Experimental Study on the Elemental Sulfur Solubility in Sour Gas Mixtures

The investigation of elemental sulfur solubility plays critical roles on sour gas reservoir development. In this paper, the was directly measured by static method with samples from well M1 a in Sichuan Basin. results show that ranges 0.001 g/cm 3 to 0.968 at 40–98.9 MPa and 15–49.8 MPa. increases increasing temperature pressure, especially when pressure is greater than 30 Moreover, H 2 S content mixtures also an important factor affecting solubility. mixtures. experimental data paper display consistent trend reported data. Based results, chrastil-type model, Robert’s model Hu’s were investigated compared. fitting has less error higher accuracy calculating M reservoir. models proposed literature, meanwhile, are only based regression specific components conditions, which lead large calculation research. research provide basic technical support for development