Gas Solid Flowing Model in Gas Reservoirs with High H2S Content

Many gas reservoirs with high H₂S content have been found in China, such as Luojiazhai Gas Field and Puguang Gas Field, and they play an important role in China´s natural gas industry. However, there are a series of serious problems in production of these gas reservoirs, such as H₂S poison, strong corrosion, and sulfur deposition. Therefore, it is important to gas flowing theory study on gas reservoirs with high H₂S content. This paper discusses sour gas flow and sulfur deposition. Based on the experimental work and aerodynamics gas-solid flow theory, three-dimensional multi-component mathematical model for sour gas reservoir is developed. In the model, factors of affecting sulfur particle deposition has been studied, including gas flow rate, initial H₂S concentration and formation permeability.