高含蜡原油生产中析蜡和熔蜡规律实验研究  

Experimental study on law of wax appearance and disappearance in high wax content oil production

作　　者：王宏[1] 杨胜来[1] 牛彩云[2] 黄伟[2] 李大建[2] 

机构地区：[1]中国石油大学石油工程教育部重点实验室,北京102249 [2]长庆油田公司油气工艺研究院,陕西西安710018

出　　处：《断块油气田》2010年第5期605-607,共3页Fault-Block Oil & Gas Field

摘　　要：运用激光测试高压原油析蜡点的最新方法,对井筒中原油的析蜡规律和地层中原油的熔蜡规律进行了研究。研究结果表明:含气原油比脱气原油的析蜡点温度低;井筒中压力高于泡点压力时,原油析蜡点随压力下降而下降;压力低于泡点压力时,原油析蜡点随压力下降而升高;地层条件下熔蜡温度比析蜡温度高。This article studied the law of wax appearance and disappearance of high wax content crude oil in wellbore and reservoir by using the latest laser testing system.The results indicate that the wax appearance point（WAP） of live oil is lower than that of dead oil.The WAP of crude oil reduces as the pressure drops when the bottom pressure is higher than the bubble point pressure.The WAP of crude oil rises as the pressure drops when the bottom pressure is lower than the bubble point pressure.The wax disappearance point（WDP） is higher than that of WAP under the formation condition.

关 键 词：高含蜡 原油 高压激光测试 析蜡温度 熔蜡温度 

分 类 号：TE311[石油与天然气工程—油气田开发工程]