... density is high or the steam chambers grow more uniformly to the top of the reservoir. Conclusions Abstract Caprock integrity in steam-assisted gravity drainage (SAGD) has been evaluated by various researchers. However, most of these caprock integrity studies assume that the caprock...

... the way to kr og . The relevant details of the column simulation for this study are given in Table 3 . Abstract Understanding how SAGD works is important as most of the in-situ production of bitumen in Alberta is using SAGD technology. A key parameter in simulation-based SAGD performance...

... are desired, given its low recovery factor. Horizontal wells have proven to offer advantages for enhanced oil recovery (EOR), being used from the early stages of field development ( Jaime et al., 2010 ). These types of geometry have been used for the development of cyclic steam injections (CSS) and SAGD...

... polymer flooding and 13 Alkali-Surfactant-Polymer (ASP) flooding. Thermal methods, particularly SAGD & CSS are conducted for extra heavy oil and bitumen in oil sands. Another 31 of immiscible flooding projects are also identified. Factors contributing to success of these projects in respective fields...

... It is also possible to indirectly infer chamber growth from production data, and that would require a model that relates chamber growth and production. In addition to numerical simulation, other simplified mathematical or analytical models have been proposed for both SAGD and other solvent-based...

... Chemical additives for co-injection with steam at low dosages were evaluated for enhancement of SAGD operations. The additives were selected based on their commercial scalability, water solubility and transportability inside the SAGD chamber (volatility). A custom-designed oil-recovery experiment...

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... Summary Steam-assisted gravity drainage (SAGD) is the preferred thermal recovery method used to produce bitumen from Athabasca deposits in Alberta, Canada. SAGD operation is experiencing five stages: ramp-up, initial plateau, full-length plateau, wind-down and coalescence. The physics...

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... with this study and enhanced our understanding towards ISC kinetics but should be extended to different crude oil and reservoir rock pairs. bitumen upstream oil & gas thermal method sagd carbonate reservoir oil sand complex reservoir activation energy bitumen sample low temperature oxidation...

... Abstract Oil sand reservoirs play an important role in the economy of Canada due to their significant recoverable reserves. Due to the high viscosity of the oil in these reservoirs, conventional methods cannot be used for production. The steam-assisted gravity drainage (SAGD) method...

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... If not setup properly, long run-times are often the main limiting factor preventing the simulation of full field SAGD steam allocation models. Therefore, achieving the best performance possible out of the simulator is essential. For this case study the selection of numerical control parameters was based...

... Summary Over the last decade, steam assisted gravity drainage (SAGD) process has been successfully commercialized in Alberta and Saskatchewan thermal projects. Remediation of slotted liner wells in cases of erosion, or high gas/steam production later in life requires a different basis of design...

... Abstract Steam-assisted gravity drainage (SAGD) recovery process is strongly impacted by the spatial distributions of heterogeneous shale barriers. Though detailed compositional flow simulators are available for SAGD recovery performance evaluation, the simulation process is usually quite...

... Abstract Air injection into mature SAGD chambers is a promising method to sustain steam chamber pressures while reducing steam-to-oil-ratios (SOR) and increasing oil production in SAGD late life. The feasibility of attaining and sustaining a high temperature combustion front when injecting air...

... versions of SAGD and CSS recovery processes. While solvent is injected with steam, the mixture condensation temperature changes based on solvent partial pressure. In addition, water condensate creates a film which acts as a barrier and impacts solvent dissolution in oil. The solvent, which is not soluble...

... in a porous medium. Abstract This paper proposes a new criterion to estimate the impact of lean zones on thermal or thermal-solvent processes, such as SAGD, SA-SAGD, or EBRT (Imperial Oil's "Enhanced Bitumen Recovery Technology"). The interface stability of the steam/solvent chamber in the lean zone...

... and modeling the geomechanical effects observed while injecting steam for heavy oil recovery, specifically during SAGD (Steam-Assisted Gravity Drainage) operations. This workflow does not need an explicit, empirical table relating pressure to permeability and porosity; instead it uses a mechanical simulator...