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页岩气纳米孔气体传输是页岩气数值模拟基础,对页岩气的高效经济开发具有重要意义。页岩气自生自储,富含纳米孔,这些特殊性造成页岩气纳米孔气体传输机理与模拟显著区别于常规油气藏。本文描述页岩气储集层特征;综述并评价页岩气纳米孔气体传输机理和传输模拟,建立了页岩气纳米孔体相气体传输机理判别参数组,并绘制了体相气体传输机理分类新图版;提出了当前页岩气纳米孔气体传输模拟遇到的挑战,并展望了未来需加强研究的关键科学问题。
Shale gas nanopore gas transmission is the basis of numerical simulation of shale gas, which is of great significance for the efficient economic development of shale gas. Shale gas is self-generated and self-contained, and is rich in nanopores. These particularities cause the gas transport mechanism and simulation of shale gas nanopores to be significantly distinguished from conventional reservoirs. This paper describes the characteristics of shale gas reservoirs; reviews and evaluates the gas transport mechanism and transport simulation of shale gas nanopores, sets up a discriminant parameter set of gas transport mechanism of shale gas nano-pores, and draws the classification of gas transport mechanism The new version is presented. The current challenges of simulating gas transport in shale gas nanopores are presented, and the key scientific issues to be strengthened in the future are prospected.