油气管道水合物解堵工艺及存在问题  

Removal process of hydrate blockages in oil/gas pipelines and existing problems

作　　者：宋光春[1] 李玉星[1] 王武昌[1] 赵鹏飞[1] 姜凯[1] 魏丁[1] 叶晓[1] 

机构地区：[1]中国石油大学(华东)储运与建筑工程学院

出　　处：《油气储运》2016年第8期823-827,共5页Oil & Gas Storage and Transportation

基　　金：国家自然科学基金资助项目"水合物颗粒聚集动力学及流动安全研究";51006120;高等学校博士学科点专项科研基金资助项目"天然气水合物生长动力学及快速形成机理研究";20110133110004

摘　　要：为了保障深水和超深水海底油气管道输送介质的流动安全,对现有水合物解堵工艺进行评述研究。分析了管内水合物的形成、堵塞过程及水合物的分解机理,探讨了各种解堵工艺的特点、适用条件以及在工程实际中的应用现状。针对各种解堵工艺存在的安全问题,分析了其产生原因及危害,并提出了相应的解决方案。结果表明:堵塞块位置、长度的确定和对管道压力、温度的控制是安全、高效地实现管道水合物解堵的关键。In order to guarantee the flow safety of transmission medium in deepwater and ultra-deepwater pipelines, the existed removal processes of hydrate blockages were reviewed. Formation, blockage and dissociation of hydrates in pipelines were analyzed. In addition, specific features, applicable conditions and field application status of various blockage-removal techniques were discussed. After such proceses were assessed for their safety hazards and causes thereof, proper solutions were proposed. The results show that determination of position and size of blockage, and control over pipeline temperature and pressure play an essential role in safe and efficient hydrate blockages removal process. （6 Figures, 14 References）

关 键 词：天然气水合物 堵塞 解堵 工艺 安全 

分 类 号：TE832[石油与天然气工程—油气储运工程]