地震剖面上的断层分析及相关意义  

Fault analysis and fault correlation in seismic section

作　　者：梁顺军[1] 

机构地区：[1]塔里木石油勘探开发指挥部研究中心

出　　处：《石油地球物理勘探》1999年第5期560-568,共9页Oil Geophysical Prospecting

摘　　要：本文根据实际资料，从地震资料采集、处理、解释几方面分析了地震剖面断层的形成原因，指出根据地震剖面解释的断层具有不确定性、多解性和真伪性，相应地，通过剖面解释断层所得到的地质断层解释也具备这些特点。文中通过正演模型证实了地震剖面断层存在的不确定性、多解性和真伪性。由此可见，地震剖面断层与地质断层既有区别又有联系。在应用地震剖面进行构造、沉积相、油源解释和圈闭评价时，应该正确理解解释地震剖面断层与地质断层之间的关系，否则会得出错误的结论。The occurrence cause of fault in seismic section is analysed in the aspects of data acquisition, data processing and data interpretation. The author points out that the fault interpretation in seismic section may be indeterminate, false and soluble in several ways; and so is the geologic fault interpretation which is based on seismic fault interpretation. Forward modeling has proved that fault interpretation in seismic section may be indeterminate, false and soluble in several ways. It can be seen from these that the faults in seismic section are different but correlative to the geologic faults. Applying seismic sections to geologic structure interpretation, sedimentary facies interpretation, oil sources interpretation and hydrocarbon trap evaluation, geologists must know the relation between seismic fault interpretation and geologic fault interpretation, otherwise they will draw mistaken conclusions.

关 键 词：地震剖面 地震数据处理 断层 地震解释 地震勘探 

分 类 号：P631.443[天文地球—地质矿产勘探]