Indonesia has thick, low-rank coal deposits that are prospective for coalbedmethane (CBM) development but remain untested. Conventional oil and gas wellsthat drill through these coal seams experience gas kicks and blow outs, goodCBM indicators. We analyzed petroleum and coal mining data to perform acomprehensive assessment of Indonesia's CBM resources. We identified 12.7trillion m3 (450 Tcf) of prospective CBM resources within eleven onshore coalbasins. Full-cycle development costs in high-graded areas are estimated at$0.70/Mcf. These potential CBM reservoirs could be tested at low cost usingcoreholes or production "wells of opportunity."

Keywords:
deposit, coal thickness, cbm resource, permeability, tcf, thickness, south sumatra basin, coalbed methane, coal bed methane, gas content
Subjects:
Unconventional and Complex Reservoirs, Coal seam gas
Copyright 2004, Society of Petroleum Engineers
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