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多极子阵列声波测井仪电子系统设计
Electronic System Design of a Multipole Acoustic Logging Tool
【摘要】 一种新型多极子阵列声波测井仪器由上电子短节、声系和下电子短节等3个相对独立的部分组成,能够通过单极、交叉偶极和四极声波全波信号准确获得纵波、横波和斯通利波时差,并分析地层的各向异性特征,求取孔隙度、估算渗透率、识别岩性等。详细地介绍仪器命令总线、高速局部数据总线和耐高温环境设计的关键技术,分析了仪器的上电子短节为仪器的主电子仓,安装有信号合成及放大滤波、数据采集和系统控制,下电子短节为仪器的发射激励电子仓等主要参数,各主要部分的功能,并给出了初步试验结果。
【Abstract】 Electronic system designing of a new-type multipole array acoustic logging tool is introduced.The tool is composed of 3 separate sections of upper electronic cartridge,sonic system and lower electronic cartridge.By the tool,slowness of compressional wave,shear wave and Stoneley wave can be accurately acquired by means of full wave signals of monopole,cross dipole and quadrupole mode,and then anisotropy of stratum can be analyzed.Main parameters of the tool,functions of its main blocks and key technologies are introduced and analyzed in detail,and preliminary test results are presented.
【Key words】 acoustic logging; cross dipole; array transducer; data acquisition; data processing;
- 【文献出处】 测井技术 ,Well Logging Technology , 编辑部邮箱 ,2008年01期
- 【分类号】P631.83
- 【被引频次】27
- 【下载频次】425