... method. The experiments were conducted to evaluate CO 2 /liquid interface enhancement by measuring the interfacial tension and interfacial viscoelastic modulus. As per the heterogeneous sandpack flooding experiments, the profile control capacity and the performance of oil displacement using CO 2 foam...

... to dynamic experiments using sandpack, coreflow, and API conductivity testing methods. The evaluated formation materials were diagnosed with computed tomography (CT), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy to diagnose permeability damage mechanisms for given treatment...

... Abstract In a layered 2-D heterogeneous sandpack with 19:1 permeability contrast that was preferentially oil-wet, the recovery by waterflood was only 49.1% of original oil-in-place (OOIP) due to injected water flowing through high-permeability zone leaving low-permeability zone unswept...

... The combined supersaturated solution passes through the sandpack and scale crystals nucleate and grow in the pore space. The sandpack consists of a 600 mm long stainless steel pipe with 1 cm ID, filled with quartz sand and is initially saturated with the solution that contains the radiotracer...

...) gelation-time measurement and (2) effectiveness to limit permeability to water and thermal stability in sandpack flow tests at elevated temperatures. To date, more than 70 jobs have been successfully performed worldwide with the OCP at temperatures higher than 250°F. enhanced recovery Fluid Dynamics...

.... fracturing materials Upstream Oil & Gas sandpack recovery substrate hydraulic fracturing Brine closure stress polyacrylamide KCl proppant concentration zeta potential ZPA flowrate fluid recovery 40-mesh badger sand fracturing fluid silica flour spe 106112 conductivity gal Mgal flow...

...), (b) limit permeability to water at temperatures up to 375°F in sandpack flow experiments, and (c) provide long-term thermal stability in sandpack flow experiments at elevated temperature (up to one-year study). A commercially available polymer system that has been successfully used in field...

... engineers horizontal section concentration procedure caco 3 fluid loss control test cell sand control filter cake drill-in fluid operation sandpack elapsed time gravel-packing filter-cake thickness 0 horizontal interval spe 50715 petroleum engineer filtration laboratory simulation...

... Abstract A laboratory investigation of a polyacrylamide / aluminum citrate "colloidal dispersion" gel system was conducted to determine whether the system develops in-depth permeability modification in unconsolidated sandpacks. The study includes flow of the polymer and in situ gelation...

... of the KUSP1-MEP system and KUSPl-rock system was studied in several types of porous media. A second property of KUSP1 is that it can be gelled in a time-delayed manner by the addition of boric acid. Performance of the KUSP1-boric acid system was studied in sandpacks and Berea sandstone cores...

...Procedure After assembling the sandpack, it was conditioned by flushing with brine overnight before the permeability was evaluated. Since the packing method was very reproducible, we quote only the typical properties of the packs as follows; permeability, k ≈ 20.9 Darcy (± 3.5 Darcy), porosity...

... concentration relative permeability spe 25225 permeability reduction polymer water production permeability fluid dynamics high-temperature production well experiment mineral brine sandpack gel formulation geologist effect kohler geology viscosity adsorption limestone formulation united...

... injected into 40 to 170 mesh Ottawa sandpacks. The pore size distribution of the pack was measured. The permeability and effluent particle concentrations were monitored continuously. Experiments were conducted at different flow rates, pH values, ionic strengths, and particle concentrations with each clay...

... in sandpacks prepared from Ottawa sand using the aluminum citrate process which was undertaken to identify mechanisms causing permeability reduction and to improve process performance. Sandpacks with permeabilities between 1.73 and 2.92 darcies were used to eliminate the effects of clays on the process as well...

... are obtained by adding alcohols of C 6 -C 12 to petroleum sulfonate solutions. The high viscosity developed in the slug renders the addition of polymer unnecessary and improves the displacement of oil significantly. Little emulsion is produced during the core experiments. Sandpack experiments performed under...

... environments. The fluids were tested at 150, 200 and 250°C. The paper covers the implications of these results based on the time/temperature degradation of the polymers and the relative ease of removing the degraded polymer from sandpacks. fracturing fluid drilling fluid property frac fluid brine...