Diagnosis and Localization of Pipeline leak Based on Numerical Methods of the Inverse Problem Differential Equations
According to the operating characteristics of gas pipeline during tightness inspection,the partial differential equation model is established for a single point leak of gas distribution networks in pressure testing.Based on Inversion of differential equations boundary conditions,the localization of leak location and leak intensity is transformed into inverse problems about partial differential equations,and then deriving mathematical expressions of leak location,leak intensity attenuation coefficient and leakage coefficient by using Laplace transform.the methods of numerical calculation is constructed by applying the principle of compressed image,at last an example is analyzed and calculated,the analysis of results shows that the calculated values better match with the actual situation,and essentially meet the request of leak detection in pressure test of gas transmission and distribution pipeline systems.
Pipelines Pressure test Leakage model Laplace transform
Yuan Tian Xuefen Zhao Xiang Zhen Jian Ou
Chong Qing University of Science & Techology PetroChina Southwest Oil & Gasfield Company, Refining and Chemical Engineering Division Petro China Southwest Oil&Gasfield Company
国际会议
北京
英文
548-556
2012-10-14（万方平台首次上网日期，不代表论文的发表时间）