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Drilling & Production Technology ›› 2021, Vol. 44 ›› Issue (4): 123-126.

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

LV Shuanlu1,2, PENG Jianxin2, GAO Wenxiang2, YANG Shuangbao2, GEN Hailong2, WANG Peng3, LIU Wenhong3, ZHU Lijuan3   

  1. 1 . Department ofMaterial Science and Engineering, China University ofPetroleum, Beijing 102249, China; 2. Tarim Oil Field, Xinjiang 841000, China; 3. Tubular Goods Research Institute of China National Petroleum Corporation, Xi’an, Shaanxi 710077, China
  • Online:2021-07-25 Published:2021-07-25

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

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３， 朱丽娟３   

  1. 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
  • 作者简介:吕拴录(1957-) , 正高级工程师,1983 年毕业于西安交通大学金属材料专业, 从事石油管材失效分析，质量检验和标准化工作。地址: (710005) 陕西省西安市曲江新区碧水西岸南湖 1 号, 电话:13565769572, E-mail: lvshuan@ 163 . com

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Abstract:

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.

Key words: premium connection tubing, gas sealability inspection, corrosion barrier ring;squeeze out

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。

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

ISSN 1006-768X
CN 51-1177/TE
主管单位：中国石油天然气集团有限公司
主办单位：四川石油管理局有限公司
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