石油与天然气地质 ›› 2002, Vol. 23 ›› Issue (1): 26-29.doi: 10.11743/ogg20020105

• 油气空间 • 上一篇    下一篇

鄂尔多斯盆地中部奥陶系地层水有机组分特征

李贤庆1, 侯读杰2, 胡国艺3, 柳常青1, 李剑4   

  1. 1. 中国科学院广州地球化学研究所有机地球化学国家重点实验室, 广州, 510640;
    2. 江汉石油学院分析测试研究中心, 湖北荆州, 434102;
    3. 石油勘探开发科学研究院廊坊分院, 河北廊坊, 065007;
    4. 中国科学院长沙大地构造研究所, 湖南长沙, 410000
  • 收稿日期:2001-06-03 出版日期:2002-03-25 发布日期:2012-01-16
  • 基金项目:

    国家“九五”重点科技攻关项目(99-110-01-03-02);湖北省自然科学基金项目的部分成果

CHARACTERISTICSOFORGANIC COMPOSITIONS IN FORMATION WATERS FROM CENTRAL ORDOS BASIN

Li Xianqing1, Hou Dujie2, Hu Guoyi3, Liu Changqing1, Li Jian4   

  1. 1. The state's Lab. of Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou;
    2. Jianghan Petroleum Institute, Jiangzhou, Hubei;
    3. Langfang Branch, Research Institute Petroleum Exploration and Development, Langfang, Hebei;
    4. Changsha Institute of Geotectonics, Chinese Academy of Sciences, Changsha, Hunan
  • Received:2001-06-03 Online:2002-03-25 Published:2012-01-16

PDF (PC)

882

被引次数

16

摘要：

毛细管等速电泳法分析结果表明 :鄂尔多斯盆地中部气田奥陶系地层水中有机酸总量分布范围为9.17～94.49mg/L(主要在20～50mg/L之间),明显高于石炭二叠系地层水中有机酸总量,但两者都具有乙酸 甲酸>丙酸>丁酸的组成特征;烷基酚总含量为0.57～4.73mg/L,平均1.77mg/L,其中1.0mg/L以下的占47.06%,1.0～3.0mg/L的占35.29%,>3.0mg/L的占17.65%。平面上,中部气田马家沟组地层水中有机酸和苯酚含量分布均呈现非均质性,分别出现若干个高值区(45mg/L和>2.0mg/L),这些高值区与中部气田天然气藏分布富集区基合吻合。

关键词: 地层水, 有机酸, 烷基酚, 奥陶系, 天然气藏, 鄂尔多斯盆地

Abstract:

Isotachophoresis result indicates that the total organic acids concentration of Ordovician formation waters range from 9.17mg/l to 94.49mg/l and are obviously higher than those of Permo Carboniferous formation waters.But both of them have the same composition characteristics of acetic acidformic acid>propanoic acid>butanoic acid.The total alkyl phenol contents of Ordovician formation water range from 0.57mg/l to 4.73mg/l,and the average concentration is 1.77mg/l.Among the samples of phenol detection,47.06% samples are less than 1.0mg/l,and 35.29% samples are 1.0～3.0mg/l,and only 17.65% samples are more than 3.0mg/l.The concentration distribution of organic acids and phenols in the Majiagou formation waters occurs obvious heterogeneity.There are several higher organic acids and phenols concentration areas in the central part of Ordos Basin.High organic acid and phenol concentration areas of formation water(organic acids>45mg/l and phenols>2.0mg/l) are consistent with natureal gas reservoir enrichment areas in the central part of Ordos Basin.

Key words: Formation waters, organic acid, alkyl phenols, Ordovican, gas reservoir, ordos Basin

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