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Method of detecting leakage from geologic formations used to sequester CO.sub.2

Patent ·
OSTI ID:985247
The invention provides methods for the measurement of carbon dioxide leakage from sequestration reservoirs. Tracer moieties are injected along with carbon dioxide into geological formations. Leakage is monitored by gas chromatographic analyses of absorbents. The invention also provides a process for the early leak detection of possible carbon dioxide leakage from sequestration reservoirs by measuring methane (CH.sub.4), ethane (C.sub.2H.sub.6), propane (C.sub.3H.sub.8), and/or radon (Rn) leakage rates from the reservoirs. The invention further provides a method for branding sequestered carbon dioxide using perfluorcarbon tracers (PFTs) to show ownership.
Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Organization:
USDOE
Assignee:
The United States of America as represented by the United States Department of Energy (Washington, DC)
Patent Number(s):
7,704,746
Application Number:
12/351,348
OSTI ID:
985247
Country of Publication:
United States
Language:
English

References (2)


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