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Method and device for sea natural gas hydrate production

A mining method and hydrate technology, which is applied in the direction of fluid mining, mineral mining, earth drilling and mining, etc., to achieve the effects of low cost, high work efficiency and simple equipment

Inactive Publication Date: 2005-03-02
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Application Information

AI Technical Summary

Problems solved by technology

Although above-ground decomposition mining overcomes some shortcomings of underground decomposition mining, it is still only an idea, and there are still many problems to be overcome, and there is still a considerable distance from the actual mine application
[0006] In summary, so far, there is no specific and effective method that can be used to exploit gas hydrates

Method used

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  • Method and device for sea natural gas hydrate production

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing, content of the present invention is further described:

[0018] The device adopted in the present invention comprises the following parts:

[0019] 1. Drill bit 2, drilling rig 3, mixture channel 4, sediment separation device 5, decomposition tank 6, heating equipment 7, seawater input pipeline 8, hot water or steam output pipeline 9, natural gas input pipeline 10, natural gas output pipeline 11, seawater Output pipeline 12, pump 13, pump 14, pump 15, pipeline

[0020] as attached figure 1 As shown, the natural gas hydrate layer on the seabed is extended into the drill bit 1 for production, and the mixture of hydrate, sediment and decomposed gas is discharged to the sediment separation device 4 located on the seabed, and the separated mixture of hydrate, decomposed gas and water It is transported to the decomposition tank 5 located on the sea surface through the pipeline 15, and the pump 14 inputs the seawater with highe...

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Abstract

The invention discloses a kind of marine natural gas hydrate drilling device and equipment. The method includes the following steps: exploit the natural gas hydrate layer in the sea floor; separate the silt in the sea floor, then transmits the mixture of natural hydrate, resolved gas and water nito the resolving device on the sea-level; heat the sea water with higher temperature in the sea level; channel the hot water or steam after heating into the resolving device for resolving; channel out the resolved natural gas and sea water separately. The device incldues drilling facility, silt separating equipment, sea water ehating facility, hydrate resolving device and natural gas leading out pipeling. The method and device of the invention well overcome the drawbacks of the existing method for exploiting marine natural gas hdyrate, its equipment is simple, operation is easy, cost is low, working efficiency is high, can apply to extensive exploitation of marine natural gas hydrate.

Description

technical field [0001] The invention relates to a method and device for exploiting marine natural gas hydrate. Background technique [0002] Natural gas hydrate is a high-quality and clean energy in the future. Its reserves are equivalent to the total carbon of the existing earth's fossil fuels (oil, natural gas and coal). It will become the most important energy source for human beings in the 21st century. The successful exploitation of natural gas hydrate is of great significance to alleviating the energy crisis faced by human society. At present, the exploitation technology of natural gas hydrate has become a hot research topic in the world. [0003] Natural gas hydrate is mainly stored in the ocean, and it is a white solid crystalline substance formed by the interaction of small natural gas molecules with water under certain conditions. Due to its own characteristics, natural gas hydrate is different from the development of conventional traditional energy sources. Coal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C50/00
CPCE21B2043/0115E21B41/0099
Inventor 冯自平郝永卯黄冲肖睿
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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