Experimental device for simulating generation and exploition of benthonic combustible ice and application method thereof

An experimental device, a technology for simulating seawater, used in the exploitation of fluids, fuels, gas fuels, etc.

Active Publication Date: 2014-08-13
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Currently proposed gas hydrate extraction methods are basically c

Method used

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  • Experimental device for simulating generation and exploition of benthonic combustible ice and application method thereof
  • Experimental device for simulating generation and exploition of benthonic combustible ice and application method thereof

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Experimental program
Comparison scheme
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Embodiment Construction

[0010] The specific embodiment of the present invention will be described in conjunction with the accompanying drawings.

[0011] Step 1: Make a sample of the combustible ice reservoir. Mix the sand and ice powder evenly, and calculate the void ratio of the mixture of ice powder and sand particles ; assuming the initial height of the mixture is , the height of the mixture after compression is ,but , for pressure The amount of compression of the mixture under action. According to the definition of void ratio in soil mechanics and the volume of mixture will not change, and let , while the cross-sectional area of ​​the mixture remains unchanged before and after compression, so that:

[0012]

[0013] In the known experiment required void ratio The height that the mixture needs to be compressed under the condition , by applying pressure to the mixture the compression amount is , to complete the blank sample production;

[0014] The second step: cover...

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Abstract

The invention discloses an experimental device for simulating the generation and the exploition of benthonic combustible ice and an application method thereof. The experimental device comprises a stainless steel cylinder body, a middle penetration plate, a bottom rubber airbag, a top sealing device and an external frame, wherein the cylinder body is divided into three parts by the middle penetration plate of the whole device, i.e., a simulated seawater layer, a sedimentation layer (hydrate layer) and a free air layer from top to bottom; three windows are respectively designed in the front surface and the rear surface of the cylinder body, thereby being convenient for observation of phenomena during the generation and the decomposition of hydrates; the top sealing device works in a combined mechanical sealing mode, so that the sealing effect of the device can be guaranteed; the pore ratio of a combustible ice storage layer can be controlled according to experimental designs; and a magnetizer-induced heating temperature controller is wrapped around the combustible ice storage layer, so that the temperature can be accurately controlled so as to realize the heating of the storage layer. According to the experimental device, the conventional hydrate synthesis and decomposition experiment can be carried out; meanwhile, the large-scale simulation of the benthonic hydrates can be realized; and particularly, the phenomena in synthesis and exploition processes can be recorded by a high-speed CCD (Charge Coupled Device) camera during the generation and the exploition of seepage-type hydrates, so that the simulation visualization is realized.

Description

technical field [0001] The invention relates to the field of combustible ice development, which is used for simulating the generation and mining process of seabed combustible ice, especially seepage hydrate. The invention can not only realize conventional hydrate synthesis and decomposition experiments, but also realize large-scale simulated seabed hydrates, especially the generation and exploitation process of seepage hydrates, and can also use high-speed CCD cameras to record the synthesis and exploitation process. Phenomenon. Background technique [0002] Natural gas hydrate, also known as combustible ice, is a natural pollution-free green energy. Its calorific value is extremely high. Under the same conditions, the heat released by complete combustion can reach dozens of times that of coal gas. The carbon content of natural gas hydrates that have been explored and proven is equivalent to twice the total carbon content of proven fossil energy sources (oil, natural gas, ...

Claims

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Application Information

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IPC IPC(8): C10L3/10E21B43/16
Inventor 蒋宇静公彬王刚黄娜
Owner SHANDONG UNIV OF SCI & TECH
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