中国西北侏罗系烃源岩中生油组分和成烃作用

Oil prone Constituents and Hydrocarbon Generation of Jurassic Source Rocks in Northwest China

中国西北侏罗系烃源岩中生油组分和成烃作用王飞宇何萍赵长毅（石油大学，北京１０２２００）（石油勘探开发科学研究院，北京１０００８３）关键词生油组分成烃作用煤和陆源有机质生油岩西北侏罗系烃源岩中国西北侏罗系煤系地层作为油源岩正日益受到重视。在吐鲁番盆地［...

The Jurassic coal bearing strata widely distributed in Northwest China are consided as oil source rocks,the oil prone constituents of which are characteristics of small,fine and filmy in shape.Microscopically,oil prone constituents are perhydrous desmocollinite, exinite(mainly tenuicutinite,tenuisporinite and suberinite)and minor sapropelinite(mainly alginite and bituminite),relatively lack of resinite,crassicutinite,crassisporinite.Submicroscopically,oil prone constituents are submicrolipitinites which disseminated in desmocollinite,mineral bituminous matrix,semifusinite and macrinite.Between those two levels are liptodetrinite abundant.According to the amount,composition and evolution feature of oil prone constitutes,the oil windows of Jurassic coal bearing strata in Northwest China are located in the range of vitrinite reflectance:from 0.50% to 1.30% R 。.