摘要
国内的声波测井仪外壳筒体多源于仿制,无法在制造前预知其性能。为了研制出隔声性能更好的筒体,对有无隔声槽的外壳筒体的声传播特性进行了研究。基于自行设计的仪器外壳筒体的结构,分别建立了有无隔声槽的声传播特性计算模型,利用有限元软件分析了雷克子波在有无隔声槽外壳筒体中的传播特性,比较了3个方向的首达波时延和声衰减量。研究结果表明,该建模计算方法可行,有隔声槽的筒体声传播特性优于无隔声槽的筒体声传播特性,并满足测井要求。该研究成果为国内声波测井仪外壳筒体的研制提供了理论依据。
Most of the shells of the sonic logging tools in domestic are the results of imitation, which are una?ble to predict the sound insulation performance before manufacturing?To develop a shell with better sound insulation performance, the sound propagation characteristics of the shell with and without acoustic insulation groove have been studied?Based on self?designed shell structure, the calculation model of sound propagation characteristic of shell has been established?The Ricker wave propagation characteristics in the shell have been analyzed by using fi?nite element analysis software?The time delay and attenuation of the first waves in three directions have been com?pared?The study results show that the established modeling method is feasible?The sound propagation characteristic of shell with acoustic insulation groove is better and could meet the logging requirements?The research could provide theoretical bases for the development of shell of domestic acoustic logging tool.
出处
《石油机械》
2016年第2期11-16,共6页
China Petroleum Machinery
基金
中国石油天然气集团公司项目"方位远探测声波反射波成像测井仪器研制"(2014B-4011)
关键词
声波测井
仪器外壳
声传播特性
隔声槽
ANSYS
acoustic logging
instrument shell
sound propagation characteristics
acoustic insulation groove
ANSYS
作者简介
王贺,女,生于1992年,在读硕士研究生,研究方向为机械设计及理论.地址：（102249）北京市昌平区.E-mail：562882282＠qq.com.
