地震勘探在基底断陷中的应用
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摘要
松辽盆地是我国重要的产油盆地之一,十屋断陷位于是该区域东南隆起区,是一个西断东超的单断式断陷盆地,它是勘探程度很高的地区,尤其针对中浅层进行了多年勘探和开发。但由于以往深层勘探工作量和研究投入很少,对于基底的情况不太清楚,因此需对本区深层的地质条件和勘探进行再评价再认识,尤其是T5反射层以下的基底起伏及岩性特征、构造特征断裂及构造演化进行再研究。本文以地震反射波结合钻探资料、重磁资料进行研究,把十屋断陷基底反射层以下为研究对象,对该区构造进行整体性分析,并重点运用地震相分类进行岩性研究和断裂研究。
Songliao basin is one of the important oil producing basins in China, Shiwu fault depression is located in the southeastern uplift of the region,is a west off east of mono faulted rift basin,it is areas of exploration degree is very high, especially in shallow layer of the years of exploration and development.But due to the previous deep exploration workload and research into a few,for the basement is not clear,therefore,it is necessary to re evaluation of re understanding of the deep geologic conditions and exploration,especially T5 reflection layer below the basement fluctuation and lithologic characteristics and structural features of the fault structure and tectonic evolution of.The seismic reflection wave combined drilling data,gravity and magnetic data research, the Shiwu fault depression of the reflection on the substrate layer below as the research object,on the structure of overall analysis, and focus on the use of seismic facies classification study of lithology and fracture.
Songliao basin is one of the important oil producing basins in China, Shiwu fault depression is located in the southeastern uplift of the region,is a west off east of mono faulted rift basin,it is areas of exploration degree is very high, especially in shallow layer of the years of exploration and development.But due to the previous deep exploration workload and research into a few,for the basement is not clear,therefore,it is necessary to re evaluation of re understanding of the deep geologic conditions and exploration,especially T5 reflection layer below the basement fluctuation and lithologic characteristics and structural features of the fault structure and tectonic evolution of.The seismic reflection wave combined drilling data,gravity and magnetic data research, the Shiwu fault depression of the reflection on the substrate layer below as the research object,on the structure of overall analysis, and focus on the use of seismic facies classification study of lithology and fracture.
引文
万天丰.中国大地构造学纲要[M].北京:地质出版社,2004
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