Experiment system for exploring relation between steam dryness and pressure

Abstract

The invention discloses an experiment system for exploring the relation between steam dryness and pressure. The experiment system comprises a kettle body and a data acquisition and control system; a heating heat-insulating sleeve is arranged on the outer wall of the kettle body; a high-pressure visible metering tube, a high-pressure window, a liquid inlet, a gas inlet, a pressure sensor, a thermocouple and a safety valve are arranged on the lower part of the kettle body; a piston is arranged in the kettle body; the piston and a piston lifting mechanism are connected; and the data acquisition and control system is electrically connected with the pressure sensor, the thermocouple, the heating heat-insulating sleeve, the safety valve and the piston lifting mechanism. The influence rule on thesteam by the pressure is analyzed by changing the pressure and combining with the water volume read from the high-pressure visible metering tube. The rought the heating heat-insulating sleeve, the experiment working condition at any temperature can be realized and the temperature control effect can be achieved. The experiment pressure is changed by inflating a certain amount of gas through the gas inlet, so that the experiment research under different pressure can be realized. Either the steam dryness is influenced by partial pressure or is influenced by the total pressure is explored by changing the total pressure and the partial pressure.

Description

technical field [0001] The invention relates to the technical field of steam dryness research, in particular to an experimental system for exploring the relationship between water vapor dryness and pressure. Background technique [0002] In recent years, with the continuous exploitation of oil, oil fields have entered the stage of heavy oil and super heavy oil production. Practice has proved that steam injection thermal oil recovery is one of the effective recovery methods, and SAGD technology is the most efficient thermal recovery method. Against the backdrop of a series of national policies and factors such as energy conservation and emission reduction, low-carbon production, environmental protection, and crude oil prices, it is necessary to explore more efficient and cost-effective heavy oil thermal recovery technologies. The application of a series of technologies such as injection of high-dryness wet steam and non-condensable gas assisted steam in the existing SAGD tec...

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Problems solved by technology

[0003] Some researchers focused on the dryness measurement problems of saturated steam dryness by double vortex street method, conductivity measurement of saturated steam dryness, throttling method and dryness correction of saturated steam flow. Discussion and research have been carried out on the problem, but these technologies mainly focus on the measurement of the dryness, and no substantial physical simulation experiments have been carried out to study the factors affecting the dryness, nor have they tested whether the steam dryness is affected by high pressure. Partial pressure effects have been studied

At present, there is no experimental device to explore whether the dryness of water vapor is related to the total pressure or the partial pressure, and the specific relationship between the dryness of water vapor and the pressure

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