Ultrasonic Lamb wave detection of a channel in a double-casing well

Da Chen; Yiguo Yin; Chao Zhang; Shuhua Chen; Wei Guan

doi:10.1016/j.ultras.2022.106916

Ultrasonic Lamb wave detection of a channel in a double-casing well

Ultrasonics. 2023 Apr:130:106916. doi: 10.1016/j.ultras.2022.106916. Epub 2022 Dec 27.

Authors

Da Chen¹, Yiguo Yin², Chao Zhang¹, Shuhua Chen³, Wei Guan⁴

Affiliations

¹ Department of Astronautics and Mechanics, Harbin Institute of Technology, Harbin 150001, China.
² Department of Astronautics and Mechanics, Harbin Institute of Technology, Harbin 150001, China; Beijing Institute of Astronautical Systems Engineering, Beijing 100000, China.
³ CAEP Software Center for High Performance Numerical Simulation, Mianyang 621000, China.
⁴ Department of Astronautics and Mechanics, Harbin Institute of Technology, Harbin 150001, China. Electronic address: guanw@hit.edu.cn.

PMID: 36587548
DOI: 10.1016/j.ultras.2022.106916

Abstract

In cement-bonding evaluation, channel detection by ultrasonic Lamb waves has been widely studied and applied in single-casing wells. However, its feasibility in double-casing wells remains unknown. The relationship between ultrasonic Lamb waves and channels based on finite-difference time-domain simulations was investigated. According to the Lamb wave propagation, channels near interfaces were determined by the Lamb wave amplitude changes. A channel detection approach in double-casing wells was proposed. The ability of the proposed strategy to accurately detect the spatial position and geometric shape of the channels in double-casing wells was seen. This study provided guidance in double-casing cement-bonding evaluation.

Keywords: Algorithm; Detection; Interface; Lamb wave; Ultrasonic modeling.