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Qualitative and quantitative analyses of the three-phase distribution of oil, water, and gas in bentheimer sandstone by use of micro-ct imaging

Feali, M; Pinczewski, Wolf Val; Cinar, Yildiray; Arns, Christoph; Arns, Ji-Youn; Turner, Michael; Senden, Timothy; Francois, Nicolas; Knackstedt, Mark A.

Description

It is now widely acknowledged that continuous oil-spreading films observed in 2D glass-micromodel studies for strongly water-wet three-phase oil, water, and gas systems are also present in real porous media, and they result in lower tertiary-gasflood residual oil saturations than for corresponding negative spreading systems that do not display oil-spreading behavior. However, it has not yet been possible to directly confirm the presence of continuous spreading films in real porous media in...[Show more]

dc.contributor.authorFeali, M
dc.contributor.authorPinczewski, Wolf Val
dc.contributor.authorCinar, Yildiray
dc.contributor.authorArns, Christoph
dc.contributor.authorArns, Ji-Youn
dc.contributor.authorTurner, Michael
dc.contributor.authorSenden, Timothy
dc.contributor.authorFrancois, Nicolas
dc.contributor.authorKnackstedt, Mark A.
dc.date.accessioned2015-12-13T22:17:20Z
dc.identifier.issn1930-0212
dc.identifier.urihttp://hdl.handle.net/1885/71080
dc.description.abstractIt is now widely acknowledged that continuous oil-spreading films observed in 2D glass-micromodel studies for strongly water-wet three-phase oil, water, and gas systems are also present in real porous media, and they result in lower tertiary-gasflood residual oil saturations than for corresponding negative spreading systems that do not display oil-spreading behavior. However, it has not yet been possible to directly confirm the presence of continuous spreading films in real porous media in three dimensions, and little is understood of the distribution of the phases within the complex geometry and topology of actual porous media for different spreading conditions. This paper describes a study with high-resolution X-ray microtomography to image the distribution of oil, water, and gas after tertiary gasflooding to recover waterflood residual oil for two sets of fluids, one positive spreading and the other negative spreading, in strongly water-wet Bentheimer sandstone. We show that, for the positive spreading system, oil-spreading films maintain the connectivity of the oil phase down to low oil saturation. At similar oil saturation, no oil films are observed for the negative spreading system, and the oil phase is disconnected. The spatial continuity of the oil-spreading films over the imaged volume is confirmed by the computed Euler characteristic for the oil phase.
dc.publisherSociety of Petroleum Engineers
dc.sourceSPE Reservoir Evaluation and Engineering
dc.subjectKeywords: Complex geometries; Euler characteristic; Gas flooding; Gas systems; High resolution; Micro CT; Oil films; Oil phase; Oil saturation; Qualitative and quantitative analysis; Residual oil saturation; Spatial continuity; Three dimensions; Waterflood residual
dc.titleQualitative and quantitative analyses of the three-phase distribution of oil, water, and gas in bentheimer sandstone by use of micro-ct imaging
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume15
dc.date.issued2012
local.identifier.absfor091406 - Petroleum and Reservoir Engineering
local.identifier.absfor020405 - Soft Condensed Matter
local.identifier.absfor040309 - Petroleum and Coal Geology
local.identifier.ariespublicationf5625xPUB2545
local.type.statusPublished Version
local.contributor.affiliationFeali, M, University of New South Wales
local.contributor.affiliationPinczewski, Wolf Val, University of New South Wales
local.contributor.affiliationCinar, Yildiray, University of New South Wales
local.contributor.affiliationArns, Christoph, University of New South Wales
local.contributor.affiliationArns, Ji-Youn, University of New South Wales
local.contributor.affiliationTurner, Michael, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationSenden, Timothy , College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationFrancois, Nicolas, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationKnackstedt, Mark A., University of New South Wales
local.description.embargo2037-12-31
local.bibliographicCitation.issue6
local.bibliographicCitation.startpage706
local.bibliographicCitation.lastpage711
dc.date.updated2016-02-24T09:00:15Z
local.identifier.scopusID2-s2.0-84873316200
local.identifier.thomsonID000313300200009
CollectionsANU Research Publications

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