Method for detecting and treating air tightness of waste mine
An air-tightness detection and airtightness technology, which is applied in the direction of liquid-tightness measurement using liquid/vacuum degree, and by measuring the increase and deceleration rate of the fluid, can solve the problems of easy leakage of natural gas, development of cracks in mines, poor sealing, etc. Problems, to achieve the effect of improving availability, improving utilization, and improving airtightness
Active Publication Date: 2020-11-03
CHINA UNIV OF GEOSCIENCES (WUHAN) +1
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Problems solved by technology
The well-preserved shafts, roadways, chambers, etc. inside the mine are rare underground space resources, and the currently closed mines are in a state of being abandoned, which undoubtedly caused a huge waste of their underground space
[0003] In addition, the current underground gas storage technology mainly uses depleted oil and gas reservoirs and salt caverns to build storage, but it faces the problem of insufficient storage site resources and difficulty in meeting the demand for natural gas peak regulation and supply. Gas storage capacity building
[0004] Based on this, the application of using the underground space of abandoned mines to store natural gas has attracted more and more attention. However, the biggest disadvantage of using mines to build natural gas storage is that mines usually have cracks and poor sealing. High-pressure injection of natural gas is easy to leak and easily lead to disasters. Therefore, before injecting natural gas into the abandoned mine, it is very important to judge the air tightness of the abandoned mine
However, there is currently no feasible method for testing the airtightness of abandoned mines
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[0035] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0036] Please refer to figure 1 , the embodiments of the present invention provide a method for detecting and controlling the airtightness of an abandoned mine, which mainly includes the following steps:
[0037] S1. Pre-processing the abandoned mine: select the target abandoned mine, and obtain the distribution position information of the geological structure of the abandoned mine, the distribution position information of the internal structures and the inside of the mine according to the geological data of the abandoned mine, mine design drawings and construction materials. The engineering geological condition information of each part is used to obtain the development positions of faults, folds and fissures in the abandoned mine; Folds and fissures ar...
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The invention relates to the technical field of natural gas storage, in particular to a method for detecting and treating the air tightness of a waste mine which mainly comprises the following steps:S1, pretreating a waste mine; s2, detecting the air tightness of the abandoned mine; s3, numbering all roadways in the abandoned mine; s4, checking the air tightness of the main shaft; s5, checking the air tightness of the first roadway; s6, detecting the air tightness of the first roadway; and S7, checking the air tightness of each roadway. The method for detecting and treating the air tightnessof the abandoned mine has the advantages of being easy to operate, high in detection result accuracy, low in implementation cost and the like.
Description
technical field [0001] The invention relates to the technical field of natural gas storage, in particular to a method for detecting and controlling the airtightness of an abandoned mine. Background technique [0002] With the in-depth promotion of capacity reduction, more and more mines have been closed. Well-preserved shafts, roadways, chambers, etc. inside mines are rare underground space resources, and currently closed mines are in a state of being abandoned, which undoubtedly causes a huge waste of their underground space. [0003] In addition, the current underground gas storage technology mainly uses depleted oil and gas reservoirs and salt caverns to build storage, but it faces the problem of insufficient storage site resources and difficulty in meeting the demand for natural gas peak regulation and supply. Gas storage capacity building. [0004] Based on this, the application of using the underground space of abandoned mines to store natural gas has attracted more ...
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CPCG01M3/26
Inventor 窦斌王亚超郑君田红崔国栋胡郁乐刘贺娟
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)