Quantitative Fluorescence Techniques and Their Applications in Hydrocarbon Accumulation Studies
Liu Keyu
Lu Xuesong
Gui Lili
Fan Junjia
Gong Yanjie
Li Xiuli
Abstract：Quantitative fluorescence techniques,including a suite of techniques,such as quantitative grain fluorescence (QGF), quantitative grain fluorescence on extract (QGF-E),QGF plus (QGF+ ),total scanning fluorescence (TSF),and TSF on crushed inclusion extracts (iTSF),have been widely applied in studying hydrocarbon charge history and accumulations.The techniques can be used to delineate the current (residual)oil zone and palaeo oil zone,reconstruct hydrocarbon accumulation history,identify oil migration pathways,and determine oil properties.Compared with the petrographic and organic geochemical methods,the fluorescence techniques have the advantages of extremely sensitive,easy to use and fast turn-around.In this pa-per,we present the principles,sample preparation procedures,key parameters and some field application examples in hydrocar-bon accumulation studies,including (1)the palaeo and residual oil zone delineation and reservoir evolution history reconstruc-tion using the QGF and QGF-E techniques;(2)evaluating tight oil reservoir zones,which are difficult to be detected by well logging data using the QGF-E technique;(3)cross-correlation between TSF,iTSF,QGF+ spectral signatures and other geo-chemical parameters to detect geochemical characteristics of crude oils,core and oil inclusion extracts.Some pitfalls and other potential application of the techniques are also discussed.
Keywords：quantitative fluorescence techniquefluorescence spectrumoil zone identificationoil propertyhydrocarbon accu-mulation historypetroleum geology
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：12( 373-384 )