| High molecular weight (C_(35)~+) n-alkanes of high-waxy condensate and its source kitchen orientation in the Qianmiqiao burial-hill zone, Bohai Gulf Basin |
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| 作者姓名： | WANG Tieguan |
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| 作者单位： | WANG Tieguan (WANG T.-G.)1，ZHU Dan1，LU Hong2，ZHANG Zhihuan1，SU Junqing3 & LIAO Qianjin3 1. Key Laboratory of Petroleum Accumulation Mechanism of the Ministry of Education，University of Petroleum，Beijing 102249，China; 2. Guangzhou Institute of Geochemistry，Chinese Academy of Sciences，Guangzhou 510640，China; 3. Geological Research Institute，Dagang Oilfield (Group) Co. Ltd.，Tianjin 300280，China |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研项目 |
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| 摘 要： | Copyright by Science in China Press 2004 High-waxy condensate is a kind of special hy-drocarbon resources, i.e., the high molecular weight (HMW) alkanes, which usually appear in a solid wax fraction under normal temperature and pressure, but are dissolved by hydrocarbon gas as a high-waxy condensate of single gaseous phase under subsurface high temperature and pressure. Nevertheless, once produced in an oil-gas well, the subsurface condensate flows into the well-bottom, and then immediately …
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High molecular weight (C+35) n-alkanes of high-waxy condensate and its source kitchen orientation in the Qianmiqiao burial-hill zone, Bohai Gulf Basin |
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| WANG Tieguan.High molecular weight (C_(35)~+) n-alkanes of high-waxy condensate and its source kitchen orientation in the Qianmiqiao burial-hill zone, Bohai Gulf Basin[J].Science in China(Earth Sciences),2004,47(3). |
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| Authors: | WANG Tieguan ZHU Dan LU Hong ZHANG Zhihuan SU Junqing LIAO Qianjin |
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| Abstract: | The high-waxy condensate in the Qianmiqiao Ordovician burial-hill zone, Bohai Gulf Basin, North China has been investigated by way of high temperature gas chromatography. As high-mature oil, its high molecular weight wax fraction is mainly composed of C35-C69 n-alkanes with CPI37-55 values of 0.94-1.10. On conditions that core-drilling of source rocks was limited and the exact location of source kitchen is still uncertain in the region, it is inferred that the orientation of main source kitchen for the condensate should be on the east of the burial-hill zone, i.e. from the direction of Qikou Sag, according to oil-oil correlation between the condensate and surrounding high-waxy oils as well as lateral distribution of the wax content of crude oils. In addition, it is also further confirmed that the oil filling direction for this condensate reservoir is from NE to SW, i.e. from wells BS-4, through BS-7, to BS-8 based on the analyses of 9 maturity and 3 pyrrolic N-compound parameters. |
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| Keywords: | Qianmiqiao burial-hill high temperature gas chromatography (HTGC) high-waxy condensate high molecular weight (HMW) n-alkanes |
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