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| 合肥盆地石炭系——二叠系储层流体包裹体特征与油气运移研究 | |
| 引用本文： | 陈顺勇,俞昊,林春明,张霞,曲长伟,张妮,倪培,丁俊英.合肥盆地石炭系——二叠系储层流体包裹体特征与油气运移研究[J].高校地质学报,2015,21(1):131-137. |
| 作者姓名： | 陈顺勇 俞昊 林春明 张霞 曲长伟 张妮 倪培 丁俊英 |
| 作者单位： | 1. 内生金属矿床成矿机制研究国家重点实验室(南京大学),南京大学地球科学与工程学院,南京210023 2. 中国石油化工股份有限公司华东分公司,南京,210036 3. 金陵科技学院材料工程学院,南京,211169 |
| 基金项目： | 国家自然科学基金资助项目，南京大学“内生金属矿床成矿机制研究国家重点实验室”自主研究基金项目 |
| 摘 要： | 合肥盆地石炭系—二叠系具有油气勘探潜力,但研究薄弱。根据盆地中部安参1井石炭系—二叠系储层中流体包裹体的岩相学分析及显微测温,主要讨论了油气运移特征。结果表明,储层石英微裂隙及次生加大边中与油气包裹体伴生的盐水包裹体均一温度主要在145.2~150.2℃,155.6~160℃及169.9~177.9℃等三个温度区间。结合储层埋藏史-热史,发现储层主要经历了3期流体充注,时间在162.1~157.2 Ma之间(晚侏罗世)。通过包裹体冰点的测定,得到每一期流体的盐度特征,结合构造演化、烃源岩发育背景,推测油气主要是在石炭系—二叠系地层内部运移,同时也可能有新元古界、下古生界等深部的热液通过深大断裂运移到石炭系—二叠系,参与了油气的运聚,这在研究区今后的油气成藏研究中需要注意。 |
| 关 键 词： | 包裹体 油气运移 石炭系-二叠系 合肥盆地 |
The Features of Fluid Inclusions in Reservoir and Petroleum Migration of the Carboniferous-Permian Strata in Middle Hefei Basin |
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| CHEN Shunyong;YU Hao;LIN Chunming;ZHANG Xia;QU Changwei;ZHANG Ni;NI Pei;DING Junying.The Features of Fluid Inclusions in Reservoir and Petroleum Migration of the Carboniferous-Permian Strata in Middle Hefei Basin[J].Geological Journal of China Universities,2015,21(1):131-137. | |
| Authors: | CHEN Shunyong;YU Hao;LIN Chunming;ZHANG Xia;QU Changwei;ZHANG Ni;NI Pei;DING Junying |
| Institution: | CHEN Shunyong;YU Hao;LIN Chunming;ZHANG Xia;QU Changwei;ZHANG Ni;NI Pei;DING Junying;Skate Key Laboratory for Mineral Deposits Research, School of Earth Sciences and Engineering, Nanjing University;East China Branch Company,SINOPEC;Jinling Institute of Technologycail, Material engineering college; |
| Abstract: | Research about the Carboniferous-Permian reservoir in Hefei Basin with good petroleum potential is lacking. We mainly discuss the petroleum migration features through petrology and microthermometry analysis of the widely developed fluid inclusions in the well AnCan 1. The results show that the homogenization temperature of these aqueous inclusions in quartz micro-cracks and quartz secondary enlargement edge are mainly at 145.2~150.2℃, 155.6~160℃ and 169.9~177.9℃ . Combined with the burial history-thermal history, we speculate that the reservoir experienced three major oil and gas filling stages during 162.1~157.2 Ma (Late Jurassic). By measuring the freezing point of inclusions，we study the salinity characteristics. According to the tectonic evolution and development background of source rocks, we conclude that the petroleum migration mainly happened whthin the carboniferous-Permian strata. In the meantime the deep hydrothermal of the Neoproterozoic-Lower Paleozoic may also move to the Carboniferous-Permian through deep faults, and participated the migration and accumulation of oil and gas. Attention needs to paid to research on the hydrocarbon accumulation of this area in the future. |
| Keywords: | Fluid inclusions Petroleum migration Carboniferous-Permian stratum Hefei Basin |
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