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Assessing Temporal Variations in Linkage between Supra- and Sub-Salt Faulting in the Weymouth Anticline, UKNormal access

Authors: A. Bladon, F. Marks, M. Valcarcel, A. Vaughan, C. Reilly and F. McClean
Event name: 81st EAGE Conference and Exhibition 2019
Session: Basin Evolution: Structure, Sedimentation and Economic Geology I
Publication date: 03 June 2019
DOI: 10.3997/2214-4609.201900920
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1.08Mb )
Price: € 20

Here we show how validation and restoration workflows can simplify the interpretation of polyphase, salt-influenced structures. We combine multiple structural analysis techniques to assess the evolution of the Weymouth Anticline, situated in the Channel Basin, UK. The application of well-established techniques, traditionally applied to areas of relatively simple deformation (e.g. single-phase), is expanded to assist interpretation and assess structural evolution in more complex salt-influenced settings. Specifically, we use these techniques to assess temporal changes in the interaction of a supra- and sub-salt normal fault system where understanding the associated reservoir units can be problematic. The approach is applicable to global salt provinces and can provide critical information for exploration and field development (e.g. subsidence history, migration pathways, and strain distribution).

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