A new correlation for the viscosity of CO2 and H2S is presented. The correlation is based on the viscosity of CO2, which has been thoroughly studied over a wide range of temperatures and pressures. Furthermore there are several critical reviews of these data. Low-pressure viscosities, which are a function only of the temperature, are extrapolated to high pressure using an approach similar to Jossi et al. (1962). That is, instead of using a correlation based on temperature and pressure, the viscosity is extrapolated as a function of the density. The main application for the new correlation is acid gas injection. The desired correlation is one that is relatively simple yet applicable to the gas, liquid and super critical phases - all of which are encountered in an acid gas injection scheme. Thus the correlation was limited to temperatures greater than 0℃ and pressure less than 30 MPa. The new correlation is for fluid densities up to 1250 kg/m3.
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