| 基于快速自然γ测井定位的定点能谱测井仪设计 |
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| 引用本文： | 阳林锋,庹先国,李怀良,刘勇,沈 统. 基于快速自然γ测井定位的定点能谱测井仪设计[J]. 科学技术与工程, 2013, 13(33) |
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| 作者姓名： | 阳林锋 庹先国 李怀良 刘勇 沈 统 |
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| 作者单位： | 地质灾害防治与地质环境保护国家重点实验室,地质灾害防治与地质环境保护国家重点实验室,地质灾害防治与地质环境保护国家重点实验室,地质灾害防治与地质环境保护国家重点实验室,地质灾害防治与地质环境保护国家重点实验室 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 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。
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| 关 键 词： | 曲线合成 高分辨率 快速定位测井 快速AD |
| 收稿时间： | 2013-07-08 |
| 修稿时间： | 2013-08-13 |
Spectrum Logging Instrument Design Dased on Fixed-point Fast Natural Gamma-ray Log Location |
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| Yang Lin-feng,Tuo Xian-guo,LI Huai-liang,Liu-Yong and ShengTong. Spectrum Logging Instrument Design Dased on Fixed-point Fast Natural Gamma-ray Log Location[J]. Science Technology and Engineering, 2013, 13(33) |
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| Authors: | Yang Lin-feng Tuo Xian-guo LI Huai-liang Liu-Yong ShengTong |
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| Affiliation: | State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu Sichuan,State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu Sichuan,State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu Sichuan,State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu Sichuan |
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| Abstract: | Aiming at the defects of the current portable small caliber of natural gamma-ray spectral logging, This paper presents a multi crystal gamma logging instrument design method, to achieve fast positioning abnormal well section and point gamma energy spectrum analysis. The system is based on FPGA platform, using IP soft core, dynamic configurable function modules, fast AD acquisition system, parallel double buffer acquisition and storage technology. Downlink logging complete multicrystal gamma measurement and positioning, uplink using fast AD digital acquisition system complete the fixed energy spectrum analysis. Compared with the small diameter single-crystal gamma-ray logging, logging speed and vertical resolution is significantly improved, the practicability of small-diameter energy spectrum logging is enhanced. |
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| Keywords: | Curve synthesis, High resolution (HR), Rapid positioning logging, Fast AD |
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