07-11-2012 дата публикации
Номер: CN102767372A
Автор:
Hu Qianting,
Wen Guangcai,
Dong Guowei,
Zou Yinhui,
Zhang Qinghua,
Wang Qixiang,
Zhao Xusheng,
Cui Junfei,
Tan Muguang,
Lin Huiqin,
Tang Hanying,
Zou Yunlong,
Deng Ganbo,
Zhang Yi
Принадлежит:
The invention discloses a protective layer selecting method of coal and gas outburst, and aims at solving the problems that protective layer selection of coal and gas outburst mainly relies on experience and lacks theoretical basis. According to the invention, theories including sedimentology and sequence stratigraphy are adopted, and coal measure strata rock stratum property, rock stratum thickness, rock stratum spacing, coal seam thickness and sequence system domain of coal seams are analyzed; under the same geological tectonic conditions, the nearer the coal seams to transgression systems domain largest sea (lake) flooding surface positions, gas storage amount is larger (except limestone top floor coal seams), highlighted tendentiousness of coal seams and gas is larger, so according to the character, coal seam gas occurrence and highlighted tendentiousness of and coal and gas are performed, and theoretical selection of coal and gas outburst protective layer can be performed. The protective ...
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