低渗透储层非达西渗流机理探讨

从多孔介质的孔隙结构、孔隙介质与渗流流体之间的相互作用和渗流流体性质等方面阐述了低速非达西渗流产生机理的不同观点，探讨了孔隙大小、孔隙喉道的几何结构、比表面积与渗透率的关系及其对启动压力的影响。深入研究了地层水、界面张力、边界层、渗流流体性质等对非达西渗流形成的作用机制，并对进一步开展低渗透储层渗流研究提出了建议。

Non- Darcy percolation mechanism in low permeability reservoir

This paper elaborates the mechanism of low velocity non-Darcy percolation in aspects of pore structure, interaction between porous medium and percolation fluid, and fluid property, and discusses pore size, pore throat geometric structure, the relationship of specific surface area and permeability, and their impact on starting pressure. The role of formation water, interfacial tension, boundary layer, and fluid property on forming of non-Darcy percolation is deeply studied. And suggestions for further study of percolation in low permeability reservoir are proposed.