摘要
在变形多孔介质油藏中,油气开采导致地层压力下降,从而引起多孔介质储层变形和储层物性参数变化,直接影响储层流体的渗流。应用渗流力学及岩土力学原理,在前人工作的基础上,引入储层岩石骨架变形和流体渗流的启动压力,建立了多相流体渗流的流固耦合渗流数学模型,理论上推导出了储层岩石变形数学模型、储层物性参数数学模型,实现了真正意义上的流固全耦合,为流固耦合数值模拟奠定了基础。
In deformational reservoirs with porous media,pressure drop was caused by oil and gas production,thus reservoirs with multi-media were deformed and reservoir physical parameters were changed and influence was induced on filtration of reservoir fluid.The principles of percolation mechanics and geotechnics were used.Starting pressure of reservoir rock framework deformation and fluid percolation was introduced on the basis of predecessors' researches,a mathematical model of fluid-solid coupling of multi-phase fluid flow was established.Mathematical models of reservoir rock deformation and its physical parameters are derived theoretically,a true fluid-solid coupling is implemented,it provides a basis for fluid-solid coupling simulation.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2007年第6期115-119,共5页
Journal of Oil and Gas Technology
关键词
流固耦合
变形介质
数学模型
物性参数
油气田开发
fluid-solid coupling
deformational meida
mathematical model
physical parameter
oilfield development
