新疆石油地质

新疆石油地质 ›› 2004, Vol. 25 ›› Issue (3): 254-258.

• 油气勘探 • 上一篇    下一篇

徐家围子断陷构造样式与深层天然气聚集

刘学锋1,2, 孟令奎2   

  1. 1.长江大学地球科学系,湖北荆州434023;
    2.武汉大学遥感信息工程学院,湖北武汉430079
  • 收稿日期:2003-07-28 发布日期:2020-09-18
  • 作者简介:刘学锋(1967-),男,湖北荆门人，副教授,石油地质。联系电话:0716-8430441。

Structural Styles and Deep Gas Accumulation in Xujiaweizi Fault Depression of Songliao Basin

LIU Xue-feng1,2, MENG Ling-kui1   

  1. 1. Department of Geoscience, Yangtze River University, Jingzhou, Hubei 434023,China;
    2. Institute of Remote Sensing and Information Engineering, W uhan University, Wuhan, Hubei 430079, China
  • Received:2003-07-28 Published:2020-09-18

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摘要： 以J.D.Lowell 的构造样式(structural styles)分类方案为基础,对研究区构造样式作了详细分类研究,探讨了不同构造样式中可能出现的天然气圈闭类型。根据基底是否卷入，将构造样式分为基底卷入型和盖层滑脱型两大类,并进一步根据不同的应力环境、不同的构造组合形式划分出9种基本构造样式。构造样式的发育主要受断陷期近南北向压扭应力场的控制,晚期北西-南东向挤压应力场只起次要控制作用。每一种构造样式对深层天然气聚集都有不同程度的.控制作用,其中,低角度控陷边界正断层控制的箕状断凹与断垒组合、同沉积型挤压背斜、逆冲褶皱组合、断弯背斜及其上覆同沉积背斜组合等样式中发育的背斜、断背斜型圈闭，最有利于松辽盆地北部徐家围子地区天然气的聚集。

关键词: 松辽盆地, 徐家围子油田, 构造, 天然气, 圈闭

Abstract: Based on the structural styles classification of J.D. Lowell, detailed classification and study of structural styles in the studiedarea are made, and possible natural gas traps in these structural styles are investigated. Considering whether the basement being involvedor not, the structural styles could be divided into two major types like basement involvement and caprock detachment. According to thedifferent stress env ironments and the different structural assemblages, nine basic structural styles are identified. The study shows that de-velopment of the structural styles is primarily controlled by the compresso-shear stress field with near S-N orientation occurred in faultdepression stage, while the late compressive stress field with NW-SE orientation only has a minor controlling process. Each of structural .styles has its control to the gas accumulation in some degree. Among them, the anticline, anticline-faulted traps developed in assemblageof half graben-like and fault convex controlled by low angle boundary fault, syn-sedimentary compressive anticline, thrust-fold assemblage,fault-bended anticline and its overlaying syn-sedimentary anticline are in favour of natural gas accumulation in Xujiaweizi area of north-ern Songliao basin.

Key words: Keywords: Songliao basin;Xujiaweizi oil field, structure, natural gas;trap

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