The Carboniferous source rocks in Wucaiwan area of Junggar Basin have good hydrocarbon generation potential.They are now at the mature-high mature stage and have generated a large number of hydrocarbons.The hydrocarbon generation process since Permian has an important impact on the hydrocarbon accumulation of the Carboniferous System.This paper evaluates the basic characteristics of Carboniferous source rocks in this area，restores the evolution history，carries out the analysis of hydrocarbon accumulation conditions，and then studies the hydrocarbon accumulation process.The results show that the Carboniferous source rocks in Wucaiwan area have the conditions of large-scale hydrocarbon generation，and have undergone several important hydrocarbon generation periods.Carboniferous has undergone multi-stage reservoir formation，i.e.，the end of Permian，the end of Triassic，Late Jurassic and the end of Cretaceous.Among them，the first three are early hydrocarbon accumulation.Because of the Late Jurassic-Early Cretaceous tectonic activity，the oil and gas pools formed in the early stage were completely destroyed and lost.The Late Cretaceous is the last hydrocarbon generation peak of the Carboniferous source rocks in this area，and a large number of mature-high mature oil and gas pools were accumulated in the internal reservoirs of the Carboniferous to form the present oil and gas pools.
Wang Wei-feng, Zhang Zhong-da
. Evolution of Carboniferous source rocks and hydrocarbon accumulation process in the area of the Wucaiwan area in Junggar Basin[J]. Natural Gas Geoscience, 2019
, 30(4)
: 447
-455
.
DOI: 10.11764/j.issn.1672-1926.2019.01.006
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