Influencing Factors of Tight Gas Adsorption Capacity
In order to study the change law of tight gas adsorption capacity under different conditions and provide theoretical basis for the development of tight gas reservoirs,the shale gas adsorption and desorption test equipment was designed and completed based on different influencing factors of shale gas adsorption.Research on different factors such as temperature,particle size,organic matter content,and carbon content that affect shale gas adsorption was conducted,which provides a basis for accurately measuring the calculation of shale gas adsorption under different conditions.The research results indicate that when the temperature is close to room temperature,the fitting effect of the Langmuir adsorption model is better.Under high temperature conditions,because the Langmuir model does not consider the effect of adsorption heat on adsorption,the fitting effect of the Langmuir adsorption model on experimental data is poor.During the experiment,shale particles with a particle size of 60-80 mesh were used for adsorption testing,which is more in line with the actual adsorption of shale gas.The adsorption capacity of shale gas increases with the increase of organic matter content,and is positively correlated with organic matter content due to interference from factors such as water content.