| Calculation of the contribution of single-zone production by ultraviolet spectrum technique： A case study in well QHD32-6-3 field |
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| 引用本文： | 徐耀辉,陈丹,向廷生,文志刚,林青.Calculation of the contribution of single-zone production by ultraviolet spectrum technique： A case study in well QHD32-6-3 field[J].中国地球化学学报,2007,26(1):80-83. |
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| 作者姓名： | 徐耀辉 陈丹 向廷生 文志刚 林青 |
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| 作者单位： | Department of Geochemistry Yangtze University，Department of Geochemistry，Yangtze University，Department of Geochemistry，Yangtze University，Department of Geochemistry，Yangtze University，Research Centre of China Offshore Oil Company Ltd.，Jingzhou 434023，China Key Laboratory of Exploration Technologies for Oil and Gas Resources(Yangtze University)，Ministry of Education，Jingzhou 434023，China，Jingzhou 434023，China，Jingzhou 434023，China Key Laboratory of Exploration Technologies for Oil and Gas Resources(Yangtze University)，Ministry of Education，Jingzhou 434023，China，Jingzhou 434023，China Key Laboratory of Exploration Technologies for Oil and Gas Resources(Yangtze University)，Ministry of Education，Jingzhou 434023，China，Beijing 100027，China |
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| 基金项目： | Acknowledgements This study was financially supported by China 0ffshore 0il Company Ltd. （CN00C2C2003-012）. |
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| 摘 要： | Based on the established mathematic model and graphic interpretation, a new method, which is used to calculate the contribution of single-zone production in a commingled producing well by the ultraviolet spectrum technique, has been established. The standard plate was drawn using the extinction coefficient E of sample oils formulated artificially as y-axis and the wavelength as x-axis. The curve resulting from the UV analysis of sample oils in the commingled well was inserted into the standard plate and compared. The proportion of each single zone in the commingled producing well was identical with the proportion of the curve which is closest to the curve of sample oils formulated artificially. In the well QHD32-6-3 field, taking well A22 for example and using this method, the production contribution of a single zone was calculated. The result showed that the Nm4 zone is a major "contributor", the proportion of the Nm4 zone is 70%, and that of the Nm1 zone is 30%. The ultraviolet spectrum technique provided a new reservoir geochemical technique of monitoring production contribution, especially for biodegraded heavy oil, but it has some limitation, just depending on the GC fingerprint technique.
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| 关 键 词： | 紫外光谱技术 单区生产 计算 合采井 重油 |
| 收稿时间： | 2006-02-26 |
| 修稿时间： | 2006-07-31 |
Calculation of the contribution of single-zone production by ultraviolet spectrum technique: A case study in well QHD32-6-3 field |
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| Xu?Yaohui,Chen?Dan,Xiang?Tingsheng,Weng?Zhigang,Lin?Qing.Calculation of the contribution of single-zone production by ultraviolet spectrum technique: A case study in well QHD32-6-3 field[J].Chinese Journal of Geochemistry,2007,26(1):80-83. |
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| Authors: | Xu Yaohui Chen Dan Xiang Tingsheng Weng Zhigang Lin Qing |
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| Institution: | Yangtze University |
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| Abstract: | Based on the established mathematic model and graphic interpretation, a new method, which is used to calculate the contribution
of single-zone production in a commingled producing well by the ultraviolet spectrum technique, has been established. The
standard plate was drawn using the extinction coefficient E of sample oils formulated artificially as y-axis and the wavelength
as x-axis. The curve resulting from the UV analysis of sample oils in the commingled well was inserted into the standard plate
and compared. The proportion of each single zone in the commingled producing well was identical with the proportion of the
curve which is closest to the curve of sample oils formulated artificially. In the well QHD32-6-3 field, taking well A22 for
example and using this method, the production contribution of a single zone was calculated. The result showed that the Nm4
zone is a major “contributor”, the proportion of the Nm4 zone is 70%, and that of the Nm1 zone is 30%. The ultraviolet spectrum
technique provided a new reservoir geochemical technique of monitoring production contribution, especially for biodegraded
heavy oil, but it has some limitation, just depending on the GC fingerprint technique. |
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| Keywords: | ultraviolet spectrum technique commingled producing well production contribution well QHD32-6-3 field heavy oil reservoir |
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