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NGT-075伽马测井仪
概述 | 规范 | PDF 宣传册NGT-075伽马测井仪是基于我们非常成功的NGT-T伽马测井仪, 在最严峻的钻井条件下,它也能提供可靠的性能。
由于其外径仅为0.75”(19.05mm),该仪器最适合安装在钻铤里或用在小口径类仪器中。
要是你把几个NGT-075 安装在钨屏蔽物上，就可造就高级定向伽马测井仪。
NGT-075使用我们最先进性能的第三代电子线路。它不但可以接受了宽广的的电压输入，而且需要更小的漏电流，这样可以减少在昂贵的锂电池上的负载。
输出电路使用先进的保护和噪音抑制组件以达到更高的系统可靠性。
电子线路被封装后提供更好的冲击保护。
定制的闪烁晶体和光电倍增管组件使得该仪器具有特别高的灵敏度并且结实耐用。
Non-Magnetic Version
A special version can be supplied (at extra cost) with essentially all magnetic materials removed from the tool. This is valuable in collar-mounted assemblies when it is necessary to install the tool in proximity to magnetometers. The performance is not compromised in any way.
Testing and Calibration
The graph below shows a typical temperature calibration chart for the NGT-075. Notice that we carefully control the maximum heating and cooling rate of the tool, similar to the rates experienced when tripping the well. Failure to observe this procedure when testing the tool will void the warranty.
