Title | Anisotropic tomography and uncertainty analysis with rock physics constraints: Green Canyon case study |
Publication Type | Conference Proceedings |
Year of Conference | 2012 |
Authors | Yang, Y, Osypov, K, Bachrach, R, Woodward, M, Zdraveva, O, Liu, Y, Fournier, A, You, Y |
Conference Name | SEG Technical Program Expanded Abstracts 2012 |
Publisher | Society of Exploration Geophysicists |
Abstract | Anisotropic model building with tomography is an underdetermined inverse problem. Simultaneously solving for P-wave velocity, epsilon, and delta is not stable when only surface seismic data is used. In this work, a model covariance function was built to constrain post-migration grid tomography using prior information from rock physics and structural dip. Quantitative uncertainty analysis was performed after tomography to measure the non-uniqueness of the problem. We present an example in the Green Canyon area of the Gulf of Mexico to demonstrate the effectiveness of the method. |
URL | http://library.seg.org/doi/abs/10.1190/segam2012-0916.1 |
DOI | 10.1190/segeab.3110.1190/segam2012-0916.1 |