摘要
研究泥页岩的水化机理并建立孔隙压力传递模型。模型计算结果表明:水和离子的通量导致泥页岩孔隙压力的改变,进而影响了泥页岩的稳定性;半透膜渗透压引起的近井壁地带大孔隙压力梯度是造成泥页岩井壁失稳的重要因素。
This paper researches shale hydration mechanism and the establishment of pore pressure transmission model.By the model calculations shows that water and ion fluxes lead to shale pore pressure change,thereby affecting the stability of the shale.Near the borehole wall zone pore pressure gradient semipermeable membrane osmotic pressure caused by shale borehole is the important factor of instability.
出处
《重庆科技学院学报（自然科学版）》
CAS
2013年第4期63-65,共3页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
重庆市石油与天然气基金项目(KJ2011002)
关键词
泥页岩
孔隙压力传递
水力压差
化学势差
shale
proe pressure transmission
hydraulic pressure
chemical potential difference
