西南石油大学学报（自然科学版）2025，Vol.47Issue(3)：37-47,11.DOI:10.11885/j.issn.1674-5086.2022.03.08.01
径向基多属性融合在滩坝砂体刻画中的应用
Application of Radial Basis Function Multi-attribute Fusion Technology in the Study of Beach-bar Sand Body Distribution Law
李斌 1梁宇 2赵虎 1杨宏伟 3魏国华3
作者信息
- 1. 西南石油大学地球科学与技术学院,四川成都 610500||油气藏地质及开发工程全国重点实验室·西南石油大学,四川成都 610500
- 2. 西南石油大学地球科学与技术学院,四川成都 610500
- 3. 中国石化胜利油田分公司物探研究院,山东东营 257001
- 折叠
摘要
Abstract
Aiming at the difficulty in effective description with the existing seismic resolution due to thin microfacies sand body of the fast changing facies and reservoir heterogeneity,we take the upper Es4 sub-member of the Boxing Sag of the Daluhu Oilfield as an example,and use the regional isochronous interface T7 under constraints,chronostratigraphic slices to extract typical seismic amplitude attributes,and clarify the response characteristics of beach-bar facies on seismic amplitude attributes.Seismic sedimentology is used to explore the characterization of beach-bar microfacies.The study identifies five seismic reflection characteristics of beach-bar facies in the upper part of the fourth member of Shahejie Formation.The cluster analysis method is used to identify the distribution range of beach-bar facies,and to describe the distribution form of beach-bar microfacies based on colored inversion technology,and explored to use of the radial basis multi-attribute fusion method in thickness sand body prediction.The results show that the sand body in the northwest that interferes with the original seismic attributes is not developed,and is dominated by semi-deep lacustrine mudstone.This prediction result is in good agreement with the actual geological understanding,eliminating the ambiguity of a single seismic attribute.Based on the above results,the study has finely described the distribution of beach-bar micro facies in the study area,showing that the bar sand microfacies in the study area is well-developed and distributed in a wide range,and shows the characteristics of multiple parallel rows of sand bars facing the semi-deep lake area.It is a favorable target area with good potential for unconventional oil and gas exploration and development in the next step.关键词
地震沉积学/滩坝砂体/聚类分析/多属性融合/砂体展布Key words
seismic sedimentology/beach bar sand body/cluster analysis/multi-attribute fusion/sand body spread分类
能源科技引用本文复制引用
李斌,梁宇,赵虎,杨宏伟,魏国华..径向基多属性融合在滩坝砂体刻画中的应用[J].西南石油大学学报（自然科学版）,2025,47(3):37-47,11.
