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In any geological sequestration projects, monitoring and verification are essential components in ensuring storage integrity. Seismic methods are regarded as a feasible way to monitor the subsurface CO2 because of their sensitivity to a rock’s pore space content. Therefore understanding the...
Membrane-based processes have the potential to overcome the limitations of conventional hydrogen separation techniques such as high energy consumption and environmental concerns. Natural zeolite membranes have recently been shown to demonstrate apparent molecular sieving of H2 from H2/CO2...
Characterizing the performance of ecosystem models across time scales: A spectral analysis of the North American Carbon Program site-level synthesisDownload
Black, T.A., Izaurralde, R.C., Lokupitiya, E., Munger, J.W., Schaefer, K., Weng, E., Richardson, A.D., Altaf Arain, M., Luo, Y., Ciais, P., Ricciuto, D.M., Stoy, P.C., Dietze, M.C., Poulter, B., Barr, A.G., Liu, S., Hollinger, D., Tian, H., Suyker, A.E., Verbeeck, H., Price, D.T., Grant, R.F., Peng, C., Baker, I.T., Vargas, R., Anderson, R.S., Tonitto, C., Sahoo, A.K., Chen, J.M., Flanagan, L.B., Riley, W.J., Wang, W., Lafleur, P., Gough, C.M., Verma, S.B., Kucharik, C.J.
Ecosystem models are important tools for diagnosing the carbon cycle and projecting its behavior across space and time. Despite the fact that ecosystems respond to drivers at multiple time scales, most assessments of model performance do not discriminate different time scales. Spectral methods,...
In this work, the phase behavior of Athabasca bitumen + CO2 and Maya crude oil + CO2 is briefed. A literature review is presented on the previous research works (mostly experimental studies) done on CO2 + heavy oil and similar mixtures. Important aspects of phase behavior such as type of phase...
Greenhouse Gas Emissions Following Tillage Reversal on a Black Chernozem and a Gray Luvisol in AlbertaDownload
Agricultural soils under long-term no till management have been well known to sequester atmospheric carbon in soil organic matter and to reduce emissions of greenhouse gases. Our study aimed at quantifying CO2 and N2O emissions from Black Chernozems and Gray Luvisols managed under long-term (~ 30...
Heavy Oil/Bitumen Recovery by Alternate Injection of Steam and Solvent (Hydrocarbon and CO2) in Fractured Carbonates and OilsandsDownload
The world energy demand is constantly increasing and fossil fuels are still by far the main energy resource that supplies the world energy consumption market, therefore increasing oil recovery from all types of reservoirs is an important matter. The burning of fossil fuels for energy purposes, on...
The objective of this dissertation was to find novel adsorbents addressing problems associated with acid gases. They are the most common contaminants in multiple aspects of petroleum processing and combustion gas clean up, which reduce the efficiency of petroleum refining and product quality....
As a follow-up method after CHOPS (Cold Heavy Oil Production with Sands), CSI (Cyclic Solvent Injection) was widely accepted in the oil industry. After injected gas solvents with high pressure are dissolved in a heavy-oil reservoir, produced oil shows dispersed gas-phase in the oil, which is...
Reservoir and geomechanical coupled simulation of CO2 sequestration and enhanced coalbed methane recoveryDownload
Coalbeds are an extremely complicated porous medium with characteristics of heterogeneity, dual porosity and stress sensitivity. In the past decades great achievements have been made to the simulation models of pressure depletion coalbed methane (CBM) recovery process and CO2 sequestration and...