基于波形分类技术预测河流相砂体叠置模式  

Application of waveform classification in the prediction of fluvial facies interbedded sandstone reservoirs

作　　者：井涌泉 范洪军 陈飞 范廷恩 胡光义 陈开远[2] 

机构地区：[1]中海油研究总院,北京100027 [2]中国地质大学(北京),北京100083

出　　处：《地球物理学进展》2014年第3期1163-1167,共5页Progress in Geophysics

基　　金：国家科技重大专项"海上开发地震关键技术及应用研究"项目(2011ZX05024-001)资助

摘　　要：受限于地震资料分辨率,基于地震资料描述河流相单期薄砂体储层存在不确定性,一个波形相位多是由两期或者多期砂体反射干涉形成.因此,本文探讨了应用精细波形分类技术识别砂体叠置模式的方法.通过对比分析正演模拟地震波形与井震标定合成记录,重点研究不同砂体叠置情况下的地震波形特征规律,分析波形特征的地质意义,建立叠置砂体与地震之间的响应模式,确定叠置砂体地震波形的精细分类,最终根据不同波形空间展布特征,对叠置砂体的展布特征进行了有效的识别预测.Subjected to the sandstone reservoirs interbedded complicated,there is uncertainty in resolve a single channel sandstone exactly limited by the seismic data resolution,and usually a seismic waveform always is composited by two or more interference of channel sandstones.For that reason,the paper discussed the method to identify the intervedded sandstone by using waveform classification. Through comparing modeling seismic response with synthetic seismogram of well-to-seismic calibration,discussed seismic response characteristics of various interbedded sandtone,analyzed geological mechanization,established the seismic response mode between seismic and interbedded sandstone,then determined the classification,finally,based on the distribution of seismic response,the distribution of interbedded sandstone reservoirs was identified and predicted effectively.

关 键 词：波形分类 河流相 砂体叠置模式 正演模拟 地震波形特征 

分 类 号：P631[天文地球—地质矿产勘探]