The result indicates that critical flow rate at the beginning of sand production declines with the rising of oil viscosity and pH value of fluid; when pH value exceeds 12, sand production increases remarkably.
研究结果表明,开始出砂的临界流速随原油粘度以及流体pH值的升高而下降;当pH值超过12以后,出砂量显著增大。
The results indicate that critical salt concentration and critical flow rate exit on the saltwater-freshwater interface.
试验结果表明,咸淡水界面上存在临界盐浓度值和临界流速值,当入流溶液浓度达到临界盐浓度和流速达到临界流速时,都会产生颗粒释放现象,导致砂柱的渗透率下降,水敏性发生。
The critical flow rate,VT could be estimated from the statistic curves.
从统计曲线上估算了临界流速的大小,当流速超过上述临界值时,管线服役寿命不会超过2年;临界流速从2004年时的4。
The relation of aeration rate with wastewater flow,designed bioreactor height,and flowing section area of main and sub chamber was analyzed theoretically,as well as the relation of the critical velocity of membrane fouling outside with the internal suction pressure and the width of main chamber.
从理论上分析了一体式膜生物反应器内曝气量与污水流量、反应器设计高度、主副腔过流面积的关系,膜外污染错流临界流速与抽吸压力及主腔宽度的关系,膜管内污染的临界速度与膜管径、膜壁吸力的关系,并得出采用化学方法消除膜污染的原理。
From the theoretical analysis,it can be seen that the relationship between the critical velocity of membrane outer surface and suction pressure, the width of cross-flow section and the aeration,the relationship between the critical velocity of membrane inner surface with or without gel layer and membrane pipe diameter,particle size,suction pressure,flow condition and at.
运用气、液、固三相流运动力学原理对一体式膜生物反应器运行过程分析,得出:①反应器膜外污染的临界流速与膜管抽吸压力及主腔宽度、曝气条件的关系;②膜管内膜壁存在或不存在凝胶层条件下,产生污染的临界速度与膜管径、污染物粒径、膜管内抽吸压力、膜管内流态及膜壁对污染物吸附力的关系;③消除膜污染运行控制措施及条件。
In view of the fact that raw coal in question is wide in size range, an equation for calculating the friction loss and critical velocity of this kind of coal slurry has been proposed by using dimensional and regression analysis methods based on over 5000 groups of data actually observed at five typical hydro mines.
考虑到原煤粒度分布较宽的特点，在５个典型水采矿井的５０００多组实测数据基础上，通过因次分析和回归方法，得出宽粒度分布煤浆管道输送参数摩擦阻力损失和临界流速的计算公式。
Influence of draft change of floating bridge with vehicles on tension of anchor-cable and critical velocity of flow;
浮桥通载时吃水变化对锚纲张力和浮桥临界流速的影响
If there is a critical velocity of flow which make the algae growth rapidly in Three Gorges Reservoir and tributaries and how to certain it are the urgent problems which should be solved.
库区内的优势藻类爆发生长是否存在临界流速,以及临界流速怎样测定,已经成为一个亟待解决的问题。
Effect Factors and Calculating Analysis of Critical Flow Velocity in Slurry Pipeline Transportation;
浆体管道输送临界流速的影响因素及计算分析
Based on the sedimentation theory and combined with the experimental analysis, the critical flow velocity of paste-like slurry in pipeline transportation is put forward.
根据固体物料的沉降理论,结合实验分析,提出了似膏体料浆在管路中的临界流速值;分析了浆体浓度及管道直径对似膏体料浆管输临界流速的影响规律。
The critical flow velocity of reservoir, sand produ.
具体储层的临界流速,油井出砂率,挡砂层的挡砂率是该技术的成功核心。
Study on the Critical Speed of Settling Slurry in Horizontal Pipeline;
沉降性浆体水平管道临界流速的研究
Stability and Critical Flow Velocity Analysis of Pipes Conveying Fluid with Intermediate Support;
具有中间支承输流管道稳定性和临界流速分析
The Research of the Critical Velocity of Sewage Flowing as Two-Phase Fluid in City Drainpipe;
城市排水管道内污水两相流临界流速研究
STABILITY AND CRITICAL FLOW VELOCITY ANALYSIS OF PIPES CONVEYING FLUID WITH INTERMEDIATE SUPPORT
具有中间支承输流管道稳定性与临界流速分析
Analysis of critical flow velocities of pipe conveying fluid under relaxation of boundary conditions
固定约束松动对输流管道稳定性和临界流速的影响
Stability and Critical Flow Velocity Analysis of a Clamped Pipe Conveying Fluid with Intermediate Support
一端固定具有中间支承输流管道临界流速及稳定性分析
Effect of Condition Parameters of Gas Drilling on Critical Flow Rate of Material Discharge
气体钻井分离设备液体排料临界流速的影响因素分析
Minimum fluidization velocity of bimodal polyethylene particles
双峰聚乙烯颗粒临界流化速度的研究
Mechanics model of critical annular velocity for cuttings transportation in deviated well
斜井岩屑运移临界环空流速力学模型
Correlation of critical mass velocity has been provided.
文中还给出了临界质量流速的试验关联式。
Rapid Determination of Nicotinamide by SFC;
超临界流体色谱快速测定烟酰胺的含量
Mass Flow Rate Profile and Metal Temperature Calculation in Water Wall of an Supercritical Circulating Fluidized Bed Boiler at Medium Mass Flow Rate
超临界循环流化床锅炉中等质量流速水冷壁流量分配及壁温计算
torsional critical speed
扭转临界速度 -电机的
critical cooling rate
马氏体临界冷却速度
critical rotational speed
离心机临界振动转速
The Research of Red Phosphorus Microencapsulation Flame Retardant Made by Using RESS Process;
超临界流体快速膨胀法制备红磷微胶囊阻燃剂的研究
Study on Optimal Velocity of Transcranial Doppler in Diagnosis of Middle Cerebral Artery Stenosis;
经颅多普勒超声评估大脑中动脉狭窄的最佳血流速度临界值
Paeonol Extraction from Cortex Moutan with Supercritical Fluid Extraction and High-Speed Counter-Current Chromatography
超临界CO_2萃取-高速逆流色谱分离纯化丹皮中丹皮酚