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| 焉耆盆地流体包裹体特征与油气成藏期次 | |
| 引用本文： | 于明德,王璞珺,施昌瑞,李凤勋,白海琴.焉耆盆地流体包裹体特征与油气成藏期次[J].西北地质,2009,42(1):115-121. |
| 作者姓名： | 于明德 王璞珺 施昌瑞 李凤勋 白海琴 |
| 作者单位： | 1. 吉林大学地球科学学院,吉林,长春,130061;中国石化河南油田分公司勘探开发研究院,河南,南阳,473132 2. 吉林大学地球科学学院,吉林,长春,130061 3. 中国石化河南石油勘探局地质录井公司,河南,南阳,473132 4. 中国石化河南油田分公司勘探开发研究院,河南,南阳,473132 |
| 基金项目： | 国家自然科学基金重大项目课题 |
| 摘 要： | 为进一步落实焉耆盆地博湖坳陷的油气成藏期次，采用储层成岩矿物及其流体包裹体测试分析法，并结合自生伊利石同位索年龄分析等各种研究成果来综合确定盆地油气成藏期次。盆地侏罗系储层中流体包裹体主要分布于三工河组和八道湾组，其均一温度多为101～110℃和121～130℃，组分中的正构烷烃碳数呈双峰态，前主峰为18或20，后主峰为26或27，这些特征指示盆地在侏罗纪中晚期发生两次成藏作用：第一期形成于源岩处于低成熟阶段的中晚侏罗世；第二期形成于源岩处于成熟阶段的侏罗纪末。 |
| 关 键 词： | 焉耆盆地 流体包裹体 均一温度 油气成藏期 |
Fluid Inclusion Characteristics and Oil-Gas Accumulation Phases in Yanqi Basin |
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| YU Ming-de,WANG Pu-jun,SHI Chang-rui,LI Feng-xun,BAI Hai-qin.Fluid Inclusion Characteristics and Oil-Gas Accumulation Phases in Yanqi Basin[J].Northwestern Geology,2009,42(1):115-121. | |
| Authors: | YU Ming-de WANG Pu-jun SHI Chang-rui LI Feng-xun BAI Hai-qin |
| Institution: | YU Ming-de, WANG Pu-jun, SHI Chang-rui, LI Feng-xun,BAI Hai-qin (1. College of Earth Sciences, Jilin University, Changchun 130061, Jilin , China; 2. Research Institute of Exploration and Development of Henan Oil field Branch Company,SINOPC, Nanyang 473132, Henan, China ; 3. Henan Petroleum Exploration Bureau Geologging Company ,S INOPEC , Nanyang 473132, Henan, China) |
| Abstract: | In order to further make certain the oil-gas accumulation phases of Bohu sag in Yanqi basin, we determined the oil-gas accumulation phases by testing the reservoir minerals and the fluid inclusions, analyzing the autogenetic illite isotope age, and using other research achievements. The fluid inclusions of Jurassic reservoir in Yanqi basin of Northwest China are mainly distributed in Sangonghe Formation and Badaowan Formation, with its homogeneous temperature mostly being 101-110℃ and 121-130℃. In its inclusion component, the N-alkene Carbon atomic numbers show a bimodal shape, with the first peak being 18 or 20 and the latter peak being 26 or 27. These characteristics indicate that the basin had two periods of oil-gas accumulation during the mid-late Jurassic Period, with the first period being the mid-late Jurassic when the source rocks were in a low mature stage and the second period being the end of Jurassic when the source rocks were in a mature stage. |
| Keywords: | Yanqi Basin fluid inclusion homogeneous temperature oil-gas accumulation phases |
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