Simulations of Partially Miscible Two-Component Two-Phase Flow at the Pore-Scale Using Discontinuous Galerkin Methods

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dc.contributor.advisorRiviere, Beatrice
dc.contributor.committeeMemberHeinkenschloss, Matthias
dc.contributor.committeeMemberChapman, Walter
dc.contributor.committeeMemberChan, Jesse
dc.creatorLin, Lu
dc.date.accessioned2020-10-08T19:17:13Z
dc.date.available2020-10-08T19:17:13Z
dc.date.created2020-08
dc.date.issued2020-10-02
dc.date.submittedAugust 2020
dc.date.updated2020-10-08T19:17:13Z
dc.description.abstractIn this dissertation, an effective numerical algorithm is developed for establishing simulation for the two-component two-phase flow with partial miscibility at the pore scale. Many studies in the rock-fluid interaction have been done for immiscible flow, whose components do not mix and separate instantaneously. This paper extends the study to miscible flow, whose components will mix with certain pressure and temperature, and exploits the potential of simulating complex real-life fluid interactions. The mathematical model consists of a set of Cahn-Hilliard equations and a realistic equation of state (i.e. Peng-Robinson equation of state). The numerical challenges lie in the fact that these are highly coupled, fourth-order, nonlinear partial differential equations. For solving the proposed PDEs, a discontinuous Galerkin (DG) method is used for space discretization, and a combination of backward Euler method and convex-concave splitting method is used for time discretizition. The resulting simulation can extract essential characteristics of the digital rock sample, agreeing with conventional lab-based tests but with only a fraction of cost in time and resources. Practically, the proposed algorithm and simulation can help engineers to make more informed decisions, for example in oil industry for enhancing oil recovery.
dc.format.mimetypeapplication/pdf
dc.identifier.citationLin, Lu. "Simulations of Partially Miscible Two-Component Two-Phase Flow at the Pore-Scale Using Discontinuous Galerkin Methods." (2020) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/109395">https://hdl.handle.net/1911/109395</a>.
dc.identifier.urihttps://hdl.handle.net/1911/109395
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectDiscontinuous Galerkin method
dc.subjectporous media
dc.subjecttwo-component two-phase flow
dc.subjectpartial miscibility
dc.subjectPeng-Robinson equation of state
dc.titleSimulations of Partially Miscible Two-Component Two-Phase Flow at the Pore-Scale Using Discontinuous Galerkin Methods
dc.typeThesis
dc.type.materialText
thesis.degree.departmentComputational and Applied Mathematics
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Arts
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