Solar and wind combined steam generating device for extracting high wax content crude oil

Abstract

The invention relates to a solar and wind combined steam generating device for extracting high wax content crude oil; and the solar and wind combined steam generating device mainly comprises two parts, wherein one part is used for heating water to a boiled state so as to generate steam and the other part is used for heating the steam by using solar energy and wind energy in a combined way. Special water for steam injection is mixed and heated by a solar vacuum heat collecting tube bundle and wind energy, heat circulation of the special water for steam injection is forced to implement by a hot water circulating pump, the heating temperature of hot water is controlled by a temperature control valve, the steam is generated after the water temperature reaches a boiling point, and then the steam enters a steam and water separating chamber. The separated steam enters a solar vacuum heat collecting tube and a wind heat pump to be heated, after the steam is heated and pressurized, high temperature (370 DEG C) and high pressure (21MPa) steam, which satisfies a steam flooding condition, is formed, and then the high temperature and high pressure steam is injected into a high wax content reservoir, so that the viscosity of the high wax content crude oil can be reduced and the recovery efficiency of a heavy oil reservoir can be increased. According to the solar and wind combined steam generating device for extracting the high wax content crude oil, provided by the invention, through combined heating of the solar energy and the wind energy, the defect of energy imbalance caused by influences of geographical environments and meteorological conditions on the solar energy and the wind energy is overcome, the heating efficiency is increased, and energy conservation and environmental protection are achieved.

Description

technical field [0001] The invention belongs to the field of petroleum development, and in particular refers to utilizing solar energy and wind energy as heat sources to generate steam for exploiting high-waxy crude oil. Background technique [0002] Of the approximately 10 trillion barrels of remaining oil resources in the world, more than 70% are heavy oil resources. More than 70 heavy oil fields in 12 basins in my country have oil and gas resources of more than 3 billion tons, and oil fields with high wax content, high condensation and high viscosity account for as high as 53%. [0003] Steam flooding is a process in which high-temperature steam is used as heat-carrying fluid and driving medium to continuously inject gas from gas injection wells and continuously produce oil from adjacent production wells, and use the injected heat and quality to improve oil displacement efficiency. Viscosity reduction and thermal expansion of steam play a leading role in the production i...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the use of environmental energy (solar energy, wind energy) and renewable energy together as a high-temperature steam heat source does not require the use of existing energy sources, and overcomes the defects of energy imbalance caused by solar energy and wind energy due to the influence of geographical environment and meteorological conditions. High utilization rate, long working hours, energy saving, high efficiency, environmental protection, etc.

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