Origin of Jurassic Hydrocarbon and Accumulation Model in Santanghu Basin
Received date: 2009-05-06
Revised date: 2009-07-20
Online published: 2010-02-10
Here we establish a model of Jurassic hydrocarbon accumulation in Santanghu basin and propose control factors of the petroleum accumulation by analyzing the geological background(i.e.structure,stratigrapgy),the distribution of source rock and the origin of hydrocarbon.The Jurassic petroleum mainly comes from the source rock of the Permian Lucaogou Formation,the other part from those of Jurassic and Triassic,and a little natural gas was derived from the Jurassic source.According to tectonic location and space distribution relationship between source rock and pool,hydrocarbon was accumulated in different ways,mainly in old formation and new accumulation,and a few of small size pools in self generation and self reservoir manner.Although the source rock does not constrain the distribution of petroleum pools,the dominant control factors of hydrocarbon accumulation in the area of source rock distribution include good reservoir,anticline and fault.But it is unfavorable of layer monocline to hydrocarbon accumulation.
GAO Gang, LI Hua-Ming, LIANG Hao, JIAO Li-Xin . Origin of Jurassic Hydrocarbon and Accumulation Model in Santanghu Basin[J]. Natural Gas Geoscience, 2010 , 21(1) : 18 -25,61 . DOI: 10.11764/j.issn.1672-1926.2010.01.18
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