Pipelines are the safest and most economic transport systems for natural gas.In the long-term life of the pipeline,there will inevitably be a rupture,leak or damage caused by manmade events or by natural disasters.Leaks may generate dangerous clouds of gas which escape from high-pressure pipes and produce serious fires and explosions,endangering the lives and property of people in and around the area.Monitoring natural gas pipeline leaks will,in time,discover and locate these dangerous situations and reduce loss.,The core contents of leak monitoring are the accurate location of leaks as well as rapid identification of different signal sources,thus reducing the occurrence of false alarms.There are a variety of approaches currently used by pipeline operators to detect leaks in natural gas pipelines.This paper describes a developed leak detection approach based on Real Time Transient Model (RTTM) for leak detecting in natural gas pipelines which has been used in Central Asia/China Gas Pipeline.The advantage of this developed approach is that a leak which occurs in all flow conditions (including operational transients) can be detected.This RTTM model provides a sensitive alarm threshold and takes a very short time to detect leaks in gas pipelines.It can identify and locate small leaks in seconds.
Leak Detection Pipeline RTTM Natural Gas Method
Jianhui Xu Ping Zhang Fuqiang Shan Zhongwen Nie Yongzhi Yu Juhua Mo Yexin Luo
Lead Instrumentation &Automation Engineer, China Petroleum Pipeline Engineering Corporation; No.146, Senior Process Engineer, Trans-Asia Gas Pipeline Company Limited(TAPLine); No.5, DongzhiMenNorth Str Director of Instrumentation &Automation Department, China Petroleum Pipeline Engineering Corporation Director Engineer of Instrumentation &Automation Department, China Petroleum Pipeline Engineering Co Instrumentation &Automation Engineer, China Petroleum Pipeline Engineering Corporation; No.146, Hepi PH.D, Instrumentation &Automation Engineer, China Petroleum Pipeline Engineering Corporation; No.146 Process Engineer, China Petroleum Pipeline Engineering Corporation; No.146, Heping Road, Lang Fang 0