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Cogeneration method for desalinating sea water and exploiting ocean natural gas hydrates

A natural gas and hydrate technology, applied in the field of resources and environment, can solve the problems of marine ecosystem damage, seawater desalination cost increase, resource waste, etc., and achieve the effects of cost reduction, hazard avoidance, and simple mining process

Active Publication Date: 2007-09-12
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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Problems solved by technology

Such large-scale concentrated brine is directly reinjected into the sea without comprehensive utilization. On the one hand, it will cause damage to the marine ecosystem at the injection point of the concentrated brine, and on the other hand, it will also cause waste of resources and lead to higher desalination costs.

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  • Cogeneration method for desalinating sea water and exploiting ocean natural gas hydrates

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Embodiment Construction

[0021]The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing: as shown in accompanying drawing 1, at first build the hydrate that runs through natural gas hydrate reservoir 2 and seabed sediment layer 6 and seawater layer 7 on the seabed rock layer 1 of seabed The production well 21, the gas collection well 5 and the horizontal well 3 connecting the production well 21 and the gas collection well 5, the sand filter device 4 is installed in the gas collection well, and the seawater desalination device 15 and the gas-liquid separator 12 are also installed on the offshore floating platform 10 , gas storage tank 13, sea water desalinator feed water pump 14, concentrated brine pump 16, and lay gas and liquid delivery pipelines between each equipment at the same time. During the operation of the device, the seawater is transported to the seawater desalination device 15 through the water supply pump 14 of the seawater desa...

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Abstract

This invention disloses a combining method for desalting seawater and exploiting sea natural gas hydrates including: building an exploitation well, a level well and a collection well, building a floating platform on the sea, a sea desalt device and a natural gas hydrate exploitation device, desalting sea water, analyzing the natural gas hydrates and collecting the natural gas. This invention comprehensively utilizes the thick brine generated in the process of sea water desalting and uses it in the decompound and exploitation of natural gas hydrate to reduce the comprehensive cost.

Description

technical field [0001] The invention belongs to the technical field of resources and environment, and relates to natural gas hydrate exploitation technology and seawater desalination technology, in particular to a joint production method of seawater desalination and marine natural gas hydrate exploitation. Background technique [0002] Energy crisis and water shortage are the two most prominent problems faced by many countries in the world today in the process of economic and social development. The research and development of new alternative energy and renewable energy, as well as the research of water resources and technology research have become the focus and focus of scientific research in all countries, especially developed countries. [0003] Natural Gas Hydrate (Natural Gas Hydrate, referred to as Gas Hydrate) is a non-stoichiometric, ice-like, cage-type crystalline compound formed by low-molecular-weight hydrocarbons in water and natural gas under low temperature and...

Claims

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Application Information

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IPC IPC(8): C02F1/04C02F1/22C02F1/44C02F1/469C10L3/08C02F103/08
CPCE21B41/0099
Inventor 陈朝阳李小森颜克凤李刚
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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