收稿日期: 2005-01-07
修回日期: 2005-02-20
网络出版日期: 2005-04-20
基金资助
国家重点基础研究发展规划“973”项目(编号:2002CB211705 )资助.
THE INFLUENCE ON COALBED GAS CONT ENT BY HYDRODYNAMICS——THE STAGNANT GROUNDWATER CONTROLLING
Received date: 2005-01-07
Revised date: 2005-02-20
Online published: 2005-04-20
秦胜飞,宋岩,唐修义,洪峰 . 水动力条件对煤层气含量的影响――煤层气滞留水控气论[J]. 天然气地球科学, 2005 , 16(2) : 149 -152 . DOI: 10.11764/j.issn.1672-1926.2005.02.149
The flowing groundwater in coal measure can affect the c oalbed gas content largely. Both in horizontal and vertical directions, that in the area with stronger hydrodynamics, the gas content in coal is lower. However, in areas with weaker hydrodynamics, or stagnant area, the coal usually has high gas content. In coal mine production, the area with active groundwater has litt le gas outburst or no outburst. In the excavation area with weak or stagnant hyd rodynamics, the gas outburst usually happed with large amount of released gas. A ccording above, the stagnant water controlling is put forward.
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