{"id":{"repo_id":"texas","oai_identifier":"oai:repositories.lib.utexas.edu:2152/80535"},"canonical_url":"https://search.dev.ndltd.org/etd/texas/oai:repositories.lib.utexas.edu:2152/80535","repository":{"repo_id":"texas","name":"University of Texas","base_url":"https://repositories.lib.utexas.edu/server/oai/request"},"display":{"title":"A Study of Transport of Micellar Fluids in Porous Media","abstract":"Two- and three-phase relative permeabilities have been measured for a low interfacial tension brineoil- surfactant-alcohol mixture in a Berea sandstone core. The measurements were done at steady-state with a constant nominal capillary number of 10^-2. Residual phase saturation (capillary desaturation curve) and endpoint relative permeability have also been measured for three-phase micellar fluids as a function of capillary number in a Berea core. Continuous and slug displacements of both partitioning and non-partitioning radioactive tracers were run for each steady-state experiment. The experimental effluent tracer data from these experiments were analyzed by a capacitance model. The phase dispersivities and dispersion coefficients estimated from the capacitance analysis as a function of phase saturation and velocity are illustrated. Both excess phases (oil and brine) flowing with the microemulsion showed significant capacitance effects, but the microemulsion did not. The absence of capacitance and higher residual saturation than those of excess phases at the same capillary number indicate that the microemulsion was probably the wetting phase in these low interfacial tension flows, even more wetting than the excess brine phase. The relative permeability of each phase is a function only of its own saturation during three-phase flow. Based on this observation and the trend of experimental data, an exponential function is recommended to model three-phase relative permeability at high capillary number.","abstract_html":"Two- and three-phase relative permeabilities have been measured for a low interfacial tension brineoil- surfactant-alcohol mixture in a Berea sandstone core. The measurements were done at steady-state with a constant nominal capillary number of 10^-2. Residual phase saturation (capillary desaturation curve) and endpoint relative permeability have also been measured for three-phase micellar fluids as a function of capillary number in a Berea core. Continuous and slug displacements of both partitioning and non-partitioning radioactive tracers were run for each steady-state experiment. The experimental effluent tracer data from these experiments were analyzed by a capacitance model. The phase dispersivities and dispersion coefficients estimated from the capacitance analysis as a function of phase saturation and velocity are illustrated. Both excess phases (oil and brine) flowing with the microemulsion showed significant capacitance effects, but the microemulsion did not. The absence of capacitance and higher residual saturation than those of excess phases at the same capillary number indicate that the microemulsion was probably the wetting phase in these low interfacial tension flows, even more wetting than the excess brine phase. The relative permeability of each phase is a function only of its own saturation during three-phase flow. Based on this observation and the trend of experimental data, an exponential function is recommended to model three-phase relative permeability at high capillary number.","abstract_has_math":false,"creators":["Delshad, Mojdeh"],"institution":"University of Texas at Austin","degree_name":"Doctor of Philosophy","degree_level":"Doctoral","degree_discipline":"Petroleum Engineering","degree_department":null,"school":null,"contributors":[],"advisors":["Lake, Larry W.","Pope, Gary A."],"committee_chairs":[],"committee_members":[],"year":1986,"date_issued":"1986-05","date_published":"1986-05","updated_at":"2026-07-24T05:01:10Z","subjects":["Relative Permeability","Micellar Fluids","Porous Media","Dispersivity"],"languages":["eng"],"rights":["Copyright © is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works."],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://dx.doi.org/10.26153/tsw/7551"],"render_values":[{"text":"http://dx.doi.org/10.26153/tsw/7551","href":"http://dx.doi.org/10.26153/tsw/7551","code":true}]}]},"links":{"outbound_url":"https://hdl.handle.net/2152/80535","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Lake, Larry W.","Pope, Gary A."]},{"key":"dc:creator","label":"Author","values":["Delshad, Mojdeh"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2020-04-08T23:15:32Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2020-04-08T23:15:32Z"]},{"key":"dc:date.issued","label":"Date","values":["1986-05"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Petroleum Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Doctoral"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Doctor of Philosophy"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Texas at Austin"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Relative Permeability","Micellar Fluids","Porous Media","Dispersivity"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright © is held by the author. 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Continuous and slug displacements of both partitioning and non-partitioning radioactive tracers were run for each steady-state experiment. The experimental effluent tracer data from these experiments were analyzed by a capacitance model. The phase dispersivities and dispersion coefficients estimated from the capacitance analysis as a function of phase saturation and velocity are illustrated. Both excess phases (oil and brine) flowing with the microemulsion showed significant capacitance effects, but the microemulsion did not. The absence of capacitance and higher residual saturation than those of excess phases at the same capillary number indicate that the microemulsion was probably the wetting phase in these low interfacial tension flows, even more wetting than the excess brine phase. The relative permeability of each phase is a function only of its own saturation during three-phase flow. Based on this observation and the trend of experimental data, an exponential function is recommended to model three-phase relative permeability at high capillary number."]},{"key":"dc:format.medium","label":"Dc Format Medium","values":["electronic"]},{"key":"dc:title","label":"Title","values":["A Study of Transport of Micellar Fluids in Porous Media"]}]}],"canonical_facts":{"dc:contributor.advisor":["Lake, Larry W.","Pope, Gary A."],"dc:creator":["Delshad, Mojdeh"],"dc:date.accessioned":["2020-04-08T23:15:32Z"],"dc:date.available":["2020-04-08T23:15:32Z"],"dc:date.issued":["1986-05"],"dc:description.abstract":["Two- and three-phase relative permeabilities have been measured for a low interfacial tension brineoil- surfactant-alcohol mixture in a Berea sandstone core. The measurements were done at steady-state with a constant nominal capillary number of 10^-2. Residual phase saturation (capillary desaturation curve) and endpoint relative permeability have also been measured for three-phase micellar fluids as a function of capillary number in a Berea core. Continuous and slug displacements of both partitioning and non-partitioning radioactive tracers were run for each steady-state experiment. The experimental effluent tracer data from these experiments were analyzed by a capacitance model. The phase dispersivities and dispersion coefficients estimated from the capacitance analysis as a function of phase saturation and velocity are illustrated. Both excess phases (oil and brine) flowing with the microemulsion showed significant capacitance effects, but the microemulsion did not. The absence of capacitance and higher residual saturation than those of excess phases at the same capillary number indicate that the microemulsion was probably the wetting phase in these low interfacial tension flows, even more wetting than the excess brine phase. The relative permeability of each phase is a function only of its own saturation during three-phase flow. Based on this observation and the trend of experimental data, an exponential function is recommended to model three-phase relative permeability at high capillary number."],"dc:format.medium":["electronic"],"dc:identifier.uri":["https://hdl.handle.net/2152/80535","http://dx.doi.org/10.26153/tsw/7551"],"dc:language.iso":["eng"],"dc:rights":["Copyright © is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works."],"dc:subject":["Relative Permeability","Micellar Fluids","Porous Media","Dispersivity"],"dc:title":["A Study of Transport of Micellar Fluids in Porous Media"],"dc:type":["Thesis"],"thesis:degree_discipline":["Petroleum Engineering"],"thesis:degree_level":["Doctoral"],"thesis:degree_name":["Doctor of Philosophy"],"thesis:institution_name":["University of Texas at Austin"]},"updated_at":"2026-07-24T05:01:10Z"}