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Modeling geomechanical responses induced by CO2 injection in CCS pilot project in Gundih field, Indonesia
Fatkhana, Suhendi C.b, Sahara D.P.a, Sule M.R.a
a Seismology, Exploration and Engineering Research Group, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Indonesia
b Geophysical Engineering, Department of Sciences, Institut Teknologi Sumatera, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2019 Published under licence by IOP Publishing Ltd.Injection activity changes reservoir pore pressure and temperature condition and then alters stress condition of reservoir. Increasing pore pressure from injection leads to a decrease in effective stress of reservoir rocks and surrounding rocks. It induces deformation and failure on the reservoir, which in turn, might create surface uplift. This process is modelled by a coupled Thermo – Hydro – Mechanics (THM) modelling. Hence, objective of study is to investigate and to simulate geomechanical responses induced by CO2 injection in Gundih Field, as part of Carbon Capture and Storage (CCS) Pilot Project in Indonesia. A 3D model of a layered formation consists of porous and permeable reservoir layer and non-porous and impermeable cap rock is built. A boundary condition is set as no lateral displacement normal to side boundary and no vertical displacement normal to bottom boundary. An injection scheme of 0.32 Kg/s for one year is applied in the reservoir at 900m depth. At this depth, CO2 is a supercritical condition, in which the phase depends on the hydrostatics pressure and gradient thermal. The pressure distribution obtained in this study showed that the stress perturbation around the cap rock due to CO2 fluid injection is relatively small and no failure at the cap rock layer is expected. Hence, the proposed CO2 fluid injection is safe to be executed. The program developed in this study could be used to assess the design of CO2 injection schemes.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Carbon capture and storages (CCS),Deformation and failures,Lateral displacements,Layered formations,Reservoir pore pressure,Stress perturbations,Supercritical condition,Vertical displacements[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1088/1742-6596/1204/1/012106[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]