地震沉积学在阜东地区沉积体系分析中的应用
网络出版日期: 2014-06-06
Application of seismic sedimentology to the analysis of sedimentary system in Fudong area
Online published: 2014-06-06
在与传统沉积体系分析方法进行对比的基础上,提出了利用地震沉积学方法进行沉积体系分析。 在 对准噶尔盆地阜东地区层序地层划分的基础上,开展 90° 相位转换、地震属性分析、地层切片提取与分析 等,最后通过岩心、露头、测井与录井等资料,并参考现代沉积模式进行地震沉积相分析,建立了地震属性 平面特征与沉积相间的对应关系,并对沉积体系进行了分析。 研究认为,地震沉积学沉积体系分析方法 以层序地层格架为基础,保证了地层对比的等时性;充分利用了地震资料的横向分辨率,可识别地震垂向 分辨率难以识别的薄层砂体;将地震属性分析与沉积学相结合,可预测砂体空间展布及其演化特征。
瞿建华 , 王泽胜 , 任本兵 , 白雨 , 王斌 . 地震沉积学在阜东地区沉积体系分析中的应用[J]. 岩性油气藏, 2014 , 26(3) : 84 -88 . DOI: 10.3969/j.issn.1673-8926.2014.03.014
Based on the comparison of traditional sedimentary system analysis methods, this paper proposed seismic sedimentology method to carry out sedimentary system analysis. On the basis of sequence stratigraphic classification, this paper carried out seismic data to 90° phase conversion, 3D seismic attribute analysis, extraction and analysis of stratigraphic section, established the corresponding relationship between seismic attribute characteristics and sedimentary facies by calibrating the seismic sedimentary facies through the observation of core and outcrops, well logging and modern sedimentary analysis, and analyzed the sedimentary system. It is considered that the seismic sedimentology sedimentary system analysis method is based on the sequence stratigraphic framework, and it can ensure the isochronous stratigraphic correlation, make full use of the lateral seismic resolution to recognize the thin layer of sand body which is difficult for the seismic vertical resolution, and combined the seismic attribute processing with sedimentology, it can predict sand body space distribution and evolution characteristics.
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