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Showing 1 to 20 of 69 for “"CO2 Sequestration"”.
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CO2 Sequestration through Mineral Carbonation
… with global climate change. Carbon dioxide (CO2) is the most prevalent anthropogenic greenhouse gas, and hence reduction of CO2 concentration in the atmosphere has become an important area of research. Subsurface (geologic) storage has been proposed as a target for CO2 storage; physical, …
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CO2 sequestration using brine impacted fly fish
… that South African FA and brine could sequester CO2 through mineral carbonation. A statistical approach was undertaken to optimize the % CaCO3 formed from FA/brine/CO2 interaction with input parameters of temperature, pressure, particle size and solid/liquid ratio (S/L) being varied. The ranges …
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Geomechanical Stability Analysis for Co2 Sequestration in Carbonate Formation
… pillars to build up the confidence of geological sequestration of CO2. Large scale CO2 sequestration in deep carbonate formation is a complicated geological process, which will non-reversibly transform the presumed equivalent and stable status of a sedimentary basin that formed over millions of …
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Numerical Simulation and Optimization of CO2 Sequestration in Saline Aquifers
<p>With heightened concerns on CO2 emissions from pulverized-coal power plants, there has been major emphasis in recent years on the development of safe and economical Geological Carbon Sequestration: GCS) technology. Although among one of the most promising technologies to address the problem of …
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Geothermal reservoir characterisation using automated mineralogy; implications for CO2 sequestration
… well as any possible benefits in understanding CO2and H2S sequestration projects. 209 cutting samples were analysed using SEM-EDS and processed using AMICS software at 10m intervals through the NJ-18 well, producing quantitative data for 40 phases, made up of compositionally similar minerals, as …
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Modeling CO2 Sequestration and Enhanced Gas Recovery in Complex Unconventional Reservoirs
Geologic sequestration of CO2 into unmineable coal seams is proposed as a way to mitigate the greenhouse gas effect and potentially contribute to economic prosperity through enhanced methane recovery. In 2009, the Virginia Center for Coal and Energy Research (VCCER) injected 907 tonnes of CO2 into …
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Modification and performance of activated carbon for CO2 sequestration in pervious concrete
… ∼ 5–7% of global anthropogenic carbon dioxide (CO2) emissions. Carbon capture and sequestration has been developed as one of several initiatives to help mitigate CO2 emissions associated with cement and concrete production. Pervious concrete, a class of porous concretes, has been developed as a …
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Experimental Investigation of Synthetic Fines Injection for Enhanced Residual CO2 Trapping during CO2 sequestration
… thesis presents an idea to enhancing residual CO2 trapping by injecting particles carried by the injected CO2. Natural fines migration can enhance residual CO₂ trapping through pore-throat blockage; however, this mechanism is mainly limited to clay-bearing sandstones containing mobile fines …
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Numerical Investigations of Geologic CO2 Sequestration Using Physics-Based and Machine Learning Modeling Strategies
Carbon capture and sequestration (CCS) is an engineering-based approach for mitigating excess anthropogenic CO2 emissions. Deep brine aquifers and basalt reservoirs have shown outstanding performance in CO2 storage based on their global widespread distribution and large storage capacity. Capillary …
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Roles of Nano- and Micro-Scale Subsurface Geochemical Reactions on Environmentally Sustainable Geologic CO2 Sequestration
<p>Geologic CO<sub>2</sub> sequestration: GCS) is a promising approach to reduce anthropogenic CO<sub>2</sub> emissions into the atmosphere. At GCS sites, injected CO<sub>2</sub> is kept in formation rock by an overlying low permeability caprock. During and after CO<sub>2</sub> injection, …
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Geo-chemo-mechanical modeling of sedimentary rocks: application to unconventional reservoirs and geological CO2 sequestration
… oil and gas from organic-rich shales, geological sequestration of CO2 in sandstone host rocks and storage of nuclear waste in impermeable rocks are among the most challenging problems worldwide. Technical challenges and environmental concerns slow the growth of organic-rich shale exploration and …
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Integrative Geophysical and Environmental Monitoring of a CO2 Sequestration and Enhanced Coalbed Methane Recovery Test in Central Appalachia
A storage and enhanced coalbed methane (CO2-ECBM) test will store up to 20,000 tons of carbon dioxide in a stacked coal reservoir in southwest Virginia. The test involves two phases of CO2 injection operations. Phase I was conducted from July 2, 2015 to April 15, 2016, and injected a total of 10, …
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A Data-Driven Approach for the Development of a Decision Making Framework for Geological CO2 Sequestration in Unmineable Coal Seams
… energy constrained world, carbon capture and sequestration can play an essential role in mitigating greenhouse gas emissions, while simultaneously maintaining a robust and affordable energy supply. This technology is an end-of-pipe solution that does not contribute to a decrease of the …
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GEOCHRONOLOGY, GEOCHEMISTRY, AND TECTONIC CHARACTERIZATION OF QUATERNARY LARGE-VOLUME TRAVERTINE DEPOSITS IN THE SOUTHWESTERN UNITED STATES AND THEIR IMPLICATIONS FOR CO2 SEQUESTRATION
… carbonic groundwater due to the degassing of CO2. Travertine deposits are often situated along faults that serve as conduits for CO2-charged groundwater and their geochemistry often records mixing of deeply-derived fluids and volatiles with shallow meteoric water. Travertines are surface …
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Sustainable management of natural stone waste. A proposed re-use for the production of mortars and the assessment of their potential CO2 sequestration capacity
… the production of mortars by investigating their CO2 sequestration capacity, since a percentage of CO2 emissions from the production of mortars is reabsorbed as the mortar hardens, owing to carbonation. Indeed, Portland cement production is responsible for 7% of annual CO2 emissions, due to the …
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Reservoir Characterization of the Broom Creek Formation For Carbon Dioxide Sequestration
… on the potential of carbon dioxide (CO2) sequestration in the Williston Basin’s Broom Creek Formation. The objective of the design is to characterize the Broom Creek’s reservoir properties and provide detailed results of CO2 sequestration capacity, plume migration, and safety level. …
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Comprehensive analysis of an ongoing CO2 storage project
Increase in CO2 emission has become an important issue over the years due to its environmental impacts as a greenhouse gas. The fact that these emissions are primarily derived from energy consumption and that 85% of the primary power is supplied by fossil fuels (Orr, 2004), makes the reduction of …
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Potential of CO2 Enhanced Oil Recovery and Sequestration in the Golden Pinnacle Reef Reservoir in the Williston Basin, North Dakota
… is developed to determine the feasibility of CO2 Enhanced Oil Recovery (EOR) and CO2 sequestration in the Golden Pinnacle Reef Reservoir in the Williston Basin, North Dakota; with a specific analysis of the Shell Golden #34X-34 (SWSE 34 T161N R87 W) well in Renville County, North Dakota, USA. …
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