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Showing 1 to 20 of 81 for “"oil sands"”.
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The Alberta Oil Sands
<p>The Alberta oil sands near Ft. McMurray, Alberta, have been estimated by many to contain at least 300,000,000,000 bbls of oil, and would therefore be classed as the largest potential oil field in the world. The oil sand deposit is considered to be non-marine in origin and consists mainly of very …
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Electrokinetic Dewatering of Oil Sands Tailings
Oil sands tailings are the final product of oil sands processing and in the form of slurry with very low solid content. After sedimentation, due to a low hydraulic conductivity of the tailings, both dewatering and consolidating the tailings are difficult. Since electrokinetic (EK) is an effective …
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Energy Recovery from Oil Sands Reservoirs
Alberta's oil sands are the third largest proven crude oil reserve in the world, after Saudi Arabia and Venezuela. The proven reserve is ~165.4 billion barrels. At original reservoir conditions, for in-situ methods, the bitumen is too viscous to extract directly with viscosities of the order of …
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Treatment of Oil-Sands Produced Water by Electrocoagulation
In Alberta, the oil-sands industry plays an important role in the local economy. However, the industry consumes a large amount of water, which is not economical. Significant capital and operating costs have been invested by the oil industries in the treatment of this contaminated water every year. …
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Mapping Groundwater Discharges to Rivers near Oil Sands Projects
Groundwater discharges in the western Canadian oil sands region impact river water quality. Mapping groundwater discharges into rivers in the oil sands region is important to ensure wastewater and steam injections remain sequestered, rather than eventually resurfacing. Saline springs comprised of …
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Stability of Depletion Chamber Edges in Oil Sands Recovery Processes
… the bitumen leading to a higher mobility of oil phase and second, non-condensable gas (NCG) that provides an insulative effect in a reservoir to reduce heat loss and consequently raising the thermal efficiency. Solvents most used in oil sands processes are C3 to C7 solvents whereas NCGs …
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Composition and activities of microbial communities in Alberta’s oil sands
… is currently receiving the most attention is oil sands. A focus of many companies with oil sands operations is to look for more environmentally friendly and still economically feasible methods to produce this resource. This thesis focuses on determining the microbial communities in Alberta’s …
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CO₂ mitigation costs for Canada and the Alberta Oil Sands
… regulation are heterogeneous. Canada, and her oil sands industry, is the focus of this CO₂ mitigation cost and climate change impacts study. Two Canadian policies, in line with the stated goals of the two largest Canadian political parties, have been modeled using MIT's Emission Prediction and …
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A study on chemical stabilization of Oil Sands Mature Fine Tailings
Oil Sands Mature Fine Tailings (MFT) are generated from extraction of bitumen from oil sands. Fine tailings contain significant fraction of clay minerals, which makes dewatering and consolidation difficult and time-consuming. In this thesis, chemical stabilization of MFT is investigated in an …
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Non-thermal Recovery of Heavy oil and Oil Sands Using Nanoparticle
Heavy oils and oil sand resources are considered the largest portion of known energy resources, comprising 70% of total resources. Still, there is potential to increase oil production from these resources to fulfill future global energy needs. There have long been serious critiques of the methods …
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Microbial Ecology of Subsurface Oil Sands Deposits in Northern Alberta, Canada
The subsurface Athabasca Oil Sands in northern Alberta, Canada, is an important yet understudied microbial habitat. Over geological time, progressive biodegradation of low molecular weight hydrocarbons by indigenous microorganisms has resulted in an enrichment of high molecular weight hydrocarbons …
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Integration of nuclear power with oil sands extraction projects in Canada
One of the largest oil reserves in the world is not in the Middle East or in Alaska, but in Canada. This fuel exists in the form of bitumen in Alberta's oil sands. While it takes a tremendous amount of energy to recover this bitumen and refine it into petroleum products, with oil prices nearing all …
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The Effect of Switchable Additives on Colloidal Interactions Found in Oil Sands
… additives affect colloidal interactions found in oil sands, in an effort to identify potential candidates for industrial use. Chemical force spectrometry was used to evaluate adhesion forces present in model oil sand systems. Organic/mineral and mineral/mineral interactions were investigated in …
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Recreating a functioning forest soil in reclaimed oil sands in northern Alberta
During oil-sands mining all vegetation cover, soil, overburden and oil-sand is removed, leaving pits several kilometres wide and hundreds of metres deep. These pits are reclaimed by a variety of treatments using mineral soil or a mixed peat and mineral soil as the capping layer and planted with …
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Accounting for Variability and Uncertainty in Life Cycle Assessments: Oil Sands Case Studies
Along the life cycle of oil sands-derived products, variability in terms of resource heterogeneity, operating decisions, as well as extraction and processing technologies affect a project’s GHG intensity. Previous LCAs that have quantified emissions from bitumen production and processing have not …
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Toxicity, morphological changes, and dissipation of oil sands naphthenic acids in Chlamydomonas reinhardtii
… components (NAFCs) are a toxic byproduct of oil sands extraction and refining in the Athabasca region of Alberta, Canada, accumulating with other contaminants in the large volumes of oil sands process water produced. NAFCs are incredibly complex mixtures identified as a contaminant of concern …
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Oligotrophication of downwind boreal lakes caused by oil sands-derived enhanced nutrient deposition
Development of the Athabasca Oil Sands Region (AOSR) in northern Alberta, Canada has resulted in the substantial release of emissions, such as reactive nitrogen (Nr) species and base cations, which can fertilize downwind lakes in the boreal forest of Saskatchewan. However, to address the potential …
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Experimental study of some factors affecting oil migration and accumulation in oil sands
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mining Engineering and Metallurgy, 1920.
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Development of Novel High Temperature Mixed Matrix Membranes (MMMs) for Oil Sands Wastewater Treatment
While oil sands production plays a significant role in Canada’s economy, the rise in oil sands production leads to increasing water abstraction and pollution. Effective treatment and reuse of oilsands process-affected water (OSPW) can be considered a strategical solution to addressing these issues. …
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