2016
DOI: 10.1021/acs.energyfuels.5b02774
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Multicomponent Solvent Co-injection with Steam in Heavy and Extra-Heavy Oil Reservoirs

Abstract: Expanding solvent steam assisted gravity drainage (ES-SAGD) is a hybrid steam−solvent oil recovery process that can be used to extract oil from heavy oil and bitumen reservoirs. It is a variation of the SAGD process in which only steam is used. In ES-SAGD, the mobilization of highly viscous oil is enhanced through a combination of heat and mass transfer processes, which results in significantly reduced volumes of water and natural gas needed to generate the injected steam, making ES-SAGD more energy efficient … Show more

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Cited by 65 publications
(27 citation statements)
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“…Because of steam overlap, we should consider the steam balance at radial and longitudinal direction [19]. At last, the equation of steam drive front has been established, following as equation 3.…”
Section: Prediction Model Of Steam Front Which Considering Pseudo-mobmentioning
confidence: 99%
“…Because of steam overlap, we should consider the steam balance at radial and longitudinal direction [19]. At last, the equation of steam drive front has been established, following as equation 3.…”
Section: Prediction Model Of Steam Front Which Considering Pseudo-mobmentioning
confidence: 99%
“…The injected solvent, which is gas condensate, is characterized by two pseudo components. Composition of the condensate used in numerical simulation has been previously reported elsewhere . Figure a shows the composition of the gas condensate used in numerical simulations.…”
Section: Numerical Simulationsmentioning
confidence: 99%
“… (a) The composition of the gas condensate used for solvent–water assisted electrical heating simulation, (b) Matched density and viscosity of the dead bitumen, (c) matched bitumen/condensate mixture viscosity used in numerical simulation http://wileyonlinelibrary.com]…”
Section: Numerical Simulationsmentioning
confidence: 99%
“…N 2 has good thermal insulation properties and large compressibility; it is clean, nonpoisonous, readily available, and inexpensive [31,32]. The solubility of CO 2 in heavy oil is 50-100 m 3 /m 3 at 6.0 MPa, and the volume expansion of crude oil is 10-20%, which reduces the oil viscosity by more than 80% [33,34]. Moreover, CO 2 is highly soluble in the asphaltene components, which can further enhance oil recovery [35].…”
Section: Introductionmentioning
confidence: 99%