| 渤海湾盆地渤中凹陷BZ26—2—1井馆陶组原油两期注入史 |
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| 引用本文： | 倪春华,包建平.渤海湾盆地渤中凹陷BZ26—2—1井馆陶组原油两期注入史[J].地质学刊,2008,32(3):161-164. |
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| 作者姓名： | 倪春华 包建平 |
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| 作者单位： | 中石化石油勘探开发研究院无锡石油地质研究所，长江大学地球化学系 |
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| 摘 要： | 渤中地区普遍存在油气多期运聚成藏。BZ26—2—1井馆陶组原油样品的地球化学分析表明，该原油具有降解和未降解的双重特征：①正构烷烃系列分布完整，且丰度高；②GC／MS分析检出相当丰富的25．降藿烷系列，且绝对浓度较高。这一现象表明馆陶组原油至少存在两期充注过程。
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| 关 键 词： | 生物降解 二次充注 渤中凹陷 渤海湾 |
A history of two-phase infusing of crude oil in Guantao Formation in well BZ26-2-1,Bozhong Depression, Bohai Bay Basin |
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| NI Chun-hu,BAO Jian-ping.A history of two-phase infusing of crude oil in Guantao Formation in well BZ26-2-1,Bozhong Depression, Bohai Bay Basin[J].Jiangsu Geology,2008,32(3):161-164. |
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| Authors: | NI Chun-hu BAO Jian-ping |
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| Institution: | NI Chun-hua, BAO Jian-ping ( 1. Wuxi Research Institute of Petroleum Geology, Research Institute of Petroleum Exploration and Development, SINOPEC, Wuxi 214151, Jiangsu; 2. Geochemistry of Yangtze University, Jingzhou 434023, Hubei) |
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| Abstract: | There widely exists oil and gas accumulation of migratory with multiplied characteristics in Bozhong region. Located in southwest of Bozhong depression region and west Bonan of raised region, the geochemical analysis of BZ26-2-1 crude oil samples of Guantao Formation showed that a double characteristics between degradable and non-degradable for crude oil existed in the region: complete distribution of normal paraffins series of high abundance; abundant 25-norhopane series was measured by GC/MS analysis with high absolute concentration. So, the phenomena proved that the crude oil of Guantao Formation was infused twice at least. |
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| Keywords: | Biological degradation Twice infusing Bozhong depression Bohai bay |
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