Multi-phase fluid-loss properties and return permeability of energized fracturing fluids

dc.contributor.advisorSharma, Mukul M.en
dc.contributor.committeeMemberSepehrnoori, Kamyen
dc.creatorRibeiro, Lionel Herve Noelen
dc.date.accessioned2012-08-20T15:29:14Zen
dc.date.accessioned2017-05-11T22:27:05Z
dc.date.available2012-08-20T15:29:14Zen
dc.date.available2017-05-11T22:27:05Z
dc.date.issued2012-05en
dc.date.submittedMay 2012en
dc.date.updated2012-08-20T15:29:22Zen
dc.descriptiontexten
dc.description.abstractWith the growing interest in low-permeability gas plays, foam fracturing fluids are now well established as a viable alternative to traditional fracturing fluids. Present practices in energized fracturing treatments remain nonetheless rudimentary in comparison to other fracturing fluid technologies because of our limited understanding of multi-phase fluid-loss and phase behavior occurring in these complex fluids. This report assesses the fluid-loss benefits introduced by energizing the fracturing fluid. A new laboratory apparatus has been specifically designed and built for measuring the leak-off rates for both gas and liquid phases under dynamic fluid-loss conditions. This report provides experimental leak-off results for linear guar gels and for N2-guar foam-based fracturing fluids under a wide range of fracturing conditions. In particular, the effects of the rock permeability, the foam quality, and the pressure drop are investigated. Analysis of dynamic leak-off data provide an understanding of the complex mechanisms of viscous invasion and filter-cake formation occurring at the pore-scale. This study presents data supporting the superior fluid-loss behavior of foams, which exhibit minor liquid invasion and limited damage. It also shows direct measurements of the ability of the gas component to leak-off into the invaded zone, thereby increasing the gas saturation around the fracture and enhancing the gas productivity during flowback. Our conclusions not only confirm, but add to the findings of McGowen and Vitthal (1996) for linear gels, and the findings of Harris (1985) for nitrogen foams.en
dc.description.departmentPetroleum and Geosystems Engineeringen
dc.format.mimetypeapplication/pdfen
dc.identifier.slug2152/ETD-UT-2012-05-5443en
dc.identifier.urihttp://hdl.handle.net/2152/ETD-UT-2012-05-5443en
dc.language.isoengen
dc.subjectHydraulic fracturingen
dc.subjectFoamsen
dc.subjectEnergized fluidsen
dc.subjectLeak-offen
dc.subjectRegain permeabilityen
dc.subjectShale gasen
dc.subjectTight gasen
dc.titleMulti-phase fluid-loss properties and return permeability of energized fracturing fluidsen
dc.type.genrethesisen

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