Wettability measurement under high P-T conditions using X-ray imaging with application to the brine-supercritical CO2 system
Abstract
We present a new method for measuring wettability or contact angle of minerals at reservoir pressure-temperature conditions using high-resolution X-ray computed tomography (HRXCT) and radiography. In this method, a capillary or a narrow slot is constructed from a mineral or a rock sample of interest wherein two fluids are allowed to form an interface that is imaged using X-rays. After some validation measurements at room pressure-temperature conditions, we illustrate this method by measuring the contact angle of CO2-brine on quartz, muscovite, shale, borosilicate glass, polytetrafluoroethylene (PTFE or Teflon), and polyether ether ketone (PEEK) surfaces at 60–71°C and 13.8–22.8 MPa. At reservoir conditions, PTFE and PEEK surfaces were found to be CO2-wet with contact angles of 140° and 127°, respectively. Quartz and muscovite were found to be water-wet with contact angles of 26° and 58°, respectively, under similar conditions. Borosilicate glass-air-brine at room conditions showed strong water-wet characteristics with a contact angle of 9°, whereas borosilicate glass-CO2-brine at 13.8 MPa and 60°C showed a decrease in its water-wetness with contact angle of 54°. This method provides a new application for X-ray imaging and an alternative to other methods.
- Authors:
-
- Univ. of Texas, Austin, TX (United States). Geological Sciences; ConocoPhillips, Houston, TX (United States). Geosciences and Reservoir Engineering Technology
- Univ. of Texas, Austin, TX (United States). Geological Sciences
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC), Washington D.C. (United States). Center for Frontiers of Subsurface Energy Security (CFSES)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1370722
- Grant/Contract Number:
- SC0001114
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Geochemistry, Geophysics, Geosystems
- Additional Journal Information:
- Journal Volume: 16; Journal Issue: 9; Related Information: CFSES partners with University of Texas at Austin (lead); Sandia National Laboratory; Journal ID: ISSN 1525-2027
- Publisher:
- American Geophysical Union
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 58 GEOSCIENCES; nuclear (including radiation effects); carbon sequestration; wettability; contact angle; X-ray imaging; radiograph; X-ray computed tomography; supercritical CO2
Citation Formats
Chaudhary, Kuldeep, Guiltinan, Eric J., Cardenas, M. Bayani, Maisano, Jessica A., Ketcham, Richard A., and Bennett, Philip C. Wettability measurement under high P-T conditions using X-ray imaging with application to the brine-supercritical CO2 system. United States: N. p., 2015.
Web. doi:10.1002/2015GC005936.
Chaudhary, Kuldeep, Guiltinan, Eric J., Cardenas, M. Bayani, Maisano, Jessica A., Ketcham, Richard A., & Bennett, Philip C. Wettability measurement under high P-T conditions using X-ray imaging with application to the brine-supercritical CO2 system. United States. https://doi.org/10.1002/2015GC005936
Chaudhary, Kuldeep, Guiltinan, Eric J., Cardenas, M. Bayani, Maisano, Jessica A., Ketcham, Richard A., and Bennett, Philip C. Thu .
"Wettability measurement under high P-T conditions using X-ray imaging with application to the brine-supercritical CO2 system". United States. https://doi.org/10.1002/2015GC005936. https://www.osti.gov/servlets/purl/1370722.
@article{osti_1370722,
title = {Wettability measurement under high P-T conditions using X-ray imaging with application to the brine-supercritical CO2 system},
author = {Chaudhary, Kuldeep and Guiltinan, Eric J. and Cardenas, M. Bayani and Maisano, Jessica A. and Ketcham, Richard A. and Bennett, Philip C.},
abstractNote = {We present a new method for measuring wettability or contact angle of minerals at reservoir pressure-temperature conditions using high-resolution X-ray computed tomography (HRXCT) and radiography. In this method, a capillary or a narrow slot is constructed from a mineral or a rock sample of interest wherein two fluids are allowed to form an interface that is imaged using X-rays. After some validation measurements at room pressure-temperature conditions, we illustrate this method by measuring the contact angle of CO2-brine on quartz, muscovite, shale, borosilicate glass, polytetrafluoroethylene (PTFE or Teflon), and polyether ether ketone (PEEK) surfaces at 60–71°C and 13.8–22.8 MPa. At reservoir conditions, PTFE and PEEK surfaces were found to be CO2-wet with contact angles of 140° and 127°, respectively. Quartz and muscovite were found to be water-wet with contact angles of 26° and 58°, respectively, under similar conditions. Borosilicate glass-air-brine at room conditions showed strong water-wet characteristics with a contact angle of 9°, whereas borosilicate glass-CO2-brine at 13.8 MPa and 60°C showed a decrease in its water-wetness with contact angle of 54°. This method provides a new application for X-ray imaging and an alternative to other methods.},
doi = {10.1002/2015GC005936},
journal = {Geochemistry, Geophysics, Geosystems},
number = 9,
volume = 16,
place = {United States},
year = {Thu Aug 06 00:00:00 EDT 2015},
month = {Thu Aug 06 00:00:00 EDT 2015}
}
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Works referencing / citing this record:
Wetting Behavior of Tight Rocks: From Core Scale to Pore Scale
journal, November 2018
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- Water Resources Research, Vol. 54, Issue 11