A deep geothermal well structure and reconstruction method for abandoned geothermal wells

A geothermal well and deep layer technology, which is applied in the fields of new energy, energy saving and environmental protection, can solve the problems of high cost of dry hot rock geothermal drilling, waste of groundwater resources, and difficulty in recharging, so as to increase investment in heat extraction, increase heating capacity, and reduce The effect of investment

Active Publication Date: 2022-04-15
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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  • A deep geothermal well structure and reconstruction method for abandoned geothermal wells
  • A deep geothermal well structure and reconstruction method for abandoned geothermal wells
  • A deep geothermal well structure and reconstruction method for abandoned geothermal wells

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[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 reconstruction method for an abandoned geothermal well. The deep geothermal well structure includes: a deep geothermal well body and a heat exchanger; wherein, the deep geothermal well body includes an abandoned geothermal well, and a plugging layer is arranged on the inner wall of the abandoned geothermal well; the heat exchanger is arranged along the length direction of the deep geothermal well body It is set, and there is a gap between the heat exchanger and the inner wall of the deep geothermal well body, so that an annular passage is formed between the heat exchanger and the deep geothermal well body, and the heat exchange medium flows in the annular passage and is connected with the deep geothermal well body. It exchanges heat with the rock formation, and flows from the end of the heat exchanger into the heat exchanger to be pumped along the heat exchanger to the ground for heating. The present invention transforms and utilizes the existing abandoned geothermal well structure, which not only reduces investment, but also only collects heat without collecting water, thereby generating economic value while protecting groundwater and the environment, and improving the unit investment of geothermal heating technology to obtain heat and geothermal energy Heating economy.

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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Patent Type & Authority Patents(China)
IPC IPC(8): F24T10/17E21B33/13
CPCF24T10/17E21B33/13Y02E10/10
Inventor 陈峰钱进刘洪涛
Owner 广东中科光年数智科技有限公司
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