Three Phase Erosion Testing and Vibration Analysis of an Electrical Submersible Pump
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Electrical Submersible Pump (ESP) has been recognized as an excellent artificial lifting method in industry due to its high liquid flow rate in both onshore and offshore applications. As oil exploration goes deep into water, ESP equipment is facing a crucial problem of slurry erosion which may affect life and cost significantly. The wear caused by slurry erosion may bring the issue such as unbalanced side loads, severe vibration and decreased pressure head. Eventually, this phenomenon will lead to a complete system failure. In present work, a systematic study on the erosion wear has been carried out in order to give better understanding. The WJE-1000 ESP pump manufactured by Baker Hughes has been employed in this study. During the whole procedure, 117 hours two-phase (water-sand) testing has been performed and is followed by 68 hours three-phase (watersand- air) testing. A combined analysis by combining components erosion wear measurement, pump performance testing and vibration signal process has clearly indicated the trend of erosion process on each component. Furthermore, the correlation between vibration signals collected by proximity probe and remote 3D accelerometer provided a future direction for monitoring inaccessible downhole equipment. Finally, the conclusion that air could further accelerate ESP erosion has been found by comparing the erosion rate and vibration signals in two-phase test and three-phase test.
Zheng, Dezhi (2013). Three Phase Erosion Testing and Vibration Analysis of an Electrical Submersible Pump. Master's thesis, Texas A & M University. Available electronically from