... Abstract SAGD has been implemented through a variety of different operating schemes. Determining the optimum and cost-effective strategy poses the greatest challenge to any SAGD reservoir. In addition to average rock quality, reservoir heterogeneities have a deep impact in steam chamber...

.... In the case of Fort Hills, 100 realizations of ore grade were created using conditional simulation. Ranking solely by total bitumen in place was insufficient, so a new measure of heterogeneity related to vertical ore-waste changes was developed and is discussed in this paper. These two measures were combined...

... processes. There are two reasons for this: first, geological heterogeneity in the form of variable porosity and permeability properties and secondly, fluid heterogeneities in the form of variable saturations, fluid compositions and thus viscosity. Geological heterogeneities refer to spatial variations...

... the theoretically predicted flood performance from analytical models for such systems, as calibrated by simulation studies, we developed the metrics for the estimation of a new parameter defined here as the thief zone heterogeneity index. ershaghi heterogeneity index information individual well high...

... by the exact downscaling method. different scale heterogeneity thermal method modeling & simulation steam-assisted gravity drainage scale model reservoir characterization block average block data point data reservoir simulation block datum enhanced recovery spe ps-cim choa 97874 well...

... for upscaling. Then, the effect of porous medium heterogeneity, a ubiquitous feature of oil reservoirs, on the front is considered, in particular, in the form of a layered reservoir system. The fronts in two layers can be coupled under certain conditions, depending on the permeability-thickness contrast R...

... Sufficient sampling of the expected vertical and horizontal heterogeneity as defined by variography. Accuracy in the simulation of pressure drawdown and associated production of gas in vicinity of wells. The ability to update the geologic model with new information with and 24-hour turn...

... ll-03 reservoir fracture characterization society of petroleum engineers fault system heterogeneity petroleum society spe ps-cim choa 78994 miocene upstream oil & gas south america government plane petroleum engineer venezuela government pre-miocene unconformity enhanced recovery...

..., the effectiveness becomes poorer and the challenge of changing steam stimulation into steamflooding has to be confronted. Because of heavy oil reservoirs in China characterized with complex geological conditions, deeply buried, multi-layers and serious heterogeneity, especially some complicated conditions occurring...

..., and SAGD with horizontal injector and producer. The effect of reservoir heterogeneities on process performance was also examined. CYS vertical performed significantly better than CYS horizontal both in terms of cumulative % OOIP recovery and SOR. HASD recovered more oil, though the initial production rate...