Thermal History Modeling of Complicated Extrusional Sectionand Source Rock Maturation Characteristics in Kuqa Foreland Basin

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    (1.Key Laboratory of Basin Structure and Hydrocarbon Accumulation,CNPC,Beijing 100083,China;
    2.Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China;
    3.Research Institute of Petroleum Exploration and Development,PetroChina Tarim Oilfield Company,Korla  841000,China)
     

Received date: 2014-06-24

  Revised date: 2014-07-23

  Online published: 2014-10-10

Abstract

Combined with geological conditions in Kuqa foreland basin,the impact of thrusting process,salt plastic flow,rapid depositions or erosions on heat flow and source rock maturity evolution was discussed.Based on the advanced “Block” function of IES PetroMod software,thermal history modeling of complicated extrusional structural section in Kuqa foreland basin has been successfully carried out.In the modeling,it comprehensively considers the impact of overthrusting,huge and thick gypsum-salt layer with high thermal conductivity,rapid deposition or denudation on thermal evolution history.The result shows that the hydrocarbon generation center of Jurassic-Triassic source rock in Kuqa foreland basin is not in today′s Baicheng sag with the deepest burial depth,but in the deep layers of the thrust front in Kelasu thrust belt.Moreover,it reveals the source rock maturation differentiates in spatial and temporal within different tectonic belts,which is important to understand the different hydrocarbon accumulation history and phase distribution in different structural belts.
 

 

Cite this article

LU Xue-song,SONG Yan,ZHAO Meng-jun,LI Yong,ZHUO Qing-gong,WANG Yuan . Thermal History Modeling of Complicated Extrusional Sectionand Source Rock Maturation Characteristics in Kuqa Foreland Basin[J]. Natural Gas Geoscience, 2014 , 25(10) : 1547 -1557 . DOI: 10.11764/j.issn.1672-1926.2014.10.1547

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