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2-D and 3-D Synthetic Data for Evaluating Strategies for Sub-Basalt Exploration
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 67th EAGE Conference & Exhibition, Jun 2005, cp-1-00002
Abstract
G034 Abstract 1 2D and 3D synthetic data for evaluating strategies for subbasalt exploration Both 2D and 3D synthetic geophysical datasets have been computed for evaluation of subbasalt processing inversion and interpretation strategies. The data include raw seismic shot gathers potential field and MT data. This presentation will introduce the datasets and show that not only can modelling produce challenging constrained data but also give insight into the sensitivity of the model to differing geophysical methods. Key results are an understanding of: how a seismic wave interacts with the basalt the sensitivity of potential field and MT data and processing/intergration strategies that can recover the primary information. Introduction R. Hobbs 1 A. Cherrett 2 M. Jegen 3 N. Harrop 4 F. Martini 5 and the SIMBA group 6 1 Department of Earth Sciences University of Durham South Road Durham DH1 3LE United Kindom 2 Total E&P UK PLC 3 Eidgenössische Technische Hochschule Zürich 4 ARKeX Ltd 5 University College Dublin 6 Total E&P UK PLC Institute Français du Pétrole University of Durham University of Ireland ARK Geophysics Ltd Université de Bretagne Occidentale University of Cambridge Norsk Hydro ASA Subbasalt exploration is hampered by a lack of confidence in the interpretation of the geophysical data. In areas with substantial basalt cover conventional seismic imaging fails to reveal enough information about the subbasalt structures. The images show disjoint reflectivity with