新疆石油地质

新疆石油地质 ›› 2009, Vol. 30 ›› Issue (3): 304-306.

• 油气勘探 • 上一篇    下一篇

准噶尔盆地乌夏地区二叠系沉积特征及有利储集层

鄢继华1, 崔永北2, 陈世悦1, 刘振宇3   

  1. 1.中国石油大学(华东) 地球资源与信息学院,山东 东营257061;
    2.中国石化 胜利油田有限责任公司 胜利采油厂,山东 东营257051;
    3.中国石油 新疆油田分公司 勘探开发研究院,新疆 克拉玛依834000
  • 收稿日期:2008-09-16 出版日期:2009-06-01 发布日期:2020-10-29
  • 作者简介:鄢继华(1977-),男,辽宁盘锦人,讲师,石油地质,(Tel)13563354035(E-mail)upcyanjhua@gmail.com.

Sedimentary Features and Favorable Reservoirs of Permian in Wu-Xia Area of Junggar Basin

YAN Jji-hua1, CUI Yong-bei2, CHEN Shi-yue1, LU Zhen-yu3   

  1. 1. College of Geo-Resources and Information, China University of Petroleum, Dongying, Shandong 257061, China;
    2. Shengli Production Plant, Shengli Oilfield Company Ltd, Sinopec, Dongying, Shandong 257051;
    3. Research Institute of Exploration and Development,Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China
  • Received:2008-09-16 Online:2009-06-01 Published:2020-10-29

PDF

231

摘要： 准噶尔盆地乌夏地区二叠纪处于 前陆盆地的早、中期,受断层活动、火山作用和物源等不同因素影响,早二叠世发育了一套由火山岩向火山碎屑岩、正常碎屑岩过渡的岩性组合,火山作用总体向上逐渐减弱。中、晚二叠世前陆盆地逐渐向坳陷盆地过渡,其中风城组沉积期为二叠纪最大湖侵期,沉积中心向南迁移;夏子街组沉积期和下乌尔禾组沉积期广泛发育扇三角洲-湖泊相沉积组合,自下而上为基准面上升-下降-上升的旋回。岩性和构造控制了火山岩储集层的发育,沉积相则控制了碎屑岩储集层的发育。水下分流主河道砂体的粒内溶孔、构造活动带火山碎屑岩的裂缝、深层火山岩中的气孔是最为有利的储集空间。

关键词: 准噶尔盆地, 乌尔禾, 夏子街, 二叠系, 沉积特征, 储集层

Abstract: The Permian of Wuerhe-Xiazjie (Wu-Xia) area in Junggar basin was in the early-middle period of foreland basin. Being affected by different factors, such as fault movement, volcanic action and sedimentary source, in the Early Permian, there developed volcanic rock, pyroclastic rock and normal clastic rock. The volcanic action was weakened gradually upward. In the Middle-Late Permian, the foreland basin changed to down-warped basin gradually. And its Fengcheng depositional stage there was a big lake transgression and the depocenter migrated to the south. In Xiazijie depositional stage and Lower W uerhe depositional stage, there widely developed fan delta and lacustrine facies assemblage with a basal level cycle of ascending- descending- ascending from botom to top. The development of volcanic reservoirs are controlled by lithology and structure, while that of clastic reservoirs by sedimentary facies. In general, the most favorable reservoir space types include the intragranular dissolved pore in the sands of underwater distributary channel of fan delta front, the fissures of pyroclastic rock in mobile belt and the vesicular pore of volcanic rock in deep zone.

Key words: Junggar basin, Wuerhe, Xiazijie, Permian, sedimentary feature, reservoir

中图分类号: