幂律流体在内管做轴向往复运动的偏心环空中非定常流压力梯度的数值计算  

Numerical calculation of pressure gradient of the non-steady flow of power-law fluid in eccentric annulus with the inner cylinder axial reciprocating

作　　者：徐国民[1,2] 李楠[1] 崔海清[1] 

机构地区：[1]大庆石油学院提高油气采收率教育部重点实验室,黑龙江大庆163318 [2]大庆油田有限责任公司第四采油厂,黑龙江大庆163511

出　　处：《大庆石油学院学报》2009年第1期21-23,120,共3页Journal of Daqing Petroleum Institute

基　　金：国家自然科学基金资助项目(50674019);黑龙江省自然科学基金项目(A200501)

摘　　要：建立计算给定流量条件下幂律流体在内管做轴向往复运动的偏心环空中非定常流压力梯度的数学模型及其数值计算方法,对视为幂律流体的质量分数为0.05%的HPAM水溶液在内管做轴向往复运动的偏心环空中的非定常流进行实验研究.结果表明,数值计算得到的压力梯度与实验测得的压力梯度吻合较好,可认为所建立的数学模型和提出的数值计算方法正确.A mathematical model and a numerical method for calculation of the pressure gradient of unsteady flow of power-law fluid in eccentric annulus with the inner cylinder reciprocating axially under a given flow rate are established and presented respectively.An experimental research on the unsteady flow of HPAM aqueous solution,the mass fraction of which is 0.05%,in eccentric annulus with the inner cylinder reciprocating axially is cinducted.The result shows that the numerically calculated pressure gradients coincide well with those experimentally measured,so that the established mathematical model and the presented numerical method are testified to be correct.

关 键 词：幂律流体 偏心环空 轴向往复运动 非定常流 压力梯度 数值计算方法 

分 类 号：TE355.5[石油与天然气工程—油气田开发工程]