1) full voltage starting
抗压启动
1.
According to characteristics of high pressure ammonia pump,was mechanical torque converters were superseded by transducers to realize full voltage starting and electric-dazzling preventins,and save electricity was above 20%.
针对高压氨泵的工艺特点,用变频器取代了机械变矩器调速,实现了抗压启动和防晃电功能,并且节能20%以上。
2) threshold pressure
启动压力
1.
Experimental study on threshold pressure of extra low permeability reservoir during gas injection;
特低渗透油藏气驱启动压力实验研究
2.
A research on the seepage flow pattern of low-permeability reservoirs under consideration of threshold pressure and pressure-sensitive effect:a case of Member L1 in Weixi'nan depression
综合考虑启动压力和压敏效应的低渗透油藏渗流规律研究——以涠西南凹陷L_1段为例
3.
The viewpoint of there isn’t threshold pressure is doubted
质疑不存在启动压力之观点
3) start-up pressure
启动压力
1.
which is contradictory to the fact that the JBN method presently used for relative permeability curve correction is based on the Darcy's Law without consideration of start-up pressure gradient effect.
低渗透油气层由于存在启动压力梯度,渗流规律不符合达西定律,而现今实验室处理相对渗透率曲线的JBN方法是建立在达西定律基础上的,没有考虑启动压力梯度的影响。
2.
Four classification evaluation parameters for extra-low permeability reservoir are proposed,including effective porosity,mainstream throat radius,movable fluid saturation and start-up pressure gradient.
针对超低渗储层分类评价中存在的不足,引入近几年在储层研究方面发展起来的新技术,提出了有用孔隙度、主流喉道半径、可动流体饱和度、启动压力梯度4个超低渗储层分类评价参数,建立了"四元分类标准"。
3.
We have researched the relation between reservoir permeability and pore structure,and its decisive role in reservoir recovery of Wendong oilfield,and have researched the effect of start-up pressure on development.
研究了文东油田储层渗透率与孔隙结构的关系及其对油田采收率的决定作用,以及启动压力对开发状况的影响;分析了储层裂缝的存在特征、成因以及对开发效果的影响,并提出了油田开发调整应采取的对策。
4) starting pressure gradient
启动压力
1.
The study and analysis of starting pressure gradient in low permeability gas reservoirs;
低渗气藏启动压力梯度研究与分析
2.
The relationships are derived between the effective permeability and the effective viscosity of power law fluid versus the feature parameters of the fluids and formation media and between the starting pressure gradient of Bingham fluid and fluid feature parameters versus the feature parameters of the fluids and formation media.
通过不均匀的毛细管组模型，建立了幂律型流体和宾厄姆（Ｂｉｎｇｈａｍ）流体渗流的广义达西定律和一般的渗流方程，导出幂律型流体渗流的有效渗透率和有效粘度以及宾厄姆流体启动压力梯度与流体特性参数和地层介质特性参数之间的关
3.
Through numerical simulation methods, influence of starting pressure gradient on production indexes of fractured producers in diamond shaped well pattern was studied.
应用数值模拟的方法研究了启动压力梯度对菱形井网压裂井日产油量、累积产油量、含水率、采出程度、地层压力等参数的影响。
5) triggering pressure differential
启动压差
1.
The generalization mechanism and variation law of triggering pressure differential in a lowpermeability reservoir, as well as the generalization condition and percolation law of nonDarcy flow, was demonstrated.
研究了低渗透油藏启动压差的形成机理及变化规律、非达西流动的产生条件及其渗流规律，并建立起３类流体非线性渗流时的流动方程。
6) reduced voltage starting
降压启动
1.
The controller designed in this article is used for reduced voltage starting of motors.
本文设计的控制器用于电动机降压启动,以单片机控制代替原来的机电控制,并且增加了保护功能、自动功能和通信功能,使降压启动电路更简单,电动机的远动更方便、安装调试更容易、成本更低,因而必将得到广泛的应用。
补充资料：焦炭抗压强度
焦炭抗压强度
compressive strength of coke
Jiaotan kangya qiangdu焦炭抗压强度(eompressive Strength。f coke) 焦炭在压力作用下断裂时，其单位面积上承受的力，即焦炭断裂时所能承受的最大压应力。它是反映焦炭力学性质的一项指标。试验是在恒定的应变速度下，对圆柱体焦样轴向加载，直至焦样断裂。其抗压强度叮一磊，Pa。式中尸为焦样断裂时所加的载荷，N;R为焦样截面半径，m。焦炭在轴向压力下的应变曲线大致分成四个区域。(见图)朋为初始区，焦炭在较低的轴向压力下，由于开气孔的闭合而发生较明显的应变，这是多孔材料的应变特征;贸为弹性区，应力- 训帕叮一__ 了:一。、一」/爪、_、一}川才z刀℃’} L一_匕一___~‘J___~___~~--一~~~砂 二、、.，.):‘上51}‘〕 位移，口们 室温下焦炭轴向压缩时的玉力一位移图应变近似于线性关系，c点为轴向压力达到的最大值;cD为脆性区，由于裂纹扩展，试样因受压而积蓄的能量被释放出来，但未达到破碎;DE为临界区，这时轴向力稍有增加，试样就产生很大的应变，并导致裂纹扩展。抗压强度试验是在材料试验机上进行的。一般焦炭试样制成直径约巧~、长约23~的圆柱体，型焦则用整块作试样。每种焦炭需取20个以上的试样作试验，应变速度为1.5X10一、”。室温下焦炭抗压强度大约为12一30MPa，在1 500℃高温下测量时，抗压强度值将增大20%左右。抗压强度的高低与气孔率大小有关。焦炭抗压强度比燕炭杭肚强度大一个数量级，它比焦炭在高炉内实际承受的压应力(约为0.ZMpa)大两个数量级，即焦炭的抗压强度远大于焦炭在高炉内承受的炉料压力，故压应力不是焦炭断裂的主要原因，对评定焦炭强度的意义不大。 (江中纸)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条