| 准噶尔盆地西北缘地层水化学特征与油气关系研究 |
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| 引用本文： | 陈建平,查明,周瑶琪.准噶尔盆地西北缘地层水化学特征与油气关系研究[J].地球与环境,2000,28(3):54-58. |
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| 作者姓名： | 陈建平 查明 周瑶琪 |
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| 作者单位： | 石油大学(华东)资源系,山东省东营市,257061 |
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| 基金项目： | 新疆石油管理局!《准噶尔盆地三次资源评价》项目的部分成果 |
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| 摘 要： | 准噶尔盆地西北缘分为超覆尖灭带、断阶带、斜坡区。本文讨论了不同区带地层水化学特征及其与油气运移聚集的关系。研究结果表明 ,高、过成熟阶段烃源岩生成的轻质油气在其运移聚集过程中 ,伴生的CO2 进入地层水中 ,在一定条件下会形成高矿化度NaHCO3 型地层水 ,而以高矿化度NaHCO3 型地层水为底水的油藏 ,原油密度较轻 ,为轻质原油。在近断层处 ,中、高矿化度的MgCl2 、Ns2 SO4 型地层水 ,可作为油气水沿断裂运移的证据。
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| 关 键 词： | 地层水 高矿化度NaHCO_3型水 断层 通道 准噶尔盆地 |
CHEMICAL CHARACTERISTICS OF FORMATION WATER IN RELATION WITH OIL/GAS IN THE NORTHWESTERH PARTS OF JUNGGAR BASIN |
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| Chen Jianping,Cha Ming,Zhou Yaoqi.CHEMICAL CHARACTERISTICS OF FORMATION WATER IN RELATION WITH OIL/GAS IN THE NORTHWESTERH PARTS OF JUNGGAR BASIN[J].Earth and Environment,2000,28(3):54-58. |
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| Authors: | Chen Jianping Cha Ming Zhou Yaoqi |
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| Abstract: | The northwestern parts of the Junggar Basin may be classified as the overlying pinch\|out zone, fault zones and slope zones. The paper discusses the chemical characteristics of formation water and their relation with oil/gas migration and accumulation. It is found that highly\|mineralized NaHCO\-3\|typed formation water was formed from accompanied CO\-2 entering formation water, when light oil/gas generated from highly mature source rocks migrated and accumulated. Moderately to highly mineralized Na\-2SO\-4\|typed formation water is the evidence of oil/gas migration along faults. |
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| Keywords: | formation water highly mineralized NaHCO_3-typed formation water fault migration path Junggar Basin |
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