Device for synchronously testing weak cemented undiagenetic hydrate acoustics and saturation as well as method thereof

Abstract

The invention relates to a device for synchronously testing weak cemented undiagenetic hydrate acoustics and saturation as well as a method thereof. A rubber container is arranged in the high pressure reaction vessel, a rock sample which is obtained by real time generation and decomposition of the hydrate is arranged in the rubber container, the bottom part of the high pressure reaction vessel is connected with an aperture pressure support system, the aperture pressure support system is formed by connecting a first pump with a methane gas bottle, the top of the high pressure reaction vessel is connected with a liquid container with a stirrer through a second pump, an automatic pressure release apparatus is arranged at the upper side of the high pressure reaction vessel, a sensor is arranged at the side wall of the high pressure reaction vessel, and the data is connected with a data process system. The device has the beneficial effect that a lower air inlet mode has the advantage that the generation and decomposition processes of a natural gas hydrate can be simulated, and reliable data can be obtained, and the data comprises the acoustics and TDR parameter changed by following with confining pressure and saturation, and the device provides theoretical basis for exploration of the natural gas hydrate.

Description

technical field [0001] The invention relates to a testing experiment device and method, in particular to a synchronous testing device and method for acoustic and saturation of weakly cemented undiagenetic hydrate, which is mainly used for real-time monitoring of acoustic and saturation (TDR) parameters of weakly cemented undiagenetic hydrate. Real-time measurement and method of confining pressure and saturation changes. Background technique [0002] With the rapid development of the world economy and society, energy security has become an important aspect related to the survival and development of a country. For my country, the contradiction between the rapid economic development and the insufficient supply of domestic oil and natural gas has become increasingly prominent in recent years. On the other hand, in recent years, global climate change has attracted great attention, and the "low carbon revolution" has triggered a boom in the world. The proportion of natural gas as ...

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Problems solved by technology

[0005] At present, there are few experimental devices for measuring the acoustics and electricity of weakly cemented undiagenetic hydrates, the operation is not simple enough, and many factors have not been considered

For example, the utility model patent application No. 201320327023.4 is an acoustic and electrical study on diagenetic gas hydrates with strong cementation, and does not consider the influence of various parameters of gas hydrates during the formation and decomposition of weakly cemented undiagenetic gas hydrates; the application No. 201220232032.0 utility model patent does not consider the impact of confining pressure on the physical properties of natural gas hydrate

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