方差体裂缝检测技术在川东南官渡地区的应用  

Application of variance body fracture detection technology in Guandu area of southeast of Sichuan

作　　者：萧惠中 周大森[1,2] 

机构地区：[1]国土资源部海底矿产资源重点实验室,广东广州510075 [2]广州海洋地质调查局,广东广州510760

出　　处：《油气地球物理》2017年第4期21-25,共5页Petroleum Geophysics

基　　金：国土资源部海底矿产资源重点实验室项目(GZH201200508)资助

摘　　要：裂缝是影响川东南官渡地区储层产能的重要因素。在对比相干体和方差体两种裂缝检测技术的处理结果后,选择了效果更好的方差体技术应用于该地区。结果表明,方差体裂缝检测技术能够压制地震数据体的横向连续性,并突出其横向的不连续性,常常用于细致的断层解释、砂体及裂缝的检测和某些复杂地质体的识别,而局部这些细微的地质异常特征往往可以指示可能的油气圈闭。The fracture is an important factor affecting reservoir productivity in Guandu area of southeast of Sichuan. The better variance body technique with which the better result are obtained is selected to detect the fracture in this area after compared the result of the data processed by the coherence body with that by the variance body. The lateral continuity of the seismic data volume could be suppressed by the variance body fracture detection technique and its lateral discontinuity is highlighted. This technique is often used for detailed fault interpretation, sand body and fracture detection and the recognition of some complex geological body, the characteristics of the local subtle geological anomaly are often taken as the indicators of the existence of hydrocarbon trap.

关 键 词：裂缝检测 相干体技术 方差体技术 川东南官渡地区 

分 类 号：P315.73[天文地球—地震学]