论文成果

Stochastic and upscaled analytical modeling of fines migration in porous media induced by low-salinity water injection

摘要:Fines migration induced by injection of low-salinity water (LSW) into porous media can lead to severe pore plugging and consequent permeability reduction. The deep-bed filtration (DBF) theory is used to model the aforementioned phenomenon, which allows us to predict the effluent concentration history and the distribution profile of entrapped particles. However, the previous models fail to consider the movement of the waterflood front. In this study, we derive a stochastic model for fines migration during LSW flooding, in which the Rankine-Hugoniot condition is used to calculate the concentration of detached particles behind and ahead of the moving water front. A downscaling procedure is developed to determine the evolution of pore-size distribution from the exact solution of a large-scale equation system. To validate the proposed model, the obtained exact solutions are used to treat the laboratory data of LSW flooding in artificial soil-packed columns. The tuning results show that the proposed model yields a considerably higher value of the coefficient of determination, compared with the previous models, indicating that the new model can successfully capture the effect of the moving water front on fines migration and precisely match the effluent history of the detached particles.

关键字:low-salinity water (LSW) flooding fines migration stochastic model downscaling porous media waterflooding front exact solution O29

ISSN号:0253-4827

卷、期、页:卷: 41; 期: 3; 页: 491-506

发表日期:2020-03-01

影响因子:2.016900

期刊分区(SCI为中科院分区):二区

收录情况:SCIE(科学引文索引网络版)

发表期刊名称:APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION

参与作者:游振江

通讯作者:袁伟峰

第一作者:杨钰龙,侯吉瑞,李军,刘洋

论文类型:期刊论文

论文概要:杨钰龙,袁伟峰,侯吉瑞,游振江,李军,刘洋,Stochastic and upscaled analytical modeling of fines migration in porous media induced by low-salinity water injection,APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION,2020,卷: 41; 期: 3; 页: 491-506

论文题目:Stochastic and upscaled analytical modeling of fines migration in porous media induced by low-salinity water injection