摘要
断层识别是三维地震资料精细解释的关键,断层的解释精度不仅关系到断裂系统整体组合的合理性、层位解释的准确度,也关系到对油气成藏规律的正确认识。构造滤波分析技术是一种将不同期次或同一期次不同方向形变特征从目前的叠加特征中分离出来的统计数学方法,它不仅可以用于研究构造变形的历史,而且可以用于评价构造缝的分布。为了提高地震数据的信噪比,使地震数据同相轴的连续和间断特征更明显,运用构造滤波分析技术识别隐蔽断层。
Fault recognition is the key to the precise 3Dseismic data interpretation.The accuracy of interpretation of fault fracture system is not only related to the accuracy of the layers of interpretation,but also to the correct understanding of the oil and gas accumulation.Structure-oriented filtering is a statistical mathematics method,which can be separated from deformation characteristics in different periods or different orientation in the same period from the current superposition characteristics.It can be used not only to study the structural deformation history,but also can be used to evaluate the distribution of tectonic joints.In order to improve the signal to noise ratio of seismic data,characteristics of con-tinuous and discontinuous phase axis of seismic data can be more visible,when using structure-oriented filtering to identify hidden fault.
出处
《工程地球物理学报》
2014年第4期446-450,共5页
Chinese Journal of Engineering Geophysics
基金
国家自然科学基金项目(编号:40930424)资助
关键词
地震勘探
构造导向滤波
相干属性
断层圈闭
seismic exploration
structure-oriented filtering
coherence properties
fault trap
