| 准噶尔盆地西北缘玛北油田油源分析 |
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| 引用本文： | 王绪龙,康素芳.准噶尔盆地西北缘玛北油田油源分析[J].西南石油大学学报（自然科学版）,2001,23(6):6. |
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| 作者姓名： | 王绪龙 康素芳 |
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| 作者单位： | (中国石油新疆油田公司勘探开发研究院,新疆 克拉玛依 834000) |
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| 摘 要： | 准噶尔盆地玛北油田原油三环二萜烷C20、C21和C23的分布型式(上升型、山峰型、下降型和山谷型)与Pr/Ph、碳同位素、Ts/Tm、成熟度等存在良好关系。不同分布型式的原油在空间上具有上升型分布于油藏高部位,下降型分布于低部位的特点。表征三环二萜烷分布型式的C20/C23与试油获得的原油产量存在正相关,与原油密度存在负相关。综合分析得出,油气成藏顺序是上升型原油在先,下降型原油在后,山谷型原油是上升型和下降型原油混合的结果,上升型分布原油主要是下二叠统风城组烃源岩的贡献、下降型分布原油主要是下二叠统佳木河组烃源岩的贡献。
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| 关 键 词： | 准噶尔盆地 玛北油田 油源 三环二萜烷 |
| 收稿时间： | 2001-04-02 |
ON THE OIL SOURCE OF THE MABEI OILFIELD,NORTHWEST JUNGGAR BASIN |
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| WANG Xu-long KANG Su-fang..ON THE OIL SOURCE OF THE MABEI OILFIELD,NORTHWEST JUNGGAR BASIN[J].Journal of Southwest Petroleum University(Seience & Technology Edition),2001,23(6):6. |
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| Authors: | WANG Xu-long KANG Su-fang |
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| Institution: | (Exploration and Development Institute, Xinjiang Oilfield Company, Karamay Xinjiang 834000, China) |
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| Abstract: | The distribution patterns (ascending, descending, peaked, and valley-like) of C20, C21and C23tricyclic diterpanes in oils from Mabei oilfield of Junggar basin are well related with other geochemical indices such as Pr/Ph, carbon isotope, Ts/Tm and thermal maturity. Mabei oil reservoirs are characterized by the spatial occurrence of ascending-patterned oils above descending patterned oils. Tricyclic diterpanes C20/C23which represents distribution patterns increase with testing oil productions and decrease with oil densities. The authors believe that ascending-patterned oils generated from Permian Fengcheng Formation was entrapped earlier than descending-patterned oils from Permian Jiamuhe Formation, and valley-patterned oils represent a mixture of the ascending-and descending-patterned oils. |
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| Keywords: | Junggar basin Mabei oilfield oil source tricyclic diterpanes distribution pattern |
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