Seismic wave field characteristics and frequency distributionin fluid-saturated media

YANG Guochen; YU Bingsong

doi:10.3969/j.issn.1673-8926.2008.03.015

Lithologic Reservoirs >

2008 , Vol. 20 >Issue 3: 74 - 78

DOI: https://doi.org/10.3969/j.issn.1673-8926.2008.03.015

Seismic wave field characteristics and frequency distributionin fluid-saturated media

YANG Guochen ,
YU Bingsong

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State Key Laboratory ofOil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China

Online published: 2008-09-15

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Abstract

When the seismic wave propagates in fluid-saturated stratum, its wave field changes compared with the case of none fluid, because of the influence of resistance such as the viscosity and diffusion of the fluid. Based on the onedimensional diffusive and viscous wave equation, two-dimensional diffusive and viscous wave equation is derived. The characteristics and rule of the change of seismic wave field are analyzed by numerical simulation, which provide guidance and criterion for the reservoir identification and prediction. The result shows that viscosity coefficient mainly affects the frequency distribution of seismic wave, and diffusion coefficient mainly controls the attenuation of seismic wave with no influence on the frequency distribution.

Key words： subtle hydrocarbon traps; genetic type; classification; exploration theory; exploration techniques; research status

Cite this article

YANG Guochen , YU Bingsong . Seismic wave field characteristics and frequency distributionin fluid-saturated media[J]. Lithologic Reservoirs, 2008 , 20(3) : 74 -78 . DOI: 10.3969/j.issn.1673-8926.2008.03.015

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