New York Looks to Old Natural Gas Wells for Sequestration
Under the auspices of a new $4 million, 3-year program organized by New York's Energy Research and Development Authority and several energy companies, geologists from the State Museum will spend the upcoming summer studying old natural gas wells and other features in the Southern Tier and in western N.Y. as potential sites for carbon sequestration. The energy companies - which include AES Eastern Energy and Nornew - will contribute $2.3 million towards the effort.
The geologists will study sandstone, limestone and shale formations, which provide the best storage potential for carbon dioxide, using seismic equipment; their target will be "from 2,500 feet to 10,000 feet underground," according to John Martin, a senior project manager. They hope to identify areas of fractured limestone or sandstone - ideal sites for holding carbon dioxide - in the process of constructing a 3-D underground map of the regions. According to the DOE's latest estimates, the country's underground saline formations may be able to store up to 500 billion tons of CO2; it hopes to lower the cost of storage to less than $10 per ton by 2015.
Via ::The Times Union: State seeks deep sites to hold greenhouse gas (newspaper)