Pore-level Investigation of Heavy Oil Recovery using Steam Assisted Gravity Drainage (SAGD)

Mohammadzadeh, Omid; Chatzis, Ioannis

doi:10.2523/13403-ms

Cited by 19 publications

(10 citation statements)

References 15 publications

(23 reference statements)

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“…They aim at a better understanding of some of the complex phenomena taking place in porous materials, in connection with flow of pore fluids (Mohammadzadeh and Chatzis, 2010), mechanical behavior (Gueguen and Bouteca, 1999), thermo-chemical processes and couplings between these effects (e.g. Renard et al, 2005;De Boever et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Pore-Scale Flow Simulations: Model Predictions Compared with Experiments on Bi-Dispersed Granular Assemblies

Tong

Catalano

Chareyre

2012

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Oil & Gas Science and Technology -Rev. IFP Energies nouvelles, Vol. 67 (2012), No. 5, pp. 743-752 Copyright © 2012, IFP Energies nouvelles DOI: 10.2516 Pore2Field -Flows and Mechanics in Natural Porous Media from Pore to Field Scale Pore2Field -Physique des écoulements en milieux poreux naturels : de l'échelle du pore à l'échelle du réservoir IFP Energies nouvelles International Conference Rencontres Scientifiques d'IFP Energies nouvellesOil & Gas Science and Technology -Rev. IFP Energies nouvelles, Vol. 67 (2012)

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Section: Introductionmentioning

confidence: 99%

Pore-Scale Flow Simulations: Model Predictions Compared with Experiments on Bi-Dispersed Granular Assemblies

Tong

Catalano

Chareyre

2012

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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“…2 shows a typical W/O emulsion produced from SAGD well in Hangingstone, Canada. As evident through some previous experimental studies on this phenomenon [3,6,[8][9][10][11], it has been suggested that W/O emulsions are mostly produced during the SAGD process. Especially, Sasaki et al [8,9] conducted experimental studies of SAGD process by using two-dimensional scaled reservoir model to investigate fluids flow characteristics in the steam chamber.…”

Section: Introduction mentioning

confidence: 85%

Measurement of Viscosity Alteration for Emulsion and Numerical Simulation on Bitumen Production by SAGD Considering In-situ Emulsification

Kumasaka¹,

Sasaki

Sugai

et al. 2016

JEASE

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Abstract:A thermal steam stimulation process, such as steam-assisted gravity drainage (SAGD), induces water-in-oil emulsion of heavy oil or bitumen throughout the production. The present study investigated the effects of in-situ emulsification in the oil sands reservoir for SAGD process. The viscosities of water-in-oil emulsions produced were measured with respect to water-oil ratio (W/O), shear rates, pressures and temperatures. The results therefore were employed to develop the numerical model of viscosity alteration. Numerical simulations of the SAGD bitumen production considering viscosity alteration were also carried out to investigate distribution characteristics of emulsion, water, and bitumen at steam chamber boundary and effects of in-situ emulsification on bitumen production behavior. With a model named SAGD-Emulsion Model, it was found that the net recovery factor of bitumen for this model is 5 to 10% higher than that of conventional SAGD simulation. Ultimately, it was found that the recovery factor of bitumen increased with W/O of emulsion generated in the reservoir since higher water content would invariably allow bitumen to flow at higher relative permeability, while the increase in viscosity merely delayed bitumen production.

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“…Both condensate and mobilized oil drain under the force of gravity. For the ceiling drainage, it happens when the steam rises and oil falls inside the steam chamber (Mohammadzadeh and Chatzis, 2009). The prorogation rate of counter-current flow is much lower as it is impeded by the condensate and oil, which is a function of steam temperature and vertical permeability (Good et al, 1994).…”

Section: Sagd Operation Process and Mechanismsmentioning

confidence: 99%

Chemical Additives and Foam to Enhance SAGD Performance

Etminan

Chen

2015

All Days

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Adding chemical additives with in-situ generation of foam is an approach to enhance SAGD (steam assisted gravity drainage) performance both in terms of oil production and SOR (steam oil ratio). Simulation study tells that, owing to gas mobility control, interfacial tension reduction and emulsification, the steam chamber profile is substantially controlled with a reduced heat loss, and the residual oil saturation drops dramatically. A heterogeneous model based on a Suncor Firebag project is further employed to testify that bubbles are conducive to improve volumetric sweep efficiency by diverting steam into low-permeable area. Simultaneously, foam favors to reduce the influences of top water zone and maintain a bowl-shaped and uniformly-developed steam chamber growth. Afterwards, an analytical method is introduced to further explain the physical mechanisms with a modified finger rising model, which shows that CAFA-SAGD (chemical additives and foam assisted SAGD) owns a lower finger rising velocity with less steam consumption.iii

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Pore-level Investigation of Heavy Oil Recovery using Steam Assisted Gravity Drainage (SAGD)

Cited by 19 publications

References 15 publications

Pore-Scale Flow Simulations: Model Predictions Compared with Experiments on Bi-Dispersed Granular Assemblies

Pore-Scale Flow Simulations: Model Predictions Compared with Experiments on Bi-Dispersed Granular Assemblies

Measurement of Viscosity Alteration for Emulsion and Numerical Simulation on Bitumen Production by SAGD Considering In-situ Emulsification

Chemical Additives and Foam to Enhance SAGD Performance

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