A statistical analysis of the effects of pressure, temperature and salinity on contact angles in CO2-brine-quartz systems

D. R. Palamara; T. Neeman; A. N. Golab; A. Sheppard

doi:10.1016/j.ijggc.2015.09.007

A statistical analysis of the effects of pressure, temperature and salinity on contact angles in CO₂-brine-quartz systems

D. R. Palamara^*, T. Neeman, A. N. Golab, A. Sheppard

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

An integrative data analysis was performed using previously published contact-angle data for CO₂-brine-quartz systems. Linear mixed-effects models were used to perform exploratory analyses of the influence of pressure, temperature and salinity on contact angles for subcritical and supercritical CO₂ conditions. The results confirm that there is a large disparity in the magnitude and behaviour of contact angles between studies; accommodating this disparity through the use of a random effect suggests that changes in pressure are important mostly in the subcritical CO₂ pressure range. Brine concentration and temperature are both statistically and practically relevant to the wettability of quartz in CO₂-brine systems across both pressure regimes.

Original language	English
Pages (from-to)	516-524
Number of pages	9
Journal	International Journal of Greenhouse Gas Control
Volume	42
DOIs	https://doi.org/10.1016/j.ijggc.2015.09.007
Publication status	Published - 1 Nov 2015

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title = "A statistical analysis of the effects of pressure, temperature and salinity on contact angles in CO2-brine-quartz systems",

abstract = "An integrative data analysis was performed using previously published contact-angle data for CO2-brine-quartz systems. Linear mixed-effects models were used to perform exploratory analyses of the influence of pressure, temperature and salinity on contact angles for subcritical and supercritical CO2 conditions. The results confirm that there is a large disparity in the magnitude and behaviour of contact angles between studies; accommodating this disparity through the use of a random effect suggests that changes in pressure are important mostly in the subcritical CO2 pressure range. Brine concentration and temperature are both statistically and practically relevant to the wettability of quartz in CO2-brine systems across both pressure regimes.",

keywords = "Brine, Carbon dioxide, Geosequestration, Linear mixed-effects, Quartz, Wettability",

author = "Palamara, {D. R.} and T. Neeman and Golab, {A. N.} and A. Sheppard",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

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doi = "10.1016/j.ijggc.2015.09.007",

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T1 - A statistical analysis of the effects of pressure, temperature and salinity on contact angles in CO2-brine-quartz systems

AU - Palamara, D. R.

AU - Neeman, T.

AU - Golab, A. N.

AU - Sheppard, A.

PY - 2015/11/1

Y1 - 2015/11/1

N2 - An integrative data analysis was performed using previously published contact-angle data for CO2-brine-quartz systems. Linear mixed-effects models were used to perform exploratory analyses of the influence of pressure, temperature and salinity on contact angles for subcritical and supercritical CO2 conditions. The results confirm that there is a large disparity in the magnitude and behaviour of contact angles between studies; accommodating this disparity through the use of a random effect suggests that changes in pressure are important mostly in the subcritical CO2 pressure range. Brine concentration and temperature are both statistically and practically relevant to the wettability of quartz in CO2-brine systems across both pressure regimes.

AB - An integrative data analysis was performed using previously published contact-angle data for CO2-brine-quartz systems. Linear mixed-effects models were used to perform exploratory analyses of the influence of pressure, temperature and salinity on contact angles for subcritical and supercritical CO2 conditions. The results confirm that there is a large disparity in the magnitude and behaviour of contact angles between studies; accommodating this disparity through the use of a random effect suggests that changes in pressure are important mostly in the subcritical CO2 pressure range. Brine concentration and temperature are both statistically and practically relevant to the wettability of quartz in CO2-brine systems across both pressure regimes.

KW - Brine

KW - Carbon dioxide

KW - Geosequestration

KW - Linear mixed-effects

KW - Quartz

KW - Wettability

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U2 - 10.1016/j.ijggc.2015.09.007

DO - 10.1016/j.ijggc.2015.09.007

M3 - Article

SN - 1750-5836

VL - 42

SP - 516

EP - 524

JO - International Journal of Greenhouse Gas Control

JF - International Journal of Greenhouse Gas Control

ER -

A statistical analysis of the effects of pressure, temperature and salinity on contact angles in CO₂-brine-quartz systems

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