Secondly, in the horizontal gas Wells, wellbore annulus flow of gas - solid two-phase flow.
其次，在气体钻水平井中，井筒环空流动为气—固两相流。
The interface of core-annulus flow may be determined with the particle velocity vector fields.
采用速度矢量场的方法可以确定出环核结构分界。
The flow of coolant pump design flow is usually 2% -3%, within a set of magnetic separation between the rotor and the annulus region due to eddy current arising from high-calorie.
冷却液的流量通常为泵设计流量的2% - 3%，内磁转子与隔离套之间的环隙区域由于涡流而产生高热量。
The float shoe prevents reverse flow, or U-tubing, of cement slurry from the annulus into the casing.
浮鞋能够防止环空中的水泥浆向套管内流动这种回流或者U型管效应的发生。
While profile, the cross section was composed of annulus and rectangle, was extruded, the flow mechanism the plastic melt in the die was analyzed and the design method of die land was given.
本文分析了异型(圆环型与矩形的组合)材成型时塑料熔体在模头中的流动机理，并给出了模口成型长度的设计方法。
In this paper, the prediction of void fraction and pressure drop for upward gas-liquid annular flow in a vertical annulus is studied.
对垂直同心环形管内上升气液环状流的截面含气率及压降预测进行了研究。
Objective To probe the value of mitral annulus peak systolic flow velocity and systolic displacement in evaluating left ventricular systolic function of dilated cardiomyopathy patients.
目的探讨二尖瓣环收缩期峰值速度及收缩期位移评价扩张型心肌病患者左室收缩功能的价值。
The returned carrier fluid enters the internal flow path at the base of the tool before crossing over to the annulus above the packer assembly, isolating the annulus.
在转换至封隔器装置上面的环空以前，回流的携带液在工具底部进入内部流动通道，于是将环空隔离。
Flow can be seen in the tubing and in annulus A (Flow), distinguished by the white mist coloring, while annulus B is dark blue indicating no flow observed (No Flow).
由雾白色标注的油管和环空A处也能看到流动（有流动），而深蓝色的环空B处显示无流动（无流动）。
The under-balanced drilling technology is based on how to control the bottom negative pressure which is related to the pressure computation of multiphase flow in annulus .
井底负压值控制是欠平衡钻井技术的基础，而井底负压值的大小与环空多相流的有关压力计算有关。
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。
So, that researching on the flow of viscoelastic fluid in annulus with the inner cylinder executing a planetary motion has great significance in academic theory in the engineering.
因此研究粘弹性流体在内管做行星运动的环空中的流动具有学术理论意义和工程实际意义。
An optimal model is proposed for predicting the pressure drop of two-phase flow in gas well tubing and annulus, based on the measured data from the gas field of southwest Sichuan, China.
根据川西南威远气田大水量气井现场测试数据，建立了举升油管和油套环空气液两相流压降优化模型。将油管内的持液率模化为气相、液相无因次速度和液相无因次粘度的函数；
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。
The center line of the flow care is partial to the inner side of annulus.
流核中心线偏离环空中心线，且偏向环空内侧。
This paper reports the experiment of air-water two-phase flow in a small scale laboratory models and in a 1000 m-deep well with annulus configurations.
本文在1000米深全尺寸模拟实验井上进行了气液两相流实验研究。
The steady-state flows in drill pipe and in annulus are analyzed and the variations of pressure, gas void fraction, and multiphase-flow density along the well depth are simulated.
举例分析在环空和钻柱内的稳定流动过程中，随井深增加，压力、含气率、多相流体密度等的变化规律；
Objective to probe the value of mitral annulus peak systolic flow velocity and systolic displacement in evaluating left ventricular systolic function of dilated cardiomyopathy patients.
目的：通过超声心动图评价二尖瓣器形态改变与二尖瓣返流程度之间的关系及其临床意义。
Objective to probe the value of mitral annulus peak systolic flow velocity and systolic displacement in evaluating left ventricular systolic function of dilated cardiomyopathy patients.
目的：通过超声心动图评价二尖瓣器形态改变与二尖瓣返流程度之间的关系及其临床意义。
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