| 气井油管动态摩阻系数的确定 |
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| 引用本文： | 齐占奎,张同义,张晓辉.气井油管动态摩阻系数的确定[J].天然气工业,2008,28(5):94-96. |
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| 作者姓名： | 齐占奎 张同义 张晓辉 |
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| 作者单位： | 中国石油大庆油田公司测试技术服务分公司 |
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| 摘 要： | 气井井下油管“动态摩阻系数”的提出改变了气井垂管（井下油管）流动计算的方式,弥补了以往气井井筒流动计算的瑕疵,提高了气井流压梯度计算的精度。在此基础上,首先介绍了计算所需的主要公式,其次针对气田常见的两种井下结构,推荐了两种计算气井井下油管动态摩阻系数的方法;最后用气井的实例进行了计算,并对输入参数、中间环节和计算结果作了进一步的说明。
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| 关 键 词： | 气井 油管 流动压力 动态 数学模型 |
| 修稿时间： | 2007年9月3日 |
DETERMINATION OF DYNAMIC FRICTION COEFFICIENT IN GAS WELL TUBING |
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| QI Zhan-kui,ZHANG Tong-yi,ZHANG Xiao-hui.DETERMINATION OF DYNAMIC FRICTION COEFFICIENT IN GAS WELL TUBING[J].Natural Gas Industry,2008,28(5):94-96. |
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| Authors: | QI Zhan-kui ZHANG Tong-yi ZHANG Xiao-hui |
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| Affiliation: | Logging and Testing Service Company of PetroChina Daqing Oilfield Company |
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| Abstract: | The proposed "dynamic friction coefficient" for gas well underground tubing has changed the flow calculation way for the gas wells manubrium (down hole tubing), made up flaws of well bore flow calculation and improved the calculation accuracy of gas well flowing pressure gradient. On this basis, the calculation equations have been introduced at first; then, in view of two commonly existed underground structures, two methods for calculating the dynamic friction coefficient of gas well underground tubing are recommended; at last, by using examples of gas wells, the dynamic friction coefficient is calculated and input parameters, intermediate links and computational solutions are further illustrated. |
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