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

Abstract

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.

Inventors:
;
Issue Date:
Research Org.:
Aerodyne Research, Inc., Billerica, MA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1415454
Patent Number(s):
9857267
Application Number:
15/350,925
Assignee:
Aerodyne Research, Inc. (Billerica, MA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G01 - MEASURING G01M - TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES
DOE Contract Number:  
SC0013132
Resource Type:
Patent
Resource Relation:
Patent File Date: 2016 Nov 14
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 54 ENVIRONMENTAL SCIENCES

Citation Formats

Nelson, Jr., David D., and Herndon, Scott C. Methods and apparatus for measuring small leaks from carbon dioxide sequestration facilities. United States: N. p., 2018. Web.
Nelson, Jr., David D., & Herndon, Scott C. Methods and apparatus for measuring small leaks from carbon dioxide sequestration facilities. United States.
Nelson, Jr., David D., and Herndon, Scott C. Tue . "Methods and apparatus for measuring small leaks from carbon dioxide sequestration facilities". United States. https://www.osti.gov/servlets/purl/1415454.
@article{osti_1415454,
title = {Methods and apparatus for measuring small leaks from carbon dioxide sequestration facilities},
author = {Nelson, Jr., David D. and Herndon, Scott C.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {1}
}

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