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中文摘要：
针对当前轻便型小口径自然γ能谱测井仪的缺陷,提出了一种多晶体γ测井仪设计方法,实现快速定位异常井段并定点γ能谱分析.系统采用FPGA平台的IP软核、可动态配置功能模块、快速AD采集系统、并行双缓存采集存储等技术.下行测井实现多晶γ测量并定位,上行采用快速AD数字采集系统实现定点能谱分析.与小口径单晶γ测井相比,测井速度与纵向分辨率明显提高,小口径能谱测井的实用性增强.
英文摘要：
Aiming athe defectof the currenportable small calibeof natural gamma-ray spectral logging, multi crystal gammlogging instrumendesign method, to achieve faspositioning abnormal well section and poingammenergy spectrum analysiipresent. The system ibased on FPGplatform, using IP sofcore, dynamiconfigurable function modules, fasAD acquisition system, parallel double buffeacquisition and storage technolo- gy. Downlink logging complete muhicrystal gammmeasuremenand positioning, uplink using fasAD digital ac- quisition system complete the fixed energy spectrum analysis. Compared with the small diametesingle-crystal gam- ma-ray logging, logging speed and vertical resolution isignificantly improved, the practicability of small-diameteenergy spectrum logging ienhanced.
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