Geothermal single-well same-layer pumping and irrigation system

CN223165744UActive Publication Date: 2025-07-29SHANDONG ZHENGYUAN YEDA TECH CO LTD
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Patent Information

Application Number
CN202422363843.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-26
Publication Date
2025-07-29
Estimated Expiration
2034-09-26

AI Technical Summary

Technical Problem

In the existing geothermal well system, the water is not heated enough during the underground circulation process, resulting in insufficient temperature of the geothermal water extracted from the circulation and insufficient heat utilization.

Method used

A single-well geothermal pumping system is adopted, including the main well and the auxiliary well. The main well is equipped with a water pumping pipe and an upper end drain pipe, a lower end drain pipe is installed in the auxiliary well, a main perforation hole is installed at the lower end of the main well, and a secondary perforation hole is installed on the horizontal well. The perforation hole is cleaned by sliding brushes to avoid blockage, and the support plate is strengthened outside the main well to improve stability and realize the full heating and recharge cycle of water.

Benefits of technology

The full heating and recharge cycle of water is achieved, the temperature of geothermal water extracted by circulation is increased, the problem of insufficient water temperature heating is avoided, and the economic and stability of the system is improved.

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Abstract

The utility model discloses a geothermal single-well same-layer pumping and irrigation system which comprises a vertical main well and two auxiliary wells, the main well extends into an aquifer, a water pumping pipe and an upper-end sewer pipe are vertically arranged in the main well, the water pumping pipe extends to the bottom of the main well, a lower-end sewer pipe is arranged along the line in each auxiliary well, and the upper-end sewer pipe and the lower-end sewer pipe are communicated. The lower end of the main well is provided with a main perforation, the horizontal well is provided with a plurality of auxiliary perforations, and the lower-end sewer pipe is provided with a water filtering hole. The upper end sewer pipe and the water pumping pipe are arranged in the main well together, the lower end sewer pipe extends to the two sides of the main well from the auxiliary wells on the two sides of the main well, a single-well same-layer pumping and irrigation system structure is formed, economy is high, the lower end sewer pipe extending to the two sides permeates circulating water to a water-bearing layer area in a wide range, the circulating water is mixed with original underground water, and the water pumping effect is good. The geothermal water is pumped out and participates in whole underground reheating, circulating heating is very sufficient, the temperature of the geothermal water pumped out in a circulating mode is high, and the problem that the circulating water is not heated enough is solved.
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Citation Information

Patent Citations

  • Novel medium and low temperature geothermal well

    CN108131852A