Natural gas hydrate inverse phase change formation evolution law experimental method and device
A technology of reverse phase change and experimental equipment, which is applied in the field of natural gas hydrate evolution test, can solve the problem that the gas cannot be exhausted, and achieve the effect of long service life
Pending Publication Date: 2021-03-26
GUANGZHOU MARINE GEOLOGICAL SURVEY
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[0004] The purpose of the present invention is to provide an experimental method and device for the formation and evolution law of natural gas hydrate reverse phase transition, so as to solve the technical problem that the gas in the inner chamber of the hollow container cannot be completely discharged in the prior art
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[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0042] like figure 1 As shown, the present invention provides an experimental device for the formation and evolution law of natural gas hydrate reverse phase transition, including a decomposition mechanism 1 for decomposing natural gas hydrate formed by quantitative gas and liquid to obtain decomposed gas and decomposed water. The decomposition mechanism 1 One end of the decomposition mechanism 1 is equipped with an injection mechanism 2 for injecting quantita...
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The invention discloses a natural gas hydrate inverse phase change formation evolution law experimental device, and the device comprises a decomposition mechanism used for decomposing natural gas hydrate formed by quantitative gas and liquid to obtain decomposers, and an injection mechanism used for injecting quantitative gas and liquid into the decomposition mechanism is installed at one end of the decomposition mechanism. A separation mechanism for separating the decomposed product decomposed by the decomposition mechanism is mounted at the other end of the decomposition mechanism. Accordingto the piston container, pressure relief and residual gas absorption can be carried out through the gas purification and flow guide mechanism, so that the stability of the piston container is not affected, and when the piston container is implemented, if liquid enters the piston container, the purified gas flow guide mechanism can guide flowing liquid to spirally flow so as to release impact force of the liquid injected by the pressure flow constant mechanism, so that the service life of parts in the piston container is long, meanwhile, residual gas in the piston container can be absorbed inthe pressure release process, and gas can be fully exhausted in the follow-up exhaust process.
Description
technical field [0001] The invention relates to the technical field of natural gas hydrate evolution test, in particular to an experimental method and device for the formation and evolution law of natural gas hydrate inverse phase transition. Background technique [0002] Natural gas hydrate is combustible ice, which is an ice-like crystalline substance formed by natural gas and water under high-pressure and low-temperature conditions. It is called "combustible ice", "solid gas" and " Steam ice", the chemical formula is CH 4 ·nH 2 O. Gas hydrate is an ice-like crystalline substance formed by natural gas and water under high pressure and low temperature conditions, often found in deep sea sediments or land permafrost. [0003] In order to know the evolution law of natural gas hydrate, it is necessary to simulate the reverse phase deformation of hydrate, and one of the devices that need to be used in the simulation process is a piston-type hollow container. The internal cha...
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Login to View More IPC IPC(8): G01N33/22
CPCG01N33/225
Inventor 陆程秦绪文马超耿澜涛余路边航齐荣荣邢东辉
Owner GUANGZHOU MARINE GEOLOGICAL SURVEY