Method of circular mining geothermal resources

A geothermal resource and regional technology, applied in the direction of geothermal energy power generation, other non-combustion heat generation, heating devices, etc., can solve the problems of high cost, serious pollution, limited, etc., to soften skin keratin, improve skin, prevent water level the effect of falling

Active Publication Date: 2015-03-25
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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Problems solved by technology

[0012] One is the use of coal to generate serious pollution, and the cost is relatively high. The total annual coal consumption (including coal power generation and heating) is 1 billion tons, conservatively calculated at 500 yuan per ton, which is 500 billion yuan;
[0013] The second is that the use of geothermal heat is only to get hot water from the ground, and although the amount of underground hot water is relatively large, it is also limited

Method used

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  • Method of circular mining geothermal resources

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Embodiment Construction

[0068] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0069] First make sure you have found a good reservoir

[0070] If a good reservoir is found, the specific steps are as follows: determine a well location on the reservoir that meets the requirements, generally refer to the outcrop data around the basin, combined with non-seismic geophysical and chemical exploration data, especially seismic and previous well drilling data in the area, And after the comprehensive geological condition analysis, the well location is determined, and the drilling is carried out. Generally, coal field or oil drilling rigs are used for drilling. The purpose is to confirm whether the reservoir determined by seismic as the main method exists, and if so, to determine whether the reservoir is ...

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Abstract

The invention relates to a method of circular mining geothermal resources. The method comprises following steps: (1) an area with a relatively-high geothermal gradient is confirmed; (2) a reservoir stratum in the area with the relatively-high geothermal gradient is confirmed; (3) well positions of two wells are confirmed along a main extending direction of the reservoir stratum, well drilling is conducted, one well is arranged on a relatively-low position of the reservoir stratum and is a water inlet well, and the other well is arranged on a relatively-high position of the reservoir stratum and is a water outlet well; (4) the water inlet well and the water outlet well are all drilled on the reservoir stratum, then perforation is conducted on the same reservoir stratum segment, a reservoir stratum channel is obtained, and the water inlet well is communicated with the water outlet well through the reservoir stratum; (5) on the ground, ground surface fresh water is injected from the water inlet well, the ground surface fresh water passes through the reservoir stratum channel, then hot water after heated is obtained, hot water after heated flows into the water outlet well, and then the hot water is sent to the water outlet well.

Description

technical field [0001] The invention relates to a method for circularly exploiting geothermal resources. Background technique [0002] "Geothermal" refers to the abbreviation of thermal energy resources buried in the ground that can be economically utilized by human beings. The earth's thermal field is also called the earth's temperature field or geothermal field. It is the earth's physical field together with the earth's electric field, gravity field, and magnetic field. The geothermal field represents the distribution of temperature in the layers of the Earth's interior. The temperature distribution and thermal field characteristics of each circle of the earth are different. Generally speaking, the thermal field refers to the part that can be directly measured in the upper layer of the earth. [0003] As a new energy source, geothermal resources have already attracted the attention of countries all over the world. Geothermal resources are a kind of precious natural res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24J3/08
CPCY02E10/18Y02E10/10
Inventor 姚亚明杨梓琪黄志全于怀昌黄志启
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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