西南石油大学学报(自然科学版)

• 地质勘探 • 上一篇    下一篇

准噶尔盆地玛湖凹陷东斜坡深层成藏领域研究

陈刚强1,阿布力米提1,白雷2,张家浩1,卞保力1   

  1. 1. 中国石油新疆油田公司勘探开发研究院,新疆克拉玛依834000
    2. 中国石油新疆油田公司实验检测研究院,新疆克拉玛依834000
  • 出版日期:2013-12-01 发布日期:2013-12-01

Petroleum Accumulation Field in the Deep Strata of the Eastern Slope Area
of the Mahu Sag,Junggar Basin

Chen Gangqiang1, Ablimit1, Bai Lei2, Zhang Jiahao1, Bian Baoli1   

  1. 1. Research Institute of Exploration and Development,PetroChina Xinjiang Oilfield Company,Kelamayi,Xinjiang 834000,China
    2. Institute of Experiment and Analysis,PetroChina Xinjiang Oilfield Company,Kelamayi,Xinjiang 834000,China
  • Online:2013-12-01 Published:2013-12-01

摘要:

为深化准噶尔盆地玛湖斜坡区的油气勘探,通过分析成藏特征与有利条件,研究了东斜坡地区深层的油气成
藏和勘探新领域。结果发现,二叠系/三叠系不整合界面上下是油气成藏和勘探的重要目标,其目的层系油质轻、保存
条件好、存在有利相带与相对优质储层,因而具备形成高产的潜力,并可能主要位于扇三角洲前缘亚相。通过单井相、
地震相分析和井震结合等方法,预测了有利相带的空间分布及主要发育的圈闭类型,发现有利勘探面积大,岩性—地
层圈闭广泛发育,且当前勘探程度低,故勘探前景广阔,可望开辟勘探新领域,值得在下步勘探中加强探索。

关键词: 准噶尔盆地玛湖凹陷;斜坡区;深层;岩性&mdash, 地层油气藏;油气成藏

Abstract:

In order to deepen the hydrocarbon exploration in the slope area of the Mahu Sag,northwestern Junggar Basin,
and to provide a reference for studies with similar geological settings worldwide,we investigated the field of hydrocarbon
accumulation and exploration in the deep strata of the eastern slope area. This was conducted based on analyzing accumulation
features and conditions. Results show that the deep strata surrounding the Permian-Triassic unconformity is a key target of
exploration in the studied area. In the target Permian and Triassic reservoirs,the oil is light in nature and they have good
preserving conditions,favorable facies and relatively good-quality reservoir. Thus,high production may be likely,especially
in the sub-facies of fan delta front. Combined with analyses of sedimentary and seismic facies and an integration/comparison
of wells and seismic data,we investigated the spatial distribution of favorable facies and the dominant trap types. Results show
that the favorable exploration area is large and the lithologic and stratigraphic trap is widely developed. Considering the low
exploration level currently,the exploration prospect is wide and large. This likely provides a new exploration field and,thus,
deserves to be strengthened in the future exploration.

Key words: Mahu sag of the Junggar Basin, slope area, deep strata, lithologic and stratigraphic hydrocarbon pool, petroleum
accumulation