| 反循环钻头内部流场流量分配关系的建立 |
| 投稿时间：2007-12-13 点此下载全文 |
| 引用本文：郝树青,殷琨,黄宏伟.反循环钻头内部流场流量分配关系的建立[J].钻探工程,2008,35(6):1-4,7.HAO Shu-qing,YIN Kun,HUANG Hong-wei. Calculation of Flow Distribution of Interior Fluid Field for the Reverse Circulation Bit[J]. Drilling Engineering, 2008,35(6):1-4,7. |
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| 基金项目:吉林省科技厅科技发展引导项目(编号：200405033) |
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| 中文摘要:通过简化空气反循环钻头体内部流场特性，运用空气动力学与流体力学知识对钻头体内流量分配关系首次进行计算，得到了相应的流量分配方程式。可以看到，所列方程组具有唯一的解析解，该研究将有效确定钻头结构相关参数，且为确定空气反循环钻头在钻井过程中钻头体内各点处流场特性提供帮助。 |
| 中文关键词:空气反循环钻头 流量分配方程 内部流场 |
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| Calculation of Flow Distribution of Interior Fluid Field for the Reverse Circulation Bit |
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| Abstract:Analysis on interior fluid field of the air-driving reverse circulation bit was based on the experiment for a long time. With the development of the computer, amount of the numerical simulation and emulation software brought more advantages than the experiments. However, due to the complexity of the interior fluid field, few people could make resolution calculation for it. In this article, by simplifying the interior fluid field character of air reverse circulation bit, the air dynamics and fluid mechanics was used to calculate the air distribution in the bit; and the flow distribution equations were obtained. It can be shown that the simultaneous equations have a unique resolution. The article will provide the help to effectively make certain that the parameters of the bit structure and deeply study the interior fluid field character of air reverse circulation bit. |
| keywords:air reverse circulation bit flow distribution equations, interior fluid field |
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