Saturation/unsaturated magnetic field analysis and unit structure optimization of small-diameter pipeline
Year: 2025
Type: conference-paper
Abstract: In small-diameter pipelines, where space is constrained, achieving a consistent magnetic flux is vital for enhancing the sensitivity and reliability of defect detection. This aspect is particularly crucial for applications involving small-diameter pipelines. The primary objective of this study is to identify the optimal dimensional parameters of the excitation unit for 4-inch small-diameter magnetic flux leakage (MFL) tools. The Finite Element Method (FEM) was employed to analyze the evolution patterns of the magnetic field at defect sites across various operational parameters. Additionally, the relationships between these influencing factors within the magnetic circuit and the induced magnetic field in the pipe wall were established. It is of great significance to promote the development of safety detection technology for small-diameter pipelines in oil field gathering and transportation.
DOI: 10.58286/30999
Authors: Jia Zhang, Shaomu Wen, Chuanjun Han, Jie Shu, Mo He, Changchao Qi, Pengcheng Li
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Funder: PetroChina Company Limited
OpenAlex ID: W4409730734