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| 准噶尔盆地中部Ⅰ区侏罗系油藏古今油水界面及成藏史分析 | |
| 引用本文： | 李伟,张枝焕,李海平,韩立国,王青.准噶尔盆地中部Ⅰ区侏罗系油藏古今油水界面及成藏史分析[J].现代地质,2005,19(3):432-440. |
| 作者姓名： | 李伟 张枝焕 李海平 韩立国 王青 |
| 作者单位： | 1. 中国石油大学,石油天然气成藏机理教育部重点实验室,北京,102249 2. 中原石油勘探局,物探公司,河南,濮阳,457001 3. 胜利油田有限公司,地质科学研究院,山东,东营,257015 |
| 基金项目： | 高蜡凝析油化学组成精细剖析和成因机理研究（40172056）. |
| 摘 要： | 分析了准噶尔盆地中部Ⅰ区侏罗系三工河组砂岩储层的有机质分布特征,主要利用储层样品中可溶有机质和储层热解资料,确定了现今油水界面;通过储层中油气包裹体特征分析,推测出古油水界面的位置,分析了古今油水界面的变化,认为中部Ⅰ区块各油藏具有独立的油水界面,是相互独立的,并且各油藏经历过后期的调整,现今油藏为调整型或残留型油藏,油藏调整是车—莫古隆起演化的结果;通过储层中油气包裹体与开放孔隙抽提物成分对比,表明征1井储层包裹体与开放孔隙抽提物生物标志化合物的成熟度参数比较接近,而且甾烷系列化合物指纹和五环三萜烷指纹分布特征非常相似,庄1井、沙1井的储层含油包裹体与开放孔隙抽提物中各种生标参数差别相对较大。结合地质背景分析,认为庄1井和沙1井侏罗系三工河组砂岩储层具有多源多期油气注入的特点,早期油气主要来自于北部盆1井西凹陷,晚期混入了来自于南部昌吉凹陷的油气;征1井侏罗系三工河组油藏中的油气主要来自于南部凹陷。 |
| 关 键 词： | 准噶尔盆地 古油水界面 含油包裹体 生物标志物参数 |
| 文章编号： | 1000-8527(2005)03-0432-09 |
| 收稿时间： | 04 12 2005 12:00AM |
| 修稿时间： | 06 6 2005 12:00AM |
The Change of Oil-water Interface of Jurassic Reservoirs and History of Petroleum Accumulation in the Block Ⅰ , Center of Junggar Basin |
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| LI Wei,ZHANG Zhi-huan,LI Hai-ping,HAN Li-guo,Wang Qing.The Change of Oil-water Interface of Jurassic Reservoirs and History of Petroleum Accumulation in the Block Ⅰ , Center of Junggar Basin[J].Geoscience——Journal of Graduate School,China University of Geosciences,2005,19(3):432-440. | |
| Authors: | LI Wei ZHANG Zhi-huan LI Hai-ping HAN Li-guo Wang Qing |
| Abstract: | The present reservoir oil-water interface of each well in the Block Ⅰ, center of Junggar basin is predicted through analyzing the chemically extracted hydrocarbon residues and Rock-eval data combining with comprehensive log interpretation. The frequency of mineral grains containing oil-bearing fluid inclusions (the GOI number) reflects the palaeo-oil saturation experienced in a sandstone reservoir irrespective of the present fluid phase. The location of the original oil-water interface of each well is defined through analyzing the detailed GOI mapping. It is concluded that the original oil-water contact is lower than the present contact;A detail study is undertaken to compare molecular parameters obtained from the analyses of core extracts and oil-bearing fluid inclusions. It is found that the molecular parameters of core extracts and oil-bearing fluid inclusions of well Zheng 1 are similar,while those of wells Sha 1 and Zhuang 1 are significantly different. Through the successful case study,it is predicted that the oils of well Zheng 1 are mainly derived from the source rocks of Changji sag in the south; the oils of wells Sha 1 and Zhuang 1 are mixed oils, which are generated from the source rocks in the north and Changji sag. |
| Keywords: | Junggar basin original oil-water contact oil-bearing fluid inclusion biomarker parameter |
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