摘要
由于压力对地层和流体参数的影响，以及地层流体在渗流速度（压力梯度）变化时，流体组份与性质，流体和岩石表面作用力对渗流过程产生的影响，使低渗透油藏在注水开发过程中，介质在变应力作用下会产生在弹－塑性变形．高含蜡、含胶质原油具有流变性．油藏内形成的胶凝结构。
When flow velocity (pressure gradient) changes due to the effect of pressure on the parameters of formation and fluids, the composition and properties of fluid and the reaction force between fluids and rock surface have effect on the flow process. As a result of this, during the water flooding process for a lowpermeability reservoir, the porous media exhibits an elasticplastic deformation under the effect of varying stress. The crude oil of high paraffin content and colloidal matter is nonNewtonian fluid with geological property. Jelling structure is formed inside the reservoir and its performance exhibits the characteristics of elasticplastic flooding.
出处
《大庆石油学院学报》
CAS
北大核心
1999年第2期85-87,共3页
Journal of Daqing Petroleum Institute
基金
国家"九五"科技攻关项目
关键词
渗流速度
压力梯度
储层介质
低渗透油藏
注水
porous media, nonNewtonian fluid, flow velocity, pressure gradient, reservoir media
