用测井曲线自动划分层序地层研究

RESEARCH ON THE DIVISION OF SEQUENCE STRATIGRAPHY AUTOMATICALLY USING WELL LOGS

无论在基础地质研究还是在指导沉积矿产资源勘查中 ,层序地层划分都具有重要的作用。利用测井资料进行人工层序地层划分是一项重要工作 ,但效率较低。根据层序地层划分的原则 ,采用频谱分析和砂泥岩比值方法设计了层序地层划分的自动算法 ,在济阳坳陷部分区块进行了应用 ,取得了较好的效果 ,为层序地层划分提供了有效的工具。

The sequence stratigraphy stratification is the important work in the fundamental geological research and sedimentary mineral resource exploration. Well logs is essential for doing high resolution sequence stratigraphical study, but this work has usually been done manually and has a low efficiency. In this paper one automatic method is provided which uses the well logs frequency characters and the sand-shale ratio. Application in the Jiyang Sag of China demonstrates it has good effect and high efficiency, and is a good assistant in the sequence stratigraphy study.