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| 变系数二阶流体在偏心环空中非定常流压力梯度的数值计算 | |
| 引用本文： | 崔海清,李楠,杨立国,宋兴良.变系数二阶流体在偏心环空中非定常流压力梯度的数值计算[J].中国石油大学学报(自然科学版),2011,35(1):61-64. |
| 作者姓名： | 崔海清 李楠 杨立国 宋兴良 |
| 作者单位： | 1. 东北石油大学,提高油气采收率教育部重点实验室,黑龙江,大庆,163318 2. 中石油大庆油田公司,采油工程研究院,黑龙江,大庆,163453 3. 东北石油大学,提高油气采收率教育部重点实验室,黑龙江,大庆,163318;中石油,吉林油田公司,吉林,松原,138000 |
| 基金项目： | 国家自然科学基金项目(50674019); 黑龙江省自然科学基金项目(A200501) |
| 摘 要： | 建立给定流量条件下变系数二阶流体在内管做轴向往复运动的偏心环空中非定常流的瞬时压力梯度方程,给出这种流动的时均压力梯度公式及相应的数值计算方法;以HPAM水溶液为例,对其在内管做轴向往复运动的偏心环空中非定常流的时均压力梯度进行数值计算和室内试验。结果表明:环空偏心度对时均压力梯度有明显影响,内管冲程和冲次对时均压力梯度的影响不明显;试验验证了时均压力梯度公式及相应数值计算方法的正确性。 |
| 关 键 词： | 变系数二阶流体 偏心环空 轴向往复运动 非定常流 压力梯度 |
Numerical calculation of pressure gradient of unsteady flow of the second-order fluid with variable coefficients in eccentric annulus |
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| CUI Hai-qing,LI Nan,YANG Li-guo,SONG Xing-liang.Numerical calculation of pressure gradient of unsteady flow of the second-order fluid with variable coefficients in eccentric annulus[J].Journal of China University of Petroleum,2011,35(1):61-64. | |
| Authors: | CUI Hai-qing LI Nan YANG Li-guo SONG Xing-liang |
| Institution: | CUI Hai-qing1,LI Nan2,YANG Li-guo1,3,SONG Xing-liang1(1.Enhanced Oil and Gas Recovery Key Laboratory of Ministry of Education,Northeast Petroleum University,Daqing 163318,China,2.Production Engineering & Research Institute,Daqing Oilfield Company,PetroChina,Daqing 163453,3.Jilin Oilfield Company,Songyuan 138000,China) |
| Abstract: | An equation of instantaneous pressure gradient for the unsteady flow of the second-order fluid with variable coefficients in eccentric annulus with the inner cylinder reciprocating axially under the precondition of a known flow rate was established.And a formula of time average pressure gradient and correspondent numerical method were presented.Using the HPAM aqueous solution,the time average pressure gradients of the unsteady flow of the fluid in eccentric annulus with the inner cylinder reciprocating axia... |
| Keywords: | second-order fluid with variable coefficients eccentric annulus reciprocating axially unsteady flow pressure gradient |
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