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中文摘要：
在对中扬子湘西地隧新发现的王村古油藏储层沥青地球化学特征进行分析的基础上，探讨了古油减的油源。王村占油藏下奥陶统和上二寒武统追屯组储层沥青反射率介于3．09％～4．08％之间，具有富氖、贫氧、富碳的特征，为高热演化的焦沥青。下奥陶统和上寒武统储层沥青地球化学特征非常相似，揭示具有共同的来源。应用生物标志化合物、碳同位索方法开腱的油源对比研究表明，王村古油藏沥青主要源自下寒武统烃源岩。
英文摘要：
It was analyzed in this paper the geochemical characteristics and the origin of reservoir bitumen in Wangcun paleo-reservoir in the western Hunan Province, the middle Yangtze region. The reflectance of reservoir bitumen from the Lower Ordovieian to the Upper Cambrian Zhuitun Formation ranged from 3.09% to 4.08%. The bitumen was rich in H and C, poor in O, and was highly mature. From the Lower Ordovielan to the Upper Cambrian, geochemical eharacteristics of bitumen were similar, indicating the same source. Oil-source correlation studies with biomarker and carbon isotope showed that the bitumen in the Wangcun paleo-reservoir mainly originated from the Lower Cambrian source rocks.
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