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The U‐tube: A novel system for acquiring borehole fluid samples from a deep geologic CO2 sequestration experiment
Open accessAbstract
A novel system has been deployed to obtain geochemical samples of water and gas, at in situ pressure, during a geologic CO 2 sequestration experiment conducted in the Frio brine aquifer in Liberty County, Texas. Project goals required high‐frequency recovery of representative and uncontaminated aliquots of a rapidly changing two‐phase fluid (supercritical CO 2 and brine) fluid from 1.5 km depth. The data sets collected, using both the liquid and gas portions of the downhole samples, provide insights into the coupled hydrogeochemical issues affecting CO 2 sequestration in brine‐filled formations. While the basic premise underlying the U‐tube sampler is not new, the system is unique because careful consideration was given to the processing of the recovered two‐phase fluids. In particular, strain gauges mounted beneath the high‐pressure surface sample cylinders measured the ratio of recovered brine to supercritical CO 2. A quadrupole mass spectrometer provided real‐time gas analysis for perfluorocarbon and noble gas tracers that were injected along with the CO 2. The U‐tube successfully acquired frequent samples, facilitating accurate delineation of the arrival of the CO 2 plume, and on‐site analysis revealed rapid changes in geochemical conditions.
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Cited by
An Overview of the Status and Challenges of CO2 Storage in Minerals and Geological Formations
Kelemen, P., Benson, S. M., Pilorgé, H., Psarras, P., & Wilcox, J. (2019) · Frontiers in Climate · doi:10.3389/fclim.2019.00009 · Cited by 587
“…Romanak et al., 2012; Yang et al., 2013; Anderson et al., 2017), from analyses of pressurized samples representative of the subsurface conditions (Freifeld et al., 2005), and from tracers that help track waters containing dissolved CO2 (Kharaka et al., 2009; Ringrose et al., 2009; Würdemann et…”
BackgroundXu, T., Spycher, N., Sonnenthal, E., Zhang, G., Zheng, L., & Pruess, K. (2011) · Computers & Geosciences · doi:10.1016/j.cageo.2010.10.007 · Cited by 417
Measuring permanence of CO2 storage in saline formations: the Frio experiment
Hovorka, S. D., Benson, S. M., Doughty, C., Freifeld, B. M., Sakurai, S., Daley, T. M., Kharaka, Y. K., Holtz, M. H., Trautz, R. C., Nance, H. S., et al. (2006) · Environmental Geosciences · doi:10.1306/eg.11210505011 · Cited by 344
Self-citationSafe storage and effective monitoring of CO 2 in depleted gas fields
Jenkins, C. R., Cook, P. J., Ennis-King, J., Undershultz, J., Boreham, C., Dance, T., de Caritat, P., Etheridge, D. M., Freifeld, B. M., Hortle, A., et al. (2012) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1107255108 · Cited by 296
Self-citationThe state of the art in monitoring and verification - ten years on
Jenkins, C., Chadwick, A., & Hovorka, S. D. (2015) · International Journal of Greenhouse Gas Control · doi:10.1016/j.ijggc.2015.05.009 · Cited by 240
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Metadata
- Authors
- Freifeld, B. M., Trautz, R. C., Kharaka, Y. K., Phelps, T. J., Myer, L. R., Hovorka, S. D., & Collins, D. J.
- Venue
- Journal of Geophysical Research: Solid Earth
- Publisher
- American Geophysical Union (AGU)
- Published
- 2005-10
- Volume
- 110
- Issue
- B10
- ISSN
- 0148-0227 (ISSN-L)
- OpenAlex
- W1992671779
- Cited by
- 173
- References
- 0
- FWCI
- 8.55
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Freifeld, B. M., Trautz, R. C., Kharaka, Y. K., Phelps, T. J., Myer, L. R., Hovorka, S. D., & Collins, D. J. (2005). The U‐tube: A novel system for acquiring borehole fluid samples from a deep geologic CO2 sequestration experiment. Journal of Geophysical Research: Solid Earth. https://doi.org/10.1029/2005jb003735
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