... Abstract The traditional definition of volumetric sweep efficiency sums the effects of both fingering (arising due to contrasts in mobility) and bypassing (arising due to contrasts in permeability as well as well placement). Accordingly, we cannot quantitatively attribute poor sweep to either...

..., flow diagnostics can compute proxies (e.g. time of flight, sweep efficiencies) that estimate flow behaviours in the reservoir at low computational cost (i.e. seconds) compared to full-physics simulations that may take much longer to run. However, flow diagnostics are not a replacement for traditional...

... reduce the viscosity of the oil and improve its mobility. In displacement processes, the frontal instability happening at the interface between solvent and oil can increase their surface contact area, while it also leads to earlier breakthrough time and less sweep efficiency if such instabilities develop...

..., field injectivity tests, pilot water injection and intensive surveillance plan. Water injection is part of field redevelopment plan and will increase recovery factor by 7.3%. Upstream Oil & Gas mobility ratio sweep efficiency fracture pressure injector viscosity producer enhanced...

... optimization injection capacity Modeling Challenge injection miscible gas injection EOS model sweep efficiency forecast MGI tight sour oil field frac reservoir simulation grid block frac height hydraulically fracced well permeability Introduction / Background Table 1 Summary of Field...

... Reynolds number, the fluid reaches into the dead pore even much deeper. The simulation results indicate the contribution of the viscoelasticity of polymer solutions to the micro-scale sweep efficiency. The non-dimensional model of simplified pore structures will contribute to the selection of suitable...

... sweep efficiency, and low mobility ratios, all of which can dramatically impair oil recoveries. Vast amounts of remaining oil-in-place have led operators to analyze opportunities to improve WF management and production. This paper presents an approach to increase recovery and improve performance...

... result shows that emulsification role is favor of further improvement of displacement efficiency on middle-high permeability layer, moreover, it could enhance sweep efficiency of low-middle layer. Alkaline scale could decrease inject capability of injection wells and produce capability of oil wells...

... mode. – Dynamic model as management tool with reasonable history match quality as assurance for reliable predictive mode of wells, areas and reservoir performance. – Define and quantify the volume of fluids-in-place, movable oil, residual oil and volumetric sweep efficiency to assess...

... production period and sweep efficiency by stretching of well pattern along the fracture' direction while squeezing lines in perpendicular direction and keeping average well spacing intact. Semi-analytical model for calculation of pressure distribution, streamlines and field performance parameters...