverse modeling on revealing the location of sources of continuous low-frequency signals like microtremors. In a first step we perform a numerical feasibility study. For this approach we generate different types of synthetic microtremor data by using a finite difference technique for seismic wave propagation. Time reverse modeling is able to localize all source types investigated. The main difference in accuracy depends on whether P- or S-waves are dominant. Possible examples of microtremors from a specific source location are hydrocarbon reservoirs. Hydrocarbon reservoirs can be the origin of a continuous source of low-frequency seismic waves. In a first example the application of time reverse modeling on real data is shown. We observe a pattern similar to a synthetic case which is dominated by P-waves.
