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A natural gas hydrate mining device and mining method based on solar energy technology

A hydrate and natural gas technology, which is applied in the field of natural gas hydrate reservoir exploitation to achieve the effects of improving seepage characteristics, low energy consumption and simple principle

Inactive Publication Date: 2018-03-06
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology

[0005] How to integrate solar energy into natural gas hydrate mining to achieve effective and economical development of hydrate reservoirs has become an urgent issue at present, and current research in this area is still basically at the theoretical stage

Method used

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  • A natural gas hydrate mining device and mining method based on solar energy technology
  • A natural gas hydrate mining device and mining method based on solar energy technology
  • A natural gas hydrate mining device and mining method based on solar energy technology

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0033] Such as figure 1 As shown, a natural gas hydrate extraction device based on solar energy technology includes a solar photovoltaic power supply system, a solar steam generation system, an ultrasonic generation system and an underground mining system.

[0034] The solar photovoltaic power supply system includes a solar battery array 1, a control conversion device 2 and a storage battery 3, the control conversion device 2 includes a solar controller and an inverter, the solar battery array 1 is connected to the input end of the solar controller, and the solar control The first output terminal of the controller is connected with the storage battery 3, and the second output terminal of the solar controller is connected with the inverter;

[0035] Described ultrasonic gener...

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Abstract

The invention relates to a natural gas hydrate mining device and mining method based on solar energy technology. The solar steam generation system heats the injected water to the temperature required for hydrate decomposition in the reservoir layer and pumps it into the hydrate reservoir layer. The solar photovoltaic power generation energy supply system Powering the ultrasonic generator, the ultrasonic generator heats the pumped hot water in situ through the thermal effect in the hydrate layer, and heat exchange occurs between the hot fluid and the hydrate layer to promote the rapid decomposition of natural gas hydrate in the pores to generate natural gas and water. Ultrasonic cavitation and oscillation can improve the seepage characteristics of the reservoir, thereby increasing the production rate and production efficiency of natural gas hydrate reservoirs. The beneficial effect of the invention lies in that the objectives of economical, high-efficiency, clean, low-energy consumption and low-cost exploitation of natural gas hydrate reservoirs are realized.

Description

technical field [0001] The invention relates to the technical field of natural gas hydrate reservoir exploitation, in particular to a natural gas hydrate exploitation device and exploitation method based on solar energy technology. Background technique [0002] The total reserves of natural gas hydrate in the world are about twice the sum of the carbon content of all fossil fuels that have been proven so far. The natural gas hydrate reserves in the South my country Sea of ​​China are 64.97 billion cubic meters. [0003] Many countries in the world are intensifying research on natural gas hydrate mining. At present, more mature mining methods include decompression mining method heat, thermal stimulation mining method, chemical reagent injection mining method, carbon dioxide displacement mining method and seabed mining excavation method. These methods have their own advantages and disadvantages. The depressurization method is more economical but the mining efficiency is very l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/20E21B43/24E21B43/01E21B33/122F22B1/00
CPCE21B33/122E21B43/01E21B43/20E21B43/24E21B43/2401F22B1/006E21B41/0099
Inventor 郭勇赵金洲伍开松蒲万芬
Owner SOUTHWEST PETROLEUM UNIV
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