显微荧光成像光谱技术在录井中的应用

Microscopic Fluorescence Imaging Spectrum Technology's Application in Logging

利用显微成像光谱仪对岩芯样品进行荧光显微成像,所得信息构成光谱成像立方体,从而同时采集到含油岩芯样品表面组构的空间信息和所含烃类的荧光光谱信息,克服了目前通用的显微荧光技术的某些局限性,得到一定波长范围内岩芯表面荧光各波长的单色图像,利用相应的软件做进一步的数据处理,得到发光波长、发光强度及发光部位等多维信息,从而可以更直观、科学地揭示岩石中的石油烃类分布含量及岩石结构和构造等,对石油录井及油气水层的判别和评价具有重要的实用价值。

Microscopic imaging spectrum technology is very efficacious in nonuniform matter study. It integrates spectrum technology and imaging technology, identify and analyze the subject investigated through spectra and space. In this paper we apply the technology to petroleum logging. To the oily core, fluorescence analysis is universal. But current research methods have some shortages. Generally, synchronized fluorescence spectrum and three-dimensional fluorescence spectrum are able to quantitative measure the sample, by destroying its original structure feature. General fluorescence analysis and fluorescence microscopic imaging are observational measurements. The two methods identify the sample by eyes, so they have uncertainty and with low spectral resolution. Use the image spectrometer, we get the sample＇s fluorescence spectral cube. Through further ana-lysis, we also get the informations about fluorescence wavelength, intensity, position etc. Thus, we can study the hydrocarbon distribution and content by different aspect. In the same time, the rock core＇s structure doesn＇t be destroyed. As shown by the experiment results, it＇s easy to identify fluorescence wavelength, intensity and distribution. This technology is objective comparing with fluorescence microscopic imaging. So it is sure that, facilitated sample treatment, perspicuous experiment procedure and abundant data are its ascendancies.