| Geochemical characteristics of crude oils from Well Zheng-1 in the Junggar Basin, Xinjiang, China |
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| 作者姓名： | 李志明 张长江 秦建中 张渠 范明 刘文斌 张志荣 |
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| 作者单位： | Wuxi Research Institute of Petroleum Geology SINOPEC，Wuxi Research Institute of Petroleum Geology SINOPEC，Wuxi Research Institute of Petroleum Geology SINOPEC，Wuxi Research Institute of Petroleum Geology SINOPEC，Wuxi Research Institute of Petroleum Geology SINOPEC，Wuxi Research Institute of Petroleum Geology SINOPEC，Wuxi Research Institute of Petroleum Geology SINOPEC，Wuxi 214151 China，Wuxi 214151 China，Wuxi 214151 China，Wuxi 214151 China，Wuxi 214151 China，Wuxi 214151 China，Wuxi 214151 China |
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| 基金项目： | Acknowledgements This research project was financially supported by the funds for Project 973 under the Major Basic Research Program of the People＇s Republic of China （Grant No. 2005CB422102）. |
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| 摘 要： | Well Zheng-1 is located in the combined area of the central uplift and the north Tianshan piedmont depression in the Junggar Basin. Two oil-bearing beds are recognized at 4788–4797 m of the Lower Cretaceous Tugulu Formation (K1tg) and 4808.5–4812.5 m of the Lower Jurassic Sangonghe Formation (J1s). The geochemical characteristics of family composition, carbon isotopic composition, saturated hydrocarbons, sterane and terpane biomarkers and carotane of two crude oils are described in this paper. The results show that the geochemical characteristics of the two crude oils are basically similar to each other, indicating they were all derived mainly from the high mature, brine, algae-rich lake facies sediments. Oil-source correlation revealed that crude oils of the two beds were derived mainly from the source rocks of Permian and mixed by the oil derived from the source rocks of Jurassic and Triassic. This is consistent with the geological background with several sets of source rocks in the area studied.
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| 关 键 词： | 新疆 准噶尔盆地 Zheng-1井 原油 地球化学特征 |
| 收稿时间： | 2006-02-14 |
| 修稿时间： | 2006-04-07 |
Geochemical characteristics of crude oils from Well Zheng-1 in the Junggar Basin,Xinjiang, China |
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| Li?Zhiming,Zhang?Changjiang,Qin?Jianzhong,Zhang?Qu,Fan?Ming,Liu?Wenbin,Zhang?Zhirong.Geochemical characteristics of crude oils from Well Zheng-1 in the Junggar Basin, Xinjiang, China[J].Chinese Journal of Geochemistry,2007,26(2):163-169. |
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| Authors: | Li Zhiming Zhang Changjiang Qin Jianzhong Zhang Qu Fan Ming Liu Wenbin Zhang Zhirong |
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| Institution: | (1) Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, 214151, China |
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| Abstract: | Well Zheng-1 is located in the combined area of the central uplift and the north Tianshan piedmont depression in the Junggar
Basin. Two oil-bearing beds are recognized at 4788–4797 m of the Lower Cretaceous Tugulu Formation (K1tg) and 4808.5–4812.5 m of the Lower Jurassic Sangonghe Formation (J1s). The geochemical characteristics of family composition, carbon isotopic composition, saturated hydrocarbons, sterane and
terpane biomarkers and carotane of two crude oils are described in this paper. The results show that the geochemical characteristics
of the two crude oils are basically similar to each other, indicating they were all derived mainly from the high mature, brine,
algae-rich lake facies sediments. Oil-source correlation revealed that crude oils of the two beds were derived mainly from
the source rocks of Permian and mixed by the oil derived from the source rocks of Jurassic and Triassic. This is consistent
with the geological background with several sets of source rocks in the area studied. |
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| Keywords: | crude oil geochemical characteristics oil-source correlation Well Zheng-1 Junggar Basin Xinjiang |
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