Oil field steam-injection boiler heating system adopting solid thermal-storage electric boiler and two-stage heat exchange

Abstract

The invention provides an oil field steam-injection boiler heating system adopting a solid thermal-storage electric boiler and two-stage heat exchange. The oil field steam-injection boiler heating system comprises a thermal source heating system, a steam injection system and an exhaust pipeline. The thermal source heating system comprises the solid thermal-storage electric boiler and a two-stage heat exchange system. Subcritical and supercritical steam can be generated through the solid thermal-storage electric boiler and the two-stage heat exchange system and injected underground through the steam injection technical system to heat crude oil, and the steam injection and heating processes are conducted on a thickened oil well. Power grid night off-peak electricity with low electricity price can be used and converted into heat energy, and high-temperature heat storage is conducted through the solid thermal-storage electric boiler. Steam injection and heating are conducted on the thickened oil well through high-parameter steam produced by the oil field steam-injection boiler heating system, the problem of combustion emission pollution of an oil field steam injection boiler is solved, peak-valley difference peak regulation can be conducted on a power grid by combining the electric boiler and the energy storage technology, and the best solution scheme facilitating energy conservation, emission reduction and environment protection of the petroleum industry and electricity peak regulation of power plants and the power grid is achieved.

Description

technical field [0001] The invention relates to the field of steam injection production in heavy oil oilfields, in particular to equipment for generating heating steam in oil production plants and oil wells and improvement of steam injection systems. Background technique [0002] As oil resources gradually enter the fields of human life and social interaction, global oil consumption is increasing rapidly, thin oil resources are decreasing day by day, and oil prices are rising. People are turning their attention to the development of abundant heavy oil resources. Thermal recovery steam injection boiler, as the key core equipment of heavy oil recovery technology, is widely used in major oil fields at home and abroad. The exploitation of heavy oil wells requires a special steam injection boiler, that is, to use the high-pressure and high-temperature steam generated by the steam boiler to inject the high-temperature and high-pressure steam into the underground of the oil well to...

AI Technical Summary

Problems solved by technology

The high-parameter steam produced by such a solid heat storage electric boiler two-stage heat exchange system can be used to heat heavy oil wells by steam injection, which can not only solve the problem of combustion and emission pollution of steam injection boilers in oil fields, but also use electric boilers and energy storage technologies to control power grids. Peak-to-valley difference peak-shaving is the best solution for energy-saving, emission-reduction, and environmental protection in favor of the petroleum industry, power plants and power grid power peak-shaving

Images