石油学报 ›› 2005, Vol. 26 ›› Issue (1): 8-12.DOI: 10.7623/syxb200501002

• 地质勘探 • 上一篇    下一篇

准噶尔盆地西北缘扇体形成特征及油气分布规律

雷振宇1, 卞德智2, 杜社宽3, 蔚远江1, 马辉树3   

  1. 1. 中国石油勘探开发研究院 北京 100083;
    2. 中国石油天然气勘探开发公司 北京 100034;
    3. 中国石油克拉玛依油田分公司 新疆克拉玛依 834000
  • 收稿日期:2004-01-06 修回日期:2004-06-28 出版日期:2005-01-25 发布日期:2010-05-21
  • 作者简介:雷振宇,男,1960年12月生,高级工程师,1995年毕业于中国地质大学,获博士学位,现主要从事石油地质研究工作.E-mail:lzy@petrochina.com.cn
  • 基金资助:
    中国石油天然气集团公司"九五"重点科技攻关项目(970211)部分成果.

Characteristics of fan forming and oil-gas distribution in west-north margin of Junggar Basin

LEI Zheng-yu1, BIAN De-zhi2, DU She-kuan3, WEI Yuan-jiang1, MA Hui-shu3   

  1. 1. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing100083, China;
    2. China National Oil and Gas Exploration and Development Corporation, Beijing 100034, China;
    3. Keramay Oilfield Company, Keramay 834000, China
  • Received:2004-01-06 Revised:2004-06-28 Online:2005-01-25 Published:2010-05-21

摘要: 准噶尔盆地西北缘广泛发育二叠纪-侏罗纪冲积扇、水下扇、扇三角洲等砾质粗碎屑沉积.研究结果表明,其成因和分布与同期的断裂活动有密切的关系,从二叠纪-侏罗纪,构造活动逐渐减弱,扇体规模逐渐变小.在平面上,构造活动的位移导致了扇体的迁移,反映出构造活动对扇体分布的控制.总体来看,百口泉-夏子街地区构造活动性最强,延续时间最长,形成的扇体规模较大,叠置程度高且迁移明显;在车拐-克拉玛依地区,活动性较弱,形成的扇体规模小,叠置程度差且迁移小.油气聚集主要受到断裂构造和扇体的控制.由于断裂活动(迁移)规律的不同,导致不同时期、不同地区扇体的发育特征也不同,从而造成了不同构造带(部位)油气藏分布的差异.

关键词: 准噶尔盆地, 西北缘, 断裂活动, 扇体迁移, 油气分布

Abstract: The Permian-Jurassic alluvial-fan, subaqua-fan and delta-fan were widely distributed in the west-north margin of Junggar Basin. Their genesis and distribution are relative with the contemporaneous action of faults. Tectonic movement in this area gradually weakened from the Permian to the Jurassic period, and the dimensions of fan was reduced step by step. The movement of tectonic activity resulted in transfer and superimposition of various fan. Since the tectonic movement in Baikouquan-Xiazijie area was strong and extended for a long time, there developed some fans with large dimension, good superimposition and obvious migration. Contrarily, the tectonic movement in Chepaizi-Zhongguai area was weak and resulted in some small fans with poor superimposition and less migration. Fault and fan controlled the oil-gas gathering in this area. The active regularity of the faults is obviously different, which results in the fans developed in different stratum and causes the different oil-gas distribution.

Key words: Junggar Basin, west-north margin, fault movement, fan transfer, oil-gas distribution

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