页岩气吸附机理研究现状分析

摘要

There are different opinions about the main storage state of shale gas and the ratio of adsorption gas in the reserve. This paper investigates the recent shale gas production situation, adsorption and desorption, gas content test and influential factors of adsorption. It conclude relative theories and experiment evidences that shale gas generates from the adsorption gas. The results show that the gas adsorption in shale is influenced by multiple factors. While the current Langmuir model is not suitable for the shale gas adsorption experiment at high temperature, it need further study on adsorption theory.%关于页岩气的主要赋存状态以及吸附气在页岩气藏储量中所占的比例，目前研究观点尚未统一，存在一定的争议。本文对近年页岩气生产现状、吸附与解吸、页岩含气量测定实验以及影响页岩吸附能力的因素等方面进行调研，归纳出页岩气属于吸附气观点的理论与实验依据。研究认为，页岩中吸附气的含量受多方面因素的影响。目前普遍使用的Langmuir等温吸附模型，并不能准确适用于高压条件下对页岩气的吸附实验，需要深入吸附理论的研究。