特低渗透储层非线性渗流规律研究

The Research of Nonlinear Fluid Flow Regularity on the Extra Low Permeability Reservoir

室内试验研究表明,流体在低渗透多孔介质中渗流时表现出非线性特征。文章从非线性渗流的基本特征入手,评价了特低渗透储层的启动压力梯度,得出了储层流体可动油的变化规律,为下步开发调整提供了理论指导。

Laboratory test results show that,fluid flowing in low permeability porous media exhibit nonlinear characteristics. The article starts form the basic characteristics of nonlinear flow, evaluates the actuating pressure gradient of the extra-low permeability reservoir, obtains the variation of the movable oil in the reservoir fluid, offers the guidelines for the next step development and adjustment.