Publication Details

Category Text Publication
Reference Category Book chapters
URL https://iahs.info/uploads/dms/15314.43-228-234-341-19-Kolditz-revised_OK.pdf
Title (Primary) Numerical simulation of two-phase flow in deformable porous media: application to carbon dioxide storage in the subsurface
Title (Secondary) Calibration and reliability in groundwater modelling: Managing groundwater and the environment. 7th International Conference on Calibration and Reliability in Groundwater Modelling ModelCARE 2009, Wuhan, China, 20-23 September 2009
Author Kolditz, O. ORCID logo ; Böttcher, N.; Bauer, S.; Görke, U.-J.; Park, C.-H.; Wang, W. ORCID logo
Publisher Wang, Y.; Ge, S.; Hill, M.C.; Zheng, C.
Source Titel IAHS Publication
Year 2011
Department ENVINF
Volume 341
Page From 228
Page To 234
Language englisch
Keywords porous media; two-phase flow; deformation; benchmarking; carbon capture storage (CCS)
Abstract In this paper, numerical simulation of two-phase flow in deep, deformable geological formations induced by CO(2) injection is presented. The underlying conceptual approach is based on balance equations for mass, momentum and energy completed by appropriate constitutive relations for the fluid phases as well as the solid matrix. Within the context of the primary effects under consideration, the fluid motion will be expressed by modified Darcy's law for two phase flow. To characterize the stress state in the solid matrix, the effective stress principle is applied. Furthermore, interaction of fluid and solid phases is specified by constitutive models for capillary pressure, porosity and permeability as functions of saturation. Based on the conceptual model, a coupled system of nonlinear differential equations is formulated for non-isothermal two-phase flow in a deformable porous matrix (TH(2)M model). The finite element method is used to solve the multi-field problem numerically. The capabilities of the model and the numerical tools to treat complex processes during CO(2) sequestration is checked by benchmarking within a wider scope of a benchmarking scheme, which is also presented and illustrated using two examples: (1) a new benchmark test for H(2)M processes, and (2) a 3-D demonstration example to test the stability and computational costs of the H(2) model for real applications.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=13710
Kolditz, O., Böttcher, N., Bauer, S., Görke, U.-J., Park, C.-H., Wang, W. (2011):
Numerical simulation of two-phase flow in deformable porous media: application to carbon dioxide storage in the subsurface
In: Wang, Y., Ge, S., Hill, M.C., Zheng, C. (eds.)
Calibration and reliability in groundwater modelling: Managing groundwater and the environment. 7th International Conference on Calibration and Reliability in Groundwater Modelling ModelCARE 2009, Wuhan, China, 20-23 September 2009
IAHS Publ. 341
International Association of Hydrological Sciences (IAHS), Wallingford, Oxfordshire, p. 228 - 234