关键词: 煤层气, 储层特征, 产能预测, 开发潜力, 排采曲线, 白布井田

Abstract:

This paper, based on Guizhou's Baibu coalfield's coalbed distribution, geology and resource, uses CBMSIM software to simulate the coalbed methane production capacity of the major coalbed, and analyzes its similarity with Guanzhai coalfield in reservoir and Guanzhai GZ01's ground coalbed methane test. Baibu coalfield owns many favorable conditions like many minable beds, high content of coalbed methane, high quality, good absorption, big resource and high concentration, but unfavorable in poor permeability, and lower pressure gradient. According to GZ01, Baibu may be of big production capacity where there are favorable geology and reservoir conditions. In general, Baibu coalfield is of good coalbed methane reservoir and geology, it is of potential to develop ground coalbed methane. This study offers technical supports and references for southwestern China in ground coalbed methane development and handling gas.

Key words: coalbed methane, reservoir features, production capacity forecast, developing potential, extraction curve, Baibu coalfield