Title | Dirty salt velocity model building with constrained iterative tomography: Methodology and application |
Publication Type | Conference Proceedings |
Year of Conference | 2013 |
Authors | Helgesen, HKristian, Liu, J, Tang, J, Salama, A, Pepper, R, Madden, S, Woodward, M, Klebleeva, A, Dorrington, EFrugier, Sabaa, AEL, Yarman, CEvren, Fournier, A, Yang, Y, Osypov, KS |
Conference Name | SEG Technical Program Expanded Abstracts 2013 |
Publisher | Society of Exploration Geophysicists |
Abstract | Subsalt imaging has been a challenge for Gulf of Mexico (GoM) exploration, mostly due to the complexity of salt geometry and high salt-sediment velocity contrast. In addition to these, the presence of inclusions within the salt, also referred to as dirty salt, presents an additional significant challenge in subsalt imaging. Following a systematic study with synthetic datasets, we propose a new method for automatically determining the dirty salt geometry, and a further consolidated constrained iterative dirty salt velocity model building flow. We applied this workflow on a real GoM dataset and demonstrate its effectiveness by presenting an improved subsalt image. |
URL | http://library.seg.org/doi/abs/10.1190/segam2013-1243.1 |
DOI | 10.1190/segeab.3210.1190/segam2013-1243.1 |