时频谱分析在油气储层预测中的应用  

Application of time-frequency spectrum to oil and gas reservoir prediction

作　　者：王栋[1] 贺振华[2] 黄德济[2] 

机构地区：[1]成都理工大学信息工程学院 [2]"油气藏地质与开发工程"国家重点实验室.成都理工大学

出　　处：《天然气工业》2009年第4期36-38,133-134,共3页Natural Gas Industry

基　　金：国家高技术研究发展计划(863计划)(编号:2006AA0AA102-12);国家自然科学基金项目(编号:40774064)的资助

摘　　要：地震波在介质中传播由于受到各种因素的影响,能量、频率等方面都会衰减,尤其是在含流体储层介质中传播衰减会更加明显。为了能有效地提取出地震波含流体信息,利用时频谱分解方法的基本理论,以及其局部异常特征进行了储层预测。数值模拟验证了其可行性,最后利用实际地震资料进行处理,含油气性储层预测结果与实际钻井结果相吻合,证实了该方法的有效性,在地震数据处理中具有广阔的应用前景。Seismic wave will attenuate in energy and frequency by various factors when transmitted in a medium, which will be more obvious especially in the medium of reservoir containing fluid. In order to extract fluid information efficiently, using the basic theory of time frequency decomposition and its local characteristics, the method of time frequency decomposition is applied in attenuation by absorption to reservoir prediction. Not only is its applicability verified by numerical simulation but also its validity is proven when prediction result of gas-bearing area is coincident with that of actual drilling by dealing with actual data. So, this method has a wide prospect in seismic data processing.

关 键 词：地震波 吸收 衰减 时间 频率 储集层 预测 

分 类 号：P631.4[天文地球—地质矿产勘探]