Assessment of undiscovered oil and gas resources of the Devonian Marcellus Shale of the Appalachian Basin Province

Coleman, James L.; Milici, Robert C.; Cook, Troy A.; Charpentier, Ronald R.; Kirshbaum, Mark; Klett, Timothy R.; Pollastro, Richard M.; Schenk, Christopher J.

doi:10.3133/fs20113092

Cited by 57 publications

(38 citation statements)

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“…this study operated intermittently, which differs from most other established users that withdraw steadily for at least a portion of the year. Furthermore, the shale gas industry's water use often occurs in undeveloped watersheds and is expected to increase over time due to large estimated quantities of recoverable natural gas resources in the shale layers underlying 85% of the Basin (Figure 1) (Coleman et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Land use and surface water withdrawal effects on fish and macroinvertebrate assemblages in the Susquehanna River basin, USA

Shank

Stauffer

2014

Journal of Freshwater Ecology

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Water withdrawals in the Susquehanna River basin, USA, are increasing due to burgeoning shale gas extraction activities. In order to determine if flow alteration resulting from shale gas industry surface water withdrawals impacts fish and macroinvertebrate assemblages in lotic habitats, data were collected upstream and downstream of 12 withdrawal and three reference sites in headwater, cold water, and large warm water streams. Watershed size ranged from 4 to 517 km 2 and average daily withdrawals ranged from 0.05 to 1.4 million liters. Analysis of withdrawal data indicated that approved withdrawals far exceeded actual withdrawals across all stream types. The largest withdrawals relative to stream size were from headwater streams, where on average 6.8% of average daily flow was withdrawn daily. Fish and macroinvertebrate assemblage similarity at study sites depended largely on stream sampled, rather than position upstream or downstream of withdrawals. Regression techniques were employed to determine if catchment-level variables or withdrawal metrics best described variation in fish and macroinvertebrate metrics shown to be sensitive to flow alteration. The catchment-level variables were responsible for the majority of observed variation in fish metrics. Macroinvertebrate models performed poorly, indicating that the stream sampled or variables not included in the analyses were responsible for the majority of variation. Overall, evidence suggests impacts of shale gas withdrawals within the Susquehanna basin are limited at the present state of flow alteration. Potential reasons include protective measures such as pass-by flow restrictions, which require withdrawals to cease when flows drop below a predetermined low flow threshold, maximum instantaneous and daily withdrawal limits, and recent initiation of withdrawals (1À3 years of operation).

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Section: Introductionmentioning

confidence: 99%

Land use and surface water withdrawal effects on fish and macroinvertebrate assemblages in the Susquehanna River basin, USA

Shank

Stauffer

2014

Journal of Freshwater Ecology

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“…Our analysis was limited to the interior Marcellus shale unit (Fig. 1), which is expected to be the most recoverable gas within the play (Coleman et al, 2011;Evans and Kiesecker, 2014). First, we used three characteristics of the shale play (thickness, maturity, and depth; Evans and Kiesecker, 2014) to generate the probability of development for each 1 km gridcell within the Marcellus play boundary (maximum value at thickest, most mature, least depth to shale).…”

Section: Mapping Natural Gas Developmentmentioning

confidence: 99%

Potential reduction in terrestrial salamander ranges associated with Marcellus shale development

Brand

Wiewel

Grant

2014

Biological Conservation

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“…U.S. government numbers for Marcellus Shale recoverable gas from the U.S. Energy Information Administration (EIA) are about 410 TCF (EIA, 2011). A recent Marcellus Shale assessment by the USGS (Coleman, 2011) has concluded that the median amount of technically recoverable gas from this formation is about 84 TCF, and it may go as high as 144 TCF, but this is still quite conservative compared to some of the other numbers out there. The EIA recently reduced their estimates to be more in line with the high end numbers from the USGS.…”

Section: Trap and Sealmentioning

confidence: 99%

Shale Gas Development in the United States

Soeder¹

2012

Advances in Natural Gas Technology

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Assessment of undiscovered oil and gas resources of the Devonian Marcellus Shale of the Appalachian Basin Province

Cited by 57 publications

References 0 publications

Land use and surface water withdrawal effects on fish and macroinvertebrate assemblages in the Susquehanna River basin, USA

Land use and surface water withdrawal effects on fish and macroinvertebrate assemblages in the Susquehanna River basin, USA

Potential reduction in terrestrial salamander ranges associated with Marcellus shale development

Shale Gas Development in the United States

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