Prof. Liu Bin, Invited Speaker at the 2026 FENDT Forum
Magnetic-Stress Internal Detection Technology and Application for Composite Defects in Long-Distance Oil and Gas Pipelines
As critical national infrastructure, oil and gas pipelines are widely recognized as the lifeline of energy supply. The total mileage of onshore and subsea pipeline networks in China has exceeded one million kilometers, and the operational safety of such pipelines bears close relevance to public life and property security, economic growth, geopolitical interests as well as ecological environmental protection. In-line inspection (ILI) technology is internationally acknowledged as the most effective approach for the safety maintenance of oil and gas pipelines. Against the backdrop of the vigorous strategic deployment of global hydrogen energy storage and transportation and the rapid construction of high-grade steel natural gas pipelines, diversified new forms of pipeline damages emerge continuously accompanied by frequent sudden accidents. Conventional in-line inspection technologies are confronted with limitations including inaccurate detection and missed inspection when identifying composite defects consisting of macroscopic flaws such as hydrogen-induced cracks and delayed cracks coupled with mechanical stress. To tackle the aforementioned challenges, this presentation centers on the magneto-stress in-line inspection technique targeting composite defects in long-distance oil and gas transmission pipelines. It elaborates on signal characteristics of composite defects featured by coexisting macroscopic imperfections and micro-damages induced by stress concentration, which originate from pipeline stress corrosion cracking and hydrogen embrittlement, and addresses core scientific bottlenecks involving signal identification, decoupling and quantitative characterization for stress-based in-line inspection of composite defects.
Biography

Prof. Liu Bin is a full professor and doctoral supervisor, distinguished Professor under the National High-End Talent Program, Recipient of Special Government Allowance from the State Council, Leading Talent of Liaoning Revitalization Talent Program and Outstanding Teacher of Liaoning Province. He has presided over key research projects funded at the national, provincial/ministerial and enterprise strategic levels. His research honors include the First Prize of Liaoning Provincial Science and Technology Progress Award, First Prize of Liaoning Provincial Technical Invention Award, First Prize of Liaoning Provincial Natural Science Academic Achievement Award, and First Prize of Science and Technology Progress Award issued by China Instrument and Control Society.
Leading his research team, he has resolved a series of fundamental scientific challenges concerning the on-line inspection of micro-damage in oil and gas pipelines. The relevant research outcomes have been deployed in landmark pipeline projects across China such as the West-to-East Gas Transmission Project and the South-to-North Gas Diversion Project, yielding remarkable social and economic benefits.