| 滞留聚合物对示踪剂扩散特征影响实验研究 |
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| 引用本文： | 李金宜,姜汉桥,李俊键,罗宪波.滞留聚合物对示踪剂扩散特征影响实验研究[J].油气地质与采收率,2011,18(4). |
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| 作者姓名： | 李金宜 姜汉桥 李俊键 罗宪波 |
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| 作者单位： | 1. 中海石油(中国)有限公司天津分公司渤海油田勘探开发研究院,天津,300452
2. 中国石油大学(北京)石油工程教育部重点实验室,北京,102249 |
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| 摘 要： | 聚合物驱后,地层内滞留的聚合物会对示踪剂扩散产生影响,形成不同于水驱阶段的渗流机理和扩散特征.设计仿真孔隙模型进行微观实验,对聚合物驱后示踪剂扩散进行了微观渗流机理研究,确定聚合物驱后滞留聚合物对示踪剂扩散的影响因素包括示踪剂不可及孔隙体积、示踪剂滞留和滞留聚合物质量浓度差异.设计填砂管驱替实验,定量分析了不同渗透率和不同质量浓度的聚合物段塞条件下,聚合物驱后滞留聚合物对示踪剂的运移和产出特征曲线的影响,印证了微观实验结果.驱替实验结果表明,由于滞留聚合物影响而导致示踪剂不可及孔隙体积倍数为0.05～0.2;滞留聚合物会对示踪剂产生吸附滞留影响;示踪剂在滞留聚合物质量浓度差异中出现差异化扩散.
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| 关 键 词： | 聚合物驱后 滞留聚合物 示踪剂 渗流规律 不可及孔隙体积 微观实验 扩散 |
Study on tracer dispersion influenced by polymer retention |
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| Li Jinyi,Bohai Oilfield E&P Research Institue of Tianjin,CNOOC China Ltd.,Tianjin City,China Jiang Hanqiao,Li Junjian et al..Study on tracer dispersion influenced by polymer retention[J].Petroleum Geology and Recovery Efficiency,2011,18(4). |
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| Authors: | Li Jinyi Bohai Oilfield E&P Research Institue of Tianjin CNOOC China Ltd Tianjin City China Jiang Hanqiao Li Junjian |
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| Affiliation: | Li Jinyi,Bohai Oilfield E&P Research Institue of Tianjin,CNOOC China Ltd.,Tianjin City,300452,China Jiang Hanqiao,Li Junjian et al. |
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| Abstract: | Tracer dispersion influenced by polymer of retention in the formation after polymer flooding would be different on mechanism and diffusion feature from that in water flooding.This paper does research on microscope fluid mechanism by study of realistic pore model experiment.The realistic pore model experiment has proved that polymer retention has three main factors influencing tracer dispersion:inaccessible pore of tracer dispersion,tracer retention and coefficient of diffusion varied by polymer concentratio... |
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| Keywords: | post polymer flooding polymer retention tracer fluid dynamics inaccessible pore microscopic experiment dispension |
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