Integration of fiber optics and rarefaction wave for pipeline leak quantification

A method, comprising:

• detecting one or more parameters of a leak event via a fiber optic cable extending along a fluid conduit;
• determining an estimated time stamp associated with an expected pressure change for one or more locations along the fluid conduit based on the one or more parameters and a rarefaction wave model;
• receiving one or more measured pressure values at the one or more locations along the fluid conduit;
• determining whether the expected pressure change occurs at the estimated time stamp for each of the one or more locations by comparing the one or more measured pressure values to one or more expected pressure values;
• and
• generating a notification indicative of one or more characteristics of the leak event based on the comparison of the one or more measured pressure values and the one or more expected pressure values.

A non-transitory, tangible, computer readable medium comprising instructions that, when executed by a processor, causes the processor to perform operations comprising:

• detecting one or more parameters of a leak event via a fiber optic cable extending along a fluid conduit;
• determining an estimated time stamp associated with an expected pressure change for one or more locations along the fluid conduit within a threshold distance from the leak event based on the one or more parameters and a rarefaction wave model;
• determining whether the excepted pressure change occurs at the estimated time stamp for each of the one or more locations along the fluid conduit based on a comparison between one or more measured pressure values at the one or more locations to one or more expected pressure values at the one or more locations;
• and
• generating a notification indicative of one or more characteristics of the leak event based on the comparison between the one or more measured pressure values at the one or more locations to the one or more expected pressure values at the one or more locations.