Potential hazard of coalbed methane accumulation in quarterly sandstone aquifer in Barito Kuala District, Indonesia
The blow-out of coalbed methane was happened twice in Barito Kuala District, indonesia, in November 2006 and October 2008. The first blow-out, Barambai blowout, has 1.5 m of height from land surface, releases mix of water, gas, and mud. It is originated from a freshwater well (0.038 m in diameter) of local people that targeted on water in aquifer at depth of 138 meter. Meanwhile the second one Wanaraya blowout, is located 13 km away from Barambai blow-out. It releases only methane freshwater well with 75 m depth. Both of these blowouts are still active (May 2009). The methane is generated from coal seams below the aquifer layer. It migrates through normal fault zone system, accumulated and trapped in the aquifer layer above coal seams. The potential hazard related to the accumulation of methane in aquifer layer is the possibility of methane gas blows-out as the methane accumulated and trapped within confined aquifer. Barambai blow-out caused 2 (two) homes nearby must be removed to avoid dangerous condition i. e. fire and subsidence.
coalbed methane migration freshwater well aquifer south kalimantan
D. Triwibowo
Mining and Energy Office of South Kalimantan Province, Banjarbaru,70711, Indonesia
国际会议
徐州
英文
793-800
2009-09-24（万方平台首次上网日期，不代表论文的发表时间）