离散介质中地震波传播的本构问题

於文辉; 张丽琴; 王家映; 周玉琦

Volume 28 Issue 3

May 2003

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Article Navigation > Earth Science > 2003 > 28(3): 315-322

WU Wen-hui, ZHANG Li-qin, WANG Jia-ying, ZHOU Yu-qi, 2003. Constitutive Problem for Seismic Wave Propagation in Discrete Media. Earth Science, 28(3): 315-322.

Citation:

WU Wen-hui, ZHANG Li-qin, WANG Jia-ying, ZHOU Yu-qi, 2003. Constitutive Problem for Seismic Wave Propagation in Discrete Media. Earth Science, 28(3): 315-322.

WU Wen-hui, ZHANG Li-qin, WANG Jia-ying, ZHOU Yu-qi, 2003. Constitutive Problem for Seismic Wave Propagation in Discrete Media. Earth Science, 28(3): 315-322.

Citation:

WU Wen-hui, ZHANG Li-qin, WANG Jia-ying, ZHOU Yu-qi, 2003. Constitutive Problem for Seismic Wave Propagation in Discrete Media. Earth Science, 28(3): 315-322.

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Constitutive Problem for Seismic Wave Propagation in Discrete Media

1.
Department of Geophysics, China University of Geosciences, Wuhan 430074, China
2.
China New Star Petroleum Company, Beijing 100083, China

Received Date: 2002-10-08
Publish Date: 2003-05-25

Abstract

Abstract

The real geological medium is extremely complicated. Elastic wave theory based on homogeneous and continuous medium model may lead to incorrect explanation of seismic response to geological structure and may even lead to erroneous explanation. Such useful seismic information may be eliminated because it is considered as the noise without an accurate constitutive equation closer to true medium. Natural rock-soil media consist of large porous blocks as a dispersive medium with various gaps, fractures and joint contact surfaces. Hence, that kind of medium is a mixed field of dispersive porous blocks and named "discrete media" by the authors. Among the blocks, pore fluid could run through along all kinds of gaps or surfaces. Also, in the porous blocks, the oil could be filled in pores. Therefore, a global mathematical model of constitutive relation is derived in this paper to simulate the wave propagation in the discrete media.
- geological medium,
- continuous medium,
- discrete media,
- elastic wave,
- constitutive relation

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References

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