Development of a Method for Improving the Energy Efficiency of Oil Production with an Electrical Submersible Pump

Abstract

Most of the operating oil fields are in the late stages of development, in which special attention is paid to the oil production energy efficiency. In accordance with the trend toward the digitalization of technical processes, intelligent control stations for production wells are currently being developed, one of the main tasks of which is to maintain the equipment operation in an optimal mode. This work aims to develop a methodology for selecting an energy-efficient well operation mode by choosing the methods for controlling an electrical submersible pump. To solve this problem, a mathematical apparatus for calculating power consumption is presented, which considers the well pressure curve, while taking into account its degradation when pumping reservoir fluids, the fluids’ properties, the supply of demulsifier, and the equipment’s operating parameters. Based on the simulation results, it is revealed that the optimal method for controlling electrical submersible pump installations is a combination of frequency control and choke control. The reduction in specific power consumption with the combined control relative to the use of separate control types is up to 7.30%, and in the case of additional use of a demulsifier, it is up to 12.01%. The developed algorithms can be implemented based on programmable logic controllers of intelligent control stations.

Development of a New Model for the Formation of Wax Deposits through the Passage of Crude Oil within the Well

“…However, at the moment there is no universal technique [18]. At the same time, in the context of intensive digitalization of the oil field, work is underway to create digital twins of oil fields [19,20]. To accomplish this task, it is necessary to be able to simulate all technological processes in an oil field, including the formation of wax deposits, since their accumulation leads to a change in pressure and temperature in the oil collection and transportation system [21,22].…”

Influence of Blade Exit Angle on the Performance and Internal Flow Pattern of a High-Speed Electric Submersible Pump

“…Groundwater used for irrigation is a valuable underground resource with high development value. In addition, well submersible pumps are also widely used in oil production and geothermal utilization [2]. As well, submersible pumps are the core equipment for pumping low-level fluids [3], and so the market has also placed higher demands on their performance in recent years [4][5][6].…”

Automatic Control and System Theory and Advanced Applications—Volume 2

“…The contribution [15] by Petrochenkov et al addresses the optimization of oil pumps in severe behavioral conditions. The control strategy proposed by the authors is based on efficient process control principles based on energy consumption.…”