P and S wave anisotropy in fractured media: experimental research using synthetic samples

Ding, Pinbo; Di, Bangrang; Wang, Ding; Wei, Jianxin; Li, Xiangyang. 2014 P and S wave anisotropy in fractured media: experimental research using synthetic samples. Journal of Applied Geophysics, 109. 1-6. https://doi.org/10.1016/j.jappgeo.2014.07.005

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Official URL: http://dx.doi.org/10.1016/j.jappgeo.2014.07.005

Abstract/Summary

Rock physics experimental research on fractured media always uses synthetic samples with fractures, but most previous work has used samples of very different material and structure from natural rocks. This study has used a new construction method to build samples with controlled fractures, which have a more realistic mineral compensation and pore structure, similar to natural rocks. A set of samples with different fracture densities was built, and the P and S wave velocities were measured with 0.5 MHz transducers. The measured data were compared with Hudson model predicted results in order to calibrate the theoretical model. P and S wave anisotropies were compared and results demonstrate the accuracy of theoretical prediction of P and S wave velocities and anisotropies influenced by fracture density and fluids. Shear wave splitting shows a strong relationship to fracture density, and the SWS (%) is with around 100 times fracture density.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1016/j.jappgeo.2014.07.005
ISSN:	09269851
Date made live:	13 Mar 2015 14:10 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/510134

Item Type:

Publication - Article

Digital Object Identifier (DOI):

https://doi.org/10.1016/j.jappgeo.2014.07.005

ISSN:

09269851

Date made live:

13 Mar 2015 14:10 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/510134