Fractal analysis of fracture increasing spontaneous imbibition in porous media with gas-saturated

Handle URI:
http://hdl.handle.net/10754/562884
Title:
Fractal analysis of fracture increasing spontaneous imbibition in porous media with gas-saturated
Authors:
Cai, Jianchao; Sun, Shuyu ( 0000-0002-3078-864X )
Abstract:
Spontaneous imbibition (SI) of wetting liquid into matrix blocks due to capillary pressure is regarded as an important recovery mechanism in low permeability fractured reservoir. In this paper, an analytical model is proposed for characterizing SI horizontally from a single plane fracture into gas-saturated matrix blocks. The presented model is based on the fractal character of pores in porous matrix, with gravity force included in the entire imbibition process. The accumulated mass of wetting liquid imbibed into matrix blocks is related to a number of factors such as contact area, pore fractal dimension, tortuosity, maximum pore size, porosity, liquid density and viscosity, surface tension, contact angle, as well as height and tilt angle of the fracture. The mechanism of fracture-enhanced SI is analyzed accordingly. Because of the effect of fracture, the gravity force is positive to imbibition process. Additionally, the farther away from the fracture top of the pore, the more influential the hydrostatic pressure is upon the imbibition action. The presented fractal analysis of horizontal spontaneous imbibition from a single fracture could also shed light on the scaling study of the mass transfer function between matrix and fracture system of fractured reservoirs. © 2013 World Scientific Publishing Company.
KAUST Department:
Computational Transport Phenomena Lab; Physical Sciences and Engineering (PSE) Division; Environmental Science and Engineering Program
Publisher:
World Scientific Pub Co Pte Lt
Journal:
International Journal of Modern Physics C
Issue Date:
Aug-2013
DOI:
10.1142/S0129183113500563
Type:
Article
ISSN:
01291831
Sponsors:
This work was partially supported by the National Natural Science Foundation of China (41102080), the Natural Science Foundation of Hubei Province (2011CDA123), the Fundamental Research Funds for the Central Universities (CUG130404 and CUG130103) and Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education (TPR-2011-23), China University of Geosciences (Wuhan), and the KAUST's GRP-AEA Program through the funded project entitled "Simulation of Subsurface Geochemical Transport and Carbon Sequestration."
Appears in Collections:
Articles; Environmental Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Computational Transport Phenomena Lab

Full metadata record

DC FieldValue Language
dc.contributor.authorCai, Jianchaoen
dc.contributor.authorSun, Shuyuen
dc.date.accessioned2015-08-03T11:14:03Zen
dc.date.available2015-08-03T11:14:03Zen
dc.date.issued2013-08en
dc.identifier.issn01291831en
dc.identifier.doi10.1142/S0129183113500563en
dc.identifier.urihttp://hdl.handle.net/10754/562884en
dc.description.abstractSpontaneous imbibition (SI) of wetting liquid into matrix blocks due to capillary pressure is regarded as an important recovery mechanism in low permeability fractured reservoir. In this paper, an analytical model is proposed for characterizing SI horizontally from a single plane fracture into gas-saturated matrix blocks. The presented model is based on the fractal character of pores in porous matrix, with gravity force included in the entire imbibition process. The accumulated mass of wetting liquid imbibed into matrix blocks is related to a number of factors such as contact area, pore fractal dimension, tortuosity, maximum pore size, porosity, liquid density and viscosity, surface tension, contact angle, as well as height and tilt angle of the fracture. The mechanism of fracture-enhanced SI is analyzed accordingly. Because of the effect of fracture, the gravity force is positive to imbibition process. Additionally, the farther away from the fracture top of the pore, the more influential the hydrostatic pressure is upon the imbibition action. The presented fractal analysis of horizontal spontaneous imbibition from a single fracture could also shed light on the scaling study of the mass transfer function between matrix and fracture system of fractured reservoirs. © 2013 World Scientific Publishing Company.en
dc.description.sponsorshipThis work was partially supported by the National Natural Science Foundation of China (41102080), the Natural Science Foundation of Hubei Province (2011CDA123), the Fundamental Research Funds for the Central Universities (CUG130404 and CUG130103) and Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education (TPR-2011-23), China University of Geosciences (Wuhan), and the KAUST's GRP-AEA Program through the funded project entitled "Simulation of Subsurface Geochemical Transport and Carbon Sequestration."en
dc.publisherWorld Scientific Pub Co Pte Lten
dc.subjectFractalen
dc.subjectFractureen
dc.subjectGravity forceen
dc.subjectPorous mediaen
dc.subjectSpontaneous imbibitionen
dc.titleFractal analysis of fracture increasing spontaneous imbibition in porous media with gas-saturateden
dc.typeArticleen
dc.contributor.departmentComputational Transport Phenomena Laben
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.identifier.journalInternational Journal of Modern Physics Cen
dc.contributor.institutionKey Laboratory of Tectonics and Petroleum Resources of Ministry of Education, Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan 430074, Chinaen
kaust.authorSun, Shuyuen
kaust.authorCai, Jianchaoen
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