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Plug for geothermal pipe, geothermal pipe and geothermal extraction system

A geothermal pipe and plug technology

Pending Publication Date: 2022-02-18
北京恒利新源地热能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The geothermal pipes in the related art have the technical problem of cumbersome downhole operation

Method used

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  • Plug for geothermal pipe, geothermal pipe and geothermal extraction system
  • Plug for geothermal pipe, geothermal pipe and geothermal extraction system
  • Plug for geothermal pipe, geothermal pipe and geothermal extraction system

Examples

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Embodiment Construction

[0044] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0045] Such as figure 1 As shown, the geothermal pipe 200 according to the embodiment of the present invention includes an inner pipe 10, an outer pipe 20 and a plug 100 (plug for geothermal pipe), the outer pipe 20 is sleeved on the inner pipe 10, and the outer pipe 20 has Opposite outer tube upper end and outer tube lower end 2001.

[0046] The outer tube 20 is sheathed on the inner tube 10 , so that a pipeline annulus 2002 is formed between the inner tube 10 and the outer tube 20 . Thus, after the geothermal pipe 200 is lowered into the geothermal well, the heat exchange fluid on the ground can flow into the bottom of the geothermal pipe through the pipe ann...

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PUM

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Abstract

The invention discloses a plug for a geothermal pipe, the geothermal pipe and a geothermal extraction system.The plug for the geothermal pipe comprises an outer fixed pipe and a movable pipe, the outer fixed pipe is provided with a first lower end and a first upper end which are opposite in the vertical direction, and the first upper end is used for being connected with the bottom of the geothermal pipe; at least one part of the movable pipe is movably arranged in the outer fixed pipe in the vertical direction so that the movable pipe can move between the extending position and the retracting position, the movable pipe is provided with a second lower end and a second upper end which are opposite in the vertical direction, the second lower end is blocked, the second upper end is opened, and the second lower end is closed. The pipe wall of the movable pipe is provided with a communicating hole penetrating in the inside and outside direction, the communicating hole, located at the extending position, of the movable pipe is located below the first lower end, and the communicating hole, located at the retracting position, of the movable pipe is located above the first lower end. The geothermal pipe with the plug has the advantages of being easy to operate in a well and the like.

Description

technical field [0001] The invention relates to the technical field of geothermal exploitation, in particular to a plug for geothermal pipes, a geothermal pipe and a geothermal extraction system. Background technique [0002] Geothermal is a mineral resource that integrates heat, minerals, and water. Compared with coal, oil and other energy sources, geothermal is not only clean, but also reusable, which is a renewable resource. Geothermal resources have many functions and are widely used. They are not only widely used in heating, cooling and bathing, but also a kind of hot brine resources and natural fertilizers for extracting industrial raw materials such as bromine, iodine, borax, potassium salts, and ammonium salts. Resources, but also valuable medical thermal mineral water and drinking mineral water resources and domestic water supply sources. [0003] "Water intake type" geothermal energy utilization technology requires the use of drilling rigs to drill geothermal well...

Claims

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Application Information

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IPC IPC(8): F24T10/20F16L55/10
CPCF24T10/20F16L55/10Y02E10/10
Inventor 陈大野王力凡
Owner 北京恒利新源地热能科技有限公司