Coalbed Methane (CBM) Reservoir-Forming Character under Conditions of Coal Seam Groups
详细信息
- 责任者：Yang Zhaobiao (School of Mineral Resources and Geoscience ; China University of Mining and Technology ; Xuzhou 221008 ; China) ; Qin Yong
- 刊名：Coal Geology & Exploration
- 出版年：2011
- 卷期：39(5)
- 关键词：煤层 ; coal seam ; 煤层气 ; coalbed gas
- 页码：p.22-26
- 图表：2 illus., 1 table, 17 refs.
- 分类号：1003
- 出版序号：20120310
- issnNo：ISSN1001-1986
- isbnNo：CN61-1155/P
摘要
CBM reservoir-forming character of coal seam groups mainly exhibited “multiple united CBM system” or “multiple superposed CBM system”, coal seam groups of land river-delta-lake environments commonly showed “multiple united CBM system”, but coal seam groups of sea-land transition delta-tideflat-lagoon environments showed “multiple superposed CBM system”. Results of further anatomizing borehole measuring data of Bide-Santang Basin showed that strata sequence combination is a key factor of multi-coal-seam independent gas system. In accordance with water pumping borehole data, there are more than four independent gas systems, and overpressure may exists in coal-group developed in lagoon and tidal facies, but reservoir energy is uneven.