复配防腐油管高温高压气密性检测试验  

The air sealed performance test of mixed anti-corrosion tubing in high pressure and high temperature environments

作　　者：李艳飞 刘春苗 葛俊瑞 和鹏飞 袁则名 LI Yanfei;LIU Chunmiao;GE Junrui;HE Pengfei;YUAN Zeroing(Shanghai Branch of CNOOC Ltd.,Shanghai 200335,China;Engineering Technology Branch of CNOOC Energy Developments Ltd.,Tianjin 300452,China)

机构地区：[1]中海石油(中国)有限公司上海分公司,上海200335 [2]中海油能源发展股份有限公司工程技术分公司,天津300452

出　　处：《石油化工应用》2018年第7期16-19,共4页Petrochemical Industry Application

基　　金：中海油总公司综合科研项目"东海低孔渗油气田勘探开发工程技术研究及应用";项目编号:CNOOC-KJ125 ZDXM07 LTD06SH2012

摘　　要：为降低高温高压气井开发成本,油气田现场往往采用不同钢级或不同防腐级别的油管进行复配,而复配可能会带来环空带压风险。由于高温高压气井对生产管柱气密性的要求更高,因此复配油管的气密性需要进行试验验证。本文将不同钢级、不同防腐级别的多个气密螺纹油管连接成一个管串,进行常温和高温气密性检测试验。试验结果表明,不同防腐材质、不同钢级的油管复配连接气密性保持良好,且气密螺纹扣油管气密性能在高温状态下更为良好。In order to reduce the development cost of high temperature and high pressure（HTHP）gas wells, it is a common practice for oil and gas industries to use the mixed anti-corrosion tubing of different steel grade or anti-corrosion grade, which may bring the risk of sustained casing pressure.Because HTHP gas wells have high requirements on the air-sealed performance of production string, the air-sealed performance of the mixed anti-corrosion tubing premium connection needs to be tested and verified. In this paper, several tubings of different steel grades and anti-corrosion grades are connected into a string for the air-sealed performance test in room temperature and high temperature environments.The test results show that the air-sealed performance of the mixed anti-corrosion tubing premium connection with the different steel grade or anti-corrosion grade is maintained well, and the air-sealed performance of mixed anti-corrosion tubing premium connection is better at higher temperature than at room temperature.

关 键 词：防腐油管 复配油管 高温高压 气密性检验 

分 类 号：TE988.2[石油与天然气工程—石油机械设备]