Marcellus Shale - 10 of 16
Marcellus Shale FAQs - 16 Found
In 2002 the USGS assessed an estimated undiscovered, technically recoverable mean volume of 2 trillion cubic feet of gas (TCFG) for the Marcellus shale using geologic and production data available in 2002. In 2011, the USGS assessed an estimated undiscovered, technically recoverable mean volume of 84 TCFG using geologic and production data available in 2011. The area for both assessments was essentially the same; however, the 2011 assessment area was slightly larger. In conducting the 2011 assessment, the USGS examined the results of the 2008 application of new drilling and completion technology, in the form of horizontal drilling and massive hydraulic fracture stimulation, to the Marcellus and concluded that this innovation would result in higher volumes of technically recoverable natural gas and natural gas liquids. The USGS used early production results from these new technology wells to estimate a higher undiscovered resource volume for the Marcellus shale.