... producer well thermal method upstream oil & gas permeability layer saturation sweep efficiency steam-assisted gravity drainage enhanced recovery combustion front reservoir heterogeneity sandpack experiment sagd permeability combustion cell propagation horizontal well run 3...

... by wingcombustion tubes whose results are then used for field application. combustion front hot gas chamber upstream oil & gas horizontal production well experiment cosh process sweep efficiency directional drilling heated oil oxygen horizontal well combustion override enhanced recovery...

... sweep efficiencies in displacement recovery processes. The extended contact also means that the behavior of horizontal wells _ in terms of the flow into, and inside them _ will have a significant impact on reservoir recovery performance. As such, wellbore hydraulics cannot be ignored in reservoir...

... Abstract Forecasting volumetric sweep efficiency and oil recovery of a miscible flood is difficult, yet reliable production forecasts are required for economic analysis. Conventional decline curve analysis cannot be applied until well after the miscible flood is underway, and may...

... improved frontal contact area and increased producer to injector ratios, all of which can lead to improved economics. Potential pitfalls include reduced areal sweep efficiency, loss of injected fluids to up/downhole thief zones and wellbore failure due to altered stress states. This paper describes...

... has been reported. The location of the horizontal wellis very important with respect o both the sweep efficiency and the injectivityand must be in a good location to produce the desired results. The verticalpermeability must be moderate to high for horizontal wells to give goodresults, although rising...

... by high bottomhole pressures resulting in poor water injection conformance and reduced overall sweep efficiency and recovery. This paper discusses many commonly occurring water quality issues and how they impact injectivity, including damage due to injection of suspended solids, fines migration, clay...

... Abstract This paper deals with a field application of foam forming surfactants injected into the Pembina Ostracod 'G' Pool to reduce the gas mobility and to improve sweep efficiency. The presentation describes the laboratory evaluation of a number of surfactants considered to be suitable...

... sweep efficiency and ultimate recovery. A plot of water-oil ratio on semi log scale versus cumulative oil production on linear scale is used to demonstrate the incremental oil recovered from infill drilling. Decline curve analysis is used to estimate the incremental recovery and accelerated...

... Abstract Two factors determine oil recovery: displacement efficiency sweep efficiency For a miscible flood, high displacement efficiencies may be obtained. However, field performance (i.e. early sol vent breakthrough) shows that sweep efficiencies are generally low and may...

... Abstract This paper discusses the application of a numerical model to investigate the effect of water coning on the sweep efficiency and ultimate recovery from gas reservoirs with active aquifers similar to those found in the Middle Devonian of north east British Columbia. Reservoir properties...

... pressure and gas recovery efficiency. Results are illustrated using models and actual field experience. The results indicate that the effects of pressure depletion, sweep efficiency, and residual gas trapping during water influx can be isolated and examined. Reservoir abandonment pressure can be estimated...