In this paper the spiral velocity of eccentric annulus with inner pipe turned is analysed and computed.
本文分析计算了石油钻井工程偏心环空中内管转动的螺旋流动。
In this paper, on the basis of rheological theory, we have discussed the effect of the slurry properties on the mud displacement efficiency in eccentric annulus.
本文利用流变学原理，讨论了流体的流变性能对偏心环空注水泥顶替效率的影响。
The analytic solution for flowing field and the numerical solution for power law flow field of Newtonian and Bingham fluids flowing in eccentric annulus ale proposed.
提出了牛顿流体与宾汉流体在该偏心环空中流动的流场解析解及幂律流体流场的数值解。
Using the differential motion equation in fluid mechanics, this paper developed the flow models of the laminar flow of Bingham's fluid in an inclined eccentric annulus.
本文应用流体力学中的运动微分方程，建立了宾汉流体在倾斜偏心环空中的层流流动模型。
In this paper, the effect of configuration size on the liquid nitrogen thermosyphon boiling heat transfer behavior in extreme eccentric annulus is studied for the first time.
在国内外首次研究了结构尺寸对极限偏心环缝中液氮的沸腾换热特性的影响。
Ortherwise, the eccentric gas anchor, gas lift valve and surface check valve are installed to automatically unload the gas from the deeper layer and annulus between the tubing and the casing.
大气量时应用偏心气锚安装气举阀与地面单流阀两步卸气，实现了下部产层和油套环空自动卸气。
Ortherwise, the eccentric gas anchor, gas lift valve and surface check valve are installed to automatically unload the gas from the deeper layer and annulus between the tubing and the casing.
大气量时应用偏心气锚安装气举阀与地面单流阀两步卸气，实现了下部产层和油套环空自动卸气。
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