摘要
本文用数值计算方法研究了流体饱和多孔介质中声传播的Biot理论。分别在80Hz、20kHz、500kHz频率下计算了多孔介质的孔隙度、渗透率、流体粘度和孔径大小对三种体声波波速和衰减的影响。计算结果表明,各种波的波速均随孔隙度有较大变化。渗透率、流体粘度和孔径的变化对声速几乎无影响。但当声波频率为80Hz时,除孔隙度的变化对声波的性质有影响外,其它参数对声速和声衰减几乎无影响。有些结果与实验室和现场测量结果相一致。
This paper presents the numerical investigation of Biot theory on acoustic wave propagation in fluid saturated porous media. The effects of porosity, permeability, fluid viscosity and pore size of porous media on the velocity and attenuation of three kinds of bulk waves are calculated when the frequency is equal to 80Hz, 20kHz, and 500kHz respsctively. Some calculation results arc in agreenment with laboratory and field measurements.The present study contributes to a better understanding and application of Biot theory.
出处
《石油大学学报（自然科学版）》
CSCD
1990年第2期126-132,共7页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
Boit理论
多孔介质
声速
Parameters of Porous Medium
Acoustic Velosity
Acoustic attenuation
Biot theory
