摘要
基于渗流力学与岩石力学理论,建立了油藏多相渗流与应力耦合分析模型,运用有限元和有限差分法建立数值解法,可对渗流场,应力场演变规律以及岩石力学参数变化进行研究,重点讨论了在渗流场影响下岩层应力分布的重新调整及其变形特征,并结合油田套损问题进行了应用研究,分析了套损的力学机理。
Based on the theory of fluid mechanics in porous media and rock mechanics, a fully-coupled multiphase flow-mechanics model of reservoir was established, and numerical simulation by FEM(Finite Element Method) and FDM(Finite Difference Method) was also given; the simulation results show evolution laws in seepage field and stress field ,including variation of rock mass mechanics parameters. By the influence of coupling, stress was adjusted between the various layers with corresponding deformation characteristics. Finally, a practical example of casing damage in petroleum engineering is presented, from which it is demonstrated that coupling is an important issue to be considered.
出处
《水动力学研究与进展(A辑)》
CSCD
北大核心
2005年第2期221-225,共5页
Chinese Journal of Hydrodynamics
关键词
流固耦合
应力场
岩层变形
套损
fluid-solid coupling
stress field
rock mass deformation
casing damage