频散AVO属性的影响因素分析  

Analysis of influencing factors of AVO attributes

作　　者：周倩[1,2] 周游[1,2] 刘金帅[1,2] 龚伟成[1,2] 周舟 

机构地区：[1]长江大学地球物理与石油资源学院,湖北武汉434000 [2]长江大学油气资源与勘探技术教育部重点实验室,湖北武汉430100

出　　处：《能源与环保》2017年第9期88-92,97,共6页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：中国石油科技创新基金项目资助(2015D-5006-0301)

摘　　要：频散AVO技术考虑了在饱含流体介质中会引起地震波产生频散和衰减,在实际的地震资料中某个频率的范围内也存在频散现象。结合频散介质模型并进行正演模拟分析,利用公式得出不同参考频率等参数对反演结果的影响,将该方法应用到垦西油田K71地区实际资料处理中,优选出频散AVO属性反演的参数选取,其实际结果与理论较吻合。The dispersion AVO technique takes into account the possibility of causing the seismic wave to produce dispersion and attenuation in a fluid medium,there is also a characteristic of dispersion in the range of a certain frequency in the actual seismic data. In this paper,combined with the dispersion medium model and forward modeling analysis,the influence of parameters such as different reference frequencies on the inversion results was obtained by using the inversion formula. This method was applied to the actual data processing of K71 in Kenxi Oilfield,the parameters of the AVO attribute inversion were selected,and the actual results were in agreement with the theory.

关 键 词：频散AVO技术 地震波衰减 正演模拟 参考频率 饱含流体 

分 类 号：P631.4[天文地球—地质矿产勘探]