测井技术2024，Vol.48Issue(4)：482-487,6.DOI:10.16489/j.issn.1004-1338.2024.04.008
正交偶极声波测井换能器全尺寸数值模拟
Full-Scale Numerical Simulation for Cross-Dipole Acoustic Logging Transducer
摘要
Abstract
The cross-dipole acoustic logging transducer is a key component of multipole acoustic logging tools.Its frequency response and directive property directly affect the quality of dipole acoustic logging data and the accuracy of formation evaluation.In the theory of dipole acoustic logging,the dipole source is an ideal point source,while the cross-dipole acoustic logging transducer is in big size and cannot be regarded as an ideal dipole point source in terms of geometric dimensions.This paper conducts full-scale numerical simulation research on cross-dipole acoustic logging transducer based on the finite element method,analyzes the frequency response and directional performance of cross-dipole transducer in water,and points out the reasons for their directional performance changing with frequency.The results show that the directivity of the orthogonal transducer varies with frequency,in most frequency bands,the directionality of cross-dipole acoustic logging transducer differs significantly from that of ideal dipole source.关键词
声波测井/偶极声波/声波测井换能器/指向性/数值模拟Key words
acoustic logging/dipole acoustic/acoustic logging transducer/directive property/numerical simulation分类
天文与地球科学引用本文复制引用
时鹏,陈文辉,刘付火,强晟,杨帆,张永超..正交偶极声波测井换能器全尺寸数值模拟[J].测井技术,2024,48(4):482-487,6.基金项目
中国石油天然气集团有限公司项目"175℃/205℃高灵敏度声波测井换能器研制"(2020B-3713) （2020B-3713）
中国石油集团测井有限公司科技攻关项目"过套管声电一体化测井关键技术"(CNLC2023-9C01) （CNLC2023-9C01）
