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Keywords: concentration
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Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218157-MS
... was conducted at the desired temperature of 63 ˚C, facilitating the determination of optimal concentrations for the combination of surfactant and co-surfactant. Rock samples preparation Limestone outcrop samples were used to conduct spontaneous imbibition, coreflooding, and wettability alteration tests...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218177-MS
... by FTIR and the physicochemical properties of both APG and C-APG including compatibility, surface tension, interfacial tension (IFT) were evaluated. Both surfactants were compatible with the high-salinity water (HSW) and had a similar critical micelle concentration (CMC). However, C-APG exhibited a much...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218144-MS
... adsorption concentration hydrophilicity Introduction Due to carbonate high reactivity, carbonate petroleum reservoirs present complex diagenesis that results a some specific characteristics, when compared to sandstone petroleum reservoir, such as: (1) the presence of channels and fractures, which...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218135-MS
... of produced water for total dissolved solids (TDS) and surfactant concentration demonstrates the extent of treatment dispersion to the formation. A statistical model established performance expectations in the absence of surfactant treatment as a basis for evaluating the effectiveness and uncertainty of EOR...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218134-MS
... interfacial system to generate a dataset of viscosity values as a function of different temperatures, surfactant concentrations, and salinities. The viscosity testing and training data are computationally measured using the Einstein relation of the Green-Kubo formula. Several machine learning (ML) based...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218190-MS
... and stand. The ULA spindle was employed in the test, and viscosity was measured at spindle speeds of 6, 12 and 20 rpm. A comparative analysis of viscosity was then carried out for polymer solutions at concentrations of 900 ppm for the F pool and 1100 ppm for the G pool, respectively, with and without...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218153-MS
... modeling & simulation experiment oxygen asphaltene composition petroleum play type enhanced recovery calgary simulated core temperature residue assumption reaction heavy oil play combustion artificial intelligence flammable pseudo-component concentration fraction thermocouple gmol...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218166-MS
... Concentration 2,500 ppm Initial Oil Saturation 0.634 Table 2 High Salinity Polymer Preflush Injection Brine 11000ppm Base Brine+ 1.75% NaCl Injection Rate 0.13 ml/min Pore Volume 0.20 Polymer Concentration 3,000 ppm This study presents a novel approach...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218156-MS
... -soluble polymers including PDMS, PFA, P-1-D, and PVEE on minimum miscibility pressure during gas flooding. The dilute concentrations of polymers (1000 to 50000 ppm) were considered to dissolve in CO 2 at 60 and 80 °C. According to the cloud point pressure results, the small molecule CO 2 -soluble...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218138-MS
... and injection. If additional such steps are required, field QA/QC gets more challenging, and we run the risk of injecting an incorrect composition that can potentially damage these low permeability rocks. Our goal for the surfactant concentrate is that it should handle the conditions observed in the field...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218187-MS
... In the literature, there has been reported some fitting tracer models to facilitate the analysis for the estimation of oil saturation by characterizing the concentration produced in wells. One of the first relevant approaches to extrapolate tracer data at large times was described by Shook...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218159-MS
... and a polymer concentration of 2000 ppm, the delay factor is approximately 3%. With a remarkably high polymer retention of 200 µg/g, polymer retention might have a tremendous impact on the rates of oil displacement and the economic feasibility of polymer flooding. Several laboratory studies ( Lakatos et al...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218180-MS
... condition in the reservoir. The injection and production rates were balanced for the test duration. Bottom-hole temperature is about 85°C. geology geological subdiscipline tracer geologist enhanced recovery application concentration compound petroleum engineer society producer injection...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218179-MS
... geologist pvt measurement rock type enhanced recovery experiment concentration dispersion carbonate rock steam-assisted gravity drainage sandstone climate change displacement hnp experiment clastic rock waterflooding sagd chemical flooding methods breakthrough ooip geology subsurface...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218151-MS
... temperature, high formation brine salinity, high divalent ion concentration), frac fluids can destabilize due to the presence of polyacrylamide acting as a flocculant. Such behavior causes phase-separation and precipitation resulting in formation damage. Another scenario is the rapid production rate decline...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218184-MS
... flow in porous media geologist enhanced recovery reservoir concentration geological subdiscipline gel efficiency evaluation geology colombia application conference castro spe improved oil recovery conference injection polymer technology injector execution strength Introduction...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218181-MS
.... To achieve this goal, four gel systems were investigated. The influence of three parameters has been evaluated, namely polymer concentration, crosslinker concentration and aging temperature. Aging tests were performed at reservoir temperature and gelation tests at slightly lower temperature, representative...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 22–25, 2024
Paper Number: SPE-218236-MS
... to grow as the nitrate was injected gradually. This resulted in complete mitigation of the H 2 S generated supported by the NR-SOB oxidation equation. The 1D model was tuned by division factor and reaction rate constant to match better the experimental data for H 2 S and H 2 SO 4 concentrations’ change...

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