The Influence of Temperament on the Conveying Efficiency of UCG High Temperature Gathering Network

Abstract

Due to the particularity of its gas source area and transportation medium, the factors affecting the efficiency of UCG pipeline transportation are also more complex than those of conventional natural gas. The dendriform UCG pipeline network model is designed through pipe network simulation software, aiming at different component conditions such as moisture, coal tar and dust, and aiming at different pressure and pressure drop changes of wellsite, branch line and trunk line respectively for quantitative analysis. The results show that the increase of the proportion of CH4 and H2 can improve the transport efficiency. With the increase of the proportion of H2O components, the transport efficiency will decrease. Tar in the group does not increase the transportation efficiency, and if the component is large, it will lead to liquid phase in the pipeline and reduce the transportation efficiency; The appearance of dust will reduce the efficiency of transportation.