| Characteristics of coal reservoir is generally from the regional geology, geological structure, hydrogeological aspects to analysize and research the gas bearing situation of coal seam, and also to the structure and fracture and porosity, and disposition of coal seam, adsorption isotherm and gas saturation Degree of coal, coal reservoir pressure, permeability and other reservoir characteristics of coal to do analysis and study with a series of work. Reservoir characteristics of coal bed is a key link of methane development, and only in the scientific, systematic and quantitative study, based on reservoir characteristics so as to make the best selection of coal bed methane, as to effectively improve the effectiveness of exploration and development, to accurately do evaluation of methane reservoir of coal bed, and predicte ultimate recovery ratio.In this paper, based on Shanxi Lu'an Mining Group 3# coal seam as the study area, according to a large number of coal geological exploration data and recently obtained results of coal bed methane exploration wells, with Lu'an Mining Coal seam characteristics, geological structure and hydro-geological conditions, etc., systematically Analysis of the Shanxi Lu'an Mining Group 3# coal seam of the reservoir characteristics, and its increasing yield method were discussed.3# coal seam of the mine are the main coal seam, its thickness is large and stable, high degree of thermal evolution, high gas content, poor permeability; tectonic history, coal seam cover depth, degree of thermal evolution and hydro-geological characteristics are main control factors of the coal bed methane enrichment, so find out the impact of these factors on the extent of coal bed methane, then can be made a.targeted development program on it.. |
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