Experimental facility for temperature characteristic study in hydrate formation process

Abstract

The invention discloses an experimental facility for temperature characteristic study in a hydrate formation process. The experimental facility comprises a low-temperature chamber, a gas supply unit,a liquid supply unit, a heat insulating reaction kettle and a data collecting and recording unit, wherein the low-temperature chamber is used for simulating a low-temperature seabed environment and precooling gas and a liquid introduced into the heat insulating reaction kettle; the gas supply unit is used for supplying experimental gas to the heat insulating reaction kettle; the liquid supply unitis used for supplying an experimental liquid to the heat insulating reaction kettle; the data collecting and recording unit is used for collecting and recording experimental data in the hydrate formation process in real time. The experimental facility is not only applicable to the temperature characteristic study of the hydrate formation process in different systems, but also is suitable for determining ceiling temperature of the systems of an in-situ hot brine mining method under different experimental conditions, and hot fluid at specific temperature for implementation of the in-situ hot brine mining method is prepared through change of the experimental conditions and replacement of solution systems.

Description

technical field [0001] The invention relates to an experimental device for studying the temperature characteristics in the process of hydrate formation, in particular to an experimental device capable of conducting research on the temperature characteristics of different experimental systems caused by the heat release of the phase transition of hydrate formation, which can be directly measured to obtain the temperature characteristics under different experimental conditions. The upper limit temperature of the system caused by the phase change heat of hydrate formation, and at the same time, it can also be used as an experimental equipment for preparing hot fluid for the implementation of the in-situ mining method of hot brine. Background technique [0002] Gas hydrate (clathrate hydrate) is a non-stoichiometric ice-like crystalline compound formed by host water molecules and guest molecules under low temperature and high pressure conditions. Among them, the host water molecu...

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Problems solved by technology

[0008] The purpose of the present invention is to provide an experimental device for the study of temperature characteristics in the process of hydrate formation to solve the problem of preparation of thermal fluid in the in-situ mining method of hot brine, including the study of temperature characteristics in the process of hydrate formation and the determination of different experimental conditions The problem of the upper limit temperature of the lower system provides experimental support for the utilization of the phase change heat of hydrate formation and the implementation of the in-situ mining method of hot brine

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