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新近系是济阳坳陷最重要的含油气层系之一,石油储量主要集中在馆上段,为河流相沉积,岩性、岩相变化快,极易形成岩性油气藏或构造-岩性油藏,河流相储层的识别和描述精度对此类油藏的勘探起到了至关重要的作用。本文分析了河流相储层常规描述方法存在的不足,提出了基于频谱分解的新近系河流相储层精细描述技术方法,在埕岛-老河口地区应用取得成功,有效地指导了岩性油藏的勘探开发部署。
The Neogene is one of the most important petroleum-bearing reservoirs in the Jiyang Depression. The oil reserves are mainly concentrated in the Upper Member of the Upper Paleo-Upper Pleistocene, which is characterized by fluvial facies deposition, rapid lithology and facies facies alteration, lithology reservoirs or tectono-lithology The identification and description accuracy of reservoirs and fluvial reservoirs play a crucial role in the exploration of such reservoirs. This paper analyzes the shortcomings of the conventional description method for fluvial facies reservoirs, and proposes a method of fine description of fluvial facies reservoirs based on spectral decomposition. The successful application in Chengdao-Laohekou area has effectively guided the lithologic reservoir Exploration and development deployment.