摘要
自然伽玛能谱测井能够提供多种地质参数,刻度模型是该项测井必不可少的基础设施。本文介绍了自然伽玛能谱标准刻度装置,对装置模型结构、规格及放射性元素浓度进行了理论论证。本装置设计合理,采用成功的抑(?)技术,矿化水、自由水分析及地层全密封措施,以保证放射性长期稳定,而且数据定值分析、测定结果数据与设计值相符。本装置除提供自然伽玛能谱测井仪刻度外,还可用于现场刻度器的检测、环境校正试验及解谱方法试验。
Gamma ray spectrolog can provide many formation parameters. Calibration pits are its imperative basic device. This paper elaborates on the structure, specifications and concentration of elements of the standard calibration pits. Radon-impermeable technique, mineralized water and free water analysis, and formation-sealing measures are adopted. All this keeps the pits stable for a long period of time. Test results show that pit specifications meet design requirements. Besides calibration of the tool, the pits can also be used for testing of field calibrator and environment correction.
