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Analytical Solution to Pressure Transient Analysis in Non-Newtonian/Newtonian Fluids Composite Reservoirs

dc.contributor.authorUkwuigwe, Onyinyechi Chizobam
dc.date.accessioned2022-08-26T13:31:46Z
dc.date.available2022-08-26T13:31:46Z
dc.date.issued2021-04-03
dc.identifier.urihttp://repository.aust.edu.ng/xmlui/handle/123456789/5073
dc.description2021 Petroleum Engineering Masters Thesesen_US
dc.description.abstractDuring polymer flooding in the reservoir using shear-thinning non-Newtonian fluids, an interface exists between the in-situ Newtonian crude in the reservoir and the injected polymer solution. This work examines application of well test analysis techniques to develop an analytical solution to investigate the interface boundary conditions for non-Newtonian/Newtonian fluids in composite reservoirs. Mathematical models were presented and solved analytically using Laplace transform method. The solution was inverted to real domain with the Stehfest algorithm and extended to obtain equations for the three boundary conditions which are: infinite-acting, constant pressure, and no-flow boundaries. New pressure and pressure derivative type curves are developed for homogeneous and naturally fractured reservoirs (NFRs). Cases of non-Newtonian/non-Newtonian and Newtonian/non Newtonian fluid interface were also considered. Numerical examples are used to estimate reservoir and power-law flow parameters using type curve matching and Tiab’s Direct Synthesis (TDS) technique.en_US
dc.description.sponsorshipAUSTen_US
dc.language.isoenen_US
dc.publisherAUSTen_US
dc.subject2021 Petroleum Engineering Masters Thesesen_US
dc.subjectUkwuigwe Oyinyechi Chizobamen_US
dc.subjectPower-law (shear thinning) fluidsen_US
dc.subjectWell test (Pressure transient) analysisen_US
dc.subjectTiab’s Direct Synthesis (TDS) techniqueen_US
dc.subjectNaturally Fractured Reservoirs (NFR)en_US
dc.subjectNon-Newtonian/Newtonian fluid interfaceen_US
dc.subjectPolymer Fronten_US
dc.subjectDr. Alpheus Igbokoyien_US
dc.titleAnalytical Solution to Pressure Transient Analysis in Non-Newtonian/Newtonian Fluids Composite Reservoirsen_US
dc.typeThesisen_US


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