Self-adaptive control supercritical hydrothermal combustion type multi-element thermal fluid generating system

Abstract

A self-adaptive regulation and control supercritical hydrothermal combustion type multi-element thermal fluid generation system comprises a reactor, a material pretreatment module, an oxidizing agent supply module, a cooling module, a temperature and pressure regulating module and the like, and the reactor, the material pretreatment module, the oxidizing agent supply module and the supercritical hydrothermal combustion reaction module are used for generating multi-element thermal fluid; the pressure and the temperature of the multi-element thermal fluid are adjusted through the temperature and pressure adjusting module, the wall face of the reactor is protected through the cooling module, the multi-element thermal fluid meeting the exploitation requirement is safely and stably produced, and a feasible scheme is provided for efficient exploitation of thickened oil.

Description

technical field [0001] The invention belongs to the technical field of heavy oil thermal recovery, and in particular relates to an adaptively regulated supercritical hydrothermal combustion type multi-element thermal fluid generation system. Background technique [0002] Viscous oil, also known as heavy oil, refers to the viscosity greater than 50MPa s and the density greater than 0.92g / cm under the conditions of the oil layer 3 of crude oil. The global oil reserves are about 9-11 trillion barrels, 70% of which are heavy oils with high viscosity (heavy oil and super heavy oil account for 40%). At present, heavy oil recovery technologies such as steam huff and puff, steam flooding, and steam-assisted gravity drainage are mainly used in oil fields to exploit heavy oil. Steam as a heat carrier is injected into the formation to heat heavy oil, reduce the viscosity of heavy oil, improve its fluidity, and facilitate extraction. Nowadays, the increase of heavy oil production by c...

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Problems solved by technology

However, the thermodynamic parameters of the multi-element thermal fluid produced by supercritical hydrothermal combustion are usually 25MPa, about 600-700°C. Excessively high temperature and pressure may cause gas blow-by, which greatly reduces the oil production capacity of the oil well.

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