منابع مشابه
Experimental Study of Cement - Sandstone/Shale - Brine - CO2 Interactions
BACKGROUND Reactive-transport simulation is a tool that is being used to estimate long-term trapping of CO2, and wellbore and cap rock integrity for geologic CO2 storage. We reacted end member components of a heterolithic sandstone and shale unit that forms the upper section of the In Salah Gas Project carbon storage reservoir in Krechba, Algeria with supercritical CO2, brine, and with/without ...
متن کاملCoral reefs may start dissolving when atmospheric CO2 doubles
[1] Calcification rates in stony corals are expected to decline significantly in the near future due to ocean acidification. In this study we provide a global estimate of the decline in calcification of coral reefs as a result of increase in sea surface temperature and partial pressure of CO2. This estimate, unlike previously reported estimates, is based on an empirical rate law developed from ...
متن کاملCO2/Brine transport into shallow aquifers along fault zones.
Unintended release of CO(2) from carbon sequestration reservoirs poses a well-recognized risk to groundwater quality. Research has largely focused on in situ CO(2)-induced pH depression and subsequent trace metal mobilization. In this paper we focus on a second mechanism: upward intrusion of displaced brine or brackish-water into a shallow aquifer as a result of CO(2) injection. Studies of two ...
متن کاملPredicting PVT data for CO2–brine mixtures for black-oil simulation of CO2 geological storage
Accurate modeling of the storage or sequestration of CO2 injected into subsurface formations requires an accurate fluid model. This can be achieved using compositional reservoir simulations. However, sophisticated equations of state (EOS) approaches used in current compositional simulators are computationally expensive. It is advantageous and possible to use a simple, but accurate fluid model f...
متن کاملModeling Fine-scale Capillary Heterogeneity in Multiphase Flow of Co2 and Brine in Sedimentary Rocks
Experimental evidence by several groups, including ours, indicates that spatial variations in the capillary-pressure-saturation relationship can dominate the saturation distribution and transport dynamics of CO2-brine systems in natural porous media. The importance of such small-scale capillary heterogeneity depends strongly on the local balance of the viscous, buoyancy, and capillary forces. I...
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ژورنال
عنوان ژورنال: Science
سال: 2012
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.337.6101.1435-c