焊管Issue(3)：52-56,5.
服役速度管柱性能分析
Performance Analysis on Service Velocity String
摘要
Abstract
In order to better understand the velocity string performance in the gas well after service, the velocity string in a gas well served for 3 years was pulled out. It sampled from wellhead position and bottom location respectively to carry out performance tests, including appearance, wall thickness, metallographic, mechanical test, etc. The results showed that the velocity string after 3 year service, the pipe body was uniform corrosion, the weld properties were without deterioration. The tensile performance, flattening, expanding and hydrostatic test of sample pipe can still satisfy the requirements of API SPEC 5ST standard, and the fatigue performance did not decrease obviously. It indicated that under this well condition the velocity string after 3 years of service, the performance of pipe body can still meet the requirements of continuous service.关键词
焊管/连续油管/速度管柱/服役/疲劳/性能/腐蚀Key words
welded pipe/coiled tubing (CT)/velocity string/service/fatigue/performance/corrosion分类
能源科技引用本文复制引用
李鸿斌,毕宗岳,余晗,张晓峰,汪海涛..服役速度管柱性能分析[J].焊管,2015,(3):52-56,5.基金项目
连续管制造检测技术及产业化研究（2011CZB-001）。 （）
