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On Resource Potential,Distribution and Characteristics of Shale Gas in China

CHENGYong1a,GUOYufeng1b,CHENGuodong,YANGWanlin,WANGFalong   

  1. (1.a.MiningEngineeringFaculty,b.ArchitecturalEngineeringFaculty,KunmingMetallurgyCollege,Kunming650033,China;2.No2OilProductionPlant,ChangqingOilfieldCompany,CNPC,QingyangGansu,705600,China;3.SouthwestNon-FerrousKunmingSurveyanyDesign(Institute)CompanyLtd.,Kunming650217,China)
  • Online:2017-12-19 Published:2017-12-19

Abstract: This paper introduces the resource potential,analyzes the geological history and space distribution of shale gas in China.Then it compares the characteristics of three main types of organic-rich shale in China and studies the difference of shale between China and North America. The geological resource quantity of shale gas in China is between 80.45×1012~144.50×1012,among which the recoverable resource is between 11.50×1012~36.10×1012. Many complicated shale formations were deposited from Chuanlinggou Formation in Mesoproterozoic Erathem to Dongying Formation in Oligocene in the process of polycycle tectonic and sedimentary environment evolution in China. Marine shale,formed at early paleozoicera,is superior in resource potential and reservoir forming conditions,mainly distributed in south China's middle-lower part of Yangtze region,Sichuan Basin and central and western China's Tarim Basin,with most important stratas of Qiong-zhu-si Formation,Wu-feng&Long-ma-xi Formations.Inferiorto Marine shale,the transitional shale,developed at late paleozoicera is distributed in Carboniferous-Permian of Sedimentary basin in the mid-western China's Jung-gar Basin,Ordos Basin,Tarim Basin and Permian in South China,with importants tratas of Taiyuan,Shanxi and,Long-tanFormations.While,next to the transitionalshale,the continental shale,formedat Mesozoic and Cenozoicera,is distributed in Song-liao,Bo-haiBay,OrdosandSichuan basins,with important stratas of Yan-chang,Qingshan-kou,Sha-he-jie Formations,Triassic and Jurassic systems.

Key words: shalegas, resource potential, distribution, exploration and development

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