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dc.contributor.author
Hefny, Mahmoud
dc.contributor.author
Qin, Chao-Zhong
dc.contributor.author
Ebigbo, Anozie
dc.contributor.author
Gostick, Jeff
dc.contributor.author
Saar, Martin O.
dc.contributor.author
Hammed, Mohamed
dc.date.accessioned
2020-10-15T05:23:38Z
dc.date.available
2020-10-15T05:23:38Z
dc.date.issued
2019
dc.identifier.isbn
978-2-9601946-1-6
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/446040
dc.identifier.doi
10.3929/ethz-b-000445810
dc.description.abstract
The injection of CO2 into the highly permeable Nubian Sandstone of a depleted oil field in the central Gulf of Suez Basin (Egypt) is an effective way to extract enthalpy from deep sedimentary basins while sequestering CO2, forming a so-called CO2-Plume Geothermal (CPG) system. Subsurface flow models require constitutive relationships, including relative permeability and capillary pressure curves, to determine the CO2-plume migration at a representative geological scale. Based on the fluid-displacement mechanisms, quasi-static pore-network modeling has been used to simulate the equilibrium positions of fluid-fluid interfaces, and thus determine the capillary pressure and relative permeability curves. 3D images with a voxel size of 650 nm3 of a Nubian Sandstone rock sample have been obtained using Synchrotron Radiation X-ray Tomographic Microscopy. From the images, topological properties of pores/throats were constructed. Using a pore-network model, we performed a cycle of primary drainage of quasi-static invasion to quantify the saturation of scCO2 at the point of a breakthrough with emphasis on the relative permeability–saturation relationship. We compare the quasi-static flow simulation results from the pore-network model with experimental observations. It shows that the Pc-Sw curve is very similar to those observed experimentally.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
EGEC
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Pore-Network Modeling
en_US
dc.subject
CO2-plume geothermal
en_US
dc.subject
Nubia sandstone
en_US
dc.subject
Residual trapping
en_US
dc.title
CO2-Brine flow in Nubian Sandstone (Egypt): Pore Network Modeling using Computerized Tomography Imaging
en_US
dc.type
Conference Paper
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.book.title
Proceedings of the European Geothermal Congress 2019
en_US
ethz.pages.start
265
en_US
ethz.size
11 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.event
European Geothermal Congress (EGC 2019)
en_US
ethz.event.location
The Hague, The Netherlands
en_US
ethz.event.date
June 11-14, 2019
en_US
ethz.publication.place
Brussels
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::09494 - Saar, Martin O. / Saar, Martin O.
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02506 - Institut für Geophysik / Institute of Geophysics::09494 - Saar, Martin O. / Saar, Martin O.
en_US
ethz.relation.isPartOf
http://europeangeothermalcongress.eu/proceedings-egc-2019/
ethz.relation.isPartOf
10.3929/ethz-b-000445518
ethz.date.deposited
2020-01-16T09:43:32Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2020-10-15T05:23:54Z
ethz.rosetta.lastUpdated
2022-03-29T03:31:52Z
ethz.rosetta.versionExported
true
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/392532
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/390999
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/445810
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/395385
ethz.COinS
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