Schlumberger

Technical Paper: Extraction of Geotechnical Attributes from Seismic Data: Towards a Quantitative Approach

Society: SBGF
Paper Number: 2951
Presentation Date: 2011
 

Abstract

This paper describes a method to obtain geotechnical attributes through empirical relations established between geotechnical parameters from field surveys and seismic inversion derived elastic moduli. Thus a quantitative rather than former qualitative approach (Sobreira et al. (2009, 2010 a, 2010 b, 2010 c) is pursued so that one can reproduce the expected geotechnical behavior anywhere within a given volume (3D) or vertical section (2D) of seismically derived elastic moduli.

The method was tested in the same areas the original qualitative work was performed, that is, Marlim Voador and Albacora fields’ regions, in Campos Basin, Southeastern Brazilian Continental Margin. Geotechnical logs were predicted in arbitrary locations within the seismic volume or section. The correlation of these so-called pseudo-logs with the real ones has proven satisfactory enough, since at least the main natural geotechnical contrasts could be reproduced.

Technical Paper presented at the 12th International Congress of the Brazilian Geophysical Society, held in Rio de Janeiro, Brazil, August 15-18, 2011.

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