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凝胶颗粒调剖的模拟实验
引用本文:卢福申,曹书瑜,贺得才,岳湘安,侯吉瑞.凝胶颗粒调剖的模拟实验[J].油气地质与采收率,2004,11(6):61-63.
作者姓名:卢福申  曹书瑜  贺得才  岳湘安  侯吉瑞
作者单位:1. 青海油田分公司采油三厂
2. 石油大学(北京)
摘    要:采用模拟实验方法研究了凝胶颗粒在岩心中的运移特性、封堵能力及其调剖效果。利用可视化孔喉模型观测凝胶颗粒在孔喉处的变形和破碎过程;应用多测点岩心模拟实验得到的压力分布动态资料分析凝胶颗粒段塞的运移位置;利用残余阻力系数评价凝胶颗粒在岩心中的封堵能力。模拟实验结果表明,凝胶颗粒在特高渗透岩心中具有较好的运移特性,可以降低岩心的渗透率;在非均质油层中具有一定的调剖效应。另外,凝胶颗粒在注入端的堵塞较严重,而在距注入端较远处封堵能力明显减弱。

关 键 词:调剖  凝胶颗粒  非均质油藏  波及体积
文章编号:1009-9603(2004)06-0061-03
修稿时间:2004年8月17日

Modeling experiments on controlling profile by gel particles
Lu Fushen,Cao Shuyu,He Decai et al..Modeling experiments on controlling profile by gel particles[J].Petroleum Geology and Recovery Efficiency,2004,11(6):61-63.
Authors:Lu Fushen  Cao Shuyu  He Decai
Abstract:The migration behavior, plugging ability and profile control effects of gel particle in core were studied. The process of deformation and breakup of the gel particles at pore throat was observed through visual pore throat model; migration position of gel particle slug was determined by dynamic data analysis on multi-point pressure distribution obtained in core modeling experiments ; its plugging ability in core was evaluated by residual resistance factor. Experimental results show that the gel particles have better migration property in ultra-high permeability cores and may lower core permeability , and improve profile control in heterogeneous formation to some extend. Besides, the plugging of gel particle is found seriously at injection end and weakly away from injection end.
Keywords:profile control  gel particle  heterogeneous reservoir  swept volume
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