激光光纤核测井技术

Nuclear logging technology with laser-optical fiber

激光具有亮度高，单色性、方向性和相干性好，穿透性强等特点。而光纤具有传输频带宽、损耗极低、直径细、质量轻、可挠性好。不受电磁干扰，以及绝缘、耐水性优良等优点。随着激光技术和光纤技术的发展，各种激光光纤传感器层出不穷。利用激光光纤技术进行石油测井开辟了测井技术特别是光学测井向前发展的又一重要途径。文章着重介绍了国内外激光光纤核传感器的研究情况以及激光光纤技术在石油核测井中的应用前景。

Laser has the characteristics of good brightness, monochchromaticity, coherence and penetrability. The optical fiber has the advantages of wide frequency band, low loss, slim diameter, light weight and water resistance. With the development of laser and optical fiber technique, many kinds of laser-optical fiber sensors have been made. The use of laser-optical fiber technique presents an important way for the oil logging technology, especially optical logging. This paper presents the study results of laser-optical fiber sensors and their application prospects in oil logging field.