Sukhanov A.,TU Bergakademie Freiberg |
Amro M.,TU Bergakademie Freiberg |
Abramovich B.,Mining University St Petersburg
Oil Gas European Magazine | Year: 2015
These analyses were performed to investigate the efficiency of operating electric submersible pumps (ESPs) an oil field in Western Siberia. This field is considered to be one of the most difficult in this region, as the reservoir temperature in some areas reaches anomalous values, and the amount of solid particles in the majority of wells exceeds the allowable value of 100 mg/l by 5-8 times. The article shows the main causes of failure of both ESP "X" and ESP "Z " of two different manufacturers. It considers the experience in almost 600 wells. The key efficiency indicator of the ESP is measured by the turnaround time (TAT). In our case the TAT of ESP "X" exceeds that of ESP "Z" by almost 3.5 times. Economically, it is estimated that after the second failure of ESP "Z", the costs for workover operations, subsequent repairs and washing out the wells already exceed the costs of ESP "X". Therefore, despite the high purchase costs for ESP "X", its further usage can achieve additional production of hydrocarbons in this oil field. These analyses have been conducted together with the Institute of Drilling Engineering and Fluid Mining at the TU Bergakademie Freiberg. © 2015 EID Energie Informationsdienst GmbH.