ParaGeo-Pflotran Tutorials

 

In this section the tutorials demonstrating ParaGeo coupling to Pflotran-OGS and Pflotran are presented. It is noted that the nomenclature convention adopted for the tutorial cases presented here is to use PFO in the case name for cases using Pflotran-OGS and PFS for cases using the standard version of Pflotran.

 

 

INDEX

 

 

Title

Analysis Type - Features List / Utility

Model

ParaGeo-Pflotran-OGS coupling

ParaGeo-Pflotran Coupling Overview

•Features and functionality for ParaGeo-Pflotran simulations

•Notes on model building workflows

PflotranOverview_Fig01

Schematic of coupling between ParaGeo and Pflotran / Pflotran-OGS where only the reservoir is solved in Pflotran (coupled group)

 

PflotranOverview_Fig02

Schematic of potential mesh and grid building options for ParaGeo-Pflotran coupled simulation

PFO_001 3 Layer Column

Coupled HM and THM (3D)

 

•Grid Generation

 

 

•Generation of Pflotran data from ParaGeo

 

PFO_001_Case01a_1          

Schematic of model

PFO_001_Case01_1

ParaGeo model mesh

•PFO_001_Case01 Saline Aquifer

oCase01a Isothermal (HM)

oCase01b Transient Thermal (THM)

•Set up of coupled simulations

•Output and Visualisation of results in ParaView and ResInsight compatible formats

•Demonstration of different Pflotran-OGS modelling options and scenarios

PFO_001_Case01a_2

Gas saturation (left) and gas pressure (right) distributions within the reservoir after 20 years of injection

PFO_001_Case01b_3

Vertical displacement (a), Reservoir gas saturation (b) and element temperature (c) distribution after 20 years of injection. Reservoir temperature evolution in a well cell (d). Figure (a) shows all the formations whereas figures (b) and (c) show the reservoir with V.E. = 10

•PFO_001_Case02 Depleted Gas Reservoir

oCase02a COMP3 flow mode (THM)

oCase02b COMP (HM)

PFO_001_Case02a_1

Contour plots for gas saturation (a), methane gas mass fraction (b) CO2 solvent mass fraction (c) and pore pressure with principal stress directions and magnitudes indicated by the coloured arrows (d, e, f) after 20 years of gas depletion (t =21 years)

•PFO_001_Case03 Non-matching meshes (THM)

•Case03a Matching meshes in reservoir for geomechanical and flow models

•Case03b Coarser HEX mesh in geomechanical model

•Case03c TET mesh in geomechanical model

•Demonstration of mapping for non-matching meshes

PFO_001_Case03a_1

Various meshes simulated