期刊文献+

三叠片型偶极声波测井换能器的有限元设计 被引量:11

The Design of Sandwich Dipole Transducer Based on Finite Element Method
下载PDF
导出
摘要 三叠片型偶极声波测井换能器可以用来测量快速地层和慢速地层的横波速度。基于有限元方法,对三叠片型偶极发射声波换能器进行结构仿真与设计。系统探讨了换能器尺寸和结构各参量的改动对换能器频率特性和辐射特性的影响。当压电陶瓷片的厚度增加、金属基片的厚度增加,或者压电陶瓷片的长度增加时,换能器的谐振频率升高;当金属基片的长度增加时,换能器的谐振频率降低。换能器的声辐射效率随压电陶瓷片或者金属基片长度的增加而增加,随它们厚度的增加而降低。 Sandwich dipole transducers are used for measuring shear wave velocities in both hard and soft formations in acoustic well logging. Numeral simulations with finite element method are conducted for evaluating the efficiency of sandwich dipole transducer. Detailed is effect of modifying the transducer's physical sizes and other performance parameters on its frequency character and radiation property. Our analysis demonstrates that, the natural frequency will increase as the ceramic slices thickness, metal slice thickness or ceramic slice length increases, while the natural frequency will decrease as the length of metal slices increases. Numeral simulation also shows either the increase of the length or width of ceramic and metal slices, or the decrease of their thickness, will cause an increase of the transmitting efficiency of dipole transducer.
出处 《测井技术》 CAS CSCD 北大核心 2009年第2期106-109,共4页 Well Logging Technology
基金 国家自然科学基金重点项目(10534040)
关键词 声波测井 偶极声波 换能器 有限元方法 sonic logging, dipole, transducer, finite element method
  • 相关文献

参考文献7

二级参考文献18

  • 1夏克文,朱军,武向萍,肖炜.阵列声波成象反射CT技术初探[J].测井技术,1994,18(3):160-163. 被引量:8
  • 2夏克文.超声成像仪简介[J].石油仪器,1994,8(2):112-114. 被引量:1
  • 3须方,朱正亚.多极子声源的横波测井[J].地球物理测井,1990,14(5):297-304. 被引量:7
  • 4刘子华,张金钟,冯延春.偶极子横波测井方法的实验研究[J].测井技术,1996,20(3):157-161. 被引量:3
  • 5Tang X M, Cheng N Y, Arthr Cheng C H. Identifying and Estimating Formation Stress from Borehole Monopole and Cross-diplole Acoustic Measurement [A]. SPWLA 40th Annual Logging Symposium, May 30-Jun 3,1999.
  • 6Fogal J, Kessler C, Varsimis G. Application of Shear Anisotropy from a New Generation Crossed Dipole Acoustic Tool[A]. SPE Paper 77792 pesented at the 2002 Annual Technical Conference and Exhibition Held in San Antonio, Texas 29 September-2 October, 2002.
  • 7Kessler C , Varsamis G. A New Generation Crossed Dipole Logging Tool: Design and Case Histories [A]. SPE Paper 71740 presented at the 2001 SPE Annual Technical Conference and Exhibition Held in New Orleans, Louisiana, 30 September-3 October, 2001.
  • 8Fredy Jimenez Aquila PEMEX, Ciudad dd Carmen. Using Cross Dipole Sonic Anisotropy Data to Improve Reservoir Understanding in the Southern/Marine Areas of Mexico [A].SPE Paper prepared for the SPE Annual Technical Conference and Exhibition Held in Denver,
  • 9Kenneth D Rolt.History of flextensional electroacoustic transducer[J].J Acoust Soc Am,1990,87(3),1340-1349.
  • 10Harvey c Hayes.Sound generating and directing apparatus[P].U.S.Patent:2,064,911,1936.

共引文献63

同被引文献46

引证文献11

二级引证文献34

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部