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dc.contributor.advisorBalhoff, Matthew T.en
dc.creatorTansey, Joseph Fredericen
dc.date.accessioned2015-10-29T13:55:01Zen
dc.date.available2015-10-29T13:55:01Zen
dc.date.issued2015-05en
dc.date.submittedMay 2015en
dc.identifierdoi:10.15781/T2JK65en
dc.identifier.urihttp://hdl.handle.net/2152/32037en
dc.descriptiontexten
dc.description.abstractOver half of the world's hydrocarbon reserves are found in carbonates. Acid injection is a cost effective way to enhance productivity in carbonates by reducing the near-wellbore skin. Ideally, injected acid creates highly permeable channels around the wellbore, known as wormholes. The successful formation of these wormholes depends on acid type, injection rate, and reservoir properties. Improper treatment design results in sub-optimal acid placement with negligible permeability increase. Previous attempts to accurately capture the wormholing process using a pore-scale network model have encountered many difficulties. We present a modern pore network model of carbonate acidization using networks extracted from CT scans of carbonate cores. A mass transfer coefficient and pore merging criterion are developed using finite element simulations in COMSOL that both greatly improve network physics. While there are many weaknesses to the pore network modeling approach, the optimal Damkohler number for our networks closely matches experimental data.en
dc.format.mimetypeapplication/pdfen
dc.language.isoenen
dc.subjectCarbonateen
dc.subjectAcidizationen
dc.subjectPore networken
dc.titlePore network modeling of carbonate acidizationen
dc.typeThesisen
dc.date.updated2015-10-29T13:55:02Zen
dc.contributor.committeeMemberSepehrnoori, Kamyen
dc.description.departmentPetroleum and Geosystems Engineeringen
thesis.degree.departmentPetroleum and Geosystems Engineeringen
thesis.degree.disciplinePetroleum Engineeringen
thesis.degree.grantorThe University of Texas at Austinen
thesis.degree.levelMastersen
thesis.degree.nameMaster of Science in Engineeringen


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