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Method and device for sea natural gas hydrate production

A mining method and hydrate technology, which is applied in the fields of fluid mining, mineral mining, earth cube drilling, etc., to achieve the effects of simple equipment, convenient operation and high work efficiency

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 equipment 5. Pipeline 6. Decomposition tank 7. Seawater input pipeline 8. Seawater output pipeline 9. Natural gas output pipeline 10. Pump 11. Pump 12. Pump

[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 on the seabed through the pipeline, and the separated hydrate, decomposed gas and water The mixture of the mixture is transported to the decomposition tank 6 on the sea surface through the pipeline 5, and the pump 10 transfers seawater with a higher temperature on the sea surface to the decomposition tank 6 through the...

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Abstract

The invention discloses a kind of marine natural gas hydrate drilling device and equipment. The method incldues the following steps: exploit the natural gas hydrate layer in the sea floor; separate the silt in the sea floor through silt separating equipment, then transmits the mixture of natural hydrate, resolved gas and water into the resolving device on the sea-level; channel the sea water with higher temperature into the resolving device on to resolve natural gas hydrate; channel out the resolved natural gas and sea water separately. The device includes drilling facility, silt separating equipment, hydrate resolving device and natural gas leadingo ut pipeline, etc. The method and device of the invention well overcome the drawbacks of the existing method for exploiting marine natural gas hydrate, its equipment is simple, operation is easy, cost is low, working efficiency is high, and 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 between natural gas and water under certain conditions. Due to the characteristics of natural gas hydrate, its mining method is different from the development of conventional energy sources (such as coal...

Claims

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Application Information

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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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