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The Marcellus natural gas trend is a large geographic area of prolific shale gas extraction from the Marcellus Shale or Marcellus Formation, of Devonian age, in the eastern United States. [2] The shale play encompasses 104,000 square miles and stretches across Pennsylvania and West Virginia, and into eastern Ohio and western New York. [ 3 ]
The Marcellus Formation or the Marcellus Shale is a Middle Devonian age unit of sedimentary rock found in eastern North America. Named for a distinctive outcrop near the village of Marcellus , New York , in the United States , [ 3 ] it extends throughout much of the Appalachian Basin .
Derrick and platform of drilling gas wells in Marcellus Shale – Pennsylvania. Shale gas was first extracted as a resource in Fredonia, New York, in 1821, [16] [17] in shallow, low-pressure fractures. Horizontal drilling began in the 1930s, and in 1947 a well was first fracked in the U.S. [3]
Chief began drilling in the Marcellus Formation in 2007. [5] In August 2008, the company sold assets to Quicksilver Resources. [6] In September 2009, the company entered into a joint venture with Enerplus for development in the Marcellus. By that time, the company had drilled 31 wells in the formation. [5]
In 2010, Forbes called the company "King of the Marcellus Shale".The company had spent less than $1,000 per acre on average to acquire land suitable for drilling, compared to larger traditional oil and gas players who joined the exploration rush late in the game who had paid as much as $14,000 an acre. [6]
US shale gas basins, 2011. Shale gas in the United States is an available source of unconventional natural gas.Led by new applications of hydraulic fracturing technology and horizontal drilling, development of new sources of shale gas has offset declines in production from conventional gas reservoirs, and has led to major increases in reserves of U.S. natural gas.
Fox is particularly troubled by what he learns because there are plans to begin drilling for natural gas in the portion of the Marcellus Shale formation that overlaps with the New York City Watershed and the Delaware River Basin, which together provide unfiltered drinking water to 15.6 million people in New York City, Pennsylvania, New Jersey ...
Part of the Devonian Shale is the Marcellus Shale, which alone is estimated to hold between 168 trillion and 516 trillion cubic feet of natural gas. [21] Recent technological advances have made the recovery of these reserves possible, and the state has experienced a boom in drilling. [22]