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The experimental analysis of 21 crude oil samples shows a good correlation between high molecular-weight hydrocarbon components (C40+) and viscosity. Forty-four remaining oil samples extracted from oil sands of oilfield development coring wells were analyzed by high-temperature gas chromatography (HTGC), for the relative abundance of C21−, C21–C40 and C40+ hydrocarbons. The relationship between...
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