【摘要】 由于岩性油藏通常以较为复杂的地层组合形式出现,因此在砂泥岩互层分界面上的地震反射波都表现为相对较弱的振幅特征,而且在地震剖面上识别相应的弱反射较为困难。本文通过对砂体模型反射系数的计算和不同量级反射系数合成地震记录的分析,以及大量井震资料的统计分析,进行了岩性油藏地震弱反射信号划分与弱反射岩性油藏分类。依据分类结果可为进一步开展岩性油藏的精细描述、储层预测提供基础资料和实践指导。更多还原

【Abstract】 Lithological reservoir usually appears in a form of complex formation combination,and seismic reflections on interfaces between sandstone and mudstone are relatively weak.So it is difficult to identify these interfaces on seismic sections.Based on calculations of sand model reflection coefficients,analysis of synthetic seismogram with different magnitude,and statistical analysis of well and seismic data,we classify seismic weak reflections on lithological reservoirs.The classification can provide basic data and practical guidance for further reservoir prediction and characterization.更多还原