ANALYSIS APPLICATION OF COMPREHENSIVE TWO-DIMENSIONALl GAS CHROMATOGRAPHY TIME-OF-FLIGHT MASS SPECTROMENTRY IN PETROLEUM GEOLOGY

Analysis study to the petro-geology samples was carried out by the technology of comprehensive 2-D GC TOF MS.According to the analysis of original oil,the regulation of the characteristic regions of several groups,namely paraffin,cyclane,monoaromatics,dinuclear and trinuclear aromatics were revealed.With this facility,it is possible to obtain accurate compound identifying and detailed feature of oil sample's hydrocarbon composition.To give more information of the fingerprint of light hydrocarbons,based on the comparison with traditional GC,higher performance on separating and easier re-cognizing of the light hydrocarbon,which are in the frame of C₆-C₁₀,can be achieved by GC×GC.To the biomarkers analysis,it achieved the great separating and easy identifying of tricyclic and pentacyclic terpane,and similarly to the gammacerane.With the high efficiency and performance of the facility,perspective application in the field of petroleum exploration will be done by the GC×GC.