试压过程中特殊螺纹油管接头冲刷腐蚀防护环挤出原因分析  

Causes Analysis on Corrosion Barrier Ring Squeezed out in Premium Connection Tubing during Pressure Test

作　　者：吕拴录[1,2] 彭建新[2] 高文祥[2] 杨双宝[2] 耿海龙[2] 王鹏[3] 刘文红 朱丽娟 LV Shuanlu;PENG Jianxin;GAO Wenxiang;YANG Shuangbao;GEN Hailong;WANG Peng;LIU Wenhong;ZHU Lijuan(Department of Material Science and Engineering,China University of Petroleum,Beijing 102249,China;Tarim Oil Field,Xinjiang 841000,China;Tubular Goods Research Institute of China National Petroleum Corporation,Xi’an,Shaanxi 710077,China)

机构地区：[1]中国石油大学(北京)材料科学与工程系 [2]中国石油塔里木油田 [3]中国石油集团石油管工程技术研究院

出　　处：《钻采工艺》2021年第4期123-126,共4页Drilling & Production Technology

摘　　要：某油田在特殊螺纹接头油管试压过程中,油管接头中装配的冲刷腐蚀防护环被挤出。文章对油管接头冲刷腐蚀防护环被挤出的原因进行了调查研究,并取样进行了上扣试验、气密封试验、水压爆破试验和复合加载气密封试验。试验结果表明,在试压过程中,油管接头中装配的冲刷腐蚀防护环被挤出的原因既与试验压力和泄压速度有关,也与冲刷腐蚀防护环尺寸有关。建议油田在试压过程中,降低试验压力。The corrosion barrier rings assembled in the tubing joint were squeezed out during the premium connection tubing during gas seal inspection in an oil field.This paper gives an investigation on the causes of corrosion barrier ring squeezed,and some tubing specimens were taken to do make up test,gas seal test,hydraulic pressure to failure test,and gas seal test with complex load.It was shown from the test result that the causes of corrosion barrier rings squeezed out in premium connection tubing during gas seal inspection were not only related to the test pressure and pressure release speed,but also related to the dimension of corrosion barrier ring.It was suggested that the test pressure should be reduced.

关 键 词：特殊螺纹接头油管 气密封检测 冲刷腐蚀防护环 挤出 

分 类 号：TE983[石油与天然气工程—石油机械设备]