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Crude oil hydrocarbon composition characteristics and oil viscosity prediction are important bases in petroleum exploration. A total of 54 oil/heavy-oil samples and 17 oil sands were analyzed and quantified using both comprehensive 2D gas chromatography (GC×GC) and comprehensive 2D gas chromatography/time-of-flight mass spectrometry (GC×GC/TOFMS). The results show that crude oil in the West slope...
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