流体在内管做行星运动的环空中流动的二次流  

The secondary flow in Newtonian fluid flow in annulus with the inner cylinder executing a planetary motion

作　　者：崔海清[1] 季海军[1] 蔡萌[1] 修德艳[1] 

机构地区：[1]大庆石油学院石油工程学院,黑龙江大庆163318

出　　处：《大庆石油学院学报》2005年第2期16-18,24,120-121,共6页Journal of Daqing Petroleum Institute

基　　金：国家自然科学基金项目(50374018);黑龙江省自然科学基金项目(A0201)

摘　　要：为分析钻井液在井筒中的携屑能力和防止钻井卡钻,建立了Newton流体在内管做行星运动的环空中流动的控制方程. 在解析求得该流动的流函数和轴向速度的分布函数的基础上,以水为例,绘制了该流动的流函数分布曲线,发现Newton流体在内管做行星运动的环空中的流动存在二次流,并指出环空二次流分布与内管自转和公转方向、转动速度大小以及环空偏心距有关.To analyze the carrying capability of drilling fluid in the wellbore and to prevent bit freezing on the basis of establishing the governing equations of the flow of Newtonian fluid in annulus with the inner cylinder executing a planetary motion and obtaining the distribution functions of stream function and axial velocity by resolution, the distribution curves of streamline of such flow are plotted. It is found that there is secondary flow that exists in the flow of Newtonian fluid in annulus with the inner cylinder executing a planetary motion. The distribution of secondary flow are related to these reasons, such as the directions and velocities of the rotation and revolution of the inner cylinder, eccentric distance of the annulus.

关 键 词：行星运动 二次流 环空 Newton流体 流函数 

分 类 号：TE21[石油与天然气工程—油气井工程]