Characteristics of the Permian Source Rocks in the Middle and Upper Yangtze Region

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    (1.School of Geosciences,Yangtze University,Wuhan 430100,China;
    2.Key Laboratory of Exploration Technologies for Oil and Gas Resources,Ministry of Education,Yangtze University,Wuhan 430100,China)

Received date: 2013-10-22

  Revised date: 2014-03-31

  Online published: 2014-09-10

Abstract

Based on the analysis of the types and distribution of source rocks and the abundance and maturity of organic matter,the characteristics of the Permian source rocks in the Middle and Upper Yangtze Region were studied in detail,and the controlling factors of the development of the source rocks were discussed.The results show that the Permian source rocks in study area are mainly composed of dark carbonate rocks,dark mudstones or shale and coal,and the thin-bedded siliceous rocks are also potential source rocks.The thickness of the source rocks of the Qixia Stage and the Maokou Stage is rather thick with wide distribution,and the thickness of the source rocks of the Wujiaping Stage and the Changxing Stage is relatively thin with rather limited distribution| and the area of northwestern Sichuan-northeastern Sichuan-eastern Chongqing-western Hubei-northern Guozhou-central Guizhou is the superimposed area of source rocks of the four stages,where is the favorable hydrocarbon zone.The development of the source rocks of the Permian in the study area is controlled by the sedimentary environment and the action of the upwelling.The types of source rocks and abundance of organic matter are mainly controlled by the sedimentary environments| and the development of the high-quality source rocks of the Middle Permian is closely related to the upwelling.
 
 

Cite this article

LUO Jin-xiong,HE You-bin . Characteristics of the Permian Source Rocks in the Middle and Upper Yangtze Region[J]. Natural Gas Geoscience, 2014 , 25(9) : 1416 -1425 . DOI: 10.11764/j.issn.1672-1926.2014.09.1416

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