CBM geology and exploring-developing stratagem in Guizhou Province, China.

Abstract: There are remarkable characteristics of the “one poor, two more, three higher and four bigger” in the coalbed methane (CBM) conditions of Guizhou, China. These show in one aspect the predominance with higher CBM resource accumulation, coal reservoir energy and developing potential in Guizhou, and in another aspect come into being disadvantageous of coal reservoir permeability and recasting. So, new thought and technologies must be sought ask for the CBM development in Guizhou. The authors in the paper considered that it is essential to survey clearly CBM resources in whole province, to analyze the adaptability of various CBM-mining technologies to the geological conditions in Guizhou, and, then, to frame rationally the stratagem and layout of CBM exploration and development aiming at the particularity of CBM geology in the province. In was suggested that near CBM exploration and surface development should be focalized to the Zhina coal field and a CBM pilot test with vertical or cluster wells may be carried into execution using for reference the Jincheng''s pattern. As for the Liupanshui and other coal fields, the Huainan''s pattern can be used for reference. [Copyright &y& Elsevier]