引用本文:
【打印本页】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览次   下载 本文二维码信息
码上扫一扫!
分享到: 微信 更多
Physical simulation of water flooding in fractured-vuggy unit
LI Ai-fen, ZHANG Dong, YAO Jun, GAO Cheng-hai, LU Ai-min
(School of Petroleum Engineering in China University of Petroleum,Qingdao 266580, China)
Abstract:
The model parameters and experimental conditions of physical simulation were gotten based on the field data and similarity theory- A well pattern model of fractured-vuggy unit was established. Using above model, the resistance of every channel corresponding to every production well was studied by the experiment of single phaae flow. The oil recovery efficien> cy,water cut and injection pressure and the distribution rule of residual oil of the model at different injection rate were studied by experiment of water flooding. The results show that the oil recovery efficiency of model increases and the residual oil decreases with the injection rate increasing. When the well is drilled on the top of vug, the residual oil locates on the top of ihe vug and around the vug edge after water flooding. When the flow path goes through the vug, there is iittle residual oil after water flooding.
Key words:  fractured-vuggy unit  well pattern model  simiUrity criteria  water flooding  residual oil