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基于地震属性的地震相分析思路
引用本文:张林科,覃丽君,张国焘,孙小琴. 基于地震属性的地震相分析思路[J]. 工程地球物理学报, 2010, 7(6): 694-698. DOI: 10.3969/j.issn.1672-7940.2010.06.009
作者姓名:张林科  覃丽君  张国焘  孙小琴
作者单位:1. 油气资源与勘探技术教育部重点实验室,长江大学,荆州,434023
2. 长江大学,地球科学学院剩余油研究组,荆州,434023
3. 中国石油化工股份有限公司,华东分公司,南京,210011
摘    要:重点阐述了基于地震属性的地震相分析方法。了解区域地质概况、沉积背景,选取完整的沉积体系;选取合适的时窗沿层提取地震属性(RMS,平均瞬时频率、有效带宽),利用RMS属性识别沉积体,平均瞬时频率判断物源方向,有效带宽推测沉积环境及地层的均质性;综合考虑最终确定沉积体的地震相特征,绘制该层段的地震相平面图;最后将地震相转相为沉积相。利用该方法对尼日尔三角洲S工区进行地震相分析,识别出高弯度水道、水道-朵叶复合体、末端朵叶等沉积体的典型地震相特征,取得很好的效果,显示该方法具有良好的应用前景。

关 键 词:地震相  均方根属性  平均瞬时频率  有效带宽  高弯度水道

On Seismic Facies Analysis Based on Seismic Attributes
Zhang Linke,Qin Lijun,Zhang Guotao,Sun Xiaoqin. On Seismic Facies Analysis Based on Seismic Attributes[J]. Chinese Journal of Engineering Geophysics, 2010, 7(6): 694-698. DOI: 10.3969/j.issn.1672-7940.2010.06.009
Authors:Zhang Linke  Qin Lijun  Zhang Guotao  Sun Xiaoqin
Affiliation:Zhang Linke1,Qin Lijun1,Zhang Guotao2,Sun Xiaoqin3(1.Institute of Geophysics and Petroleum Resources,Yangtze University,Jingzhou 434023,China,2.Remaining Resource Research Group of Geosciences College,3.East China Branch Company,SINOPEC,Nanjing 210011,China)
Abstract:In this paper,the seismic facies analysis method based on seismic attributes is mainly described.Firstly,the regional geological survey and sedimentary background are given.Then the method is introduced as this: the complete sedimentary system is selected and the seismic attributes(RMS,Average Instantaneous Frequency,Effective Bandwidth,etc)are extracted from the appropriate time-window along an event;the attribute of RMS amplitude is used to identify the sedimentary bodies;average instantaneous frequency i...
Keywords:seismic facies  RMS amplitude  the average instantaneous frequency  effective bandwidth  high-sinuosity channel  
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