Velocity-permeability relations within hydraulic units
Velocity-permeability relations within hydraulic units
复制标题
液压装置内的速度-渗透率关系
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
M. Prasad
中科院分区：
文献类型：
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作者：
M. Prasad
地震速度和渗透率之间的关系一直难以建立。我表明，通过分组和分类岩石到水力单元，我们可以建立速度和渗透率之间的关系。水力单位是根据测量的孔隙度和渗透率值计算的。在每个水力单元内，流速和渗透率之间的相关性是显著的（相关系数R2在0.65-0.87的范围内）。这种相关性是水力单元内孔隙度和渗透率之间匹配的延伸。我展示了如何压实和胶结历史的沉积物可以影响其物理性质，如孔隙度和渗透率和地震特性。用毕奥模型对实测速度数据进行了进一步的近似。速度-渗透率关系和建模结果证明了实验室测量的大数据集。计算值与实测值吻合较好，表明该关系式可用于实际工程。
Relationships between seismic velocity and permeability have been difficult to establish. I show that by grouping and sorting rocks into hydraulic units, we can establish relationships between velocity and permeability. The hydraulic units are calculated from measured porosity and permeability values. Correlation between velocity and permeability is significant within each hydraulic unit (the correlation coefficient, R2, lies in the range 0.65–0.87). This correlation is an extension of the match between porosity and permeability within a hydraulic unit. I show how the compaction and cementation history of a sediment can have effects on its physical properties such as porosity and permeability and on its seismic properties. The measured velocity data are further approximated with the Biot model. The velocity‐permeability relation and modeling results are demonstrated for a large data set of laboratory measurements. The good match between calculated and measured data demonstrates that this relation can be u...