流体饱和下高孔隙率储油砂岩力学特性及本构模型  

MECHNICAL BEHAVIOUR OF A LARGE POROUS SANDSTONE WITH SATURATIONG FLUID IN OIL RESERVOIR AND ITS CONSTITUTIVE MODEL

作　　者：田斌[1] 卢应发[1] 邵建富[2] 

机构地区：[1]三峡大学土木水电学院水利水电工程系,宜昌443002 [2]法国里尔科技大学里尔力学实验室,里尔59655

出　　处：《固体力学学报》2006年第S1期155-158,共4页Chinese Journal of Solid Mechanics

基　　金：教育部科学技术研究重点项目(26097)资助

摘　　要：通过对其力学实验结果的分析,以两种破坏理论对油及水饱和下大孔隙率储油砂岩的破坏特征进行了解释,并应用塑性力学的盖帽模型建立了油及水饱和下大孔隙率储油砂岩的本构模型,并应用非线性有限元法进行了数值试验,结果表明,该文提出的模型与实验资料吻合良好,且能较好地模拟大孔隙率砂岩的几种破坏机理及模拟注水采油引起的砂岩附加沉降.A different mechanics behaviour and a different failure style were observed of the large porous sanstone in oil reservoir with diffrent confining pressure and diffrent saturating fluids(e.g.oil or water).Laboratory test demonstrated that a critical value of confining pressure was proved to be exist,when the confining pressure is increased,the mainly pressure-shear failure can be changed into slough failure.In the paper,the two sorts failure throries are used to explain failure types of large porous sandston...

关 键 词：岩石力学 高孔隙率砂岩 油饱和 水饱和 本构模型 

分 类 号：TU452[建筑科学—岩土工程]