Space-Time Pulsed Eddy Current Array for NDT of Wellbore Casings Based on MIMO Technique

C Liu, J Dang, L Yang, Y Zhou, X Luo… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In this article, we present a space–time pulsed eddy current (PEC) array for nondestructive
testing (NDT) of wellbore casings using a multiple-input multiple-output (MIMO) technique …

A uniform linear multi-coil array-based borehole transient electromagnetic system for non-destructive evaluations of downhole casings

B Dang, L Yang, C Liu, Y Zheng, H Li, R Dang, B Sun - Sensors, 2018 - mdpi.com
Borehole transient electromagnetic (TEM) techniques have been proven to be efficient for
nondestructive evaluations (NDEs) of metal casings using eddy-current properties …

Multiple-transmit focusing for the nondestructive testing of downhole casings based on borehole transient electromagnetic systems

C Liu, B Dang, H Wang, X Shen, L Yang, Z Ren… - IEEE …, 2020 - ieeexplore.ieee.org
Borehole transient electromagnetic (TEM) array has proven to be efficient for the downhole
nondestructive testing (NDT) of metal casings through the eddy-current property. However …

Synthesized magnetic field focusing for the non-destructive testing of oil and gas well casing pipes using pulsed eddy-current array

C Liu, B Dang, H Wang, L Yang, J Dang… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
In this article, we address the problem of synthesized magnetic field focusing (SMF) of the
pulsed eddy-current (PEC) technology for the non-destructive testing (NDT) of oil and gas …

[HTML][HTML] Sparsity-Based Nondestructive Evaluations of Downhole Casings Technique Using the Uniform Linear Array

J Dang, L Yang, Y Zhou, B Dang - Applied Sciences, 2024 - mdpi.com
Borehole pulsed eddy-current (PEC) systems based on uniform linear multicoil arrays
(ULMAs) perform efficient nondestructive evaluations (NDEs) of metal casings. However, the …

Auxiliary sensor-based borehole transient electromagnetic system for the nondestructive inspection of multipipe strings

B Dang, L Yang, N Du, C Liu, R Dang, B Wang, Y Xie - Sensors, 2017 - mdpi.com
Transient electromagnetic (TEM) techniques are widely used in the field of geophysical
prospecting. In borehole detection, the nondestructive inspection (NDI) of a metal pipe can …

Multiple-eccentric-sensor-based borehole transient electromagnetic system for nondestructive evaluation of oil and gas well casings

L Yang, R Dang, C Liu, B Dang, D Li - Proceedings of the International …, 2021 - Springer
Borehole transient electromagnetic (TEM) techniques are widely used for nondestructive
evaluation (NDE) of oil & gas well casings with eddy-current diffusion properties. In this …

Uniform Circular-Array-Based Borehole Pulsed Eddy-Current System for Asymmetry Defect Inspection in Downhole Casings

L Yang, B Dang, Z Ren, C Liu, J Dang, Y Zhao, B An… - Electronics, 2022 - mdpi.com
The inspection of wellbore casings has been extensively investigated owing to the
increasing concern for safety in oil and gas production. However, efficient techniques for …

EMD-based borehole TEM array signal denoising and baseline wander correction for NDT of downhole casings

B Dang, C Liu, L Yang, G Wang, M Wang, Z Ren… - IEEE …, 2020 - ieeexplore.ieee.org
Transient electromagnetic (TEM) techniques have been proven to be efficient for
nondestructive testing (NDT) operations due to their pulsed eddy-current properties …

Eccentric array-based borehole transient electromagnetic system for NDT of multipipe strings in sidetrack well

Y Ling, D Ruirong, D Bo, G Rui - Journal of Physics: Conference …, 2021 - iopscience.iop.org
In the middle and late stage of oilfield development, the sidetracking technology is widely
used for restoring the production of stripper well, damaged well and abandoned well. In this …