Aquathermolysis of conventional heavy oil with superheated steam

作     者：Song Guangshou Zhou Tiyao Cheng Linsong Wang Yunxian Tian Guoqing Pi Jian Zhang Zheng Song Guangshou1,Zhou Tiyao2,Cheng Linsong2,Wang Yunxian3, Tian Guoqing2,4,Pi Jian2,5 and Zhang Zheng2 1 Department of Geology,Northwest University,Xi’an,Shaanxi 710069,China 2 Key Laboratory of Petroleum Engineering,Ministry of Education,China University of Petroleum,Beijing 102249,China 3 China National Offshore Oil Co.Ltd-Tianjin,Tianjin 300452,China 4 NO.6 Oil Production Plant,PetroChina Changqing Oilfield Company,Xi’an,Shaanxi 710018,China 5 Research Center,China National Offshore Oil Corporation,Beijing 100027,China

作者机构：Department of Geology Northwest University Xi＇an Shaanxi 710069 China Key Laboratory of Petroleum Engineering Ministry of Education China University of Petroleum Beijing 102249 China China National Offshore Oil Co. Ltd-Tianjin Tianjin 300452 China NO.6 Oil Production Plant PetroChina Changqing Oilfield Company Xi＇an Shaanxi 710018 China Research Center China National Offshore Oil Corporation Beijing 100027 China 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2009年第6卷第3期

页      面：289-293页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 0808[工学-电气工程] 08[工学] 0820[工学-石油与天然气工程] 0707[理学-海洋科学] 0817[工学-化学工程与技术] 0828[工学-农业工程] 0818[工学-地质资源与地质工程] 0708[理学-地球物理学] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 0816[工学-测绘科学与技术] 0827[工学-核科学与技术] 0813[工学-建筑学] 0703[理学-化学] 0814[工学-土木工程] 0825[工学-航空宇航科学与技术] 0704[理学-天文学] 082002[工学-油气田开发工程] 

基　　金：support from the National Natural Science Foundation of China(Grant No.50276040)is gratefully acknowledged 

主　　题：Conventional heavy oil superheated steam aquathermolysis viscosity reduction 

摘      要：This paper presents a new aquathermolysis study of conventional heavy oil in superheated steam. A new high temperature autoclave was designed, where volume and pressure could be adjusted. Aquathermolysis was studied on two different conventional heavy oil samples under different reaction times and temperatures. Experimental results show that aquathermolysis does take place for conventional heavy oil. As reaction time increases, the oil viscosity reduces. However, the reaction will reach equilibrium after a certain period of time and won＇t be sensitive to any further reaction time any more. Analysis shows that, while resin and asphaltenes decrease, saturated hydrocarbons and the H/C ratio increase after reaction. The main mechanism of aquathermolysis includes hydrogenization, desulfuration reaction of resin and asphaltenes, etc.