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Radon-222 content of natural gas samples from Upper and Middle Devonian sandstone and shale reservoirs in Pennsylvania—preliminary data

Open-File Report 2012-1159

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Abstract

Samples of natural gas were collected as part of a study of formation water chemistry in oil and gas reservoirs in the Appalachian Basin. Nineteen samples (plus two duplicates) were collected from 11 wells producing gas from Upper Devonian sandstones and the Middle Devonian Marcellus Shale in Pennsylvania. The samples were collected from valves located between the wellhead and the gas-water separator. Analyses of the radon content of the gas indicated 222Rn (radon-222) activities ranging from 1 to 79 picocuries per liter (pCi/L) with an overall median of 37 pCi/L. The radon activities of the Upper Devonian sandstone samples overlap to a large degree with the activities of the Marcellus Shale samples.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Radon-222 content of natural gas samples from Upper and Middle Devonian sandstone and shale reservoirs in Pennsylvania—preliminary data
Series title:
Open-File Report
Series number:
2012-1159
Year Published:
2012
Language:
Englsih
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Eastern Energy Resources Science Center
Description:
iii, 6 p.
First page:
i
Last page:
6
Number of Pages:
9
Country:
United States
State:
Pennsylvania
Online Only (Y/N):
Y
Additional Online Files(Y/N):
N