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CO2geological sequestration modelling and injection induced fracturing analysis of the caprock
Liu XL1; Lin P1; Wang EZ1; He GH1; Han GF(韩国锋)2
Source PublicationRock Characterisation, Modelling and Engineering Design Methods - Proceedings of the 3rd ISRM SINOROCK 2013 Symposium
Conference Name3rd ISRM Symposium on Rock Characterisation, Modelling and Engineering Design Methods, SINOROCK 2013
Conference DateJune 18, 2013 - June 20, 2013
Conference PlaceShanghai, China
AbstractIn geological sequestration, CO2is injected under high pressure into deep underground rock formations, including deep saline aquifers. This paper presents the invading supercritical CO2-brine two-phase numerical model to describe CO2flow and transport processes in deep saline aquifers. The effects of anisotropy and different kinds of heterogeneity like horizontal and vertical layers and also existence of barriers between layers on the CO2flow and transport in a saturated porous media with brine are investigated using the presented two-phase model. Following to simulation results, it can be obtained that the permeability of the rock formations and the permeability anisotropy should be considered as the most important parameters in CO2flow and transport processes and its distribution in the rock formations. Furthermore, the capillary pressure on the buoyancy-driven flow of CO2is analyzed, and the XFEM is adopted to simulate the injection induced fracturing process of the naturally fractured caprock. © 2013 Taylor & Francis Group.
KeywordAnisotropy Aquifers Buoyancy Design Hydrogeology Porous materials Rocks Buoyancy driven flows Deep saline aquifers Flow and transport Fracturing process Geological sequestration Permeability anisotropy Saturated porous media Supercritical CO2
Indexed ByEI
Document Type会议论文
Affiliation1.State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing, China;
2.Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
Recommended Citation
GB/T 7714
Liu XL,Lin P,Wang EZ,et al. CO2geological sequestration modelling and injection induced fracturing analysis of the caprock[C],2013:463-468.
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