Marcellus shale

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Revision as of 18:44, 13 September 2008 Tcopley (Talk | contribs) (The '''Marcellus shale''' formation is a layer of black shale rock) ← Previous diff		Revision as of 19:58, 13 September 2008 Tcopley (Talk | contribs) (formation is a layer of black shale rock) Next diff →
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	The '''Marcellus shale''' formation is a layer of black shale rock found deep underground in an area stretching from the State of New York down to West Virginia.		The '''Marcellus shale''' formation is a layer of black shale rock found deep underground in an area stretching from the State of New York down to West Virginia.
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		+	It has been known for decades that this layer contained gas, but until recently it was not believed economical to extract it. Recent changes in technology such as horizontal drilling and hydro-fracturing the shale have changed the economics somewhat. When that is combined with recent high prices for natural gas, it makes the endeavor profitable for the participants.
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		+	Recent estimates indicate that there are 50 trillion cubic feet of recoverable natural gas. This is twice the amount consumed during 2007 in the U.S.

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Revision as of 19:58, 13 September 2008

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The Marcellus shale formation is a layer of black shale rock found deep underground in an area stretching from the State of New York down to West Virginia.

It has been known for decades that this layer contained gas, but until recently it was not believed economical to extract it. Recent changes in technology such as horizontal drilling and hydro-fracturing the shale have changed the economics somewhat. When that is combined with recent high prices for natural gas, it makes the endeavor profitable for the participants.

Recent estimates indicate that there are 50 trillion cubic feet of recoverable natural gas. This is twice the amount consumed during 2007 in the U.S.