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Ocean combustible ice mining device and method

A marine and heating device technology, applied in the direction of mining fluid, earthwork drilling, wellbore/well components, etc., can solve the uneconomical problems of combustible ice, and achieve significant economic benefits and superior technical performance

Inactive Publication Date: 2012-12-12
韩中枢
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Judging from the use of the above methods, it is uneconomical to use only one method to mine combustible ice. Only by combining the advantages of different methods can the economic mining of combustible ice be achieved.

Method used

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  • Ocean combustible ice mining device and method
  • Ocean combustible ice mining device and method
  • Ocean combustible ice mining device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Attached below figure 1 A kind of marine combustible ice mining method and its mining device provided by the present invention are further described, as figure 1 As shown; the combustible ice layer in the ocean is extended into the drill bit 1 for mining, and the mixture of combustible ice, sediment and decomposition gas is pumped to the sediment separation device 4 located on the ground, and the mixture of combustible ice, decomposition gas and water after separation Through the pipeline 15, it is transported to the decomposition tank 5 located on the floating base on the sea surface. The pump 14 will use the thermon effect hydrogenation gas to combust the heater 6. The heated combustible ice is input into the decomposition tank 5 through the pipeline 8, and the decomposed natural gas passes through the pipeline 10. Export, and another part of natural gas is exported through the pipeline 9, the heating equipment 6 is used as the seawater heating center, and the pipelin...

Embodiment 2

[0088] Attached below figure 2 with 3 Further description of another marine combustible ice mining method and its mining device provided by the present invention:

[0089] as attached Figure 2-3 As shown, on the seabed rock layer 2, the combustible ice mining well 37, the gas gathering well 5 and the horizontal well 36 connecting the mining well 37 and the gas gathering well 5 are constructed to run through the seabed sediment layer 6 and the combustible ice storage layer 3, The horizontal well 36 is located in the combustible ice reservoir 3, the sand filter device 4 is installed in the gas gathering well, and the seawater concentration heating device 1, the hot brine delivery pump 39 and the gas-liquid mixer 31 are installed at a certain depth in the seawater layer 7, and the floating platform on the sea Gas-liquid separator 13, natural gas compressor 14, CNG gas storage tank 16, seawater concentration heating device feedwater pump 15, combustible ice formation recovery ...

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Abstract

The invention discloses an ocean combustible ice mining method and a mining device adopted by the same. According to the ocean combustible ice mining method, a device for mining combustible ice through heating concentrated saline water is adopted, and heat for heating a combustible ice storage layer is provided by heating the concentrated saline water. The ocean combustible ice mining method is energy-saving and environment-friendly, remarkable in economic benefit, is free from emission and pollution in a mining process, energy-saving and consumption-reducing; and the ocean combustible ice mining device is relatively sample in structure, convenient to use, lower in production cost and convenient for popularization.

Description

technical field [0001] The invention relates to a method for mining combustible ice, in particular to a method for mining combustible ice on the seabed, and a mining device used therefor. Background technique [0002] Natural gas hydrate, also known as "combustible ice", is a solid substance formed by mixing water and natural gas under high pressure and low temperature conditions. It looks like ice and snow or solid alcohol, and it can burn when exposed to fire. High, clean and pollution-free, combustible ice, as the preferred alternative energy source for the "post-petroleum generation", is a strategic resource with commercial development prospects in the 21st century. In my country, as an important new energy mineral deposit in the future, "combustible ice" will be included in the energy planning for the first time. On March 15, 2011, combustible ice has been included in the "Twelfth Five-Year Plan" energy development plan to accelerate exploration and scientific research...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/01E21B43/24
Inventor 韩中枢陈飞鹏陈辉煌
Owner 韩中枢
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