SAN JUAN BASIN REVISITED

摘要

The San Juan Basin, a circular and nearly bowl-shaped depression straddling northwestern New Mexico and southwestern Colorado, is one of the most prolific gas-producing regions in the U.S.It contains the nation's largest natural gas field, based on 2007 proved reserves, in more than 26,000 square miles of sedimentary rock more than two and a half miles thick in places, ranging in age from about 570 to 2 million years. New Mexico contributes about 70% of the gas production of the basin, where typical well depths range from 2,000 to more than 7,500 feet.