摘要
测井约束地震反演是研究隐蔽油气藏的重要技术之一。以街202块为例,在地质储层特征研究的基础上,开展了以数据分析与处理为基础、子波提取与精细标定为保障、波阻抗模型为核心的测井约束地震反演技术研究,在多井约束条件下,对有利砂体的展布、厚度、位置、成藏类型进行分析,直观地刻画了岩性的空间分布规律,为该区的岩性圈闭识别和井位部署提供重要依据。
Log-constrained seismic inversion is one of the important technologies for research on subtle reservoir.This paper discussed log-constrained seismic inversion of J202 Block.On the base of research on the characteristics of reservoir geology,the flow of log-constrained seismic inversion includes data analysis,wavelet extraction and detailed calibration,and wave impedance model building.Under the constraint of well control,we determined the distribution,thickness,and trap types of favorable sand bodies.The results provide valuable evidence for identification of lithological traps and well deployment.
出处
《勘探地球物理进展》
2009年第4期291-296,共6页
Progress in Exploration Geophysics
关键词
地震资料
主频
合成记录
波阻抗
测井约束反演
seismic data
dominant frequency
synthetic seismogram
wave impedance
log-constrained seismic inversion
