AN APPROACH OF ORIGIN OF HEAVY OIL IN NORTHWESTERN MARGIN OF JUNGGAR BASIN AND ITS EARLY FORMED HYDROCARBON MECHANISM

Abstract

Abstract: Based on geochemistry studies of oil geneses and cr ude hydrocarbon-formed mechanism in northwestern marginof Junggar Basin, it has been considered that origin of the heavy oil should be secondaiy in nature and emerged fromUpper Paleozoic source rocks. This oil can be classified into three types: type I is the product of "eatly formed hydro-carbon mechanism type II is the product of late formed hydrocarbon mechanism;type III is a transition one. Themost crude oil that prospected and developed in the northwestern margin is type I in nature.

Key words: Northwestern margin of Junggar Basin, Geochemistry, Origin of heavy oil, Early formed hydrocarbon

Li Jianxin, Yang Bin, He Liqing, Li Jichuan. AN APPROACH OF ORIGIN OF HEAVY OIL IN NORTHWESTERN MARGIN OF JUNGGAR BASIN AND ITS EARLY FORMED HYDROCARBON MECHANISM[J]. Xinjiang Petroleum Geology, 1993, 14(3): 239-249.

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AN APPROACH OF ORIGIN OF HEAVY OIL IN NORTHWESTERN MARGIN OF JUNGGAR BASIN AND ITS EARLY FORMED HYDROCARBON MECHANISM

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