Method for determining air-driven distance in air-driven brine mining method

An air-driven, brine mining technology, applied in the fields of fluid extraction, earthwork drilling, measurement, etc., which can solve problems such as difficulty in defining distance and range

Pending Publication Date: 2021-03-09
MINMETALS SALT LAKE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is still difficult to define the distance and range of brine effectively driven by air in the formation

Method used

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  • Method for determining air-driven distance in air-driven brine mining method
  • Method for determining air-driven distance in air-driven brine mining method
  • Method for determining air-driven distance in air-driven brine mining method

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Embodiment Construction

[0018] In order to better understand the above technical solutions, the technical solutions of the present invention will be described in detail below through the accompanying drawings and specific examples. It should be understood that the embodiments of the present invention and the specific features in the examples are detailed descriptions of the technical solutions of the present invention, and It is not a limitation to the technical solutions of the present invention, and the embodiments of the present invention and the technical features in the embodiments can be combined with each other under the condition of no conflict.

[0019] refer to figure 1 and figure 2 , figure 1 It is a schematic plan layout diagram of the air driving distance method of the embodiment of the present application, figure 2 It is a schematic longitudinal section diagram of the air driving distance construction method of the embodiment of the present application.

[0020] The air-driven brin...

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Abstract

The invention discloses a method for determining an air-driven distance in an air-driven brine mining method. The method comprises the following steps that S1, a brine collecting channel is excavated;S2, two grouting drill hole sets with a certain interval are arranged on the same side perpendicular to the brine collecting channel in parallel, each grouting drill hole set is composed of a plurality of grouting drill holes with a certain interval, a cementing material is injected into a brine storage layer through the grouting drill holes by means of a grouting pump, pores of part of the brinestorage layer are filled with the cementing material, and thus a waterproof columnar body is formed; S3, a continuously closed curtain wall is formed; S4, a gas injection drilling set is constructedat the end, away from the brine collecting channel, of the curtain wall perpendicular to the curtain wall formed by the two grouting drill hole sets, and air is injected into the brine storage layer through a gas injection device; and S5, the brine amount of the brine collecting channel is monitored in real time, and the length of the grouting drill hole sets and the distance between the gas injection drill holes and the brine collecting channel are adjusted. The step 5 is repeated until the most suitable air-driven distance of the brine storage layer is determined. The method can greatly improve the collection efficiency.

Description

technical field [0001] The invention relates to the technical field of underground brine exploitation. Specifically, this application relates to a method for determining the air-driven distance in the formation air-driven brine mining method. Test Method for Determining Air Drive Distance in the Brine Method. Background technique [0002] my country's potash resources only account for 2% of the world's proven reserves, but potash fertilizer production accounts for 15% of global production, and consumption accounts for 25% of global consumption; at the same time, 97% of my country's potash resources It is a brine-type salt lake deposit resource in Qinghai and Xinjiang. After several decades of high-intensity mining, some salt lakes have no brine to be mined, and most of the salt lake salt rock stratum surface potential brine mines have been exhausted, especially the salt lakes in the Qaidam Basin. Salt lakes have temporarily alleviated the plight of brine mining through wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/12E21B47/00
CPCE21B43/122E21B47/00
Inventor 唐发满李增荣张大义朱振光昝超杨佺忠李才年汪国柱山成栋山成梁山成祥
Owner MINMETALS SALT LAKE CO LTD
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