Third-Order Elastic Moduli of the Dry and Water Saturated Rocks

Yanli Qu, Jinxia Liu, Zhiwen Cui, Weiguo Lv

2018

Abstract

On the basis of acoustoelastic theory of elastic solid, on two different rocks acoustic velocities were measured in dry state and water saturated state under uniaxial stress. Using the least-squares method and error analysis, we obtained the third-order elastic moduli of dry rocks and saturated rocks. Then, by analogy with Biot theory, we introduced the seepage strain to modify the acoustoelastic theory in the porous media, and established an equivalent model of acoustoelastic theory in porous media. Using the above method, we acquired the high precision third-order elastic moduli of fluid-solid coupling. By comparing the experiment values with theoretical values of the acoustic velocities in rocks, the experiment values and theoretical values show good agreement, and the feasibility of the equivalent model has been proved.

Paper Citation

in Harvard Style

Qu Y., Liu J., Cui Z. and Lv W. (2018). Third-Order Elastic Moduli of the Dry and Water Saturated Rocks.In Proceedings of the International Workshop on Environment and Geoscience - Volume 1: IWEG, ISBN 978-989-758-342-1, pages 428-433. DOI: 10.5220/0007431404280433

in Bibtex Style

@conference{iweg18,
author={Yanli Qu and Jinxia Liu and Zhiwen Cui and Weiguo Lv},
title={Third-Order Elastic Moduli of the Dry and Water Saturated Rocks},
booktitle={Proceedings of the International Workshop on Environment and Geoscience - Volume 1: IWEG,},
year={2018},
pages={428-433},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007431404280433},
isbn={978-989-758-342-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the International Workshop on Environment and Geoscience - Volume 1: IWEG,
TI - Third-Order Elastic Moduli of the Dry and Water Saturated Rocks
SN - 978-989-758-342-1
AU - Qu Y.
AU - Liu J.
AU - Cui Z.
AU - Lv W.
PY - 2018
SP - 428
EP - 433
DO - 10.5220/0007431404280433