地震沉积学探讨及应用

地震沉积学是在油气勘探开发的需要下产生的，具有鲜明的技术特色和良好的应用前景。文章阐述了地震沉积学的概念和学科特点，认为地震沉积学可以按研究尺度分为地震地貌学和储层地震学，从应用角度提出了地震沉积学的研究思路，并首次提出最小等时研究单元的概念，即三相（地震相，测井相，岩芯相）结合研究时井震统一的尺度，是沉积分析时一个最小的地质成图单元。文章选择鄂尔多斯盆地塔巴庙D气田上古生界岩性油气藏为例，阐述了地震沉积学分析技术在沉积相分析方面的应用方法，展示了地震沉积学研究技术在建立精细等时地层格架，岩相物理分析，多属性地震相分析等方面良好的学科优势。

Discussion and Application of Seismic Sedimentology

The seismic sedimentology is occurred under the oil-gas exploration development, has the bright technical characteristic and the better application prospect. The article elaborated the seismic sedimentology's concept and the discipline characteristic, thought the earthquake sedimentology may divide into the seismic geomorphology and the reservoir seismography according to the research criterion, propose research method from the application aspects. The article proposed the smallest isochronal strata unit concept at the first time, namely three-phase (seismic, oil well logging, core) unifies the unification when the research the well and seismic, is smallest geology chart unit with depositional analysis. A case study is present in this article, where we use seismic sedimentology analysis technique for sediment face analysis at lithology-reservoir in Palezoic erathem of D gas field in ERDOS Basin. The case study proves the favorable knowledge predominance in sediment face analysis and lithology-reservoir prediction by using seismic seidimentology face analysis technique.