NEW APPROACH TO DISCRIMINATE OIL FLUID INCLUSIONS QUICKLY——QUANTITATIVE GRAIN FLUORE SCENCE(QGF)TECHNIQUES AND ITS APPLICATION
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摘要: 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.Abstract: 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.
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Key words:
- oil inclusion /
- QGF-E /
- QGF /
- fluorescence analysis /
- classic rock reservoir /
- the Hailaer Basin
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