Method and device for conducting and recycling subterranean heat with production casings

A geothermal energy and casing technology, which is applied to heating devices, geothermal energy power generation, and other non-combustion heat generation, can solve the problems of difficult large-scale application, uneconomical, and no practical value, and achieve the effect of reducing economic barriers.

Active Publication Date: 2010-09-15
大庆市三仁新能源科技开发有限公司
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Problems solved by technology

In short, other methods such as conduction, heat exchange, injection and pumping adopted by geothermal energy technology in other aspects are all limited to the idea and experimental stage due to factors such as large investment, low heat energy

Method used

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  • Method and device for conducting and recycling subterranean heat with production casings
  • Method and device for conducting and recycling subterranean heat with production casings
  • Method and device for conducting and recycling subterranean heat with production casings

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Embodiment Construction

[0045] The present invention will be further described in conjunction with accompanying drawing:

[0046] figure 1 It is a schematic diagram of the well body structure of an existing unperforated oil-water well. As shown in the figure, the tubing 30 is located in the oil layer casing 4, and the oil layer casing 4 is installed in the underground oil layer or water layer. The oil layer casing 4 is covered with a cement sheath 21. At the easily collapsible formation, a technical casing 22 is installed outside the cement sheath 21, and a surface casing 23 is installed outside the technical casing 22 under the ground surface.

[0047] figure 2 It is a schematic diagram of the wellbore structure of the existing perforated oil-water well. figure 1 The wellbore shown is different in that the reservoir casing 4 is provided with some perforation pores 24 at the reservoir.

[0048] image 3 It is the structure diagram of geothermal well body with dividers installed, as shown in the ...

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Abstract

The invention relates to a method and device for conducting and recycling subterranean heat with production casings. The method comprises the following steps: previously selecting a discarded or idle or in-use well, respectively sealing the perforated pores at the well bottom and oil water layer by utilizing separators, closely connecting a heat radiator with the well mouth, vacuumizing the interior, and pressing a given amount of low boiling point medium or water to form a heat transfer unit for recycling subterranean heat with low-cost long-distance gravity assisted heat pipes. The low boiling point medium or water in the heat transfer unit vaporizes after absorbing subterranean heat, the vapor from latent heat of vaporization is continuously transferred to the heat radiator on the upper part, and the heat of the vapor from latent heat is transferred to a natural low-temperature liquid or temperature difference power generation module in the heat-storage energy-accumulation tank through the wall of the heat radiator, thereby recycling heat. The invention is used for solving the problems of high investment and difficulty in large-scale application in the application of subterranean heat, and greatly reduces the cost for utilizing subterranean heat.

Description

Technical field: [0001] The heat energy of the earth itself is an inexhaustible source of energy for human beings. How to transfer the powerful thermal energy below the surface of the kilometer or 10,000 meters to the ground in a cheap and convenient way to serve human beings is a task for inventors. , engineers and technicians, scientists, politicians, and scholars cannot ignore the problem. How to conduct geothermal energy, and what method is used to make clean and fully usable energy use existing equipment and technology to overcome the economic crisis, financial crisis, energy crisis, and environmental crisis brought about by existing limited resources under the condition of reducing a large amount of investment The troubles brought by these four major crises to human society are also the huge creative business opportunities and responsibilities that all inventors cannot avoid. The present invention is a method and device for economically transferring geothermal energy to...

Claims

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Application Information

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IPC IPC(8): F24J3/08F01D15/10H02N11/00
CPCY02E10/10
Inventor 龚智勇
Owner 大庆市三仁新能源科技开发有限公司
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