Simulation of petroleum phase behavior in injection and production process of underground gas storage in a gas reservoir

作     者：WANG Jieming SHI Lei ZHANG Yu ZHANG Ke LI Chun CHEN Xianxue SUN Junchang QIU Xiaosong WANG Jieming;SHI Lei;ZHANG Yu;ZHANG Ke;LI Chun;CHEN Xianxue;SUN Junchang;QIU Xiaosong

作者机构：PetroChina Research Institute of Petroleum Exploration&DevelopmentBeijing 100083China Key Laboratory of Oil and Gas Underground Storage Project of China National Petroleum CorporationLangfang 065007China China University of PetroleumBeijing 102249China State Key Laboratory of Heavy Oil ProcessingBeijing 102249China State Key Laboratory of Enhanced Oil RecoveryBeijing 100083China PetroChina Liaohe Oilfield CompanyPetroChinaPanjin 124010China 

出 版 物：《Petroleum Exploration and Development》 (石油勘探与开发（英文版）)

年 卷 期：2022年第49卷第6期

页      面：1386-1397页

核心收录：

学科分类：0820[工学-石油与天然气工程] 080706[工学-化工过程机械] 08[工学] 0708[理学-地球物理学] 0807[工学-动力工程及工程热物理] 082003[工学-油气储运工程] 

基　　金：Supported by Scientific Research and Technology Development Project of PetroChina(KT2019-02-04 2021DJ1001) 

主　　题：underground gas storage phase behavior characteristic mathematical model experimental simulation action mechanism 

摘      要：On the basis of analyzing the fluid phase behavior during the transformation from gas reservoir to gas storage,a mathematical model and an experimental simulation method are established to describe the oil-gas phase behavior during the whole injection-production process of gas *** underground gas storage in the Liaohe Shuang 6 gas reservoir with oil rim is taken as a typical example to verify the reliability and accuracy of the mathematical model and reveal characteristics and mechanisms of fluid phase *** the gas injection stage of the gas storage,the phase behavior is characterized by mainly evaporation and extraction and secondarily dissolution and diffusion of gas in the cap to oil in the oil rim of the reservoir;the gas in gas cap increases in light component content,decreases in contents of intermediate and heavy components,and increases in density and *** oil of the ring decreases in content of heavy components,increases in contents of light and intermediate components,decreases in density and viscosity,and increases in volume factor and solution gas oil *** the stable operation stage of periodic injection-production of gas storage,the phase behavior shows that the evaporation and extraction capacity of injection gas in the cap to oil rim is weakened step by step,the phase behavior gradually changes into dissolution and *** gas in gas cap decreases in content of intermediate components,increases in content of light components slowly,and becomes lighter;but changes hardly in density and *** oil in the oil rim increases in content of heavy components,decreases in content of intermediate components,rises in density and viscosity,and drops in volume factor and solution gas oil ratio.