一种快速检测油包裹体的新方法——颗粒包裹烃定量荧光分析技术及其初步应用

NEW APPROACH TO DISCRIMINATE OIL FLUID INCLUSIONS QUICKLY——QUANTITATIVE GRAIN FLUORE SCENCE(QGF)TECHNIQUES AND ITS APPLICATION

李素梅 庞雄奇 刘可禹 付秀丽

Li Sumei Pang Xiongqi Liu Keyu Fu Xiuli

中国石油大学 石油天然气成藏机理教育部重点实验室, 北京 102249 2. 中国石油大学 盆地与油藏研究中心, 北京 102249 3. CSIRO Petroleum, P. O. Box 1130, Bentley WA 6102, Australia

Key Laboratory for Hydrocarbon Accumulation Mechanism, Ministry of Education, China University of Petroleum, Beijing 102249, China 2. Basin and Reservoir Research Center, China University of Petroleum, Beijing, 102249, China 3. CSIRO Petroleum, P. O. Box 1130, Bentley WA 6102, Australia

选取海拉尔盆地18个以砂岩为主的储集岩样品进行储层颗粒吸附烃和非烃定量荧光(QGF-E,Quantitative Grain Fluorescence on Extract)、颗粒包裹烃定量荧光(QGF,Quantitative Grain Fluorescence)分析,用于储层含油气性分析与包裹体鉴定.实验表明,该方法简单、快速且精确度高.QGF-E结果反映分析样品所在的储层多数曾经有油气经过,是油气运移通道和/或是古/今储层;QGF的测试确认分析样品多数未能形成包裹体,可能反映该区储层不利于形成包裹体.研究结果表明,碎屑岩储层的定量荧光分析是快速识别油层、干层与油气运移通道,鉴定储层油包裹体及进行油气化学成分分析的有效途径,是油气成藏过程研究的重要手段.

A new approach utilizing fluorescence scanning technique to analyze adsorbed hydrocarbons and non-hydrocarbons,identify oil inclusion and fluorescence fingerprint was introduced,and the Hailaer Basin was selected as a case study.Totally 18 samples collected mainly from Mesozoic clastic rock reservoir from the basin were chosen to perform QGF-E (Quantitative Grain Fluorescence on Extract) and QGF (Quantitative Grain Fluorescence)analysis.It was proved that the experimental procedure of QGF-E and QGF analysis is a simple,quick and low cost way.The results of QGF-E showed that the intervals where the samples were collected were once to be pathways of oil migration and/or transited carrying bed of hydrocarbons.The results of QGF indicated that only a little oil inclusions were formed in the reservoir analyzed for some reasons.This study suggests that QGF-E and QGF are able to readily delineate current and paleo-oil column,oil migration pathway,current oil-water and residual oil-water contacts as well as identifying existence of oil inclusions,which would be helpful in reconstructing process of hydrocarbons accumulation.

https://doi.org/10.11781/sysydz200604386