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Vibration and horizontal directivity analysis of transmitting transducer for acoustic logging while drilling

文献类型：期刊论文

作者Gou, Yang1,2,3,4; Fu, Xin1,2,3,4
刊名JOURNAL OF GEOPHYSICS AND ENGINEERING
出版日期2021-06-01
卷号18期号:3页码:379-391
关键词acoustic LWD piezoelectric transducer coupled vibration resonance frequency equation acoustic logging while drilling numerical simulation
ISSN号1742-2132
DOI10.1093/jge/gxab021
英文摘要Radially polarized open-cylindrical piezoelectric transducers are widely used in the field of acoustic logging while drilling (LWD). Unlike the wireline logging transducer, the structure of the acoustic LWD transducer is an open structure; in this case, its radial vibration is accompanied by apparent circumferential vibration. In this paper, based on the two-dimensional wave equations and electrostatic charge equation, according to the free boundary conditions of the transducer, the resonance frequency equation of radial-circumferential coupled vibration for the acoustic LWD transducer is obtained. The vibration modal and resonance frequency for transducers of several typical sizes are simulated using COMSOL software. The results show that when the geometrical size of the transducer satisfies certain conditions, the theoretical calculation and the numerical analysis are in good agreement and the relative error is controlled below 3%. Meanwhile, the horizontal directivity of the LWD transducer after actual installation is discussed, and it is found that adding appropriate coupling materials can improve the monopole sound field radiation. So, it is expected that this work can serve as a reference for the acoustic LWD transducer design and install.
WOS关键词MONOPOLE
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14020301]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000720773700005
出版者OXFORD UNIV PRESS
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/103851]  
专题地质与地球物理研究所_深部资源勘探装备研发
地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Gou, Yang
作者单位1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, CAS Engn Lab Deep Resources Equipment & Technol, Beijing 100029, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Gou, Yang,Fu, Xin. Vibration and horizontal directivity analysis of transmitting transducer for acoustic logging while drilling[J]. JOURNAL OF GEOPHYSICS AND ENGINEERING,2021,18(3):379-391.
APA Gou, Yang,&Fu, Xin.(2021).Vibration and horizontal directivity analysis of transmitting transducer for acoustic logging while drilling.JOURNAL OF GEOPHYSICS AND ENGINEERING,18(3),379-391.
MLA Gou, Yang,et al."Vibration and horizontal directivity analysis of transmitting transducer for acoustic logging while drilling".JOURNAL OF GEOPHYSICS AND ENGINEERING 18.3(2021):379-391.

入库方式： OAI收割

来源：地质与地球物理研究所

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