Cargando…

A systematic investigation of the relationship between properties of bulk foam and foam in porous media

Bulk foam analysis (static test) is simple and fast, which makes it a cost-effective method for screening and ranking hundreds of surfactants being considered for foam applications. Coreflood tests (dynamic test) can also be used, but it is quite laborious and costly. However, previous reports show...

Descripción completa

Detalles Bibliográficos
Autores principales: Adebayo, Abdulrauf R., Badmus, Suaibu O., Sakthivel, Sivabalan, Rezk, Mohamed Gamal, Babu, Rahul S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10192305/
https://www.ncbi.nlm.nih.gov/pubmed/37198400
http://dx.doi.org/10.1038/s41598-023-35278-2
_version_ 1785043600618291200
author Adebayo, Abdulrauf R.
Badmus, Suaibu O.
Sakthivel, Sivabalan
Rezk, Mohamed Gamal
Babu, Rahul S.
author_facet Adebayo, Abdulrauf R.
Badmus, Suaibu O.
Sakthivel, Sivabalan
Rezk, Mohamed Gamal
Babu, Rahul S.
author_sort Adebayo, Abdulrauf R.
collection PubMed
description Bulk foam analysis (static test) is simple and fast, which makes it a cost-effective method for screening and ranking hundreds of surfactants being considered for foam applications. Coreflood tests (dynamic test) can also be used, but it is quite laborious and costly. However, previous reports show that ranking based on static tests sometimes differs from ranking based on dynamic tests. To date, the reason for such a discrepancy is not well understood. Some believe that it may be due to faulty experimental design while some others believe that there is no discrepancy if the right foam performance indices are used to describe and compare the results from both methods. For the first time, this study reports a systematic series of static tests conducted on different foaming solutions (with surfactant concentration ranging from 0.025 to 5 wt%) and duplicated in dynamic tests using the same core sample for all the surfactant solutions. The dynamic test was also repeated on three different rocks of a wide permeability range (26–5000 mD) for each of the surfactant solutions. Unlike previous studies, here multiple dynamic foam indices (limiting capillary pressure, apparent viscosity, trapped foam, and trapped to mobile foam ratio) were measured and compared with the performance indices measured from the static tests (foam texture and foam half-life). Dynamic tests were in total agreement with static tests for all the foam formulations. However, it was observed that the pore size of the base filter disk used in the static foam analyzer can be a potential source of conflicting results when comparing with dynamic test. This is because a threshold pore size exists above which some foam properties (apparent viscosity and trapped foam) significantly decreased compared to the properties before that threshold. Foam limiting capillary pressure is the only foam property that does not show such a trend. It also appears that such threshold occurs above a certain surfactant concentration (0.025 wt%). Apparently, it becomes imperative that the pore size of the filter disk used in the static test and the porous medium used in dynamic tests must be on the same side of the threshold point, otherwise there may be disparity in their results. The threshold surfactant concentration should also be determined. The role of these two factors (pore size and surfactant concentration) requires further investigation.
format Online
Article
Text
id pubmed-10192305
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-101923052023-05-19 A systematic investigation of the relationship between properties of bulk foam and foam in porous media Adebayo, Abdulrauf R. Badmus, Suaibu O. Sakthivel, Sivabalan Rezk, Mohamed Gamal Babu, Rahul S. Sci Rep Article Bulk foam analysis (static test) is simple and fast, which makes it a cost-effective method for screening and ranking hundreds of surfactants being considered for foam applications. Coreflood tests (dynamic test) can also be used, but it is quite laborious and costly. However, previous reports show that ranking based on static tests sometimes differs from ranking based on dynamic tests. To date, the reason for such a discrepancy is not well understood. Some believe that it may be due to faulty experimental design while some others believe that there is no discrepancy if the right foam performance indices are used to describe and compare the results from both methods. For the first time, this study reports a systematic series of static tests conducted on different foaming solutions (with surfactant concentration ranging from 0.025 to 5 wt%) and duplicated in dynamic tests using the same core sample for all the surfactant solutions. The dynamic test was also repeated on three different rocks of a wide permeability range (26–5000 mD) for each of the surfactant solutions. Unlike previous studies, here multiple dynamic foam indices (limiting capillary pressure, apparent viscosity, trapped foam, and trapped to mobile foam ratio) were measured and compared with the performance indices measured from the static tests (foam texture and foam half-life). Dynamic tests were in total agreement with static tests for all the foam formulations. However, it was observed that the pore size of the base filter disk used in the static foam analyzer can be a potential source of conflicting results when comparing with dynamic test. This is because a threshold pore size exists above which some foam properties (apparent viscosity and trapped foam) significantly decreased compared to the properties before that threshold. Foam limiting capillary pressure is the only foam property that does not show such a trend. It also appears that such threshold occurs above a certain surfactant concentration (0.025 wt%). Apparently, it becomes imperative that the pore size of the filter disk used in the static test and the porous medium used in dynamic tests must be on the same side of the threshold point, otherwise there may be disparity in their results. The threshold surfactant concentration should also be determined. The role of these two factors (pore size and surfactant concentration) requires further investigation. Nature Publishing Group UK 2023-05-17 /pmc/articles/PMC10192305/ /pubmed/37198400 http://dx.doi.org/10.1038/s41598-023-35278-2 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Adebayo, Abdulrauf R.
Badmus, Suaibu O.
Sakthivel, Sivabalan
Rezk, Mohamed Gamal
Babu, Rahul S.
A systematic investigation of the relationship between properties of bulk foam and foam in porous media
title A systematic investigation of the relationship between properties of bulk foam and foam in porous media
title_full A systematic investigation of the relationship between properties of bulk foam and foam in porous media
title_fullStr A systematic investigation of the relationship between properties of bulk foam and foam in porous media
title_full_unstemmed A systematic investigation of the relationship between properties of bulk foam and foam in porous media
title_short A systematic investigation of the relationship between properties of bulk foam and foam in porous media
title_sort systematic investigation of the relationship between properties of bulk foam and foam in porous media
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10192305/
https://www.ncbi.nlm.nih.gov/pubmed/37198400
http://dx.doi.org/10.1038/s41598-023-35278-2
work_keys_str_mv AT adebayoabdulraufr asystematicinvestigationoftherelationshipbetweenpropertiesofbulkfoamandfoaminporousmedia
AT badmussuaibuo asystematicinvestigationoftherelationshipbetweenpropertiesofbulkfoamandfoaminporousmedia
AT sakthivelsivabalan asystematicinvestigationoftherelationshipbetweenpropertiesofbulkfoamandfoaminporousmedia
AT rezkmohamedgamal asystematicinvestigationoftherelationshipbetweenpropertiesofbulkfoamandfoaminporousmedia
AT baburahuls asystematicinvestigationoftherelationshipbetweenpropertiesofbulkfoamandfoaminporousmedia
AT adebayoabdulraufr systematicinvestigationoftherelationshipbetweenpropertiesofbulkfoamandfoaminporousmedia
AT badmussuaibuo systematicinvestigationoftherelationshipbetweenpropertiesofbulkfoamandfoaminporousmedia
AT sakthivelsivabalan systematicinvestigationoftherelationshipbetweenpropertiesofbulkfoamandfoaminporousmedia
AT rezkmohamedgamal systematicinvestigationoftherelationshipbetweenpropertiesofbulkfoamandfoaminporousmedia
AT baburahuls systematicinvestigationoftherelationshipbetweenpropertiesofbulkfoamandfoaminporousmedia