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Mohammad Taghizadeh Sarvestani - One of the best experts on this subject based on the ideXlab platform.

  • assessing the effects of different gas types on stability of sio2 nanoparticle foam for enhanced oil Recovery Purpose
    Journal of Molecular Liquids, 2020
    Co-Authors: Saeed Harati, Ali Esfandyari Bayat, Mohammad Taghizadeh Sarvestani
    Abstract:

    Abstract Application of silica nanoparticles (SiO2-NPs) as a foamer in CO2 foams has been widely investigated. Investigating the role of SiO2-NPs on making and stabilizing foams created by various gas types is still ongoing. This research attempted to experimentally determine and compare the impacts of SiO2-NPs on the stability of foams created by various available gas types including Nitrogen (N2), Methane (CH4), and carbon dioxide (CO2). For this Purpose, 0.12 wt% Sodium dodecyl sulfate was solved in NaCl solution 0.1 wt% and then SiO2-NPs at concentrations from 0.001 to 0.1 wt% were added to the solution. N2, CH4, and CO2 gases were injected to the NPs suspensions with a flow rate of 50 mL/min and the stability of generated foams was determined through measuring half-life time. Once the optimum NP concentration was found for each gas type, that foam was flooded to a sandpack to find and compare the amount of oil recoveries. The optimum concentration of SiO2-NPs in terms of foam stability was achieved 0.01 wt% for all the applied gas. The half-life time of CH4, N2, and CO2 foams at 0.01 wt% SiO2-NPs were achieved 1054, 1720, and 62 min, respectively. Besides that, the amounts of incremental oil recoveries by NP-CH4, NP-N2, and NP-CO2 foams were obtained 25%, 31%, and 19%, respectively that 2 to 6% were higher than foam flood tests without NPs. According to the obtained results, it is generally can be concluded that utilizing N2 and CH4 gases in foam flooding for EOR Purpose is more efficient than CO2.

Saeed Harati - One of the best experts on this subject based on the ideXlab platform.

  • assessing the effects of different gas types on stability of sio2 nanoparticle foam for enhanced oil Recovery Purpose
    Journal of Molecular Liquids, 2020
    Co-Authors: Saeed Harati, Ali Esfandyari Bayat, Mohammad Taghizadeh Sarvestani
    Abstract:

    Abstract Application of silica nanoparticles (SiO2-NPs) as a foamer in CO2 foams has been widely investigated. Investigating the role of SiO2-NPs on making and stabilizing foams created by various gas types is still ongoing. This research attempted to experimentally determine and compare the impacts of SiO2-NPs on the stability of foams created by various available gas types including Nitrogen (N2), Methane (CH4), and carbon dioxide (CO2). For this Purpose, 0.12 wt% Sodium dodecyl sulfate was solved in NaCl solution 0.1 wt% and then SiO2-NPs at concentrations from 0.001 to 0.1 wt% were added to the solution. N2, CH4, and CO2 gases were injected to the NPs suspensions with a flow rate of 50 mL/min and the stability of generated foams was determined through measuring half-life time. Once the optimum NP concentration was found for each gas type, that foam was flooded to a sandpack to find and compare the amount of oil recoveries. The optimum concentration of SiO2-NPs in terms of foam stability was achieved 0.01 wt% for all the applied gas. The half-life time of CH4, N2, and CO2 foams at 0.01 wt% SiO2-NPs were achieved 1054, 1720, and 62 min, respectively. Besides that, the amounts of incremental oil recoveries by NP-CH4, NP-N2, and NP-CO2 foams were obtained 25%, 31%, and 19%, respectively that 2 to 6% were higher than foam flood tests without NPs. According to the obtained results, it is generally can be concluded that utilizing N2 and CH4 gases in foam flooding for EOR Purpose is more efficient than CO2.

Ali Esfandyari Bayat - One of the best experts on this subject based on the ideXlab platform.

  • assessing the effects of different gas types on stability of sio2 nanoparticle foam for enhanced oil Recovery Purpose
    Journal of Molecular Liquids, 2020
    Co-Authors: Saeed Harati, Ali Esfandyari Bayat, Mohammad Taghizadeh Sarvestani
    Abstract:

    Abstract Application of silica nanoparticles (SiO2-NPs) as a foamer in CO2 foams has been widely investigated. Investigating the role of SiO2-NPs on making and stabilizing foams created by various gas types is still ongoing. This research attempted to experimentally determine and compare the impacts of SiO2-NPs on the stability of foams created by various available gas types including Nitrogen (N2), Methane (CH4), and carbon dioxide (CO2). For this Purpose, 0.12 wt% Sodium dodecyl sulfate was solved in NaCl solution 0.1 wt% and then SiO2-NPs at concentrations from 0.001 to 0.1 wt% were added to the solution. N2, CH4, and CO2 gases were injected to the NPs suspensions with a flow rate of 50 mL/min and the stability of generated foams was determined through measuring half-life time. Once the optimum NP concentration was found for each gas type, that foam was flooded to a sandpack to find and compare the amount of oil recoveries. The optimum concentration of SiO2-NPs in terms of foam stability was achieved 0.01 wt% for all the applied gas. The half-life time of CH4, N2, and CO2 foams at 0.01 wt% SiO2-NPs were achieved 1054, 1720, and 62 min, respectively. Besides that, the amounts of incremental oil recoveries by NP-CH4, NP-N2, and NP-CO2 foams were obtained 25%, 31%, and 19%, respectively that 2 to 6% were higher than foam flood tests without NPs. According to the obtained results, it is generally can be concluded that utilizing N2 and CH4 gases in foam flooding for EOR Purpose is more efficient than CO2.

Maurich David - One of the best experts on this subject based on the ideXlab platform.

  • The Investigation of Silica Nanoparticles-CO2 Foam Stability for Enhancing Oil Recovery Purpose
    'UIR Press', 2020
    Co-Authors: Maurich David
    Abstract:

    Carbon dioxide (CO2) gas injection is one of the most successful Enhanced Oil Recovery (EOR) methods. But the main problem that occurs in immiscible CO2 injection is the poor volumetric sweep efficiency which causes large quantities of the oil to be retained in pore spaces of reservoir. Although this problem can be improved through the injection of surfactant with CO2 gas where the surfactant will stabilize CO2 foam, this method still has some weaknesses due to foam size issue, surfactants compatibility problems with rocks and reservoir fluids and are less effective at high brine salinity and reservoir temperature such as typical oil reservoirs in Indonesia. This research aims to examine the stability of the foams/emulsions, compatibility and phase behavior of suspensions generated by hydrophobic silica nanoparticles on various salinity of formation water as well as to determine its effect on the mobility ratio parameter, which correlate indirectly with macroscopic sweep efficiency and oil Recovery factor. This research utilizes density, static foam, and viscosity test which was carried out on various concentrations of silica nanoparticles, brine salinity and phase volume ratio to obtain a stable foam/emulsion design. The results showed that silica nanoparticles can increase the viscosity of displacing fluid by generating emulsions or foams so that it can reduce the mobility ratio toward favorable mobility, while the level of stability of the emulsion or foam of the silica nanoparticles suspension is strongly influenced by concentration, salinity and phase volume ratio. The high resistance factor of the emulsions/foams generated by silica nanoparticles will promote better potential of these particles in producing more oil

Jesus Botett - One of the best experts on this subject based on the ideXlab platform.

  • influence of salinity and hardness on the static adsorption of an extended surfactant for an oil Recovery Purpose
    Journal of Petroleum Science and Engineering, 2020
    Co-Authors: Christian A Paternina, Alexandra K Londono, Miguel Rondon, Ronald Mercado, Jesus Botett
    Abstract:

    Abstract Injection of surfactants solutions is the most promise in chemical oil Recovery method for the reduction of the remaining oil in a reservoir at the end of its exploitation. Surfactant adsorption in a porous media is one of the main issues because an important amount of surfactant tends to adsorb on the surface of the grains of sand and clay, and this can limit its capacity of reducing the interfacial tension. In this work, the effect of the concentration of monovalent and divalent ions on adsorption was investigated, since most reservoirs connate waters exhibit different degrees of salinity and hardness. For this systematic study, experimental adsorption assessments were performed using aqueous solutions of an alcohol propoxy sulfate surfactant. The results show that by changing the surfactant concentration, salinity, or hardness of the water, the adsorption behavior was not monotonic, as suggested by the Langmuir or Freundlich adsorption isotherms models. This behavior demonstrates that the adsorption phenomenon is affected by many parameters of a reservoir that are not considered deeply in traditional kinetics models and must be studied more carefully, especially the effect of electrolytes.