| 喷嘴孔径对PDC钻头井底流场影响的数值分析 |
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| 引用本文： | 杨丽,陈康民.喷嘴孔径对PDC钻头井底流场影响的数值分析[J].石油天然气学报,2004,26(3):134-135. |
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| 作者姓名： | 杨丽 陈康民 |
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| 作者单位： | 上海理工大学动力学院,上海,200093 |
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| 基金项目： | 上海市经委高新技术项目(2870)，上海市科委高新技术项目(032912022)。 |
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| 摘 要： | 根据实际PDC钻头结构．建立了2个不同孔弪四喷嘴PDC钻头模型，研究了喷嘴孔径对井底漫流特性的影响及漫流层高度和最大漫流速度。分析了流场的总体特点．得出了喷嘴孔径对PDC钻头井底流场的各种影响。
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| 关 键 词： | PDC钻头 喷嘴 井底流场 数值分析 |
| 文章编号： | 1000-9752(2004)03-0134-02 |
Numerical Analysis of Influence of Nozzle Diameter on Downhole Flow Field of PDC Bits |
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| YANG Li,CHEN Kang-min.Numerical Analysis of Influence of Nozzle Diameter on Downhole Flow Field of PDC Bits[J].Journal of Oil and Gas Technology,2004,26(3):134-135. |
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| Authors: | YANG Li CHEN Kang-min |
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| Abstract: | A model is established for PDC bits with 4 nozzles of different diameters based on PDC bit structures. The effect of nozzle diameter on the properties of downhole cross flow, the cross flow layer and maximum cross flow velocity are studied. The overall characteristics of flow field are analyzed and various influences of nozzle diameter on the downhole flow field of PDC bits are obtained. |
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| Keywords: | PDC bit nozzle downhole flow field numerical analysis |
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