Analysis for Gas Control Technology of Coal Mine in Southwest Guizhou

2014 ◽  
Vol 1073-1076 ◽  
pp. 2117-2122
Author(s):  
Qing Song Li ◽  
Guo Hong Li ◽  
Xian Wei Heng ◽  
Shu Jin Zhang
Keyword(s):  
Coal Seam ◽  
Mining Area ◽  
Control Technology ◽  
Coal Seam Gas ◽  
Existing Problems ◽  
Management Personnel ◽  
Gas Occurrence ◽  
Gas Control ◽  
Advanced Production ◽  
High Degree

Through on-site inspection for the typical coal mines of each coal tectonic units in Southwest Guizhou as well as analysis of gas parameter, highlight information and gas control technology, the thesis makes the following conclusions. Namely, the overall state of coal seam gas occurrence in Southwest Guizhou mining area presents characteristics with high degree in north and west together with low degree in east. With regard to the existing problems in gas control of this region, it has put forward some suggestions. For example, people shall add test parameters for coal seam gas in most mines, find out status of the mine gas occurrence, make specialized design in terms of gas emission characteristics and perform strict management to ensure proper implementation. Moreover, people can carry out targeted research for outburst prevention indicator, establish suitable predictor system, optimize instrument and equipment, match with current advanced production technology, introduce professional talents and strengthen training for related technology and management personnel.

Study on Technology of Fully-Mechanized Sub-Level Caving Mining Technology in the Datong Permo Carboniferous Coal Seam

2012 ◽  
Vol 616-618 ◽  
pp. 565-568
Author(s):  
Bin Yu ◽  
Jun Zhao ◽  
Hong Chun Xia
Keyword(s):  
Coal Seam ◽  
Mining Area ◽  
Hard Coal ◽  
Control Technology ◽  
Mining Technology ◽  
Hard Roof ◽  
Sublevel Caving ◽  
Seam Mining ◽  
Longwall Top Coal Caving ◽  
And Control

This thesis briefly introduced roof control technology in fully-mechanized sublevel caving mining with hard roof and hard coal seam, Mining technology , gas prevention and comprehensive prevention and control technology in spontaneous combustion of coal, which in longwall top-coal caving face with hydraulic support in thickness seam in the Datong permo carboniferous coal seam . New development directions of fully-mechanized sublevel caving mining technology in the Datong mining area in the next few years.

Geostress and Coal Seam Gas Occurrence

2021 ◽  
pp. 337-376
Author(s):  
Yuanping Cheng ◽  
Qingquan Liu ◽  
Ting Ren
Keyword(s):  
Coal Seam ◽  
Coal Seam Gas ◽  
Gas Occurrence

Gas Control Technology of Fully Mechanized Caving Face of Hard Desorbing Coal Seam

2013 ◽  
Vol 718-720 ◽  
pp. 1335-1340
Author(s):  
Gang Wang ◽  
Hai Yang Wang ◽  
Xin Hua Zhang
Keyword(s):  
Coal Seam ◽  
Efficient Production ◽  
Control Technology ◽  
Actual Situation ◽  
Coal Face ◽  
Gas Emission ◽  
Investment Cost ◽  
Residual Gas ◽  
Gas Control ◽  
Residual Coal

Basing on the problems of residual coal in goaf in fully mechanized caving face in hard desorbing coal seam, high content of residual gas, large gas emission, serious gas overrun in return airflow corner and vitiated air, combing the actual situation in 3-219 fully mechanized caving face, the paper has adopted adjacent goaf drainage, drainage in gas drainage technology, formed a low investment cost and effective gas control technology and ensured the safe and efficient production in coal face and has a certain reference to control gas of fully mechanized caving face in hard desorbing coal seam.

A Study on the Occurrence Law of Coal Seam Gas in Shanxi

2012 ◽  
Vol 594-597 ◽  
pp. 2244-2250 ◽  
Author(s):  
Guang Wu Xue ◽  
Hong Fu Liu ◽  
Jing Lin Guo
Keyword(s):  
Coal Seam ◽  
Mining Area ◽  
Magmatic Rock ◽  
Gas Content ◽  
Control Factor ◽  
Coal Seam Gas ◽  
Qinshui Basin ◽  
Mining Areas ◽  
Control Factors ◽  
Open Structures

The thickness of overlaying bedrock is the main control factor of preservation, in addition, magmatic activities, different structural types and hydrogeological conditions are also control factors. Regional magmatic thermometamorphism appeared as a kind of superimposed effect on the background of deep metamorphism. Two Eastwest （EW）metamorphic belts in Shanxi tallied with the distribution of magmatic rock masses, resulting in coal seam gas exploitation and utilization bases of Yangquan and Jincheng mining areas. From gas-accumulation structural setting, closed type structures make high gas content in coal reservoir such as Qinnan, Gujiao, Xingjiashe, Dongshe areas in the Qinshui Basin, Shilou, Daning-Jixian and Sanjiao-Liulin areas in the Hedong Basin, gas content is 10-15 m³/t or even higher. There are convenient channels for coal seam gas effusion in the open structures; with lower gas content, such as Lishi mining area in Hedong Basin, Huoxi structural area in Qinshui Basin, Hunyuan, and Wutai coal districts.

scholarly journals Controlling Effects of Surrounding Rock to Coal Seam Gas Occurrence

2013 ◽  
Vol 03 (01) ◽  
pp. 28-32
Author(s):  
Laibin Wang ◽  
Shiwen Zhang ◽  
Jinshan Shen ◽  
Zhongwen Zhang ◽  
Xiaotong Yang
Keyword(s):  
Coal Seam ◽  
Surrounding Rock ◽  
Coal Seam Gas ◽  
Gas Occurrence

scholarly journals Effect and mechanism of geological structures on coal seam gas occurrence in Changping minefield

2019 ◽  
Vol 8 (1) ◽  
pp. 104-115
Author(s):  
Xiangjun Chen ◽  
Liyang Li ◽  
Yu Yuan ◽  
Hong Li
Keyword(s):  
Coal Seam ◽  
Coal Seam Gas ◽  
Geological Structures ◽  
Gas Occurrence

Gas Geology Law and Gas Forecast in Yongju Well Field

2011 ◽  
Vol 361-363 ◽  
pp. 208-211
Author(s):  
Cui Jia ◽  
Yu Lin Wang ◽  
Xu Yang ◽  
Mi Shan Zhong ◽  
Nan Yan
Keyword(s):  
Coal Seam ◽  
Geological Structure ◽  
Measured Data ◽  
Gas Content ◽  
Coal Seam Gas ◽  
Production Safety ◽  
Geological Conditions ◽  
Well Field ◽  
Gas Occurrence ◽  
The Relationship

This paper takes gas as a geological-mass to study, using gas geology theory, by analysising the geological conditions of Yongju mine in ShanXi, combining with the coal seam gas content data which measured underground to study the relationship between geological conditions and gas occurrence, reveal the gas occurrence factors: geological structure, roof and floor lithologic of coal seam, buried depth of coal seam and thickness of coal seam. Finally, using the measured data of gas content and gush, regression analysis, the gas gush is forecasted, playing a guiding role in the gas control and production safety .

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