低渗透油田精细油藏描述研究进展  

Advances in the Study of Fine Reservoir Description in Low Permeability Oilfield

作　　者：陈欢庆[1] 李顺明[1] 邓晓娟 CHEN Huan-qing;LI Shun-ming;DENG Xiao-juan(Oilfield Development Department of Research Institute of Petroleum Exploration&Development,PetroChina,Beijing 100083,China)

机构地区：[1]中国石油勘探开发研究院油田开发所,北京100083

出　　处：《科学技术与工程》2018年第32期129-142,共14页Science Technology and Engineering

基　　金：国家科技重大专项(2011ZX05016-006);中国石油天然气股份有限公司勘探与生产分公司项目(2018-40217-000001)资助

摘　　要：从国内外研究现状入手,详细介绍了目前低渗透油田精细油藏描述研究的现状,对比了国内外相关研究的差异。认为低渗透储层的渗透率在(0. 1～50)×10^(-3)μm^2。结合研究实践,总结了低渗透油田精细油藏描述研究的5个关键问题,即多方法单砂体精细预测和刻画、多信息裂缝表征、储层微观孔隙结构研究、低渗透储层流动单元分类、低渗透储层保护技术等。同时指出了低渗透油田精细油藏描述5个方向的发展趋势:微构造描述;储层成岩作用等地质成因分析;对低渗透油田注CO_2及氮气或注聚合物采油等机理进行相关实验研究;在低油价背景下精细油藏描述加强经济有效性评价,保证精细油藏描述研究成果在开发调整方案、老油田滚动扩边等生产实践中能够顺利应用;精细油藏描述中为水平井设计及其他工程措施的实施开展的相关基础研究。From domestic and foreign research present situation,the current research situation of low permeability oilfield fine reservoir description was introduced,and the difference of the related studies at home and abroad was compared.Permeability of low permeable reservoir is thought in(0.1~50)×10-3μm 2.Based on the practical research,summarizes the low permeable oil fields of fine reservoir description study to five key problems,namely the method of single sand body fine prediction and description and fracture characterization of microscopic pore structure with all kinds of informations,low permeability reservoir flow unit classification,low permeability reservoir protection technology,etc.At the same time points out the direction of fine reservoir description of low permeability oilfield five development trends:micro-structural description;reservoir diagenesis and other geological genesis analysis;CO 2 or nitrogen injection in low permeable oil fields,or polymer flooding mechanism related experiments;under the background of low oil prices,fine reservoir description to strengthen economic effectiveness evaluation,ensure the fine reservoir description research achievements in the development adjustment scheme,old fields are successfully applied in production practice such expanding reserves exploitation;designed for horizontal well in fine reservoir description and other engineering measures for the implementation of the relevant basic research.

关 键 词：低渗透油田 精细油藏描述 单砂体 裂缝表征 微观孔隙结构 流动单元 储层保护 

分 类 号：TE122.3[石油与天然气工程—油气勘探]