On The Fluid Dependence of Seismic Anisotropy: Post Biot-Gassmann

Date: 

Wednesday, June 7, 2017 - 14:30

Speaker: 

Dr Leon Thomsen, University of Houston

The University of Edinburgh Society of Exploration Geophysicists Student Chapter and Earth and Planetary Science Seminars are proud to host a presentation by the pre-eminent Dr Leon Thomsen on the 7th of June.

Dr Thomsen will be presenting: On The Fluid Dependence of Seismic Anisotropy: Post Biot-Gassmann.

Dr Leon Thomsen is a household name in seismic geophysics for his ground-breaking and seminal work in seismic anisotropy and other fields. Dr Thomsen is certainly one of the most influential geophysicists of all time, and holds numerous accolades, including the most cited paper in the history of GEOPHYSICS.

This is a free and open lecture, and all who wish to attend from any institution are encouraged to come.

Please find the presentation abstract below, and pass this information onto anyone who may be interested.

We hope to see you there!

 

Abstract

At seismic frequencies and below, the standard analysis of the fluid dependence of poro-elasticity is that due originally to Biot (1941) and Gassmann (1951). Gassmann also gave the fluid dependence of the tensors of  poro-elastic anisotropic compliance and stiffness. Thomsen (2012) and Collet and Gurevich (2014) applied this theory to the non-dimensional pararmeters of polar anisotropy, finding a particularly simple result for the anelliptic moveout parameter */e-d/*. Brown and Korringa (1975) had previously generalized the Biot-Gassmann results, showing that additional parameters were required, in the general case, to analyze the fluid dependence of poro-elasticity. When this generalization is applied to the polar anisotropic parameters, the previously cited simplicity of */e-d/*is no longer valid. This makes the analysis of fluid dependence of anisotropy, in a field context, highly problematic.

Event Contact Name: 

Florian Fusseis

Event Contact Email: 

florian.fusseis@ed.ac.uk