硫在天然气中的溶解度实验研究

通过对天然气中硫溶解度的室内实验模拟，发现温度、压力和气体组成是影响硫在天然气中的溶解度主要因素。随着温度和压力的升高，硫的溶解度增大；同时气体中硫化氢以及重质组分的含量也是影响其溶解度大小的组分因素中最重要的两个因素，前者的作用说明了硫在天然气中的化学溶解的存在，而后者仿佛就是硫的天然物理溶剂，重质组分含量越高硫的溶解度越大，且随着组分中碳原子数的增加而增大。因此，硫在天然气中的溶解机理既包括化学溶解也包括物理溶解，是二者的有机结合。这对认识和防止高含硫气藏在开发过程中在地层发生硫沉积，合理高效地开发该类气藏提供了参考。

Study on the Mechanism of Sulfur Solutionin Nature Gas

Elemental sulfur ,a harmful mass with the process of exploration gerofpoited in the formation, downhole tubulars and wellhead equipments. This always makes well product decrease or equipments be plugged. It, therefore, has great meaning on exploitation of sour gas reservoir that understanding the mechanic of sulfur-solubility. It found that temperature ,pressure and composition of gas are the most important keys influenced the solubility of elemental sulfur in nature gas. If temperature or pressure increased, Solubility of elemental sulfur in natugasas teime, the content of hydrogen sulfide and weight compositions in gas had great effect on solubility of sulfur. All those illuminate the mechanism of elemental sulfur solution in sour gas including both chemical solution and physical solution.