基于HyLogger岩芯扫描系统的页岩岩芯烃类信息提取

A method of Hydrocarbon information extraction for shale core based on the HyLogger core scanning system

本文根据光谱原理,详细地分析了烃基的吸收峰位置。在此基础上,选择汽油、蓝色润滑油、黄油和树叶四种材料进行验证,试验证明在1200nm、1730nm、2300nm附近上述物质有吸收带,同时说明对于烃基的提取还需要结合影像和波形特征,才能提高提取精度。然后使用HyLogger岩芯扫描系统分别对柴页1井和阳页1井进行高光谱数据获取,并分析扫描井段烃类信息含量。通过与TOC资料和现场解析气数据进行对比,分析结果与该类资料吻合度较高,证明所用的烃类信息提取方法是可行有效的。

Based on the principle of spectrum,the absorption peak positions of alkyl groups are analyzed in detail.Then we choose four materials:gasoline,blue oil,butter and leaf to prove that the absorption bands of these substances near1200 nm,1 730 nm and2300 nm.At the same time,we should combine the characteristics of image and waveform features to improve extraction accuracy.Then we used the HyLogger core scanning system to obtain hyperspectral data of Chaiye1 and Yangye1,analyzed the content of hydrocarbon in the scanning well.Compared with the TOC data and the field analysis gas data respectively,the results of the analysis are in good agreement with these data.It is proved that the hydrocarbon information extraction method is feasible and effective.