Unconventional Appalachian gas a key target for Cabot

For more than 100 years, Cabot Oil & Gas Corp., Houston, has been drilling natural gas wells in Appalachia, where conventional gas sands have long been depleted. As a result, the Appalachia basin now is dominated by tight gas sands "that need to be fracture-stimulated in all cases," said Michael B. Walen, senior vice-president of exploration and production.Fifty years ago, Cabot didn't have modern fracturing techniques."People would shoot the wells with nitroglycerin in the best attempt to get a good stimulation of these tight sands," Walen said.Today, he said, "It's one of our core areas, and we have a relatively large operation up there with over 2,400 wells. This past year, we ...

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