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Title: Methods and apparatus for measuring small leaks from carbon dioxide sequestration facilities

Patent ·
OSTI ID:1415454
;

In one embodiment, a CO.sub.2 leak detection instrument detects leaks from a site (e.g., a CO.sub.2 sequestration facility) using rapid concentration measurements of CO.sub.2, O.sub.2 and optionally water concentration that are achieved, for example, using laser spectroscopy (e.g. direct absorption laser spectroscopy). Water vapor in the sample gas may not be removed, or only partially removed. The sample gas may be collected using a multiplexed inlet assembly from a plurality of locations. CO.sub.2 and O.sub.2 concentrations may be corrected based on the water concentration. A resulting dataset of the CO.sub.2 and O.sub.2 concentrations is analyzed over time intervals to detect any changes in CO.sub.2 concentration that are not anti-correlated with O.sub.2 concentration, and to identify a potential CO.sub.2 leak in response thereto. The analysis may include determining eddy covariance flux measurements of sub-surface potential carbon.

Research Organization:
Aerodyne Research, Inc., Billerica, MA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0013132
Assignee:
Aerodyne Research, Inc. (Billerica, MA)
Patent Number(s):
9,857,267
Application Number:
15/350,925
OSTI ID:
1415454
Resource Relation:
Patent File Date: 2016 Nov 14
Country of Publication:
United States
Language:
English

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