Print Email Facebook Twitter Converted waves in shallow marine environments: Modelling and field experiments Title Converted waves in shallow marine environments: Modelling and field experiments Author El Allouche, N. Contributor Wapenaar, C.P.A. (promotor) Simons, D.G. (promotor) Drijkoningen, G.G. (promotor) Faculty Civil Engineering and Geosciences Department Geotechnology Date 2011-10-27 Abstract The shallow marine subsurface is explored for various engineering purposes e.g. constructing installations and platforms, laying pipelines and dredging for sand. Knowledge of the soil properties is essential to minimize the risks involved with these offshore activities. Energy resources in the form of gas hydrates and hydrocarbon reservoirs are often found a few hundred meters to a few kilometers below the seafloor. Accurate estimates of the sediments properties at shallow depths may considerably improve the image at the target depth. Seismic waves converted from compressional (P-) to shear (S-) mode can be useful to retrieve these properties. The acquisition and processing of converted-wave data in shallow marine environments remains challenging. This is due to the high velocity ratio between the P- and the S-wave in the sediments. In this thesis, the acquisition and processing of converted waves is addressed through field experiments and synthetic modelling. Subject Geophysics To reference this document use: http://resolver.tudelft.nl/uuid:48d93e30-dd74-4abd-a2c4-7f90f1440d13 Embargo date 2011-12-14 ISBN 9789088913341 Part of collection Institutional Repository Document type doctoral thesis Rights (c) 2011 El Allouche, N. Files PDF thesis_allouche.pdf 80.6 MB Close viewer /islandora/object/uuid:48d93e30-dd74-4abd-a2c4-7f90f1440d13/datastream/OBJ/view