Geomechanical modeling of CO 2 geological storage: A review
نویسندگان
چکیده
منابع مشابه
A Review of Geological Modeling
Over the past two decades, a series of sophisticated three-dimensional modeling technologies – collectively identified as Geoscientific Information Systems, or GSIS – have been developed to address the need for a precise definition of subsurface conditions (Turner, 1991). Geological modeling requires the extension of traditional GIS methods (Turner, 2000; 2006) and the modeling process remains ...
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Reservoir depletion and subsequent CO2 injection into the depleted geological reservoir induce stress changes that may mechanically damage top seal and wells, or trigger existing faults, creating the leakage pathways for CO2 escape from the reservoir. The role of geomechanics is to assess the mechanical impact of stress changes on seals, wells and faults. Since many hydrocarbon fields are geome...
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A poromechanical model is developed to identify how chemical reactions of carbonation may impact the mechanical behaviour of wellbore cement in the context of CO 2 storage. The model enables evaluating pore overpressure, porosity and solid skeleton strain evolutions during the carbonation process. The major chemical reactions occurring within cement and their consequences on the volumes of diss...
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Storage of CO2 in deep geological formations has been identified as the most likely near-future option to significantly reduce industrial greenhouse gas emissions in Alberta. In order to assess the risks associated with potential leakage of the injected CO2 the factors influencing the potential loss of containment need to be evaluated. Currently, there is a lack of publicly available, high qual...
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We present a contribution on the risk of hydraulic fracturing in CO2 geological storage using an analytical model of hydraulic fracturing in weak formations. The work is based on a MohrCoulomb dislocation model that is extended to account for material with fracture toughness. The complete slip process that is distributed around the crack tip is replaced by superdislocations that are placed in t...
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ژورنال
عنوان ژورنال: Journal of Rock Mechanics and Geotechnical Engineering
سال: 2016
ISSN: 1674-7755
DOI: 10.1016/j.jrmge.2016.10.002