天然气与石油2017，Vol.35Issue(4)：21-24,35,5.DOI:10.3969/j.issn.1006-5539.2017.04.004
在役双金属复合管失效后抢险试压方案优化
Optimization of Emergency Pressure Test After Failureof Bimetal Composite Pipe
摘要
Abstract
For the buried double metal composite pipe with frequent weld corrosion perforation, it is difficult to evaluate the remaining life through detection.Preliminary judgment of pipeline safety can be performed upon pipeline pressure test.But for double metal composite pipes that are in service with serious corrosion, there are no related standard specifications for pressure test.Through analysis, standard for pressure test of newly-established pipeline is infeasible to this kind of pipeline.Test pressure shall be reduced to make it greater than the operating pressure and lower than the design pressure.After passing pipeline nitrogen replacement, pressure shall be gradually established and tested according to the curve.Start-up shall be conducted after passing leak detection to ensure the safety of pipeline under operation pressure and small range of fluctuation.It is proved that this method is feasible and can be promoted in similar projects.关键词
管道试压/双金属复合管/管道评估/管道失效/抢险Key words
Pipeline pressure test/Bimetal composite pipe/Pipeline evaluation/Pipeline failure/Emergency rescue引用本文复制引用
潘旭,代平,刘志明,刘文超,陈贺龙..在役双金属复合管失效后抢险试压方案优化[J].天然气与石油,2017,35(4):21-24,35,5.基金项目
中国石油天然气集团公司重点工程"克深2区块集输系统完善工程"(S 2016-103 D) （S 2016-103 D）
