E5-b3 - Reflection and Attenuation Analysis of Ultrasonic Pitch-Catch Measurement in Oil Wells with Casing Irregularity
- Event
- 2025 ICU PADERBORN - 9th International Congress on Ultrasonics
2025-09-21 - 2025-09-25
Paderborn - Band
- Lectures
- Chapter
- E5-a - Reservoir Acoustics and Borehole Acoustic Logging
- Author(s)
- F. Cheng, X. L. Chen, J. L. Pan, X. H. Gu - , Y. L. Zhou, X. M. Tang - China University of Petroleum, Qingdao (China)
- Pages
- 303 - 306
- DOI
- 10.5162/Ultrasonic2025/E5-b3
- ISBN
- 978-3-910600-08-9
- Price
- free
Abstract
In cement-bonding evaluation, ultrasonic Lamb waves have been widely studied and applied in regular casing wells. However, its feasibility in irregular casing wells remains unknown. The relationship between ultrasonic Lamb waves and casing irregularity based on finite element time-domain simulation was investigated. According to the Lamb wave propagation, irregularity interfaces were determined by the Lamb wave attenuation and reflection wave amplitude changes. We propose a novel measurement method to detect surface unevenness of housings. This study assists in irregular casing cement-bonding evaluation.