| 鄂尔多斯盆地延长矿区延长组流体包裹体特征 |
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| 关键词:homogenization temperature fluid inclusions accumulation of hydrocarbon phases and stages of hydrocarbon accumulation Ordos Basin Yanchang Formation |
| 基金项目:国家重点基础研究发展规划(973)项目(编号: 2003CB214600), 教育部创新团队发展计划(编号: IRT0559)和西北大学地质学系创新基金项目(编号: XDCX04-15)资助。 |
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| Characteristics of Fluid Inclusions in Yanchang Formation of the Yanchang Oilfield, Ordos Basin |
| The study of fluid inclusions is very important in detecting the oil migration and accumulation process and the formation time of oil reservoirs. Besides a microscopic analysis of fluid inclusions, the authors divided their types and, in combination with diagenesis and with the help of other useful information, determined the formation stages of fluid inclusions and measured the homogenization temperature so as to analyze the hydrocarbon accumu1ation history of Yanchang Formation in the Yanchang Oilfield. The result shows that the homogenization temperatures of most fluid inclusions in Yanchang Formation are concentrated in the range of 105～125℃, with an increasing trend with the depth. Considering also the burial and geothermal history, the authors consider that there existed at least a main oil and gas reservoir formation period in Yanchang Formation of the Yanchang Oilfield, which took place at 110～100 Ma BP. This means that the late stage of Early Cretaceous seems to be the main hydrocarbon accumulation period in the Yanchang Oilfield. |
| LIU Chao,WANG Zhen-liang,LIU Chi-yang,SUN Guo-zhi.2009.Characteristics of Fluid Inclusions in Yanchang Formation of the Yanchang Oilfield, Ordos Basin[J].Acta Geoscientica Sinica,30(2):215-220. |
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