泥页岩层序地层学划分方法——以准噶尔盆地准页3井芦草沟组泥页岩为例Shale Sequence Stratigraphic Partition Method——A Case Study of Lucaogou Formation Argillutite in Well ZY No.3, Junggar Basin, Xinjiang
陈健,庄新国
摘要(Abstract):
准噶尔盆地南缘二叠系芦草沟组发育了一套厚层的泥页岩。前人研究把芦草沟组划分为一个完整的三级层序,但是对这种细粒沉积物层序内部体系域的划分界面认识还不一致。随着近年来页岩气在暗色泥页岩中被大量勘探开发,深水泥页岩对湖平面的响应和层序格架划分成了一个高难度的课题。根据岩性相和岩石地球化学参数对湖平面响应的敏感变化特征,对准页3井芦草沟组体系域和体系界面进行了识别和分析,分析优质烃源岩的分布特征,为后续页岩气的勘探开发提供参考,同时为其他地区湖相泥页岩层序地层学研究提供借鉴。
关键词(KeyWords): 泥页岩;层序地层学;芦草沟组
基金项目(Foundation):
作者(Author): 陈健,庄新国
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