Abstract:Now for the liquid sulfur deposition in the reservoir of sulfur are limited in the gas-liquid two phase flow, under the condition of no lower than the maximum bound sulfur saturation of reservoir damage reports, are proposed in this core set up below the maximum bound sulfur saturation experiment evaluation method, test the different property of core damage under different liquid sulfur saturation degree, analysis the influence factors of reservoir liquid sulfur saturation and liquid sulfur in microscopic pore distribution form. The experimental results show that under the same formation pressure, the deposition capacity of liquid sulfur in the core decreases with the increase of experimental temperature (120-160℃). At the same test temperature, with the decrease of formation pressure, the effective pressure on the core increases and the bound sulfur saturation increases. Under the same condition, the worse the core physical property is, the greater the damage degree of liquid sulfur deposition is. Scanning electron microscopy (SEM) of the cores showed that the pores of the cores were all clogged with liquid sulfur deposition, and the particle size of elemental sulfur deposited in the pores was mainly distributed between 3 μm and 16 μm.