Physics – Geophysics
Scientific paper
2009-12-26
Physics
Geophysics
Scientific paper
In this study, over different scenarios we will simulate a week coupling of hydromechanical loads in a long term CO2 injection with a hypothetical reservoir while the effect of pore water pressure and then multi-phase flow procedure has been ignored. In the first basic case the homogenous case has been considered when the theory of poroelasticity was employed. Second case covers the effects of directional heterogeneity, constructed by random faults, on the flow paths of gas and other attributes of the system. Also, in the latter case the impact of stress state as an active loads (body loads) has been regarded. Thanks to multiple directional heterogeneity, which induces only one heterogenic parameter (intrinsic permeability), distinguishable flow paths can be recognized. In another process, the failure ability of system regard to Mohr-Columb criterion is measured as well as options that, presumably, the system has continuum faults (zero cohesion). The results over different cases shows absedince of ground surface (heave), more probable propagation of failure area and the role of directional heterogeneity to change the evolution path of system.
Fall Mamadou
Ghaffari Hamed . O.
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