Assessment of condition of underground collector lines situated inside the technological complexes of underground storage facilities

Abstract

The evaluation of status of underground gas pipeline systems operating for several decades becomes a decisive factor of the decision making for their further safe and reliable operation. The decision becomes crucial especially in cases when piping is installed within a facility without the cathodic protection. The evaluation and inspection of underground gas manifolds requires a specific approach tailored for the respective manifolds.In 2003 NAFTA, the company initiated an extensive plan of the underground gas manifolds diagnostics and evaluation. The results were presented within the Working Committee WOC2 at the 23rd World Gas Congress in Amsterdam

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