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Keywords: surfactant solution
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Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE International Conference on Oilfield Chemistry, December 6–7, 2021
Paper Number: SPE-204378-MS
... solutions at the salinity of type I, II or III were prepared, respectively. Then the flow dynamics of these three surfactant solutions during imbibition and flooding process were visualized by the microfluidic experiments. Results show that the type I surfactant solution realizes the highest oil recovery...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, December 6–7, 2021
Paper Number: SPE-204324-MS
... to increase the sweep efficiency, and surfactant solution slug following is used for improve the displacement efficiency. The long term stability of DPG for 15 days ensures the efficiency of in-depth conformance control and its size can increase from its original 0.543μm to 35.5μm after aging for 7 days...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 8–9, 2019
Paper Number: SPE-193634-MS
... evaluated. Surfactant solutions at 1 wt% prepared in 1 wt% NaCl were aged at up to 250 °C in Parr reactors for up to 2 weeks. The degradation of the surfactants was quantified based on High Performance Liquid Chromatography profiles of the surfactants before and after the aging process. The foaming...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 3–5, 2017
Paper Number: SPE-184533-MS
... comprising cationic surfactants, the foam was most viscous and collapsed at 85% quality. Upstream Oil & Gas surfactant 16 acid foamability flow in porous media regime experiment surfactant solution enhanced recovery porous medium coreflood experiment surfactant Fluid Dynamics GLDA...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 3–5, 2017
Paper Number: SPE-184569-MS
... results also indicate that low-IFT foam diverts mostly surfactant solution into matrix because of (1) the mobility reduction due to foam in the fracture network, (2) significantly lower capillary entry pressure for surfactant solution compared to gas and (3) the increase of mobility to water in the matrix...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 13–15, 2015
Paper Number: SPE-173797-MS
... leave about 80% of the original oil in place (OOIP) in fractured carbonate reservoirs. Wettability alteration has received attention recently because carbonate formations are much more likely to be fractured and oil-wet. In highly fractured reservoirs, surfactant solutions can be injected...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 8–10, 2013
Paper Number: SPE-164126-MS
... with the brine at 25 ºC and 60 ºC and checked for any precipitation and phase separation. The chosen surfactant did not show any cloudiness or precipitation for three months. Then equal amounts of oil and surfactant solution were mixed and placed in a pipette at 60 ºC. The brine salinity was varied and the phase...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 8–10, 2013
Paper Number: SPE-164095-MS
... velocity Reservoir Surveillance Upstream Oil & Gas gas velocity surfactant concentration annular flow air-water flow surfactant solution gas flow rate experiment surfactant PPM surface tension liquid flow rate dynamic surface tension interface In gas wells, both gas and some...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 8–10, 2013
Paper Number: SPE-164090-MS
... of surfactant floods stabilized by gravity forces. enhanced recovery Fluid Dynamics displacement chemical flooding methods Upstream Oil & Gas aqueous surfactant solution waterflooding microemulsion phase flow in porous media critical velocity fractional flow curve gravity stable surfactant...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 20–22, 2009
Paper Number: SPE-121675-MS
... chemical flooding methods Brine micelle viscoelastic behaviour viscosity enhanced recovery concentration experiment microevaporation device formulation viscoelastic fluid injection surfactant solution surfactant concentration Upstream Oil & Gas phase diagram surfactant system low...
Proceedings Papers

Paper presented at the International Symposium on Oilfield Chemistry, February 28–March 2, 2007
Paper Number: SPE-106078-MS
... sequence of solvents as the cores. Adsorption Adsorption of surfactants onto rock material was measured in static and dynamic systems. To measure static adsorption, 2.0 g of crushed rock (53-300 μm) was added to 30 ml of surfactant solution and shaken for 24 h. The mixture was centrifruged...
Proceedings Papers

Paper presented at the International Symposium on Oilfield Chemistry, February 28–March 2, 2007
Paper Number: SPE-106402-MS
... (OOIP). After the oil production stopped, the water was replaced with a surfactant solution at a concentration of 1500 to 3500 ppm. The imbibition process then continued until no oil was produced. The incremental oil recovered varied from 0 to 48% OOIP; higher permeability and bulk volume of oil...
Proceedings Papers

Paper presented at the International Symposium on Oilfield Chemistry, February 28–March 2, 2007
Paper Number: SPE-106205-MS
... density surfactant solution limestone cube availability flow in porous media CD concentration PPM surfactant availability surfactant surfactant concentration equilibrium Flow Condition Introduction Surfactants are widely used in a large number of applications because...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, February 2–4, 2005
Paper Number: SPE-93009-MS
... is to investigate the mechanisms of wettability alteration by crude oil components and surfactants. Contact angles are measured on mineral plates treated with crude oils, crude oil components, and surfactants. Mineral surfaces are also studied by atomic force microscopy (AFM). Surfactant solution imbibition...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, February 2–4, 2005
Paper Number: SPE-93273-MS
..., about an inch in diameter equipped at the bottom with a perforated metal plate fitted with a 360-mesh screen. Air was blown at 10 ml/min from the bottom through a fixed amount of surfactant solution until foam was generated to fill the glass column. About 15 ml of surfactant solution was used...
Proceedings Papers

Paper presented at the International Symposium on Oilfield Chemistry, February 5–7, 2003
Paper Number: SPE-80237-MS
... sandstone interfacial tension upstream oil & gas concentration evaluation experiment 3 oil recovery surfactant solution brine chemical flooding methods surfactant enhanced recovery injection water river water salinity experiment spe 80237 waterflooding antisorb 1416 reservoir...
Proceedings Papers

Paper presented at the International Symposium on Oilfield Chemistry, February 5–7, 2003
Paper Number: SPE-80245-MS
.... In addition, the fluid partitioning was determined in real time using the X-ray computed tomography (CT) during the core floods. The experiments using quasi-homogeneous cores show that flow in a core containing surfactant solution (placement) exhibits a front-like pattern. An unexpected secondary liquid...
Proceedings Papers

Paper presented at the International Symposium on Oilfield Chemistry, February 5–7, 2003
Paper Number: SPE-80988-MS
... Abstract Oil recovery by water flooding in fractured formations is often dependent on spontaneous imbibition. However, spontaneous imbibition is usually insignificant in oil-wet, carbonate rocks. Sodium carbonate and anionic surfactant solutions are evaluated for enhancing oil recovery...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, March 2–5, 1993
Paper Number: SPE-25174-MS
... mineral concentration chromatographic effect quartz mechanism retention mechanism separation enhanced recovery ethoxylated sulfonate kaolinite surfactant reservoir core nonionic surfactant chemical flooding methods adsorption surfactant solution ethoxylated surfactant upstream oil...
Proceedings Papers

Paper presented at the SPE Oilfield and Geothermal Chemistry Symposium, June 1–3, 1983
Paper Number: SPE-11775-MS
.... This results in rapid drop in viscosity and lower displacement efficiency. The effectiveness of polymers is also severely limited under conditions of high salinity. In addition to this, another problem arises in micellar/polymer flooding. This technique involves the injection of a surfactant solution designed...

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