シェールガス : 米国の新たな巨大天然ガス資源(<特集>未曾有のエネルギー環境激変〜天然ガス安定調達への道を探る〜)

概要

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Natural gas production from hydrocarbon rich shale formations, known as "shale gas", is one of the most rapidly expanding trends in onshore domestic oil and gas exploration and production in the United States today. In some areas, this has included bringing drilling and production to regions that have seen little or no activity in the past. The lower 48 states have a wide distribution of highly organic shale containing vast resources of natural gas. The total recoverable gas resources in five shale-gas plays (the Barnett, Haynesville, Fayetteville, Marcellus, and Wood ford) may be over 500 Tcf. Total annual production volumes of 3 to 5 Tcf may be sustainable for decades. This potential for production in the known onshore shale basins, coupled with other unconventional gas plays, is predicted to contribute significantly to the U.S.'s domestic energy outlook. No commercial shale-gas projects currently exist outside the U.S., but work continues to identify both new shale-gas reservoirs and to add incremental shale-gas production in existing reservoirs.
2009-12-20