Insights into Injection-Induced Surface Displacement Via Geertsma-Type Models

10 Pages Posted: 14 Dec 2022

See all articles by Joonsang Park

Joonsang Park

Norwegian Geotechnical Institute

Ola Eiken

Quad Geometrics

Bahman Bohloli

Norwegian Geotechnical Institute

Tore Ingvald Bjørnarå

Norwegian Geotechnical Institute

Date Written: November 25, 2022

Abstract

This study explores simple geological models and the response of surface deformation induced during CO2 injection, which can provide useful insight into how the subsurface behaves geomechanically during the sequestration. For this purpose, we solve a series of numerical examples by varying the soil/rock properties and geometry such as elastic stiffness, stiffness anisotropy, underburden thickness, reservoir heterogeneity, reservoir tilting and add even faults in order to show how sensitive the surface displacement is to these changes and which parameters are the most significant. The sensitivity investigation in this study may provide good knowledges for developing inversion strategy for surface deformation to characterize the subsurface geomechanical behaviour during CO2 injection monitoring.

Keywords: CO2 storage, surface heave, Geertsma type problem, layered subsurface

JEL Classification: C63

Suggested Citation

Park, Joonsang and Eiken, Ola and Bohloli, Bahman and Bjørnarå, Tore Ingvald, Insights into Injection-Induced Surface Displacement Via Geertsma-Type Models (November 25, 2022). Available at SSRN: https://ssrn.com/abstract=4286093 or http://dx.doi.org/10.2139/ssrn.4286093

Joonsang Park (Contact Author)

Norwegian Geotechnical Institute ( email )

PO Box 3930 Ullevaal Stadion
Oslo, N-0855
Norway

Ola Eiken

Quad Geometrics

Trondheim
Norway

Bahman Bohloli

Norwegian Geotechnical Institute

PO Box 3930 Ullevaal Stadion
Oslo, N-0855
Norway

Tore Ingvald Bjørnarå

Norwegian Geotechnical Institute ( email )

PO Box 3930 Ullevaal Stadion
Oslo, N-0855
Norway

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