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Artificial enhancement closed conduit shallow-layer geothermal method

A shallow and underdrain technology, which is used in collectors, drinking water installations, and climate change adaptation that use groundwater as a working fluid.

Active Publication Date: 2018-10-02
HENAN WANJIANG NEW ENERGY DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In areas with special water level and geological conditions, the aquifer is thin, the groundwater runoff velocity is high, and the water output of a single well cannot meet the demand, but the available groundwater in the formation is still sufficient, consider adopting this technology

Method used

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  • Artificial enhancement closed conduit shallow-layer geothermal method
  • Artificial enhancement closed conduit shallow-layer geothermal method

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The construction relationship of artificially enhanced culvert shallow geothermal system is as follows:

[0011] figure 1 System flow chart: Select regions with thinner aquifers, higher groundwater runoff velocity, but sufficient groundwater availability in the formation. First, excavate vertically to the target layer, place the well pipe 7 in the center, fill boulders 6 and gravel in the bottom layer, ream the hole at a certain inclination angle in the upper layer, and fill the gravel 5 and pebbles; Reaming at a certain inclination angle, filling pebbles 4, coarse sand; then reaming at a certain inclination angle, filling coarse sand 3, fine sand; reaming, filling miscellaneous soil 2; close to the surface of the stratum, filling planting Soil 1. A geothermal submersible pump is lowered in the well pipe 7, and the collected shallow geothermal water is extracted to increase the water yield of the shallow geothermal heat.

[0012] figure 2 System profile: 7 is the w...

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Abstract

The invention discloses an artificial enhancement closed conduit shallow-layer geothermal method. The method is characterized by including: vertically excavating to a target layer, placing a well casing at the center, filling boulder and gravel at the bottommost layer, chambering on an upper layer according to a certain inclination angle, and filling gravel and pebble; chambering on the upper layer according to a certain inclination angle, and filling pebble and coarse sand; chambering upwards according to a certain inclination angle, and filling coarse sand and silty fine sand; chambering, and filling mixed soil; filling planting soil at a position close to the surface of a stratum, lowering a geothermal submersible pump in the well casing, and extracting gathered shallow-layer geothermalwater. The method belongs to a shallow-layer geothermal system. Region hydrogeological conditions are improved locally by artificially enhancing water-permeable section area, water extraction amountof underground water is increased. Aiming at existing geological conditions, stratum water level geological conditions are modified artificially, a water guide passage meeting requirements is built through artificial design, and the underground water is made to reach standards required by needed hydrogeological conditions. The method is suitable for geological condition areas with shallow and thinwater-containing layers and high runoff velocity of the underground water.

Description

technical field [0001] This technology belongs to the shallow geothermal system. By artificially enhancing the permeable cross-sectional area, the regional hydrogeological conditions can be partially improved and the water intake of groundwater can be increased. Background technique [0002] In areas with special water level and geological conditions, the aquifer is thin, the groundwater runoff velocity is high, and the water output of a single well cannot meet the demand, but the available groundwater in the formation is still sufficient, consider adopting this technology. Contents of the invention [0003] According to the existing geological conditions, the present invention artificially transforms the geological conditions of the stratum water level, artificially designs and builds a water guide channel meeting the requirements, and makes the groundwater meet the required standard of hydrogeological conditions. This technology is suitable for areas with geological cond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03B3/06E03B3/12E03B3/24F24T10/20
CPCE03B3/06E03B3/12E03B3/24Y02A20/00
Inventor 庞文胜陈高凯焦雅岚
Owner HENAN WANJIANG NEW ENERGY DEV CO LTD