新疆石油地质

新疆石油地质 ›› 2011, Vol. 32 ›› Issue (2): 109-111.

• 油气勘探 • 上一篇    下一篇

准噶尔盆地阜康凹陷浊积扇系统成藏特征

黄芸, 马志亮, 陈勇, 袁波, 王军, 吴玉萍   

  1. 中国石油新疆油田分公司勘探开发研究院地球物理研究所,乌鲁木齐 830011
  • 收稿日期:2010-11-15 发布日期:2020-08-11
  • 作者简介:黄芸（1969-）,女,安徽临泉人,高级工程师,硕士,油气勘探,（Tel）0991-4299379（E-mail）huangyun@petrochina.com.cn.

Discovery of Slump-Turbidity Fan System in Fukang Sag of Junggar Basin and Feature of Its Hydrocarbon Accumulation

HUANG Yun, MA Zhi-liang, CHEN Yong, YUAN Bo, WANG Jun, WU Yu-ping   

  1. Institute of Geophysics, Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Urumqi, Xinjiang 830011, China
  • Received:2010-11-15 Published:2020-08-11

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摘要： 在准噶尔盆地阜康凹陷东侧侏罗系三工河组中发现了湖相滑塌浊积扇系统。滑塌浊积扇均发育在坡折带之下,位于深水湖相泥岩中,其上方则发育滨浅湖相三角洲沉积,是三角洲前缘砂体在触发因素作用下,主要以浊流方式再次向深水区搬运沉积的结果。扇体中的水道砂体为良好的油气储集体。由于滑塌浊积扇砂体直接被深水湖相泥页岩包裹,临近烃源岩,可以形成良好的岩性油气藏。滑塌浊积扇系统的发现对准噶尔盆地阜康凹陷东斜坡侏罗系岩性油气藏的勘探意义重大,是该区域一个新的油气勘探领域。

关键词: 准噶尔盆地, 阜康凹陷, 滑塌浊积扇, 沉积特征, 岩性油气藏

Abstract: The slump-turbidity fan systems discovered in Sangonghe formation of Jurassic in eastern Fukang sag of the Junggar basin occur below the slope break in deep-water lake shale environment, above which there exist delta deposits of shore-shallow lake facies. The slump-turbidity fan systems are resulted from re-migrating toward deep-water position and deposition of the delta frontal sand bodies in form of turbid flow under the process of trigger factor. The channel sands in the fan systems are as good oil-gas reservoirs. Because the slump-turbidity fan sands directly covered by deep-water lacustrine shale are close to the source rocks, they could form good lithologic reservoirs. It is concluded that the slump-turbidity fan systems should be a new domain for petroleum exploration of the Jurassic in eastern Junggar basin.

Key words: Junggar basin, Fukang sag, slump-turbidity fan, sedimentary characteristic, lithologic reservoir

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