Introduction

The equipment is used for evaluating the effect of invading fluid on gas deliverability of coal/shale bed by determining the change in recovery value of desorption when the sample before and after being damaged. It can not only be used for detecting the isothermal curves of adsorption and desorption of single component gases, also can be used for multi-component gases and obtaining the diffusion coefficient of gas in the coal/shale beds. In addition, it can study the influences of external conditions such as reservoir temperature, moisture in the coal, the component of adsorbed gas, the drilling fluids and fracturing fluids on the coal/shale beds. During the experiments, the equipment can monitor the analog pressure and the change in adsorption/desorption capacity of different gas in real-time. In addition, the equipment has functions of rapid data acquisition, data process and storage and printing the experimental curves.

Key Technical Parameters