Pore-Scale Investigation of Micron-Size Polyacrylamide Elastic Microspheres (MPEMs) Transport and Retention in Saturated Porous Media

Handle URI:
http://hdl.handle.net/10754/600234
Title:
Pore-Scale Investigation of Micron-Size Polyacrylamide Elastic Microspheres (MPEMs) Transport and Retention in Saturated Porous Media
Authors:
Yao, Chuanjin; Lei, Guanglun; Cathles, Lawrence M.; Steenhuis, Tammo S.
Abstract:
Knowledge of micrometer-size polyacrylamide elastic microsphere (MPEM) transport and retention mechanisms in porous media is essential for the application of MPEMs as a smart sweep improvement and profile modification agent in improving oil recovery. A transparent micromodel packed with translucent quartz sand was constructed and used to investigate the pore-scale transport, surface deposition-release, and plugging deposition-remigration mechanisms of MPEMs in porous media. The results indicate that the combination of colloidal and hydrodynamic forces controls the deposition and release of MPEMs on pore-surfaces; the reduction of fluid salinity and the increase of Darcy velocity are beneficial to the MPEM release from pore-surfaces; the hydrodynamic forces also influence the remigration of MPEMs in pore-throats. MPEMs can plug pore-throats through the mechanisms of capture-plugging, superposition-plugging, and bridge-plugging, which produces resistance to water flow; the interception with MPEM particulate filters occurring in the interior of porous media can enhance the plugging effect of MPEMs; while the interception with MPEM particulate filters occurring at the surface of low-permeability layer can prevent the low-permeability layer from being damaged by MPEMs. MPEMs can remigrate in pore-throats depending on their elasticity through four steps of capture-plugging, elastic deformation, steady migration, and deformation recovery. © 2014 American Chemical Society.
Citation:
Yao C, Lei G, Cathles LM, Steenhuis TS (2014) Pore-Scale Investigation of Micron-Size Polyacrylamide Elastic Microspheres (MPEMs) Transport and Retention in Saturated Porous Media. Environ Sci Technol 48: 5329–5335. Available: http://dx.doi.org/10.1021/es500077s.
Publisher:
American Chemical Society (ACS)
Journal:
Environmental Science & Technology
Issue Date:
6-May-2014
DOI:
10.1021/es500077s
PubMed ID:
24749927
Type:
Article
ISSN:
0013-936X; 1520-5851
Sponsors:
We thank Douglas Caveney for help with constructing the transparent micromodel. This research was supported by Program for Changjiang Scholars and Innovative Research Team in University (IRT1294), the China Scholarship Council for Chuanjin Yao (Grant No. 201306450015), and the Fundamental Research Funds for the Central Universities of China (Project No. 11CX06025A).
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Full metadata record

DC FieldValue Language
dc.contributor.authorYao, Chuanjinen
dc.contributor.authorLei, Guanglunen
dc.contributor.authorCathles, Lawrence M.en
dc.contributor.authorSteenhuis, Tammo S.en
dc.date.accessioned2016-02-28T07:59:39Zen
dc.date.available2016-02-28T07:59:39Zen
dc.date.issued2014-05-06en
dc.identifier.citationYao C, Lei G, Cathles LM, Steenhuis TS (2014) Pore-Scale Investigation of Micron-Size Polyacrylamide Elastic Microspheres (MPEMs) Transport and Retention in Saturated Porous Media. Environ Sci Technol 48: 5329–5335. Available: http://dx.doi.org/10.1021/es500077s.en
dc.identifier.issn0013-936Xen
dc.identifier.issn1520-5851en
dc.identifier.pmid24749927en
dc.identifier.doi10.1021/es500077sen
dc.identifier.urihttp://hdl.handle.net/10754/600234en
dc.description.abstractKnowledge of micrometer-size polyacrylamide elastic microsphere (MPEM) transport and retention mechanisms in porous media is essential for the application of MPEMs as a smart sweep improvement and profile modification agent in improving oil recovery. A transparent micromodel packed with translucent quartz sand was constructed and used to investigate the pore-scale transport, surface deposition-release, and plugging deposition-remigration mechanisms of MPEMs in porous media. The results indicate that the combination of colloidal and hydrodynamic forces controls the deposition and release of MPEMs on pore-surfaces; the reduction of fluid salinity and the increase of Darcy velocity are beneficial to the MPEM release from pore-surfaces; the hydrodynamic forces also influence the remigration of MPEMs in pore-throats. MPEMs can plug pore-throats through the mechanisms of capture-plugging, superposition-plugging, and bridge-plugging, which produces resistance to water flow; the interception with MPEM particulate filters occurring in the interior of porous media can enhance the plugging effect of MPEMs; while the interception with MPEM particulate filters occurring at the surface of low-permeability layer can prevent the low-permeability layer from being damaged by MPEMs. MPEMs can remigrate in pore-throats depending on their elasticity through four steps of capture-plugging, elastic deformation, steady migration, and deformation recovery. © 2014 American Chemical Society.en
dc.description.sponsorshipWe thank Douglas Caveney for help with constructing the transparent micromodel. This research was supported by Program for Changjiang Scholars and Innovative Research Team in University (IRT1294), the China Scholarship Council for Chuanjin Yao (Grant No. 201306450015), and the Fundamental Research Funds for the Central Universities of China (Project No. 11CX06025A).en
dc.publisherAmerican Chemical Society (ACS)en
dc.titlePore-Scale Investigation of Micron-Size Polyacrylamide Elastic Microspheres (MPEMs) Transport and Retention in Saturated Porous Mediaen
dc.typeArticleen
dc.identifier.journalEnvironmental Science & Technologyen
dc.contributor.institutionSchool of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, Chinaen
dc.contributor.institutionDepartment of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853, United Statesen
dc.contributor.institutionDepartment of Earth and Atmospheric Science, Cornell University, Ithaca, NY 14853, United Statesen
kaust.authorYao, Chuanjinen
kaust.authorCathles, Lawrence M.en
kaust.grant.fundedcenterKAUST-Cornell Center for Energy and Sustainabilityen
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