核磁测井仪通用采集平台辅助测量系统研制  

Development of Auxiliary Measurement System of NMR Logging Tool Based on Universal Acquisition Platform

作　　者：钟剑 马骁 侯学理 宫玉明 黄燕 卢亚普 Zhong Jian;Ma Xiao;Hou Xueli;Gong Yuming;Huang Yan;Lu Yapu(China National Logging Corporation)

机构地区：[1]中国石油集团测井有限公司,重庆市400021

出　　处：《石油机械》2024年第12期38-43,共6页China Petroleum Machinery

基　　金：中国石油集团测井有限公司科技项目“先进制造关键技术研究”(C-CNLC2022-1E03)。

摘　　要：为了使新一代核磁测井仪器能高效准确获取核磁辅助测量参数信息,设计了一种基于通用采集平台的核磁测井仪器辅助测量系统。基于通用采集平台技术,详细分析了核磁测井仪器辅助测量的必测参数及性质,提出核磁测井仪器辅助参数测量系统,探究辅助测量系统硬件中信号调理、多通道切换、数模转换功能以及发送辅助测量参数选择通道命令时序、读取辅助测量参数采集数据时序的设计与实现。单板测试结果表明,辅助测量参数通道选择和采集数据上传可行;仪器联调测试结果表明,设计的辅助测量系统能够准确获取核磁辅助测量参数信息,反映核磁仪器实际工作状态。研究结果可为偏心核磁、随钻核磁及过钻具核磁等测井仪器辅助测量系统设计、研究及应用提供技术基础。An auxiliary measurement system of nuclear magnetic resonance(NMR)logging tool based on universal acquisition platform was designed to enable the new generation of NMR logging tool to efficiently and accurately acquire information about auxiliary measurement parameters.Based on the universal acquisition platform technology,a detailed analysis was conducted on the necessary parameters and properties in auxiliary measurement of NMR logging tool,and an auxiliary measurement system of NMR logging tool was proposed.The design and realization of the hardware functions(e.g.signal conditioning,multichannel switching and digital-analog conversion)of the auxiliary measurement system,as well as the time sequence of sending auxiliary measurement parameter selection channel commands and reading auxiliary measurement parameter acquisition data,were investigated.The single board test results show that the selection of auxiliary measurement parameter channels and the uploading of acquired data are feasible.The joint debugging test results show that the designed auxiliary measurement system can accurately obtain the information about auxiliary measurement parameters of NMR logging tool,and reflect the actual working status of the tool.The research results provide a technical basis for the design,research and application of auxiliary measurement systems of eccentric,while drilling and through-bit NMR logging tools.

关 键 词：核磁测井 通用采集 硬件设计 时序设计 辅助测量 

分 类 号：TE925[石油与天然气工程—石油机械设备]