title: Literature Review: Theory and Application of In-Line Inspection Technologies for Oil and Gas Pipeline Girth Weld Defection.
abstract: Girth weld cracking is one of the main failure modes in oil and gas pipelines; girth weld cracking inspection has great economic and social significance for the intrinsic safety of pipelines. This paper introduces the typical girth weld defects of oil and gas pipelines and the common nondestructive testing methods, and systematically generalizes the progress in the studies on technical principles, signal analysis, defect sizing method and inspection reliability, etc., of magnetic flux leakage (MFL) inspection, liquid ultrasonic inspection, electromagnetic acoustic transducer (EMAT) inspection and remote field eddy current (RFDC) inspection for oil and gas pipeline girth weld defects. Additionally, it introduces the new technologies for composite ultrasonic, laser ultrasonic, and magnetostriction inspection, and provides reference for development and application of oil and gas pipeline girth weld defect in-line inspection technology.
authors.affiliation: School of Mechanical and Transportation Engineering, China University of Petroleum, Beijing 102249, China. qsfeng@petrochina.com.cn.|PetroChina Pipeline Company, Langfang 065000, China. qsfeng@petrochina.com.cn.
authors.forename: Qingshan
authors.initials: Q
authors.lastname: Feng
authors.affiliation: PetroChina Pipeline Company, Langfang 065000, China. kjlirui@petrochina.com.cn.|School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China. kjlirui@petrochina.com.cn.
authors.forename: Rui
authors.initials: R
authors.lastname: Li
authors.affiliation: School of Materials Science and Energy Engineering, FoShan University, Foshan 528000, China. niebh@petrochina.com.cn.
authors.forename: Baohua
authors.initials: B
authors.lastname: Nie
authors.affiliation: Institute of Disaster Prevention, Sanhe 065201, China. liushucong@cidp.edu.cn.
authors.forename: Shucong
authors.initials: S
authors.lastname: Liu
authors.affiliation: PetroChina Pipeline Company, Langfang 065000, China. lyzhao@alum.imr.ac.cn.
authors.forename: Lianyu
authors.initials: L
authors.lastname: Zhao
authors.affiliation: School of Mechanical and Transportation Engineering, China University of Petroleum, Beijing 102249, China. hzhang@cup.edu.cn.
authors.forename: Hong
authors.initials: H
authors.lastname: Zhang
keywords: EMAT; defect; in-line inspection; magnetic flux leakage inspection; pipeline girth weld; ultrasonic inspection