The Possibility of Wax Formation in Gas Fields:a Case Study

作     者：Z.Jeirani A.Lashanizadegan Sh.Ayatollahi J.Javanmardi 

作者机构：School of Chemical and Petroleum EngineeringShiraz UniversityShirazIran School of Chemical EngineeringShiraz University of TechnologyShiraz.Iran 

出 版 物：《Journal of Natural Gas Chemistry》 (天然气化学杂志（英文版）)

年 卷 期：2007年第16卷第3期

页      面：293-300页

核心收录：

学科分类：0808[工学-电气工程] 081803[工学-地质工程] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0818[工学-地质资源与地质工程] 0703[理学-化学] 

主　　题：wax precipitation fluid phase equilibria multisolid model gas condensate 

摘      要：Natural gas production from a gas reservoir （Reservoir A） located in the south of Iran, presents solids deposition during processing because the condensate contains suspended and dissolved solids. Solids deposition occurs not only in the transportation lines from the wells to the separators but also in the various operating units of gas streams and condensate stream. In this study, the multisolid-phase model has been used to predict the wax precipitation from gas and gas condensate fluids. The properties of gas and liquid phases are described using the Soave-Redlich-Kwong （SRK） equation of state. The model is then used to predict the possibility of the wax formation in Reservoir A gas facilities, located at the south of Iran. Solid deposition which occurred in the various streams of that facility confirmed the calculated results. Finally, the wax appearance temperature （WAT）, the weight percent of wax formation and the effects of pressure and temperature on the wax formation were also predicted.