| 赵子萌,陈文辉,黄飞,侯春会,张永超.单极子声波测井探测器数值模拟优化设计*[J].,2025,44(1):97-104 |
| 单极子声波测井探测器数值模拟优化设计* |
| Optimized design of monopole acoustic logging detector by numerical simulation |
| 投稿时间：2023-08-31 修订日期：2024-12-30 |
| 中文摘要: |
| 单极子探测器是声波测井仪器常用的探测器，其性能直接影响声波测井的数据质量。通过数值模拟建立“水域-透声窗-压电陶瓷圆管-油腔-骨架”模型，计算了探测器在多物理场耦合作用下的振动和辐射特性，重点研究了不同结构参数调整对探测器声学性能的影响，得到性能更优的单极子探测器尺寸参数和更合适的透声窗材料。结果表明，单极子探测器的声学性能受压电陶瓷圆管厚度和内径变化影响较大，对压电陶瓷圆管高度变化不敏感；在一定范围内增大内侧油腔体积能够提升探测器灵敏度；2mm厚度的玻璃钢具有良好的透声效果，同时兼具一定的力学性能，是作为探测器透声窗的合适选择。研究对单极子声波测井探测器的优化具有指导意义。 |
| 英文摘要: |
| Monopole transducer is a commonly used detector in acoustic logging instruments, and its performance directly affects the data quality of acoustic logging. Through numerical simulation to establish the model of "water - transmissive window - piezoelectric ceramic tube - oil cavity - skeleton", the vibration and radiation characteristics of the detector under the multi-physical field coupling are calculated, and the effects of different structural parameters on the acoustic performance of the detector are investigated to obtain the better transducer dimensions and more suitable transmissive window material. The results show that the acoustic performance of the detector is greatly affected by the changes of the thickness and inner diameter of the piezoelectric ceramic tube, and is insensitive to the changes of the height of the piezoelectric ceramic tube; increasing the volume of the inner oil cavity within a certain range can improve the sensitivity of the detector; the glass fiber reinforced plastic (FRP) with a thickness of 2mm has great acoustic transmittance, and also possesses certain mechanical properties, which is an appropriate choice for the detector’s acoustic window. The research has a guiding significance for the optimization of monopole acoustic logging detectors. |
| DOI：10.11684/j.issn.1000-310X.2025.01.009 |
| 中文关键词: 声波测井换能器 数值模拟 单极子 透声材料 |
| 英文关键词: Acoustic logging transducer Numerical simulation Monopole Acoustic materials |
| 基金项目:“深地声学探测器测试应用”（2022YFF0709703） |
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