Abstract
ABSTRACT One of the negative aspects that affect the energy efficiency of electric submersible pumps installations (ESPI) is the annular pressure increasing. To assess the effect of annular pressure on the energy efficiency of ESPI operation, a technique has been developed that allows determining the specific power consumption and flow rate of wells equipped with ESPI during cyclic operation. Based on the developed technique, an assessment of the gas pressure effect in the annular space on the energy efficiency of ESPI during cyclic operation at different well flow rates, as well as at different ratios of the duration of operation and downtime in the cycle was made. According to the calculation results, it was found that a decrease in annular pressure leads to an increase in the energy efficiency of ESPI operation. It was stated that the greatest reduction in specific power consumption during the operation of the ESPI relative to the continuous mode of operation is achieved with decreasing the operating time in the cycle. The developed technique and results can be used at oil-producing enterprises to reduce electricity costs of oil production.
Published Version
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