Shale adhesion force measurements via atomic force microscopy

Wettability of sedimentary rock surface is an essential parameter that defines oil recovery and production rates of a reservoir. The discovery of wettability alteration in reservoirs, as well as complications that occur in analysis of heterogeneous sample, such as shale, for instance, have prompted...

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Autores principales:	Mitiurev Nikolai, Verrall Michael, Shilobreeva Svetlana, Keshavarz Alireza, Iglauer Stefan
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Chemical technology TP1-1185 Energy industries. Energy policy. Fuel trade HD9502-9502.5
Acceso en línea:	https://doaj.org/article/481ef472d83c4564afe5cfbefd6f77cf
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spelling	oai:doaj.org-article:481ef472d83c4564afe5cfbefd6f77cf2021-12-02T17:15:04ZShale adhesion force measurements via atomic force microscopy1294-44751953-818910.2516/ogst/2021057https://doaj.org/article/481ef472d83c4564afe5cfbefd6f77cf2021-01-01T00:00:00Zhttps://ogst.ifpenergiesnouvelles.fr/articles/ogst/full_html/2021/01/ogst210153/ogst210153.htmlhttps://doaj.org/toc/1294-4475https://doaj.org/toc/1953-8189Wettability of sedimentary rock surface is an essential parameter that defines oil recovery and production rates of a reservoir. The discovery of wettability alteration in reservoirs, as well as complications that occur in analysis of heterogeneous sample, such as shale, for instance, have prompted scientists to look for the methods of wettability assessment at nanoscale. At the same time, bulk techniques, which are commonly applied, such as USBM (United States Bureau of Mines) or Amott tests, are not sensitive enough in cases with mixed wettability of rocks as they provide average wettability values of a core plug. Atomic Force Microscopy (AFM) has been identified as one of the methods that allow for measurement of adhesion forces between cantilever and sample surface in an exact location at nanoscale. These adhesion forces can be used to estimate wettability locally. Current research, however, shows that the correlation is not trivial. Moreover, adhesion force measurement via AFM has not been used extensively in studies with geological samples yet. In this study, the adhesion force values of the cantilever tip interaction with quartz inclusion on the shale sample surface, have been measured using the AFM technique. The adhesion force measured in this particular case was equal to the capillary force of water meniscus, formed between the sample surface and the cantilever tip. Experiments were conducted with a SiconG cantilever with (tip radius of 5 nm). The adhesion forces between quartz grain and cantilever tip were equal to 56.5 ± 5 nN. Assuming the surface of interaction to be half spherical, the adhesion force per area was 0.36 ± 0.03 nN/nm2. These measurements and results acquired at nano-scale will thus create a path towards much higher accuracy-wettability measurements and consequently better reservoir-scale predictions and improved underground operations.Mitiurev NikolaiVerrall MichaelShilobreeva SvetlanaKeshavarz AlirezaIglauer StefanEDP SciencesarticleChemical technologyTP1-1185Energy industries. Energy policy. Fuel tradeHD9502-9502.5ENFROil & Gas Science and Technology, Vol 76, p 73 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Chemical technology TP1-1185 Energy industries. Energy policy. Fuel trade HD9502-9502.5
spellingShingle	Chemical technology TP1-1185 Energy industries. Energy policy. Fuel trade HD9502-9502.5 Mitiurev Nikolai Verrall Michael Shilobreeva Svetlana Keshavarz Alireza Iglauer Stefan Shale adhesion force measurements via atomic force microscopy
description	Wettability of sedimentary rock surface is an essential parameter that defines oil recovery and production rates of a reservoir. The discovery of wettability alteration in reservoirs, as well as complications that occur in analysis of heterogeneous sample, such as shale, for instance, have prompted scientists to look for the methods of wettability assessment at nanoscale. At the same time, bulk techniques, which are commonly applied, such as USBM (United States Bureau of Mines) or Amott tests, are not sensitive enough in cases with mixed wettability of rocks as they provide average wettability values of a core plug. Atomic Force Microscopy (AFM) has been identified as one of the methods that allow for measurement of adhesion forces between cantilever and sample surface in an exact location at nanoscale. These adhesion forces can be used to estimate wettability locally. Current research, however, shows that the correlation is not trivial. Moreover, adhesion force measurement via AFM has not been used extensively in studies with geological samples yet. In this study, the adhesion force values of the cantilever tip interaction with quartz inclusion on the shale sample surface, have been measured using the AFM technique. The adhesion force measured in this particular case was equal to the capillary force of water meniscus, formed between the sample surface and the cantilever tip. Experiments were conducted with a SiconG cantilever with (tip radius of 5 nm). The adhesion forces between quartz grain and cantilever tip were equal to 56.5 ± 5 nN. Assuming the surface of interaction to be half spherical, the adhesion force per area was 0.36 ± 0.03 nN/nm2. These measurements and results acquired at nano-scale will thus create a path towards much higher accuracy-wettability measurements and consequently better reservoir-scale predictions and improved underground operations.
format	article
author	Mitiurev Nikolai Verrall Michael Shilobreeva Svetlana Keshavarz Alireza Iglauer Stefan
author_facet	Mitiurev Nikolai Verrall Michael Shilobreeva Svetlana Keshavarz Alireza Iglauer Stefan
author_sort	Mitiurev Nikolai
title	Shale adhesion force measurements via atomic force microscopy
title_short	Shale adhesion force measurements via atomic force microscopy
title_full	Shale adhesion force measurements via atomic force microscopy
title_fullStr	Shale adhesion force measurements via atomic force microscopy
title_full_unstemmed	Shale adhesion force measurements via atomic force microscopy
title_sort	shale adhesion force measurements via atomic force microscopy
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/481ef472d83c4564afe5cfbefd6f77cf
work_keys_str_mv	AT mitiurevnikolai shaleadhesionforcemeasurementsviaatomicforcemicroscopy AT verrallmichael shaleadhesionforcemeasurementsviaatomicforcemicroscopy AT shilobreevasvetlana shaleadhesionforcemeasurementsviaatomicforcemicroscopy AT keshavarzalireza shaleadhesionforcemeasurementsviaatomicforcemicroscopy AT iglauerstefan shaleadhesionforcemeasurementsviaatomicforcemicroscopy
_version_	1718381256730738688

Shale adhesion force measurements via atomic force microscopy

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