Efficiency test and calculation method of high gas-liquid ratio machine pumping system

CN115618158BActive Publication Date: 2026-06-05CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEMICAL CORP
Filing Date
2022-06-23
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing technologies fail to adequately consider the energy released by the gas during the lifting process when calculating the efficiency of high gas-liquid ratio pumping systems, resulting in lower accuracy of system efficiency.

Method used

By calculating the pump inlet pressure, pump outlet pressure, effective power, and motor input power, and considering the energy release and utilization of gas during the lifting process, especially the impact of the virtual height of the dynamic fluid level and the gas entering the pump on the system efficiency, this paper provides a method for calculating the efficiency of mechanical oil production systems in high gas-liquid ratio wells.

Benefits of technology

It improves the accuracy of efficiency measurement for high gas-liquid ratio well mechanical oil production systems, conforms to actual conditions, and has broad prospects for promotion and application.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a high gas-liquid ratio well mechanical oil production system efficiency testing and calculating method, which comprises the following steps: considering the energy release of gas in the lifting process, calculating the pump inlet pressure and the pump discharge pressure; according to the pump inlet pressure and the pump discharge pressure, calculating the effective power; and based on the effective power and the motor input power, calculating the high gas-liquid ratio well mechanical oil production system efficiency. The application fully considers the utilization of gas energy, is more in line with the actual situation, improves the high gas-liquid ratio well mechanical oil production system efficiency precision, and has a wide application prospect.
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