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THE GAS-BEARING SITUATION AND METHANE-ENRICHING MECHANISM OF COAL SEAMS IN THE COALFIELD OF SOUTH AND NORTH OF THE HUAIHE RIVER IN ANHUI

Long Wang yin(The Academy of Exploration of Anhui Bureau of Coal Geology, Bengbu 233010)  
The coalfield is an important coal base in East China and chosen as one of key target areas for the research of exploration andexploitation of coal bed gas of China due to its rich seams and gas resources and complete types of coal. This paper is based on three targetareas of Panji and Zhangji of Huainan , and Sunan syncline of Huaibei to deeply research into the gas - bearing characteristics of coal bedsin the coalfield, discuss on the enrichment mechanism of coal bed gas and calculate the amount of methane resources, serving as a basis forthe appraisal of areas selected for exploration and exploitation of the gas in the coalfield.
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