石油工程专业英语下重点翻译完整版.docVIP

All petroleum reservoirs experience pressure declines, and most wells require artificial lift at some point, most commonly where reservoir pressure is insufficient for natural flow. Artificial lift systems may also be used to enhance production from flowing wells with a reservoir pressure that is insufficient to produce a require amount of fluid. 所有的油气储层都要经历压力降低的过程，大多数井在某些阶段需要人工举升，通常是在储层的压力不足以自流自喷。人工举升系统也可以用于自喷井和储层压力不足以生产所需量时的增产。 Extensive research and field studies have been conducted on a range of artificial-lift systems that have been developed and applied extensively to meet industry needs. These systems include beam pumping, gas lift, electrical submersible pumps, progressive cavity pumps, and hydraulic.为满足行业的需求，广泛的研究和实地调查已经进行了，人工举升系统得到了广泛的发展和应用。这些系统包括游梁抽油机，气举，电潜泵（ESP），螺杆泵（PCP的），和液压泵。 Gas lift lightens the fluid gravity to increase the flow and correspondingly lower the sand-face pressure.气举减轻流体的重力增加流量并相应地降低砂表面压力。 One definition of lift system efficiency is found by dividing the power added to the fluid stream by the amount of power needed from external sources such as motors or compressors.升降系统效率的定义之一是电源加入到流体的能量除以外加能量，例如电机或压缩机所需的功率量。 Beam pumping systems actuate a downhole plunger pump with traveling and standing valves. PCP pump rotate from rods or a downhole motor that spins a metal rotor inside a rubber stator and moves a cavity of fluid upward as the pump spins. 游梁式抽油系统驱动带有游动阀和固定阀的井下柱塞泵。螺杆泵旋转螺杆或井下电机旋转橡胶定子内的金属转子，使一腔流体向上移动，由于泵的旋转。 ESP systems include a motor powered though a three-phase cable from the surface to rotate a stack of impellers inside a stack of diffusers.The hydraulic reciprocating pump is a rapidly reciprocating plunger pump with ball-and-seat check vavles. 电潜泵系统包括一个电机通过来自地面的三相电缆来转动一堆内叶轮推进器和里面的一堆分离器。液压往复泵是一种带有球座单流阀的高速往复式柱塞泵。 In intermittent lift, the well is produced and is periodically shut in until sufficient pressure builds in the casing to lift liquids and to produce the well for a brief time before shutting the well in again. The same down