基于三维地震数据的断层空间展布特征提取

Fault Spatial Distribution Feature Extraction Based on 3D Seismic Data

随着近年来社会和工业的发展进程不断加快,人们对石油资源的需求日趋扩大,断层快速解译已经迫在眉睫。基于三维速度结构数据利用研究人员先验知识和拓扑关系编写算法实现对断层空间展布特征的提取,能够减少人工解译时间,提取断层信息,实现对其空间展布特征的表达。以华北克拉通中部山西北部地区恒山北麓断裂带为研究区开展相关研究,结果表明,基于二维断层属性信息,结合P波速度结构,利用开源平台Paraview进行三维地质建模及三维断层可视化,并对断层三维速度结构进行分析,实现对断层空间展布特征的表达,为断层识别及构建地质三维模型提供一种新思路。

With the accelerating development of society and industry in recent years,people's demand for oil resources is increasing,and rapid interpretation of faults is imminent.Based on the three-dimensional velocity structure data,the researchers'prior knowledge and topological relationship algorithm are used to extract the spatial distribution characteristics of faults,which can reduce the manual interpretation time,extract fault information and realize the expression of its spatial distribution characteristics.Taking the north foot of Hengshan fault zone in the northwest of the central mountain of North China Craton as the research area,the results show that based on the two-dimensional fault attribute information,combined with the P wave velocity structure,the three-dimensional geological modeling and three-dimensional fault visualization are carried out by using the open source platform Paraview,and the three-dimensional velocity structure of the fault is analyzed to realize the expression of the spatial distribution characteristics of the fault,which provides a new idea for fault identification and construction of geological three-dimensional model.