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pumping system
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  pumping system
The repetition period will be 2 hours, and sampling will be by a winch-operated submersible pumping system which will continuously scan the radon-deficient layer.
      
An efficient pumping system made from association of cryo and turbo molecular pumps allows a background hydrogen pressure of ? 10-5 Torr during the growth.
      
The energy balance of the pumping system with the line is analyzed from the viewpoint of optimizing the pumping efficiency of metal-vapor lasers.
      
Results on this new fiber optic interface system are compared with those obtained previously with the traditional pumping system.
      
A traditional dissolution pumping system was recently replaced with a fiber optic interface between the spectrometer and the samples.
      
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Cw-1 type pressure stabilizer can control pressure of the controlled chamber between 1 to 1×10~(-)6 tort,may be continuous adjusted according to demand.When a pumping system has been determined,be equipped with the piezocrystal valve of the suitable flow and controllable gain,Through once adjusted the instrument suitable,external pressure changes within 3rd quantitative level,dynamic deviation controlled pressure may be protected less than±10%, stationary errors less than ±15%.When pumping speed...

Cw-1 type pressure stabilizer can control pressure of the controlled chamber between 1 to 1×10~(-)6 tort,may be continuous adjusted according to demand.When a pumping system has been determined,be equipped with the piezocrystal valve of the suitable flow and controllable gain,Through once adjusted the instrument suitable,external pressure changes within 3rd quantitative level,dynamic deviation controlled pressure may be protected less than±10%, stationary errors less than ±15%.When pumping speed of the system has been changed, it can still stabilize pressure of the controllable chamber.It may be measuring implement alone,measuring range is 1 to 1×10~(-6) tort and measuring error is less than ±30%.Instrument readings apply logistic scale and has two measuring ranges. This paper sets to describe briefly measuring principles,design procedures,main circuits, performance parameters and experimental results of the instrument.

CW-1型真空度稳定仪能把被控容器内的压强控制在1托~10~(-6)托之间,随需要连续可调。当抽空系统确定后,配以适当流量的压电晶体阀和控制增益,仪器经一次调好后,外界压强在三个数量级内变化,可保证被控压强的动态偏差值小于±10%,稳态偏差小于±5%。当抽空系统的抽速发生变化时,该仪器同样能使被控容器内的压强稳定。CW-1型真空度稳定仪可以单独作测量仪器用,其量限范围是1托~1×10~(-8)托,测量误差小于±30%。仪表读数用对数刻度,分两个量程,自动切换量程。本文简要地介绍了该仪器的工作原理、设计方法、主要电路、性能参数和实验结果。

This paper discusses the fuzzy synthetic diagnosis of working pump's condition in oil field distributed control system. It also analyses and recognize the condition of beam pumping system by means of the beam load displacement diagram.It can improve the accuracy of beampumping system's diagnosis.

提出用模糊综合诊断技术来识别和分析油井集散控制系统的泵工况。通过对泵载荷 -位移图 (泵功图 )进行分析判断 ,及时准确地了解有杆泵抽油系统的工作状态 ,提高抽油系统效率和泵工况的诊断精度

The electric analog method, general API RP 11L, and Rodstar method for designing and simulating the state of pumping unit system are analyzed and compared. Rodstar method can completely simulate pumping unit system operation in any actual case. According to the current operating parameters of a well, such as production state, IPR curve, Rodstar method can be used to analyze and determine whether the well is able to increase production. This method can also be used to analyze quantitatively the state of equipments...

The electric analog method, general API RP 11L, and Rodstar method for designing and simulating the state of pumping unit system are analyzed and compared. Rodstar method can completely simulate pumping unit system operation in any actual case. According to the current operating parameters of a well, such as production state, IPR curve, Rodstar method can be used to analyze and determine whether the well is able to increase production. This method can also be used to analyze quantitatively the state of equipments in the system, simulate fluid pound and pump off, and evaluate all the pumping system economically. Up to now, Rodstar method is the best tool for designing, simulating and analyzing the pumping system.

结合中原油田有杆泵采油生产的实际 ,对电模拟法、常规APIRP 11L方法及Rodstar方法等优化设计技术进行了分析。结果表明 ,Rodstar方法是一种能与实际生产情况完全拟合的系统设计和模拟技术。该方法可根据油井当前的运行参数、生产状况、井底流压变化幅度和流入动态曲线判定油井是否有提液潜力 ,能定量地分析拟合系统的设备工况 ,模拟液面撞击以及井被抽空时的状态 ,并能用于对整个有杆泵系统作定量的经济分析评价。模拟结果与实际生产吻合较好 ,是迄今为止对有杆抽油系统进行设计、模拟及分析的较为完善的技术。

 
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