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Geothermal and mineral resource co-mining method

A technology of mineral resources and co-mining, applied in surface mining, underground mining, mining fluids, etc., can solve problems such as the related technical data of co-mining of geothermal and mineral resources, etc., to prevent a large number of infiltration into the stope and achieve full utilization , the effect of improving mining efficiency

Pending Publication Date: 2021-09-17
NORTHEASTERN UNIV
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Problems solved by technology

[0005] Existing geothermal resource mining technology is only limited to geothermal mining, and there is no relevant technical information on co-mining geothermal and mineral resources

Method used

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  • Geothermal and mineral resource co-mining method
  • Geothermal and mineral resource co-mining method

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0032] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention belongs to the technical field of geothermal and mineral resource mining, and discloses a geothermal and mineral resource co-mining method. The method comprises the steps that 1, a surface moving belt is determined; 2, a water injection well and a pumping well are drilled at the two ends of a target ore body; 3, arc-shaped drilled wells connected with the water injection well and the pumping well are drilled according to the vertical interval of a second preset threshold value; 4, high-pressure water is injected into every two adjacent arc-shaped drilled wells in the same horizontal plane to form a fracture surface, and the opening degree of the fracture surface is kept through a propping agent in the fracture surface; 5, the step 4 is repeated till the fracture surfaces are formed at all the arc-shaped drilled wells, so that the fracture surfaces and the arc-shaped drilled wells form a three-dimensional fracture net; 6, geothermal resources are mined in the mode that the pumping well pumps water and water is injected into the water injection well; and 7, when the temperature of the target ore body is lower than a fifth preset threshold value, the target ore body is mined through a filling method. Cooperative mining of geothermy and minerals in a high-temperature environment is achieved.

Description

[0001] This application claims the priority of the Chinese patent application with the application number 202110551206.3 and titled "A Method for Co-mining Geothermal and Mineral Resources" submitted to the China Patent Office on May 20, 2021, the entire contents of which are incorporated in this application by reference middle. technical field [0002] The invention belongs to the technical field of geothermal and mineral resources mining, and in particular relates to a method for co-mining geothermal resources and mineral resources. Background technique [0003] Theoretically speaking, the available ore-forming space inside the earth is distributed from the surface to 10,000 meters underground. At present, the advanced exploration and mining depth has reached 2,500 to 4,000 meters. However, most of the current mining depths are mostly less than 500 meters. The deep march is a strategic technological problem that must be solved. [0004] In the deep part of the earth, ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/30E21C41/16E21F15/00
CPCE21B43/30E21C41/16E21F15/00
Inventor 刘洪磊关凯刘书源张鹏海张权云邓文学
Owner NORTHEASTERN UNIV
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