径向基多属性融合在滩坝砂体刻画中的应用

doi:10.11885/j.issn.1674-5086.2022.03.08.01

西南石油大学学报(自然科学版) ›› 2025, Vol. 47 ›› Issue (3): 37-47.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

李斌^1,2, 梁宇¹, 赵虎^1,2, 杨宏伟³, 魏国华³

1. 西南石油大学地球科学与技术学院, 四川成都 610500;
2. 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;
3. 中国石化胜利油田分公司物探研究院, 山东东营 257001

收稿日期:2022-03-08 发布日期:2025-07-11
通讯作者: 梁宇，E-mail： 731997015@qq.com
作者简介:李斌，1977年生，男，汉族，新疆奎屯人，副教授，主要从事油气成藏和非常规油气资源评价的教学和科研工作。E-mail：lbin@swpu.edu.cn
梁宇，1994年生，男，汉族，四川成都人，硕士，主要从事层序地层、地震沉积方面的研究工作。E-mail：731997015@qq.com
赵虎，1983年生，男，汉族，江苏淮安人，教授，主要从事复杂地区地震资料采集方法和地震储层预测技术研究工作。E-mail：cumtzhaohu@163.com
杨宏伟，1967年生，男，汉族，山东无棣人，高级工程师，博士，主要从事综合解释及油藏建模研究工作。E-mail：yanghongwei676.slyt@sinopec.com
魏国华，1981年生，男，汉族，甘肃民勤人，工程师，主要从事井中地震处理研究及应用工作。E-mail：weiguohua297.slyt@sinopec.com

Application of Radial Basis Function Multi-attribute Fusion Technology in the Study of Beach-bar Sand Body Distribution Law

LI Bin^1,2, LIANG Yu¹, ZHAO Hu^1,2, YANG Hongwei³, WEI Guohua³

1. School of Geoscience and Technology, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploration, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
3. Geophysical Exploration Research Institute, Shengli Oilfield, SINOPEC, Dongying, Shandong 257001, China

Received:2022-03-08 Published:2025-07-11

摘要/Abstract

摘要： 针对局限湖盆滨浅湖滩坝相砂体薄、相变快、储层非均质性强，现有地震分辨率难以有效刻画的问题，以大芦湖油田博兴洼陷沙四上亚段为例，在区域等时界面T₇约束下利用年代地层切片提取了地震振幅属性，明确了滩坝相在地震振幅属性上的响应特征，采用地震沉积学技术探索滩坝微相的刻画。沙四上亚段滩坝相发育5种地震反射特征，采用聚类分析方法识别了滩坝微相的分布范围，探索径向基多属性融合方法进行砂体厚度预测。结果表明，在原始地震属性中产生干扰的西北部砂体不发育，以半深湖相泥岩为主，研究结果与真实地质认识吻合程度高，消除了单个地震属性具多解性的问题。研究综合上述成果精细刻画了研究区滩坝微相的分布，显示出研究区内坝砂微相发育且分布范围较广，呈现多列砂坝面向半深湖区平行排列的特征，油气显示较好，是下一步非常规油气勘探开发的有利目标区。

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

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 microfacies 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.

Key words: seismic sedimentology, beach bar sand body, cluster analysis, multi-attribute fusion, sand body spread

中图分类号:

TE122

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.

LI Bin, LIANG Yu, ZHAO Hu, YANG Hongwei, WEI Guohua. Application of Radial Basis Function Multi-attribute Fusion Technology in the Study of Beach-bar Sand Body Distribution Law[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2025, 47(3): 37-47.

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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

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