... in the recovery tests; however, the experiments showed that capillary forces were important for efficient oil displacement from the low-permeability, water-wet cores used in this study. There was no direct link observed between generated pressure drops at high and low injection rates, including SI...

... residual oil. The retention of polymers was estimated by both the material balance method and the double-bank method. The polymer concentration in coreflood effluents was measured by both the total organic carbon (TOC) analyzer and the capillary tube pressure drop. The results demonstrated that in tight...

...Pål Ø. Andersen Summary Steady-state relative permeability experiments are performed by coinjection of two fluids through core plug samples. The relative permeabilities can be calculated using Darcy’s law from the stabilized pressure drop and saturation of the core if capillary end effects...

... of Petroleum Engineers flow in porous media polymer experiment chemical flooding methods upstream oil & gas viscosity enhanced recovery fluid dynamics pressure drop phase permeability foam rate surfactant half-life time apparent viscosity spe reservoir evaluation & engineering...

... database of K r and P c curves was generated based on existing mathematical models. This database was used to perform thousands of coreflood simulation runs representing oil-water drainage steady-state experiments. The results obtained from the corefloods including pressure drop and water saturation...

... water saturation pressure drop residual oil saturation bitumen upstream oil & gas sandpack saturation permeability relative-permeability curve different temperature capillary pressure bitumen water system water relative permeability injection Thermal‐enhanced oil recovery...

... media directional drilling complex reservoir structural geology fluid dynamics pressure drop oil sand sand control asset and portfolio management reservoir simulation field development optimization and planning production well artificial lift system enhanced recovery reservoir surveillance...

...% higher incremental recovery factor vs. lower‐concentration and higher‐MW HPAM 3630. The core‐scale pressure drop generated by HPAM 3130 is more than twice the pressure drop generated by HPAM 3630. Under low‐flux‐rate conditions at the core scale, shear forces dominate, and displacing fluid with higher...

... conducted to determine the effect of crude oil on different foam systems. Single‐ and dual‐coreflood experiments were conducted using Berea Sandstone and Boise Sandstone cores at 150°F. CO 2 foam was injected with 80% quality in tertiary‐recovery mode. The oil recovery and the pressure drop across the core...

... pressure is zero and leave a highly remaining-oil saturation at steady state (defined by a stable pressure drop and a zero oil‐production rate) compared to the residual‐oil saturation. Andersen et al. (2017c) derived analytical solutions describing how the capillary pressure and relative permeability...

... rates are determined to be much less than the water‐bearing cores because the fluids expand with the pressure drop along the journey to the surface. The results show that the tripping rate is the lowest for the oil‐bearing cores, particularly in the vicinity of the bubblepoint and gas critical pressure...

... 2018 productivity SPE Reservoir Evaluation Upstream Oil & Gas fracture-fluid leakoff conductivity Economide dv method equation dimensionless fracture conductivity pressure drop dimensionless productivity drainage area dimensionless pi Artificial Intelligence fracture design Proppant...

...Salam Al-Rbeawi Summary Reservoir performance of hydraulically fractured tight and shale-gas formations is affected by an extensive range of parameters. Non-Darcy flow is one of these parameters, characterized by a significant effect on near-wellbore pressure drop for horizontal wells and near...

... extension heterogeneous reservoir strength completion SPE Reservoir Evaluation waterflooding displacement fcc strength reservoir water breakthrough pressure drop production well awc num sim Oil Recovery Waterflood analysis and forecasting models, such as the DP method. Advanced well...

... methods gas injection method empirical foam model pressure drop sandpack column enhanced recovery Upstream Oil & Gas concentration experiment SPE Reservoir Evaluation Modeling & Simulation Fluid Dynamics flow rate foam flow surfactant concentration University experimental data...

... the pressure drop caused by the nonisothermal effects, and it can be used to correct the measurements. Field examples are discussed to illustrate this effect, and recommendations are made on how new technology can improve pressure measurements during well tests. To measure the effects on the pressure...

... pressure for CSI. High pressure drop in the horizontal steam injector can cause pressure near the toe region of the injector to be lower than the producer pressure. This results in poor steam injection and poor steam-chest development in that region, thus greatly reducing the efficiency of the thermal...

...-in.-diameter outcrop cores at 185°F. Oil recovery, pressure drop, and pH were observed and analyzed after each coreflood experiment. On the basis of the results attained, the Parker, Bandera, Gray Berea, and Buff Berea sandstone cores showed additional oil recoveries of 4.3, 9.2, 13.3, and 17.1% of original...

... recovery and pressure drop in reservoir simulations. Extensive experimental data in water-wet cores indicate that the heavy-oil recovery by waterfloods and polymer floods has a power-law correlation with a dimensionless number (named “viscous-finger number” in this paper), a combination of viscosity ratio...

... distribution of proppants regardless of proppant type. He et al. 2013 Analytical Synthetic Developed correlations to estimate the fracture conductivity as a function of reservoir pressure at any production stage. Proposed a method to calculate pressure drop along fracture under turbulent flow...