Hydrate development layered physical simulation experiment device

Abstract

The invention relates to a hydrate development layered physical simulation experiment device. The hydrate development layered physical simulation experiment device comprises a pressure bin, a simulation assembly and a blocking assembly, wherein the pressure bin is internally provided with a test cavity, an exploitation opening communicating with the test cavity is formed in the top end of the pressure bin, and an exploitation pipe with an opening extending into the test cavity is inserted into the exploitation opening; the simulation assembly is placed in the pressure bin and comprises a pair of upper simulation kettle and lower simulation kettle which are matched mutually, the lower simulation kettle is driven by a lifting mechanism to move into and move out of the upper simulation kettle, the upper simulation kettle is internally provided with a partition plate for partitioning the cavity of the upper simulation kettle into a cover layer and a hydrate layer which are distributed in the up-down direction, and a gas layer is arranged in the lower simulation kettle; and the upper simulation kettle and the lower simulation kettle are blocked by the blocking assembly. The hydrate development layered physical simulation experiment device has the advantages that the design of the pressure bin is adopted, thus the partition plate can be moved away under the constant-pressure and constant-temperature situations after hydrates are formed, and the problems that the time of forming the hydrate by multiple layers of settlings is long, and layering of the hydrates is difficult due to the water gravity are solved.

Description

technical field [0001] The invention relates to the field of hydrate development, in particular to a hydrate development stratification physical simulation experiment device. Background technique [0002] Gas hydrate, also known as "combustible ice", is an ice-like crystalline substance distributed in deep-sea sediments or permafrost in land areas, formed by natural gas and water under high-pressure and low-temperature conditions. Because its appearance is like ice and it can burn when exposed to fire, it is also called "combustible ice". Its resource density is high, the global distribution is wide, and it has extremely high resource value, so it has become a long-term research hotspot in the oil and gas industry. Since the 1960s, some countries represented by the United States, Japan, Germany, my country, South Korea, and India have formulated research plans for the exploration and development of natural gas hydrates. So far, more than 230 gas hydrate deposits have been ...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a physical simulation experiment device for hydrate development layering, which can solve the problem of slow hydrate formation time of multi-layer sediments and water gravity. Reasons for making hydrate stratification difficult

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