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Asphaltene Precipitation During Solvent Injection at Different Reservoir Conditions and Its Effects on Heavy-Oil Recovery from Oilsands
DownloadSpring 2014
Moreno Arciniegas, Laura Smith
Solvent injection at elevated temperatures (hot solvent or steam-solvent hybrid injection) into heavy-oil/bitumen reservoirs is a promising recovery process. It increases oil mobility via oil dilution, molecular diffusion, and gravity drainage. Meanwhile, injection of light hydrocarbon solvents...
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Lab to Field Scale Modeling of Low Temperature Air Injection with Hydrocarbon Solvents for Heavy-Oil Recovery in Naturally Fractured Reservoirs
DownloadFall 2015
Alternatives for enhanced oil recovery processes in heavy oil containing deep naturally fractured reservoirs (NFR) are limited due to excessive heat losses when steam is injected. Air injection at high temperature oxidation conditions (in-situ combustion) has been considered as an alternative to...
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Optimal Application Conditions for Variable Temperature Solvent Injection into Sands and Carbonates for Heavy-Oil and Bitumen Recovery
DownloadFall 2016
Steam injection is the most common technique in heavy-oil/bitumen recovery. However, the emission of greenhouse gases into the atmosphere, its water requirements, and excessive operational cost associated entail finding alternative solutions. One approach is combining steam and solvent injection...
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Spring 2024
Steam-assisted gravity drainage (SAGD) has proved to be a technically and commercially successful methodology for recovering heavy-oil in Canada. At present, there are 22 commercial SAGD projects with over 300 pads and 2,700 well pairs, contributing to over 1.5 million bbl/day of production. The...