西安石油大学学报（自然科学版）2024，Vol.39Issue(2)：47-54,8.DOI:10.3969/j.issn.1673-064X.2024.02.006
注水开发中悬浮物粒径与储层孔隙结构匹配关系
Matching Relationship Between Suspended Particle Size and Reservoir Pore Structure in Water Injection Development
摘要
Abstract
In order to improve the method for formulating the median size index of suspended particles in water injection development,taking the Weizhou oilfield group in the western part of the South China Sea as an example,the relationship(Rc-K)between rock pore structure parameter and permeability in main production layer is analyzed on the basis of a large amount of statistical data,and the rela-tionship(K-d)between permeability and median size of suspended particles is derived by optimizing the original water injection inde-xes of the oilfield group through laboratory core replacement experiments.The matching relationships(d/2Rc)between the median size of the suspended particles in injected water and the throat diameter of the reservoir for different core permeability levels are obtained by correlating Rc-K equation and K-d relationship:Based on a permeability retention rate of 80%,d/2Rcis1/6 for K=(10～50)×10-3 μm2,d/2Rcis1/5 for K=(50～100)×10-3 μm2 and K=(100～300)×10-3 μm2.关键词
匹配关系/悬浮物粒径中值/储层孔隙结构/岩心渗透率/注水水质Key words
matching relationship/median size of suspended particles/reservoir pore structure/core permeability/injected water quality分类
能源科技引用本文复制引用
秦立峰,吴绍伟,马雪琼,卢辰,白玉震,苏碧云..注水开发中悬浮物粒径与储层孔隙结构匹配关系[J].西安石油大学学报（自然科学版）,2024,39(2):47-54,8.基金项目
中海石油(中国)生产性科研项目"涠洲油田群注入水水源替代与水质指标优化可行性方案研究"(CCL2022ZJFN0568) （中国）
