摘要
在我国松辽盆地的大部分地区，目前勘探的主要目的层多以薄互层为特征，砂体类型以三角洲分流河道砂为主，横向变化快，连通性差，厚度为2～5m，尤其在扶杨油层，河道改道频繁，地层对比特征不明显，缺乏明显的对比标志，在地震上表现为剖面反射能量弱、连续性差、波形变化大、调谐效应严重，同时断层的发育和构造起伏的变化破坏了河道的完整性，这些诸多因素给储层预测工作增加了难度。通过理论研究和大量的实际工作证实，合理使用现有地震资料，在储层精细标定基础上，利用地震储层反演技术、全三维可视化解释技术可以很好地对主力河道进行识别和对有利储层进行预测。
In the most areas of SongLiao Basin in China, the primary target strata prospected at present is characterized as thin interbed, and the sandstone type is mainly the delta branch channel sand varying fast, having poor continuity and being 2~ 5 meters thick. Specially at FuYang oil layer, the channel changes frequently, the stratum contrast characters are not clear and lack of distinct contrast marks, so it is indicated that the reflection energy of these sections is weak, the continuity is poor, the wave wiggle changes a little, the tuning effect is heavy on seismic section, and the development of the faults and the rolling changes of the structure destroyed the completeness of the channel. All those factors increased the difficulties for reservoir prediction. By a lot of theory studies and practical work, it has been proved that applying seismic reservoir inversion techniques and full 3D visualization interpretation techniques can recognize the main channels and predict favorable reservoir more easily depending on the reasonable use of the existing seismic data and the accurate demarcations of reservoir.
出处
《岩性油气藏》
CSCD
2007年第1期92-95,共4页
Lithologic Reservoirs
关键词
松辽盆地
薄互层
河道砂岩
储层预测
SongLiao Basin
thin interbed
channel sand
reservoir prediction
