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Keywords: co 2
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Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Conference, September 28–October 2, 2020
Paper Number: SPE-199928-MS
... (VL 1 L 2 ) equilibria for CO 2 and heavy oil mixtures with the addition of solvents, which normally occur at temperatures near the critical point of CO 2 with excessive amount of CO 2 ( Jørgensen and Stenby, 1995 ). Although three-phase vapour/liquid/liquid equilibria are often encountered when CO...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Conference, September 28–October 2, 2020
Paper Number: SPE-199949-MS
... fuel and O 2 concentration used for combustion. Different mole% water values (0 to 90%), N 2 /CO 2 ratios (0 to 7.43), and temperatures (80 to 450 °C) were investigated in order to evaluate many of the available options. Although oil production for water-hot gas injection was much lower than...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Conference, September 28–October 2, 2020
Paper Number: SPE-199966-MS
... for heavy oil emulsions is investigated to provide a better understanding of the interaction of emulsified oil with CH 4 and CO 2 and used as secondary or tertiary injection materials in heavy-oil fields. This type of investigation is a crucial step before any consideration for gas injection subsequent...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Conference, September 28–October 2, 2020
Paper Number: SPE-199934-MS
... The impact of CO 2 dissolution on volume factor and viscosity reduction rate of heavy oil was investigated through designed PVT test. The test was carried out under different temperatures (80°C, 120°C and 160°C) and different CO 2 /oil mole ratios (1:20, 1:10, 3:20, 1:5, 1:4). The experimental...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, March 13–14, 2018
Paper Number: SPE-189717-MS
... Upstream Oil & Gas depletion stability apparatus cold heavy oil production enhanced recovery expansion pressure rebound kinetic live oil liquid phase pressure rebound oil phase solution gas co 2 foamy oil generation kPa viscosity drawdown rate gas phase gas Bubble ch 4...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, March 13–14, 2018
Paper Number: SPE-189765-MS
... CCE tests were conducted on two C 3 -bitumen mixtures (Feed 1 and Feed 2) with the same PVT-cell and procedure used for CO 2 - and C 4 -bitumen systems, as described previously ( Eghbali and Dehghanpour, 2017 ). Abstract Co-injection of CO 2 or light hydrocarbons with steam...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, March 13–14, 2018
Paper Number: SPE-189729-MS
... during pressure depletion. This study presents a set of low field nuclear magnetic resonance (NMR) tests that were run on a 3,370 mPa·s viscosity heavy oil and several solvents: methane-propane and methane-CO 2 . NMR measures the relaxation rate of protons in the presence of magnetic fields. When fluid...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, February 15–16, 2017
Paper Number: SPE-185013-MS
... the effect of NCG. Results from lab experiment and Saleski Pilot show gas production higher than initial solution gas of the bitumen with substantially higher than expected concentration of CO 2 . To further understand these observations, a kinetic model is developed and calibrated to the observations...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, June 7–9, 2016
Paper Number: SPE-180718-MS
... Abstract In this study, several process alternatives for the permanent sequestration of carbon dioxide (CO 2 ) as solid carbonates are evaluated. Although the formation of mineral carbonates is thermodynamically favourable, it does not occur significantly due to kinetic limitations...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, June 9–11, 2015
Paper Number: SPE-174406-MS
... Abstract In consideration of the challenges of SAGD process such as the high watercut, the elevated temperature of produced fluid, and the heat loss to the overburden layer, combined CO 2 sequestration and electrical heating assisted gravity drainage (CSEAGD in short) is taken...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, June 9–11, 2015
Paper Number: SPE-174480-MS
... Abstract CO 2 flooding is one of the most promising techniques to enhance both light and heavy oil recovery. In light oil recovery, the production pressure in CO 2 flooding in general keeps constant in order to maintain the miscibility of injected CO 2 and crude oil; while in heavy oil...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, June 9–11, 2015
Paper Number: SPE-174464-MS
.... The gases are predominantly CO 2 and H 2 with traces of CH 4 (which is usually seen early in the experiments) and other low carbon hydrocarbons. The last ones are usually at the noise level of the analytical instruments. What is significant is that at the lower temperatures there is no apparent...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, June 9–11, 2015
Paper Number: SPE-174473-MS
... heterogeneity on these advanced processes has yet been presented in the literature. This paper provides one of the first comparative evaluations of the effects of reservoir heterogeneity on various IOR processes such as water flooding, CO 2 flooding, Low Salinity Waterflooding (LSW) and CO 2 LSWAG for a wider...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, June 9–11, 2015
Paper Number: SPE-174510-MS
..., and polymer allows us to better access the matrix and efficiently sweep the oil. This paper introduces a new approach to access the unrecovered heavy oil in fractured carbonate reservoirs. CO 2 foam and CO 2 PEF were used to decrease oil saturation after solvent injection, and their performance...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference-Canada, June 10–12, 2014
Paper Number: SPE-170015-MS
... to recover additional oil, the reservoir energy has to be rebuilt up and oil has to be displaced to production wells. Gas recharging technique as one of the important post-cold production methods is normally used in the heavy oil reservoirs not suitable for implementation of thermal recovery methods. CO 2...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference-Canada, June 10–12, 2014
Paper Number: SPE-170167-MS
... Abstract Nanoparticle stabilized CO 2 in water foam can overcome the low stability challenges facing surfactant foams in reservoir conditions. Foams are effective in mobility control against viscous fingering during gas injection in enhanced oil recovery. This study presents a microfluidic...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference-Canada, June 10–12, 2014
Paper Number: SPE-170057-MS
... is density of the heavy oil in kg/m 3 , P is pressure in kPa. Abstract Techniques have been developed to experimentally and theoretically determine phase behaviour and viscosity reduction of CO 2 -heavy oil systems at high pressures and elevated temperatures. Experimentally, vapour-liquid phase...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference-Canada, June 11–13, 2013
Paper Number: SPE-165383-MS
.... bitumen steam-assisted gravity drainage enhanced recovery complex reservoir oil sand SAGD thermal method flow in porous media cold production nb35-2 oilfield co 2 requirement oilfield Efficiency stimulation process heavy oil reservoir permeability non-condensable gas Fluid Dynamics...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference-Canada, June 11–13, 2013
Paper Number: SPE-165447-MS
... in the viscosity of heavy oil with the temperature increase makes the thermal recovery techniques the first choice for these reservoirs, cost associated with generating the required heat, excessive heat loss to the surrounding formations, and large amount of CO 2 emitted during these thermal processes are some...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference-Canada, June 11–13, 2013
Paper Number: SPE-165454-MS
... injectivity for the subsequent solvent injection. During the pressure depletion stage the model pressure was reduced in stages to ~900 kPaa. After the primary production stage, a solvent mixture of ~57/43 mol% C 1 /C 3 or ~57/43 mol% CO 2 /C 3 was continuously injected at a constant rate...

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