A liquid production heating system for oil wells using photovoltaic auxiliary power generation

CN122170533APending Publication Date: 2026-06-09CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEMICAL CORP
Filing Date
2024-12-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing technologies suffer from problems such as blowout freezing and blockage, poor heating effect, and high power consumption in carbon dioxide flooded oil wells and oil wells in extremely cold regions. Furthermore, existing photovoltaic-assisted heating devices have complex structures and are not explosion-proof.

Method used

A production fluid heating system for oil wells utilizing photovoltaic-assisted power generation was designed, comprising photovoltaic panels, a heating element, and a PLC control device. It adopts an explosion-proof design, uses electromagnetic coil heating, and combines solar energy and grid power supply to achieve efficient heating.

Benefits of technology

It solves the problems of blowout freezing and low heating efficiency, reduces production costs, and improves heating efficiency. It is suitable for carbon dioxide flooding wells and oil wells in extremely cold regions.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention is an oil well production fluid heating system utilizing photovoltaic-assisted power generation. The PLCs in the blowout heating control device and the gathering and transportation heating control device are electrically connected via wires to the explosion-proof blowout heating body and the temperature sensors in the gathering and transportation heating body. The two-phase high-frequency AC power generated by the blowout heating control device and the gathering and transportation heating control device is electrically connected via cables to the electromagnetic coils in the blowout heating body and the gathering and transportation heating body. The two-phase DC power generated by the photovoltaic panel is connected to an inverter, which sequentially supplies the inverted 0.4kV three-phase AC power to the multi-functional electricity meter and automatic circuit breaker in the ring network control cabinet. The blowout valve can be connected to the blowout heating body to heat the gas and liquid before blowout. The gathering and transportation heating body is connected between the production valve and the gathering and transportation process to heat the oil well production fluid for external transportation. This invention is applicable to carbon dioxide flooded oil wells and production wells, solving the problems of blowout freezing and blockage in oil wells and the need for heated gathering and transportation of oil well production fluids.
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