| 石油修井泥浆泵受压端面密封结构优化 |
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| 引用本文： | 郭知龙.石油修井泥浆泵受压端面密封结构优化[J].中州煤炭,2023,0(4):88-93. |
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| 作者姓名： | 郭知龙 |
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| 作者单位： | （中石化江汉石油工程有限公司 井下测试公司，湖北 武汉 430000） |
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| 摘 要： | 为确保石油修井泥浆泵受压端面密封良好，保障石油修井工程安全进行，依据石油修井泥浆泵工作原理，分析采用上游泵送机械密封方式的密封机理。在此基础上，以泄漏量最小与液膜轴向刚度最大为目标函数，构建泥浆泵受压端面的优化设计模型。通过设定闭合力并启用计算程序，优化由石油修井泥浆泵的结构参数与实际修井工程工况相关参数组成的设计变量，实现受压端面密封结构优化。实际应用表明，在设定闭合力条件下，液膜轴向刚度与槽深呈负相关，且槽深在26 μm以下时，泥浆泵的泄漏量相对较小，此时泥浆受压端面的密封性较好。
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| 关 键 词： | 石油修井 泥浆泵 受压端面 密封结构优化 螺旋槽 定闭合力 |
Optimization of sealing structure for pressurized end face of oil well servicing mud pump |
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| Guo Zhilong. Optimization of sealing structure for pressurized end face of oil well servicing mud pump[J].Zhongzhou Coal,2023,0(4):88-93. |
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| Authors: | Guo Zhilong |
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| Affiliation: | （Downhole Testing Company，Sinopec Jianghan Petroleum Engineering Co.，Ltd.，Wuhan 430000，China） |
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| Abstract: | In order to ensure the good sealing of the pressurized end face of the oil workover mud pump and ensure the safety of the oil workover project，this paper analyzed the sealing mechanism of the upstream pumping mechanical seal according to the working principle of the oil workover mud pump.On this basis，the optimal design model of the pressurized end face of the mud pump was constructed with the minimum leakage and the maximum axial stiffness of the liquid film as the objective function.By setting the closing force and using the calculation program，the design variables composed of the structural parameters of the oil workover mud pump and the relevant parameters of the actual workover engineering working conditions were optimized to realize the structural optimization of the pressurized end face seal.Through practical application analysis，it was obtained that under the condition of setting the closing force，the axial stiffness of liquid film was negatively correlated with the groove depth，and the groove depth was below 26 μm，the leakage of the mud pump was relatively small，and the sealing performance of the mud pressure end face was good. |
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| Keywords: | ,oil workover, mud pump, pressurized end face, optimization of sealing structure, spiral groove, fixed closing force |
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