新疆石油地质

新疆石油地质 ›› 2003, Vol. 24 ›› Issue (3): 202-204+176.

• 油气勘探 • 上一篇    下一篇

准噶尔盆地南缘辫状河三角洲沉积特征及储集性

张传林1, 赵省民2, 文志刚3   

  1. 1.中国地质大学,北京 100083;
    2.中国地质科学院矿产资源研究所, 北京 100037;
    3.江汉石油学院,湖北 荆州 434023
  • 收稿日期:2002-04-16 修回日期:2002-07-01 发布日期:2020-09-21
  • 作者简介:张传林（1963-）,男,湖北荆州人,高级工程师,在读博士研究生,石油地质。联系电话：0991-3662212

Secimentary Chracteristics and Reservoir Quality of Braided Deltas in Southern Margin of Junggar Basin

ZHANG Chuan-lin, ZHAO Xing-min, WEN Zhi-gang   

  • Received:2002-04-16 Revised:2002-07-01 Published:2020-09-21
  • About author:ZHANG Chuan-lin (1963-), Male, Senior Engineer, Petroleum Geology, China University of Geoscience, Beijing 100083, China

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摘要： 准噶尔盆地南缘的辫状河三角洲主要由砾岩、含砾砂岩和粗砂岩等粗碎屑岩组成,是本区重要的沉积相类型。该区的辫状河三角洲虽也由辫状河三角洲平原、辫状河三角洲前缘和辫状河前三角洲3个亚相组成,但辫状河三角洲平原亚相是其沉积的主体,辫状河三角洲前缘亚相则因发育于较陡的浅湖地带和被辫状分流河道冲刷而发育程度很差。同时,露头样品的测试结果和石油地质的综合分析表明,该区辫状河三角洲砂砾岩体的油气储集性较好,是区内较好的储集层之一。

关键词: 准噶尔盆地, 网状河, 三角洲, 碎屑岩, 储集层, 沉积相, 沉积特征

Abstract: The braided deltas in southern margin of Junggar basin as a significant type of sedimentary facies are mainly characterized by conglomerate, gravel sandstone and coarse-grained sandstone. The braided deltas, composed of the braid delta plain, braid delta front and prodelta, are dominated by the braid delta plains. The braid delta front sub-facies occupying the shallow lake is scoured by braid distributary channel sandstone and undeveloped. On the other hand, the results from measuring the outcrop samples and the integrated petroleum geological analysis show that the gravel sandstone body with better oil-gas accumulation is one of good reservoirs in this area.

Key words: Junggar basin, braided river, delta, clastic rock, reservoir, sedimentary facies, depositional feature

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