The invention discloses a method for measuring and locating leakage of a gas pipeline network based on a geographic information system (GIS) and supervisory control and data acquisition technology (SCADA). The specific method comprises the following steps of establishing a gas pipeline network GIS system; reading and storing a pipe network graph, pipeline network attribute data and the like; collecting parameters of pressure, temperature and flow for each section of gas pipeline in real time by the SCADA system; comparing the collected parameters and the stored data and calculating; calculating the measuring values of the head end and the tail end of the pipeline and calculating the difference among parameter values; representing the abnormal pipeline information; searching extreme points and determining the pressure catastrophe points; calculating the position of the leakage point according to the parameters of gas consumption, temperature and pressure by using a leakage locating formula. By adopting SCADA, GIS and simulation calculations, the invention can realize self monitoring and locating of the gas pipelines with the advantages of quick measuring speed, high measuring precision, low missing report rate and false report rate and the like.

Title
Method for measuring and locating leakage of gas pipelines
Application Number
200910070101
Publication Number
101625071
Application Date
August 7, 2009
Publication Date
January 13, 2010
Inventor
Shao Min
Xiong Zhuang
Yang Zhao
Agent
Dong Yining
Assignee
Tianjin University
IPC
F17D 05/06