页岩气微观孔隙渗流物理模型的构建研究

The Research of Shale Gas's Micro Pore Seepage Physical Model

传统页岩气孔隙渗流物理模型的构建无法有效表述页岩气的多种特性,导致构建的物理模型不准确,不能准确显示页岩气的微观孔隙渗流情况,影响页岩气的开采。提出一种基于页孔隙结构和纳米级气流态分析的物理模型构建方法,在对孔隙的气流分析基础上考虑页岩气的扩散、滑脱、吸收等特性,统计推导页岩气微观孔隙渗流物理模型,准确描述页岩气动态,为页岩气的开采提供参考。

Traditional shale gas porosity seepage physical model building can not effectively express a variety of characteristics of shale gas, leading to build physical model is not accurate, can＇t accurately show that shale gas micro pore percolation, impact the exploration of shale gas. To solve this problem, this paper put forward a new method of the physical modelbuilding based on the pore structure and nano-scale gas flow state analysis. Based on the analysis of pore air consideringslip diffusion absorption properties of shale gas, shale gas, micro pore percolation physics model derived from the statistical, accurate description of shale gas dynamics, for shale gas exploration to provide effective help.