Quantitate evaluation of a oil pipeline crack using electromagnetic acoustic transducer (EMAT) and numerical simulation

Lazcano, I.; Wang, Q.

Abstract

Defect detection is of great importance in the oil and gas industry. Quantifying the depth of a defect is achievable with ultrasonic guided waves and Electromagnetic Acoustic Transducer (EMAT). Producing A0 Lamb wave mode and using their dispersive properties, the velocity variations of these waves travelling within the pipe boundaries can be converted into thickness using a fixed frequency. The Simultaneous Iterative Reconstruction Technique (SIRT) is employed to achieve this quantification, as well as Fast Marching Method (FMM) to consider the helical path and bent rays to obtain a thickness map of the pipeline. This project aims to to successfully detect a hole defect with a radius of 2.5mm using numerical simulation and the FMM and SIRT algorithm.

Citation

Lazcano, I., & Wang, Q. (2020, December). Quantitate evaluation of a oil pipeline crack using electromagnetic acoustic transducer (EMAT) and numerical simulation. Paper presented at CEFC 2020, Pisa, Italy

• Presentation Conference Type: Conference Paper (unpublished)
• Conference Name: CEFC 2020
• Deposit Date: Dec 16, 2020
• Public URL: https://durham-repository.worktribe.com/output/1139318
• Publisher URL: https://www.cefc2020.org/