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古地理学报 ›› 2013, Vol. 15 ›› Issue (3): 383-400. doi: 10.7605/gdlxb.2013.03.032

• 岩相古地理学及沉积学 • 上一篇    下一篇

准噶尔盆地车排子地区侏罗系八道湾组沉积古地貌及岩性分布*

周路1 韦红1 唐勇2 孔玉华2 任本兵2 吴 勇1 关 旭1   

  1. 1 油气藏地质及开发工程国家重点实验室，西南石油大学，四川成都 610500
    2 中国石油新疆油田公司勘探开发研究院，新疆克拉玛依 834000
  • 收稿日期:2012-12-11 修回日期:2013-02-07 出版日期:2013-06-01 发布日期:2013-06-01
  • 作者简介:周路，男，1962年生，1984年毕业于西南石油学院，2003年从中国石油勘探开发研究院博士后流动站出站，现为西南石油大学资源与环境学院教授，博士生导师，目前主要从事油气地质勘探的科研与教学工作。E-mail:zhoulu9@126.com。
  • 基金资助:
    国家科技重大专项（编号：2011ZX05000-01-06）资助

Sedimentary palaeogeomorphology and lithology distribution of the Jurassic Badaowan Formation in Chepaizi area of Jungar Basin

Zhou Lu1 Wei Hong1 Tang Yong2 Kong Yuhua2 Ren Benbing2 Wu Yong1 Guan Xu1   

  1. 1 State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation，Southwest Petroleum University，Chengdu 610500，Sichuan
    2 Research Institute of Exploration and Development，Xinjiang Oilfield Branch，PetroChina,Karamay 834000，Xinjiang
  • Received:2012-12-11 Revised:2013-02-07 Online:2013-06-01 Published:2013-06-01
  • About author:Zhou Lu，born in 1962，got his bachelors degree from Southwest Petroleum Institute in 1984. He graduated from Postdoctoral Research Station of the Research Institute of Petroleum Exploration and Development of PetroChina in 2003.Now he is a professor and Ph.D.advisor in Southwest Petroleum University，and is mainly engaged in researches and teaching of oil and gas geologic exploration.E-mail: zhoulu9@126.com.

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摘要： 利用三维地震资料，对准噶尔盆地车排子地区侏罗系八道湾组各岩性段精细井震标定与构造解释，厘定出各岩性段在车排子地区的尖灭线位置和尖灭线类型，分析古地貌差异程度对尖灭线形成的控制作用。采用地层厚度法和地震层拉平法研究八道湾组各段沉积古地貌特征，分析断裂对古地貌形成的控制作用，结合构造演化剖面分析古地貌演化和被改造后的特征，开展地震属性、储集层地震反演和沉积相分析，重点分析古地貌对沉积和岩性的控制作用，再现了该地区沉积相及储集层段岩性分布特征。车排子地区八道湾组沉积古地貌起伏明显，呈坡—隆—凹组合特征，斜坡的陡缓程度对沉积相的类型和岩性及其沉积物的粗细具有重要控制作用。八道湾组不同沉积时期低隆起的形态和隆起幅度都存在较大的差别，且隆起幅度越高其聚砂特点越明显，沟谷既是输砂通道，也是聚砂的重要场所，现今砂体的分布与沟谷展布方向关系密切。

Abstract: Based on 3D seismic data，through fine well-to-seismic calibrations and structure elucidations，this paper has found out the position and type of the pinchout lines of different lithohorizons in the Jurassic Badaowan Formation in Chepaizi area of Jungar Basin;meanwhile，it has also discussed the controlling of pinchout line formed by the extent of palaeogeomorphology variation.The sedimentary palaeogeomorphological features of different lithohorizons have been shown after stratigraphical thickness analysis and seismic layer flattening. By analyzing the fault controlling effects of palaeogeomorphology，together with tectonic evolution profiles，we have systematically illustrated the palaeogeomorphology evolution and the altered palaeogeomorphological features. After analysis of seismic property，reservoir seismic inversion and sedimentary facies，especially the focus analysis on the controlling of deposition and lithology by palaeogeomorphology，we have revealed the characteristics of the sedimentary facies and lithology distribution of reservoir intervals in this area.The sedimentary palaeogeomorphology of Badaowan Formation in Chepaizi area undulates obviously，showing the slope-uplift-depression combination features; meantime, the slope gradient plays an important role in controlling the type of sedimentary facies，lithology and the sediment grain size.The shape and amplitude of low uplift in Badaowan Formation varies greatly during different deposition stages，while the tendency of gathering sand is more apparent when uplift amplitude increases.The valley is not only the channel to transport sediment，but also the key place to accumulate sand，due to which，the sand body distribution of nowadays is closely related to the valley extention direction.

Key words: Jungar Basin, Chepaizi area, Jurassic, Badaowan Formation, palaeogeomorphology, lithology distribution

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