装置长期停止使用时，应关闭油口与压力油管之间的截止阀，保持蓄能器的油压在充气压力以上。
When accumulator is not used for a long period, the check-valve shall be closed to ensure that the oil pressure is above that charging pressure.
主管路：包括吸油管路，压油管路和回油管路，用来实现压力能的传递。
Supervisor Road: including oil suction line, pressure oil pipeline and oil return line, used to achieve the transfer of pressure energy.
本文介绍一种利用柴油机高压泵喷油管壁上的压力波脉冲信号，来测量柴油机转速的新方法。
The paper introduces a new rotating speed measuring method for diesel engine utilizing pressure pulse signal on the tube wall of high pressure fuel injection system of diesel engine.
本文为了能够更好的节约成本保证安全生产，在考虑井下油管压力影响的条件下，对节流油嘴进行优化设计。
This article is devoted to ensure the safe production based on considering the effects of downhole tubing pressure conditions to optimize the design of the chokes.
经久耐用压力下的油管。
针对柴油机高压油管内燃油压力波动特性，设计和选择了故障诊断系统的硬件和软件。
According to the character of pressure wave in diesel high pressure line, the hardware and software of fault diagnosis system was designed and choose.
选用恰当的清洗剂，采用合理的化学清洗工艺能有效地去除输油管内的沉积物，恢复输油压力。
The deposit could be effectively removed and oil pressure was renewed by way of choosing effectual cleaner and chemical cleaning technology.
深井用伴生气经压缩机增压后进行气举采油，将碰到起下油管作业费用大、地面注气压力有限、气源将可能不足以满足各井需求等问题。
Some problems such as high cost of tripping the tubing string, limited injection pressure and insufficient gas supply will be faced when gas lift is used as an artificial lift method for deep Wells.
并利用第四强度理论，对连续油管在轴向拉力与内外压力的作用下的综合应力进行了校核。
And use the fourth strength theory, the axial tension in the coiled tubing under the influence of internal and external pressure from a comprehensive stress of checking.
在对油管合理地划分计算单元后，可求解得到油管各个结点在不同时刻的燃油音速、密度、压力和流速等特征参数值。
After partition the pipe into calculation cells, the sound velocity, fuel density, fuel pressure and flowing velocity at every calculation crunode in different time are gained.
油管在工作压力下避免弯折。
设计了一套基于动态压力变送器的输油管道泄漏检测与定位系统，阐述了其系统组成和检测原理。
A leak detection and positioning system of oil pipeline based on dynamic pressure transmitter is designed, and the system composition and testing principle are specified.
针对飞机地面压力加油管路系统通向油箱的管路压力脉动现象，本文提出一种新的实时主动流量控制方法。
Aimed at the pressure transient of the aircraft refueling pipeline, a new real time flow control method based on the traditional passive accumulator is presented in this paper.
指出在管输油品、线路走向及输量等已定时，影响等温输油管道总费用的主要因素有管材、管径及操作压力。
Once the throughput, pipeline route and oil kinds are defined, the main factors, which influence the total cost of isothermal oil pipeline, are material, diameter and design pressure.
当压力脉动发生在液压泵的吸油管路或液压系统的回油管路等低压管路中时，会引起气泡和气穴的产生及破灭。
When the pressure transients occur in low pressure pipelines such as the suction lines of pumps or the return lines of a hydraulic system, gas bubbles and cavitation will occur inside the fluid.
给出了输油管道压力信号的卡尔曼滤波模型，并分析了模型参数对滤波效果的影响。
Kalman filter model of oil pipeline pressure wave is given out and the influences of model parameters on filtering effect are analysed.
输油管道的大落差段有特殊的水力状态，设置压力调节站是适应这种水力状态而广泛采用的技术。
The hydraulic state in critical downhill section of long pipeline is unusual, and installing pressure regulation station is a widely used method for meeting its special requirement.
研制的智能电子压力开关已在输油管道上应用。
The smart electron pressure switch has been applied in pipeline.
套管损坏会导致压力完整性破坏、生产油管磨损，甚至无法下入修井工具。
Casing impairment leads to loss of pressure integrity, pinching of production tubing, even an inability to lower workover tools.
试验结果表明：在供油提前角、转速和负荷相同的情况下，燃用二甲醚时油管泵端和嘴端压力的上升和下降速度、压力峰值都比燃用柴油时低；
The results show that at the same fuel delivery advance angle, engine speed and load, the line peak pressure and rate of pressure increment and decrement of DME are lower than that of diesel fuel.
通过相应的边界条件，对半无限长井筒的数学模型进行解析求解，得到水平段的压力分布，并对连续油管车所测的实际数据进行了分析。
With corresponding boundary conditions, the mathematical model for semi-infinite wellbore is analyzed and solved to get the pressure distribution in horizontal interval.
考虑液动压力对油管柱纵向振动的影响，建立了油管柱纵向振动微分方程，并给出了这种情况下油管柱纵向振动的频率方程。
In consideration of the effect of liquid dynamic pressure on the tubing string vertical vibration, the differential equation and frequency equation for describing the vibration are set up.
针对油管柱—封隔器系统的活塞、螺弯、温度、鼓胀等四种基本效应进行分析，同时根据现场工艺特点进行了温度场和压力场的研究。
It manly analyzes four kinds transmutations of piston effect, temperature effect, expansion effect, helical buckling effect in the system of tubing and packer.
气井投产前后温度和压力变化会引起油管应力及轴向变形的改变。
The change of temperature after or before gas well put into production will result in the variation of tubing string stress and axial deformation.
在一定的雾化介质压力下，运行油流量受油、气压差及喷嘴结构影响，在某种情况下会发生喷嘴运行油流量为零，雾化气倒流入油管的临界工况。
Under certain pressure of atomizing medium , the operating flow rate is affected by the difference of pressure between oil and pressed air as well as the structure of nozzles.
随着作业井次、作业复杂性、油管尺寸和油管承受压力的增加，连续油管在含酸环境中的使用越来越多。
The use of CT in sour service has increased by job number, job complexity, pipe size, and the stresses to which the pipe is subjected.
一般地，经油管柱施加液压压力而不是由操纵油管柱施加机械力使封隔器坐封。
A hydraulic packer typically is set using hydraulic pressure applied through the tubing string rather than mechanical force applied by manipulating the tubing string.
通过油管或下入管柱施加液压力来启动井下工具的一种坐封或操纵的方法。
A setting or operating method that USES hydraulic force applied through the tubing or running string to activate a downhole tool.
研究了连续油管柱内流体的液动压力对连续油管柱纵向振动的影响问题。
This paper studies the affection that the flowing force of fluid inside coiled tubing is correlated to longitudinal vibration of coiled tubing.
研究了连续油管的工作力学特性，建立了连续油管弯曲、抗内压强度和外部挤毁压力、直径增长、纵向伸长及卡点位置分析计算模型。
Mechanical characteristic of ct is studied. The model of bending, internal pressure strength and external collapse strength, diametric growth and stuck-point of ct is established.
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