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    鄂尔多斯盆地东部上古生界石千峰组低压气藏特征

    杨华 姬红 李振宏 孙六一

    杨华, 姬红, 李振宏, 孙六一, 2004. 鄂尔多斯盆地东部上古生界石千峰组低压气藏特征. 地球科学, 29(4): 413-419.
    引用本文: 杨华, 姬红, 李振宏, 孙六一, 2004. 鄂尔多斯盆地东部上古生界石千峰组低压气藏特征. 地球科学, 29(4): 413-419.
    YANG Hua, JI Hong, LI Zhen-hong, SUN Liu-yi, 2004. Characteristics of Underpressured Gas Pool in Upper Paleozoic Shiqianfeng Formation of Eastern Ordos Basin. Earth Science, 29(4): 413-419.
    Citation: YANG Hua, JI Hong, LI Zhen-hong, SUN Liu-yi, 2004. Characteristics of Underpressured Gas Pool in Upper Paleozoic Shiqianfeng Formation of Eastern Ordos Basin. Earth Science, 29(4): 413-419.

    鄂尔多斯盆地东部上古生界石千峰组低压气藏特征

    基金项目: 

    国家重点基础研究发展规划“973”项目 2001CB209104-5

    详细信息
      作者简介:

      杨华(1963-), 男, 高级工程师, 主要从事油气藏方向的研究.E-mail: yh_cq@petrochina.com.cn

    • 中图分类号: P618.130

    Characteristics of Underpressured Gas Pool in Upper Paleozoic Shiqianfeng Formation of Eastern Ordos Basin

    • 摘要: 鄂尔多斯盆地的气源主要来自于山西组-太原组的海陆交互相煤系地层, 上石盒子组沉积了一套巨厚的泥岩, 具有很强的封盖能力, 天然气很难穿层运移.近年来, 相继在盆地东部的石千峰组地层中发现了一系列次生气藏, 其形成机理逐步引起了勘探家的关注.根据次生气藏的特点, 结合包裹体测试计算, 认为其形成原因主要是由于下部超压地层进行超压释放, 从而在区域性盖层内部形成一系列泄压通道, 原生气藏泄漏而形成的.形成过程主要经历了下部高温高压原生气藏的形成、原生气藏泄压与次生气藏的形成、次生气藏的长时间调整3个阶段.

       

    • 图  1  鄂尔多斯盆地上古生界生气强度及含气层位

      Fig.  1.  Gassource intension and gas-bearing strata of Upper Paleozoic in Ordos basin

      图  2  鄂尔多斯盆地上古生界气源对比

      Fig.  2.  Gas source contrast of Upper Paleozoic in Ordos basin

      图  3  气藏与压力系数匹配关系

      Fig.  3.  Matched relationship between reservoir and pressure

      图  4  石千峰组气藏成藏模式

      Fig.  4.  Gas pools model of Shiqianfeng Formation

      表  1  鄂尔多斯盆地东部上古生界压力统计

      Table  1.   Strata pressure of Upper Paleozoic in eastern Ordos basin

      表  2  鄂尔多斯盆地东部天然气组分分析

      Table  2.   Analysis of gas component in eastern Ordos basin

      表  3  鄂尔多斯盆地东部地区包裹体形成温度压力

      Table  3.   Temperature and pressure of inclusion forming in eastern Ordos basin

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    出版历程
    • 收稿日期:  2004-03-19
    • 刊出日期:  2004-07-25

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