Field study on pipeline parameter identification using fluid transient waves with time-domain analysis

Abstract

This paper presents some results from a field study on the identification of pipeline properties (such as impedance, wave speed, wall thickness and length) using fluid transient waves with time-domain analysis. Branches or off-takes, changes in pipeline material and changes in pipeline diameter are identified in a field pipeline through transient testing. The corresponding pipeline parameters are determined through analysis of the measured transient pressure wave reflections. The results are generally consistent with the information shown in the GIS drawings and/or the design drawings, which verifies the usefulness of the time-domain approach for pipeline parameter identification using fluid transient waves. Challenges in field applications are also identified and discussed.