摘要
针对渤海南部海域M油田低渗透储层成岩作用以及孔隙演化规律进行理论及实践研究。利用薄片、储集层物性分析等资料,进行成岩作用和成岩过程中孔隙演化的定量分析。研究表明,M油田沙河街组三段以低渗储层为主,长石含量高、埋藏深度大及孔隙结构复杂等是导致储集层物性变差的重要因素;沙三段储层经过了压实、胶结、溶蚀及交代等成岩作用改造,目前已处于中成岩阶段A2、B亚期,其中压实作用造成原生孔隙大量丧失,是储集层物性变差的最主要原因。
For the low-permeability reservoir diagenesis and porosity evolution of theoretical and practical research of M oilfield field of south Bohai,based on thin-section observation and reservoir property,the article diagenesis and quantitative analysis of pore evolution.It shows that M oilfield is dominated by relatively tense and low permeable reservoirs with high feldspar,deep buried and complicated pore structure,which are important factors causing the reservoir quality to become poor.By reformations of compaction,cementation,dissolution and metasomatism,these reservoirs are now in diagenesis periods of late A2 and B,of which the compaction could be result in overwhelming loss of reservoir porosity as the most important reason of the reservoirs becoming poor.
出处
《重庆科技学院学报（自然科学版）》
CAS
2012年第3期23-26,共4页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
中海石油(中国)有限公司研究项目(SC08TJ-XSZ-071)
关键词
低渗透储层
成岩作用
孔隙演化
定量研究
low-permeability reservoir
diagenesis
pore evolution
quantitative research
