不完全可逆变形介质油藏流体渗流模型及其数值解

A model of percolation flow through non-perfectly reversible deformation medium and its numerical solution

由于地层压力变化引起地层变形具有不完全可逆性 ,导致地层渗透率和孔隙度随压力变化也具有不完全可逆性。本文建立了不完全可逆变形介质油藏流体渗流模型 ,综合采取了状态方程隐式处理和Richtmyer线性化方法 ,有效地对不完全可逆变形介质油藏流体渗流问题进行了数值解 。

With the variation in the formation pressure, the formation deformation is non perfectly reversible, thus the formation permeability and porosity are also non perfectly reversible. A mathematical model of percolation flow through non perfectly reversible deformation medium is established in this paper. Numerical solution of the model successfully uses the implicit processing method of the state equation and linearized algorithm of Richtmyer. In this paper it is discussed that oil field production capacity is afected by non reversibility of the porous medium deformation.