| 下部钻具组合横向振动固有频率的计算 |
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| 引用本文： | 师健,于永南.下部钻具组合横向振动固有频率的计算[J].石油机械,1996,24(11):17-20. |
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| 作者姓名： | 师健 于永南 |
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| 作者单位： | 石油大学 |
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| 摘 要： | 根据下部钻具组合的动力学方程，推导出下部钻具组合横向振动固有频率的计算公式，该公式可适应不同形式的下部钻具组合。指出下部钻具组合横向振动频率取决于下部钻具组合的结构型式，并且受钻压、转速和钻井液密度等操作参数的影响。
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| 关 键 词： | 井底钻具组合，钻杜振动，横向振动，频率，计算，边界条件 |
Calculation of natural frequency of lateral vibration of lower drillstem assembly |
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| Shuai Jian.Calculation of natural frequency of lateral vibration of lower drillstem assembly[J].China Petroleum Machinery,1996,24(11):17-20. |
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| Authors: | Shuai Jian |
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| Abstract: | The authors derive the formula for calculating the natural frequency of lateral vibration of the lower drillstem assembly in accordance with the dynamic eqUation of the lower drillstem assembly.This formula can be used for different drillstem assemblies. The authors point out that the lateral vibration frequency of the lower drillstem assembly depends on its combined characteristic and is under the influence of drilling parameters, such as the weight on bit, the speed of rotation and the drilling fluid density. |
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| Keywords: | drillstem assembly lateral vibration drill string vibration natural frequency |
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