一种新型岩性密度测井仪数据采集处理电路设计  

Design of Data Acquisition and Processing Circuit for a New Litho-density Logging Tool

作　　者：刘易[1] 汤天知 岳爱忠 

机构地区：[1]成都理工大学,四川成都610059 [2]中国石油集团测井有限公司技术中心,陕西西安710077

出　　处：《测井技术》2012年第4期397-400,共4页Well Logging Technology

基　　金：国家科技重大专项课题大型油气田及煤层气开发任务之一;隶属于子课题模块式动态地层测试系统及EILog配套装备;项目编号:2008ZX05020;课题编号:2008ZX05020-004

摘　　要：提出一种应用于岩性密度测井仪器先采集再处理的新方法,通过核脉冲数字化处理方案完成新型岩性密度测井数据采集处理电路设计。对新仪器进行室内数据采集性能测试和室外实验测试。相比采用先处理再采集的方法的常规岩性密度测井仪器,采用该新方法研制的岩性密度测井仪器具有更高的精度(0.015g/cm3),同时兼备更佳的性能稳定性,测井工程曲线与国外仪器吻合良好。Proposed is a new data pre-acquiring ＆ post-processing method for the new litho- density logging tool. The data acquisition and processing circuit design is implemented through digital nuclear-pulse signal processing technique in the new litho-density logging tool. Indoor data acquisition test and outdoor experiment are carried out for the new tool, results of which show that the new tool with the new method has higher precision （0. 015 g/cm3） and better stability than the conventional litho-density logging tools. Logging curves provided by the new tool are better agreement with that by foreign instruments.

关 键 词：岩性密度测井仪 脉冲数字化 数据采集处理 电路设计 

分 类 号：P631.63[天文地球—地质矿产勘探]