岩性油气藏 ›› 2016, Vol. 28 ›› Issue (6): 18.doi: 10.3969/j.issn.1673-8926.2016.06.001
• 油气地质 • 下一篇
周 文1,2,徐 浩1,2,邓虎成1,2,陈文玲1,2
Zhou Wen 1,2, X u Hao 1,2, Deng Hucheng 1,2, Chen Wenling 1,2
摘要: 为了揭示四川盆地富有机质层段特征及不同类型剖面结构的产能规律,以四川盆地侏罗系自流井组大安寨段和三叠系须家河组须五段为研究对象,在野外实测剖面和钻井资料分析的基础上,结合区域沉积背景,利用泥地比、单层砂(灰)岩厚度等为标准,对陆相富有机质层段剖面结构进行了划分,并与北美 Bakken 组致密油气地层剖面结构和生产特征进行了对比。 陆相富有机质层段可划分为致密砂(灰)岩型、富砂(灰)夹泥型、砂(灰)泥互层型、富泥夹砂(灰)型及泥页岩型等 5 种类型的剖面结构。 富有机质层段中致密砂(灰)岩油气与页岩油气共存,其中页岩油气产出剖面主要集中于砂(灰)泥互层型、富泥夹砂(灰)型及泥页岩型剖面结构。 陆相地层具有多产层特征,将富有机质页岩夹砂(灰)岩地层作为整体进行页岩油气勘探开发,应是今后陆相页岩油气地层重要的勘探开发思路。
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