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Integrated Approach to 3D Near-surface CharacterizationNormal access

Authors: A. Laake, C. Strobbia and A. Cutts
Event name: 70th EAGE Conference and Exhibition incorporating SPE EUROPEC 2008
Session: Near Surface Effects in Seismic for E&P (EAGE)
Publication date: 09 June 2008
DOI: 10.3997/2214-4609.20147642
Organisations: SPE, EAGE
Language: English
Info: Extended abstract, PDF ( 3.89Mb )
Price: € 20

Summary:
An integrated approach to 3D geologic and elastic characterization of the near surface is presented. The integration of high spatial resolution, relatively low-confidence remote sensing, and geologic data with sparse spatial resolution, high-confidence geophysical data in a GIS database allows for cross-calibration of both types of datasets, thus providing calibrated near-surface models. The method comprises the generation of a 3D near-surface geologic model, from which the input for a 3D elastic model is obtained. The elastic model is then calibrated with seismic data to provide the final 3D near-surface model. The method has been demonstrated at two case histories covering geomorphological features typical for desert areas in North Africa and the Middle East.


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