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Deep geothermal well structure and transformation method for waste geothermal well

A technology for geothermal wells and deep layers, applied in the fields of new energy and energy conservation and environmental protection, can solve the problems of waste of groundwater resources, high cost of dry-hot rock geothermal drilling, and difficulty in recharging, so as to improve heating capacity, increase investment in heat extraction, and reduce effect of investment

Active Publication Date: 2020-09-15
广东中科光年数智科技有限公司
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Problems solved by technology

[0004] In view of this, the present invention proposes a deep geothermal well structure and a transformation method for abandoned geothermal wells, aiming to solve the problems of waste of groundwater resources caused by the difficulty of recharging existing hydrothermal wells and high cost of dry hot rock geothermal drilling

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  • Deep geothermal well structure and transformation method for waste geothermal well
  • Deep geothermal well structure and transformation method for waste geothermal well
  • Deep geothermal well structure and transformation method for waste geothermal well

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Embodiment Construction

[0025] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] Structure example:

[0027] see Figure 1 to Figure 4 , which shows a preferred structure of the deep geothermal well structure provided by the embod...

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Abstract

The invention provides a deep geothermal well structure and a transformation method for a waste geothermal well. The deep geothermal well structure comprises a deep geothermal well body and a heat exchanger, wherein the deep geothermal well body comprises the waste geothermal well, and a plugging layer is arranged on the inner wall of the waste geothermal well; the heat exchanger is arranged in the length direction of the deep geothermal well body, a gap is reserved between the heat exchanger and the inner wall of the deep geothermal well body to enable an annular channel to be formed betweenthe heat exchanger and the deep geothermal well body, a heat exchange medium flows in the annular channel and exchanges heat with rock stratums around the deep geothermal well body, and the heat exchange medium flows into the heat exchanger from the tail end of the heat exchanger so as to be pumped to the ground along the heat exchanger for heating. According to the deep geothermal well structure,an existing waste geothermal well structure is transformed and utilized, the investment is reduced, only heat is collected, water is not collected, the economic value is generated while underground water and the environment are protected, and the unit investment heat taking amount of the geothermal heating technology and the geothermal heating economy are improved.

Description

technical field [0001] The invention relates to the technical fields of new energy, energy conservation and environmental protection, and in particular relates to a structure of a deep geothermal well and a method for transforming an abandoned geothermal well. Background technique [0002] my country has a vast territory and spans multiple climate zones. In the rapid economic and social development, as people's pursuit of a better life is getting higher and higher, heating has become an important direction of energy utilization. The way of heating is mainly divided into centralized heating and distributed heating. Centralized heating generally refers to the method of using thermal power plants to centrally supply heat to a large area. The main primary energy used is coal. A large amount of smoke is emitted, which pollutes the environment and puts pressure on environmental protection. Another common way is distributed heating. Currently, under the unified command of "coal ...

Claims

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Application Information

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IPC IPC(8): F24T10/17E21B33/13
CPCF24T10/17E21B33/13Y02E10/10
Inventor 陈峰刘洪涛
Owner 广东中科光年数智科技有限公司
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