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HARRISBURG Depleted oil and gas wells, unmineable coal beds and salt caverns in northcentral and western Pennsylvania are likely candidates to store carbon dioxide emissions, a key step in developing clean coal technology, according to a new state report.
The report by the Department of Conservation and Natural Resources provides a fuller picture of how Pennsylvania would develop a carbon sequestration system to curb greenhouse gas emissions, and thus make coal less polluting.
Western Pennsylvania is considered a primary location for storage because 150 years of drilling for oil and natural gas there have yielded a lot of data about deep subsurface rock formations. Records are available for over 600,000 wells.
By contrast, only 170 natural gas wells have been drilled so far in central and eastern Pennsylvania, so reliable data is scarce.
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