Three-Dimensional Ultrasonic Reverse-Time Migration Imaging of Submarine Pipeline Nondestructive Testing in Cylindrical Coordinates
Submarine pipelines are a safe and energy-efficient mode of gas transport. However, due to the complex manufacturing process and harsh operating environment, submarine pipelines are subject to fatigue cracks under long-term cyclic loading. A comprehensive and high-precision characterization strategy for submarine pipelines can effectively prevent potential safety hazards and have significant economic and social repercussions. As a matter of fact, pipeline defects cannot be reliably detected with current traditional 2D methods. On the other hand, in ultrasonic testing, cylindrical geometry increases the complexity of the 3D wave field in the submarine pipeline space and significantly influences the accuracy of the detection results. In this paper, we put forward a novel method for 3D ultrasonic image testing that is suitable for cylindrical coordinates. In order to accurately simulate the ultrasonic signal received from pipelines, we generalize the 3D staggered-grid finite-difference method from Cartesian coordinates to cylindrical ones and simulate the full wave field in the 3D pipeline space. Then, signal processing is performed on the ultrasound simulation records, and 3D reverse-time migration imaging of submarine pipeline defects can be effectively achieved using the reverse-time migration method and cross-correlation imaging conditions. The results obtained from simulations and real field data show that the proposed method provides high-quality 3D imaging of defects in pipelines, taking into account multiple scattering and mode conversion information at the bottom of the defects.
National Natural Science Foundation of China;
|WOS Research Area|
Engineering ; Oceanography
Engineering, Marine ; Engineering, Ocean ; Oceanography
|WOS Accession No|
Cited Times [WOS]:2
|Document Type||Journal Article|
|Department||Department of Earth and Space Sciences|
1.Key Laboratory of Exploration Technologies for Oil and Gas Resource,Ministry of Education,Yangtze University,Wuhan,430100,China
2.College of Marine Science and Technology,China University of Geosciences,Wuhan,430074,China
3.Hubei Subsurface Multi-Scale Imaging Key Laboratory,School of Geophysics and Geomatics,China University of Geosciences,Wuhan,430074,China
4.Department of Earth and Space Sciences,Southern University of Science and Technology,Shenzhen,518055,China
Peng，Daicheng,Cheng，Fei,She，Xiaoyu,et al. Three-Dimensional Ultrasonic Reverse-Time Migration Imaging of Submarine Pipeline Nondestructive Testing in Cylindrical Coordinates[J]. Journal of Marine Science and Engineering,2023,11(7).
Peng，Daicheng,Cheng，Fei,She，Xiaoyu,Zheng，Yunpeng,Tang，Yongjie,&Fan，Zhuo.(2023).Three-Dimensional Ultrasonic Reverse-Time Migration Imaging of Submarine Pipeline Nondestructive Testing in Cylindrical Coordinates.Journal of Marine Science and Engineering,11(7).
Peng，Daicheng,et al."Three-Dimensional Ultrasonic Reverse-Time Migration Imaging of Submarine Pipeline Nondestructive Testing in Cylindrical Coordinates".Journal of Marine Science and Engineering 11.7(2023).
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