| 羌塘盆地扎仁地区中上侏罗统烃源岩生物标志物特征 |
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| 引用本文： | 陈文彬,廖忠礼,刘建清,付修根,熊兴国,贺永忠.羌塘盆地扎仁地区中上侏罗统烃源岩生物标志物特征[J].油气地质与采收率,2008,15(5):17-19. |
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| 作者姓名： | 陈文彬 廖忠礼 刘建清 付修根 熊兴国 贺永忠 |
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| 作者单位： | 1. 成都地质矿产研究所,四川,成都,610081
2. 贵州省地质调查研究院,贵州,贵阳,550005 |
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| 摘 要： | 应用生物标志物分析技术，结合其他地球化学资料，对羌塘盆地扎仁地区烃源岩的有机质生源构成、沉积环境和成熟度进行了讨论。研究区饱和烃碳数相对较高，表明遭受了一定程度的微生物降解；Pr／Ph值小于1，且检测出一定量的伽马蜡烷，表明烃源岩的沉积环境为含盐度低的偏还原环境；规则甾烷以C27略占优势，三环萜烷／五环三萜烷值为0．23～0．77，表明烃源岩有机质生物来源主要为低等水生生物；甾烷成熟度参数C29ααα20S／ααα（20S＋20R）值为0．41～0．50，C29αββ／（ααα＋αββ）值为0．58-0．63，萜烷成熟度参数C32 22S／（22S＋22R）值约为0．6．Ts／（Tm＋Ts）平均值约为0．52，表明有机质演化处于高成熟阶段。
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| 关 键 词： | 烃源岩 地球化学 生物标志物 中上侏罗统 扎仁地区 羌塘盆地 |
| 修稿时间： | 2008/8/14 0:00:00 |
The biomarkers characteristics of hydrocarbon source rocks in middle and upper Jurassic in Zharen area,Qiangtang Basin |
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| Chen Wenbin,Liao Zhongli,Liu Jianqing et al.Sedimentation , Energy Research.The biomarkers characteristics of hydrocarbon source rocks in middle and upper Jurassic in Zharen area,Qiangtang Basin[J].Petroleum Geology and Recovery Efficiency,2008,15(5):17-19. |
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| Authors: | Chen Wenbin Liao Zhongli Liu Jianqing Sedimentation Energy Research |
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| Affiliation: | Chen Wenbin,Liao Zhongli,Liu Jianqing et al.Sedimentation , Energy Research Department,Chengdu Institute of Geology , Mineral Resources,Chengdu City,Sichuan Province,610081,China |
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| Abstract: | The biologic-source constitution,sedimentary environment and maturity of organic matter in the middle-upper Jurassic carbonate rocks in Zharen area,Qiangtang Basin were researched by means of biomarker analysis technology combined with other geochemi-cal data.Relatively high carbon number of the saturated hydrocarbon indicates microbial degradation in some extent.The valve of Pr/Ph less than 1 and the present of certain gammacerane indicates that the hydrocarbon source rock was developed in partial reductio... |
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| Keywords: | source rocks geochemistry biomakers middle and upper Jurassic Zaren area Qiangtang Basin |
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