Wettability Contrasts in Kaolinite and Illite Clays: Characterization by Infrared and X-Ray Absorption Spectroscopies

Bantigniès, Jean-Louis

doi:10.1346/ccmn.1997.0450206

Cited by 69 publications

(50 citation statements)

References 43 publications

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“…On the contrary with kaolin, which has a higher affinity for oil, the hydrophobicity persisted even when exposed to water (compare Figures 4a and 4b). The present observations are in line with previous findings [Bantignies et al, 1997;Cosultchi et al, 2005; H. G. Rueslåtten et al, A combined use of CRYO-SEM and NMR-spectroscopy for studying the distribution of oil an brine in sandstones, paper presented at SPE/DOE 27804 IOR Symposium, Society of Petroleum Engineers, Tulsa, Oklahoma, 17-20 April 1994].…”

Section: Liquid-liquid Extractionsupporting

confidence: 92%

Experimental investigations of the wettability of clays and shales

et al. 2009

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[1] Wettability in argillaceous materials is poorly understood, yet it is critical to hydrocarbon recovery in clay-rich reservoirs and capillary seal capacity in both caprocks and fault gouges. The hydrophobic or hydrophilic nature of clay-bearing soils and sediments also controls to a large degree the movement of spilled nonaqueous phase liquids in the subsurface and the options available for remediation of these pollutants. In this paper the wettability of hydrocarbons contacting shales in their natural state and the tendencies for wettability alteration were examined. Water-wet, oil-wet, and mixed-wet shales from wells in Australia were investigated and were compared with simplified model shales (single and mixed minerals) artificially treated in crude oil. The intact natural shale samples (preserved with their original water content) were characterized petrophysically by dielectric spectroscopy and nuclear magnetic resonance, plus scanning electron, optical and fluorescence microscopy. Wettability alteration was studied using spontaneous imbibition, pigment extraction, and the sessile drop method for contact angle measurement. The mineralogy and chemical compositions of the shales were determined by standard methods. By studying pure minerals and natural shales in parallel, a correlation between the petrophysical properties, and wetting behavior was observed. These correlations may potentially be used to assess wettability in downhole measurements.

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Section: Liquid-liquid Extractionsupporting

confidence: 92%

Experimental investigations of the wettability of clays and shales

et al. 2009

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“…Illites, smectites, illite-smectites mixed layers and kaolinites are amongst the most abundant types of clay mineral found within sandstone reservoirs, 5 and whilst illites and smectites are generally considered as water-wetting, kaolinite is considered to be oilwetting. 4 Figure 1: Electron scanning microscope image (left) of a sandstone core presenting a composition of large quartz grains (silver), pore water (blue) and clay minerals between quartz grains (grey and brown). Atomic force microscope image of kaolinite grains stacked upon each other (center), and the atomic structure of a single kaolinite layer (right).…”

Section: Kaolinite Structure and Propertiesmentioning

confidence: 99%

Wetting Effects and Molecular Adsorption at Hydrated Kaolinite Clay Mineral Surfaces

2016

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. (2016) 'Wetting e ects and molecular adsorption at hydrated kaolinite clay mineral surfaces.', Journal of physical chemistry C., 120 (21). pp. 11433-11449. Further information on publisher's website:https://doi.org/10.1021/acs.jpcc.6b00187 Publisher's copyright statement: This document is the Accepted Manuscript version of a Published Work that appeared in nal form in The Journal of Physical Chemistry C, copyright c American Chemical Society after peer review and technical editing by the publisher. To access the nal edited and published work see https://doi.org/10.1021/acs.jpcc.6b00187. Additional information:Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. do not adsorb to the silicate surface, yet adsorb to the hydroxyl surface through an anion exchange mechanism. Decanamine readily adsorbs to both silicate and hydroxyl surfaces, though the hydroxyl-amine interactions are mediated through water bridges.Once charged, the decanamine remains adsorbed to both surfaces, however, both interactions are ionically mediated, rather than through van der Waals and hydrogen bonds.Furthermore, protonated decanamine is observed to adsorb to the hydroxyl surface via anion bridges, a phenomenon that is typically associated with positively charged layered double hydroxides rather than negatively charged clay minerals.2

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“…Owing to the characteristic surface properties and a strong affinity for organic compounds, kaolinite plays a key role from petroleum accumulation in the sedimentary rocks to the wettability alteration in the oil reservoir (Bantignies et al 1997, van Duin and Larter 2001, Lebedeva and Fogden 2011.…”

Section: Accepted Manuscriptmentioning

confidence: 99%