Determining fluid leakage volume in pipelines

An apparatus for determining leakage volume of fluid in a transportation pipeline, the apparatus comprising:

• a signal-obtaining unit, configured to obtain negative pressure wave signals detected by at least two pressure sensors arranged on the pipeline;
• a pressure-determining unit, configured to determine a pressure signal at leakage location according to the negative pressure wave signals;
• a rate-determining unit, configured to determine a leakage rate during a leakage period based on the pressure signal at the leakage location according to a leakage model;
• and
• a volume-determining unit, configured to determine the leakage volume of the fluid in the pipeline based on the leakage rate and the leakage period.

A computer readable non-transitory article of manufacture tangibly embodying computer readable instructions which, when executed, causes a computer to carry out the steps of a method, the method comprising:

• obtaining negative pressure wave signals detected by at least two pressure sensors arranged on the pipeline;
• determining a pressure signal at leakage location based on the negative pressure wave signals;
• determining a leakage rate during a leakage period based on the pressure signal at the leakage location according to a leakage model;
• and
• determining the leakage volume of the fluid in the pipeline based on the leakage rate and the leakage period.