| 地面驱动单螺杆泵排出口压力计算 |
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| 引用本文： | 张袁辉,蒋海,魏纳.地面驱动单螺杆泵排出口压力计算[J].海洋石油,2006,26(3):94-96. |
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| 作者姓名： | 张袁辉 蒋海 魏纳 |
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| 作者单位： | 西南石油大学,四川,成都,610500;西南石油大学,四川,成都,610500;西南石油大学,四川,成都,610500 |
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| 摘 要： | 在采用节点系统分析方法优化设计地面驱动单螺杆泵采油系统所建立的模型中,需要求得螺杆泵吸入口和排出口压力,以便根据压差重新选择螺杆泵和设计抽油杆柱。在计算排出口压力计算过程中,考虑了由于抽油杆柱旋转引起杆管环空气液两相流摩阻的影响。以GLB40-42型螺杆泵为例,理论和计算数据分析表明,转速和抽油杆直径对流体流动摩阻压降有显著影响,从而为进一步优化设计螺杆泵和抽油杆柱提供了有力依据。
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| 关 键 词： | 螺杆泵 气液两相流 排出口压力 |
| 文章编号： | 1008-2336（2006）03-0094-03 |
| 收稿时间： | 2005-12-02 |
| 修稿时间： | 2006-03-28 |
Discharge port pressure calculation of surface-driven single progressive cavity pump |
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| Zhang Yuanhui,Jiang Hai,Wei Na.Discharge port pressure calculation of surface-driven single progressive cavity pump[J].Offshore Oil,2006,26(3):94-96. |
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| Authors: | Zhang Yuanhui Jiang Hai Wei Na |
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| Affiliation: | Southwest Petroleum University, Chengdu 610500, China |
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| Abstract: | During the modelling for optimizing the production parameters of progressive cavity pump wells using the nodal system analysis, both discharge port pressure and suction pressure need to be calculated in order to further choose progressive cavity pump and design rods according to pressure difference. To calculate discharge port pressure, this article considers the influence on frictional pressure drop in the gas and liquid two-phase flow between rod and tubing owing to rotation of rods. To take GLB40-42 progressive cavity pump for an example, the analysis and calculation show that pumping rod diameter and rotational speed have great influences on the frictional pressure drop. Therefore this affords convincing foundation for further optimizing progressive cavity pump and rods. |
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| Keywords: | progressive cavity pump gas and liquid two-phase flow discharge port pressure |
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