Device for simulating and evaluating damages of recharge to stratum

A simulation evaluation and harmful technology, applied in teaching models, instruments, soil material testing, etc., can solve problems such as formation damage, high temperature and high pressure of geothermal recharge layer, and achieve good promotional effects

Pending Publication Date: 2020-01-17
CHINA HUANENG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the temperature of the geothermal recharge layer is high and the pressure is high. The conventional simulation evaluation method in the laboratory under normal temperature and pressure is quite different from the actual situation underground. At present, the equipment cannot carry out different recharge fluid compositions, variable recharge rates, etc. The impact on recharged geothermal formations, the i...

Method used

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  • Device for simulating and evaluating damages of recharge to stratum
  • Device for simulating and evaluating damages of recharge to stratum
  • Device for simulating and evaluating damages of recharge to stratum

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Embodiment Construction

[0020] The present invention is described in further detail below in conjunction with accompanying drawing:

[0021] refer to figure 1 The device for simulating and evaluating the harmfulness of recharge to the formation according to the present invention includes a gas cylinder 1, an air extraction pump 4, a voltage stabilizer 6, a constant current device 8, a buffer chamber 24, a liquid storage tank 10, and a first liquid extraction pump 13 , mixing tank 15, first valve 19, second pump 21, sterilizer 23, first flowmeter 26, first pressure gauge 28, second pressure gauge 43, second flowmeter 45, drain pipe 48, Waste liquid barrel 49, salt adding device 17 and sample holder 31; the outlet of gas cylinder 1 is connected with the inlet of buffer chamber 24 through air pump 4, voltage stabilizer 6 and constant flow device 8, and the outlet of liquid storage tank 10 The first liquid suction pump 13 is connected with the inlet of the mixing tank 15, and the outlet of the mixing ta...

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Abstract

The invention discloses a device for simulating and evaluating damages of recharge to a stratum. The device comprises a gas cylinder, a sucking pump, a pressure stabilizer, a galvanostat, a buffer chamber, a liquid storage tank, a first liquid sucking pump, a stirring barrel, a first valve, a second liquid sucking pump, a sterilization device, a first flow meter, a first pressure meter, a second pressure meter, a second flow meter, a liquid discharging pipe, a waste liquid barrel, a salt adding device and a sample holder, and can simulate and evaluate damages of recharge to the stratum.

Description

technical field [0001] The invention belongs to the technical field of geothermal exploration and development, and relates to a device for simulating and evaluating the harmfulness of recharge to formations. Background technique [0002] Geothermal resource is a kind of renewable energy with large resource reserves and good stability. It is of great significance for energy saving, emission reduction, and air pollution control. It has a significant effect on clean energy heating and improving the quality of heating in North China. [0003] However, with the continuous development of geothermal resources, the groundwater level in some areas has dropped significantly, seriously affecting the effective supply and balance of groundwater resources, resulting in unsustainable geothermal development and restricting the further exploitation of geothermal resources. In order to promote the recyclable use of geothermal resources and meet environmental protection requirements, geotherma...

Claims

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Application Information

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IPC IPC(8): G01N33/24G09B25/00
CPCG01N33/24G09B25/00
Inventor 荆铁亚赵文韬张健郜时旺王金意
Owner CHINA HUANENG GRP CO LTD
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