Biot理论应用于地震勘探的探索

Biot theory in application to seismic prospecting

中国海洋石油南海西部公司计算中心, 湛江524057

Computer Center, Western Oil Corporation of South China Sea, Zhanjiang 524057

本文根据弹性波的波动特性, 探索引用Biot理论的基本观点描述实测地震记录, 初步建立了一套利用地震数据计算地层弹性参数的数学模型, 并计算由震源引起的地震应力分布。地震应力信息反映地层沉积结构的某些特征, 与地层的物性及所含流体有关, 对研究储层参数有实际意义, 说明Biot理论在地震勘探与开发中有应用的潜力。

This paper tries using the Biot theory to describe seismograms based on the characteristics of wave. For this end, a set of mathematical models is established for estimating elastic parameters of strata and seismic stress distributions caused by different sources on the basis of seismic data acquired. Having relations with the physical properties of strata and the fluid contained, the seismic stress information anyhow reflects certain features about the sedimentary structure of strata and is thus in essential to the parameter research for reservoirs. This shows the potential of the Biot theory in applieation to seismic prospecting and development.