Hydrocarbon accumulation characteristics of the Neogene reservoirs in Huatugou Oilfield of Qaidam Basin

被引：0
|
作者：
Xu, Hao [1 ]
Zhang, Junfeng [2 ]
Tang, Dazhen [1 ]
Yin, Wei [3 ]
Zhang, Wenzhong [4 ]
Chen, Xiaozhi [1 ]
机构：
[1] Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism, China University of Geosciences, Beijing 100083, China
[2] PetroChina Exploration and Production Company, Beijing 100724, China
[3] PetroChina Exploration and Development Research Institute, Beijing 100083, China
[4] China United Coalbed Methane Corporation Ltd., Beijing 100011, China
来源：
Shiyou Xuebao/Acta Petrolei Sinica | 2010年 / 31卷 / 01期
关键词：
Oil well flooding - Temperature - Fluid inclusion - Filling - Mineralogy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Through analyzing the main types, micro-fluorescence and thermodynamic characteristics of fluid inclusions in the Neogene reservoir of Huatugou Oilfield, the process of fluid filling into reservoirs could be divided into two stages including low-temperature and low-salinity fluid, high-temperature and high-salinity fluid. The study on the burial history and thermal history showed that hydrocarbon filling in the first stage was mainly a trace amount of immature hydrocarbon and happened at the middle Pliocene Epoch. The hydrocarbon filling in the second stage was a large scale filling of oil and gas and happened in the late Pliocene Epoch. The second episodic petroleum accumulation process lasted a short time and could be a fast and efficient petroleum-charging model.
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页码：31 / 35
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