Discussion of Enrichment Pattern of Lower-rank Coalbed Methane

Abstract

Abstract: By analysis of enrichment law of coalbed methane in Powder River Basin in USA and Tiefa Basin in China, it summarizes that the plug-backing is the key factor to affect the enrichment of lower-rank coalbed methane, the main factors to form plug-backing of coalbed methane include tectonics, rocks and water momentum. Meanwhile, it is put forward that 5 various modes of coalbed methane enrichment, including anticline mode, structure-water momentum, structure-lithologic mode, lithologic-water momentum mode and lithologic mode

Key words: lower-rank coal, coalbed methane, enrichment mode

CLC Number:

P618.11

Fu Xiaokang, Huo Yongzhong and and Ye Jianping. Discussion of Enrichment Pattern of Lower-rank Coalbed Methane[J]. China Petroleum Exploration, 2006, 11(3): 73-75,8.

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Discussion of Enrichment Pattern of Lower-rank Coalbed Methane

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