文章检索
首页» 过刊浏览» 2020» Vol.5» Issue(3) 337-348     DOI : 10.3969/j.issn.2096-1693.2020.03.029
最新目录| | 过刊浏览| 高级检索
基于嵌入式技术的声波测井阵列式声系测试系统
刘栋,鞠晓东 ,卢俊强,门百永
中国石油大学(北京)油气资源与探测国家重点实验室,北京 102249
Embedded-technology-based acoustic logging array sonde testing system
LIU Dong, JU Xiaodong, LU Junqiang, MEN Baiyong
State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum-Beijing, Beijing 102249, China

全文:   HTML (1 KB) 
文章导读  
摘要  为增加测井解释的准确性,目前声波测井仪器正向复杂阵列化发展,仪器的复杂化提高了对稳定性的要 求,同时也增加了仪器声系组装、调试的难度。为提高测井设备研发和现场故障诊断的效率,更好地验证声波 测井阵列式声系的有效性、性能一致性,设计并实现了一种基于现场可编程门阵列(FPGA)的阵列式声系 检测 系统,并应用其进行声波测井阵列式声系测试。测试中,通过标准接收换能器测试了测试系统发射装置的幅度、 频率调整范围;通过标准发射换能器验证了测试系统接收装置的接收一致性。并将测试系统应用到实际声系的 测试中,通过理论模拟与实际测量数据的对比分析,发现该系统能够很好地检测接收声系各通道的有效性和一 致性,并单独对发射声系的单极子和偶极子模式进行性能评价,同时可以对换能器阵列进行刻度,为实际测井 中资料处理作参考。本系统主要包括以下两个部分:基于嵌入式uclinux系统和网络互连的主从式系统架构,以 基于ARM技术的芯片为硬件核心,上位机通过以太网接口与嵌入式前端机通讯,实现发送控制命令与接收上传 数据的功能,并完成数据处理、图显、存储等任务,嵌入式前端机与声系检测电路板通过扩展I/O总线相连,完 成各调试功能的控制、数据采集、网络互连等功能;基于FPGA的声波发射装置和接收装置以及相应的数据处 理模块,声波发射装置由扬声器、波形发生电路、数模转换电路、滤波电路及程控放大电路构成,声波接收装 置由拾音器、滤波电路、程控放大电路及模数转换电路构成。该系统不仅可以快速检测仪器声系的工作状态, 而且能够提高仪器研发和维修过程中的层次性、科学性和调试诊断的效率。
服务
把本文推荐给朋友
加入我的书架
加入引用管理器
关键词 : 声波测井;阵列式声系;检测技术;FPGA;嵌入式
Abstract

In order to increase the accuracy of well logging interpretation, the acoustic logging tool array sonde is becoming more complex. The complexity of logging tools not only improves the requirement of stability, but also increases the difficulty of acoustic logging tool array sonde assembling and debugging. In order to solve the problem of long times and low precision debugging for an array acoustic sonde, and to verify the effectiveness and consistent performance of the sonde, a new embedded array sonde test system based on a field-programmable gate array (FPGA) was designed and implemented. In the experiment, the    amplitude and frequency adjustment range of the test system acoustic transmitting device was tested by the standard receiving transducer, and the consistency of the test system acoustic receiving device was verified by the standard transmitting transducer.  The test system was applied to a test of the actual acoustic sonde. Through the comparison and analysis of the theoretical simulation and the actual measurement data, it was found that the test system can detect the effectiveness and consistency of each channel of the acoustic receiving sonde, and evaluate the performance of the monopole and dipole of the transmitting acoustic sonde separately. At the same time, the test system can calibrate the transducer array, which can be used as a reference for data processing in actual well logging. This system mainly includes the following two parts, the first part is the master-slave system architecture based on an embedded uClinux system and network interconnection, with the chip based on ARM technology as the hardware core. The upper computer communicates with the embedded front terminal through the Ethernet interface, realizes the functions of sending control commands and receiving data, and completes the tasks of data processing, graphic display, storage, etc. The embedded front terminal connects with the circuit board of the test system through the extended I/O bus to complete the control, data acquisition, network interconnection and other debugging functions. The second part is the acoustic transmitting device and acoustic receiving device with a data processing module, which is based on a FPGA. The acoustic transmitting device is composed of a loudspeaker, waveform generating circuit, digital-analog conversion circuit, filtering circuit and program-controlled amplifying circuit. The sound wave receiving device is composed of a sound pickup device, filtering circuit, program-controlled amplifier circuit and analog-digital conversion circuit. The system can be effectively used in the performance assessment of an array acoustic sonde and transducer array calibrating, which contributes to improving the assembly and maintenance. efficiency of the acoustic logging tool.    


Key words: acoustic logging; array sonde; testing technology; FPGA; embedded
收稿日期: 2020-09-29     
PACS:    
基金资助:国家自然科学基金项目(11734017、11374371)、国家科技重大专项(2017ZX05019001、2017ZX05019006) 和中国石油科技创新基金项目
(2016D-5007-0303) 联合资助
通讯作者: teamo_0911@sina.com
引用本文:   
LIU Dong, JU Xiaodong, LU Junqiang, MEN Baiyong. Embedded-technology-based acoustic logging array sonde testing system. Petroleum Science Bulletin, 2020, 03: 337-348.
链接本文:  
版权所有 2016 《石油科学通报》杂志社