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Upscaling of Water-Flooding Scenarios and Modeling of Polymer Flow

Hilden, Sindre Tonning
Doctoral thesis
Åpne
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http://hdl.handle.net/11250/2388331
Utgivelsesdato
2016
Metadata
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Samlinger
  • Institutt for matematiske fag [1457]
Sammendrag
This thesis considers simulations of the fluid flow in petroleum reservoirs,

and includes work on upscaling methods and on modeling of polymer flood-

ing, which is a particular method of enhanced oil recovery.

The details of a small-scale model can have large impact on the flow

on larger scales, and upscaling is therefore an essential part of reservoir

modeling. We consider upscaling on the field-scale, investigate the balance

of forces during the water-ooding of a reservoir, and use this to asses

the applicability of different upscaling methods, and in particular steady-

state methods. Two novel upscaling methods based on the steady-state

assumption are suggested, and a comparison study is performed between

different methods through realistic field-scale simulations. Established two-phase upscaling techniques are also extended to include polymer properties.

As an alternative to upscaling, we also consider the application of a multiscale method to run polymer flooding simulations more efficiently. Using

the developed solver, we demonstrate that we are able to obtain fast and

accurate solutions on complex grids, using realistic and highly non-linear

ow physics.

Considering another aspect of polymer modeling, we address a known

issue with the mathematical model of an import physical effect of polymer flooding, the velocity enhancement due to inaccessible pore volume.

The conventional model may lead to ill-posed equations, and we propose

alternative formulations to obtain numerically more stable simulations.
Består av
Paper 1: Hilden, Sindre Tonning., Berg, Carl Fredrik Rate Dependent Force Balance and Upscaling of Unsteady Flooding Processes.

Paper 2: Hilden, Sindre Tonning; Berg, Carl Fredrik. Comparison of Two-Phase Upscaling Methods on Field Models

Paper 3: Hilden,Sindre Tonning ; Lie, Knut-Andreas;Ray-naud,Xavier . Steady-State Upscaling of Polymer Flood. ECMOR XIV - Proceedings of 14th European Conference on the Mathematics of Oil Recovery http://dx.doi.org/10.3997/2214-4609.20141802

Paper 4: Hilden, Sindre Tonning; Møyner, Olav; Lie, Knut-Andreas; Bao, Kai. Multiscale simulation of polymer flooding with shear effects. Transport in Porous Media 2016. The final publication is available at Springer http://dx.doi.org/10.1007/s11242-016-0682-2

Paper 5: Hilden, Sindre Tonning; Nilsen,Halvor Møll; Ray-naud, Xavier. A Well-Posed Model of Inaccessible Pore Volume for Polymer
Utgiver
NTNU
Serie
Doctoral thesis at NTNU;2016:12

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