Two 36″ crude oil pipelines, each extending 400 m from trunkline to jetty, required comprehensive inspection following a history of corrosion and leaks. Their large diameter, mixed seam and spiral weld construction, and varying pipe conditions presented significant inspection challenges.

This case study demonstrates how combining Wavemaker^® guided wave screening with targeted QSR^® scanning provided an effective inspection strategy. Full‐length screening identified and prioritised indications, including highly localised corrosion, while QSR^® quantified remaining wall thickness with rapid coverage and reliable measurement of irregular defects. Severe wall loss was subsequently confirmed as deep MIC‐type pits following pipe removal, validating the inspection findings and demonstrating the advantages of this integrated approach over more time‐consuming conventional prove‐up methods.