摘要
基于现有的研究成果和存在的问题,探讨了分支河流体系(DFS)研究中的关键科学问题、主要研究内容、研究方法和工作流程。研究结果表明:①DFS研究中最关键的3个科学问题是明确河网结构和河型演变规律、构建沉积标志和沉积模式、分析其形成和分布的控制因素。②DFS研究的主要内容包括建设形态沉积学数据库、现代沉积机理研究、分类研究、建立沉积模式、储层建模与储层预测等5个方面。③DFS研究中的关键技术包括基于遥感图像的形态数据采集、形成机理的水槽和模拟实验、河网重构、顶点位置预测与河道分汊点自动生成方法、储层建模知识库平台等。④DFS研究的基本工作流程是先建立形态沉积学数据库,搭建数据库软件平台,在此基础上选择具有代表性的DFS进行现代沉积解剖,然后综合现代沉积调查、露头解剖和模拟实验成果,形成分类体系,总结各类DFS的识别标志和沉积模式,分层次建立储层预测模型,形成沉积结构储层预测模型的建模软件平台,从而预测沉积体系中有利储层的分布。
Based on the existing research results and shortcomings of distributive fluvial system(DFS),the key scientific issues,main research contents,research methods and workflow in DFS research were discussed.The results show that:(1)There are three critical scientific issues in DFS sedimentology research including modelling the river channel network and their evolution,constructing sedimentary model and analyzing the control factors influencing DFS formation and distribution.(2)The main directions in DFS research are to build sedimentologi‐cal database,to study on modern DFS deposition mechanism and DFS classification,and to establish DFS sedi‐mentary model,DFS reservoir modeling and reservoir prediction.(3)The key technologies necessary to strengthen the research include DFS morphological and sedimentological data collection based on remote sensing images,flume experiment and digital simulation of DFS formation mechanism,DFS river channel network reconstruc‐tion,DFS apex estimation and automatic branching point prediction and DFS reservoir modeling knowledge base construction.(4)The work processes of DFS research have three main steps in which the first step is to establish the DFS geomorphological and sedimentological data base and the related software platform,the second step is to carry out DFS classification by integrating the modern sedimentary investigation,outcrop anatomy and simulation experiment research,and the final is to summarize the facies identification marks and to build the sedimentary models of various DFS.Based on the above,the reservoir prediction models and the software platform can be established for hierarchically reservoir modeling,so as to predict the favorable reservoir distribution in depositional system.
作者
张昌民
张祥辉
王庆
冯文杰
李少华
易雪斐
Adrian JHARTLEY
ZHANG Changmin;ZHANG Xianghui;WANG Qing;FENG Wenjie;LI Shaohua;YI Xuefei;Adrian JHARTLEY(School of Geosciences,Yangtze University,Wuhan 430100,China;School of Geosciences,University of Aberdeen,Aberdeen AB243 UE,UK)
出处
《岩性油气藏》
CAS
CSCD
北大核心
2024年第1期1-13,共13页
Lithologic Reservoirs
基金
国家自然科学基金重点项目“分支河流体系沉积模式与储层定量预测模型”(编号:42130813)资助。
关键词
分支河流体系
河网重构
储层建模
水槽沉积模拟
数据采集
DFS形态沉积学数据库
distributive fluvial system
river network reconstruction
reservoir modeling
flume experiment
data acquisition
DFS sedimentology database
