New insights into application of nanoparticles for water-based enhanced oil recovery in carbonate reservoirs

Sina Rezaei Gomari, Yann Gorra Diallo Omar, Farida Amrouche, Meez Islam, Donglai Xu

    Research output: Contribution to journalArticle

    Abstract

    Crude oil, water and rock (CWR) surface chemistry is a key parameter in oil and gas recovery from hydrocarbon reservoirs. This paper presents the chemistry of CWR interaction in presence of two water soluble nanoparticles for carbonate rocks. Two most common nanoparticles of aluminium oxide (Al 2 O 3 ) and silica (SiO 2 ) were selected and utilised for this study. Calcite was first modified to an oil-wet system to resemble the reservoir wetting condition then treated with nano-fluids containing under study nanoparticles at different concentrations. Alteration of wettability was then quantified using contact angle measurements, and zeta potential analysis. The change in fluid chemistry of the water due to presence of nanoparticles was also monitored before and after treatment of carbonate rock. The results show that after treatment of the oil-wet samples with nano-fluids, the solution's pH decreased for SiO 2 while it increased slightly for Al 2 O 3 . The contact angle results show a decrease trend for both nanoparticles but more pronounced for Al 2 O 3 . These results are in line with zeta potential results in which very negative surface charge for an oil-wet rock was converted to less negative or even positive for certain concentrations of nano-particles. Floating phenomenon also applied to calculate the level of water percentage between floated and sank powder for the modified calcite where amount of water level increased significantly when nanoparticles added to water solutions. Comparison of all tests show that silica nano-fluid with concentration between 0.1 and 2 wt % can be efficient EOR agent. High salinity is definitely not a good option to formulate nano-fluids such as alumina and silica at high concentrations showing inverse effects.

    Original languageEnglish
    Pages (from-to)164-172
    Number of pages9
    JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
    Volume568
    Early online date10 Feb 2019
    DOIs
    Publication statusPublished - 5 May 2019

    Fingerprint

    oil recovery
    Carbonates
    carbonates
    Oils
    Nanoparticles
    Recovery
    nanoparticles
    Rocks
    Water
    rocks
    Fluids
    Silicon Dioxide
    water
    fluids
    Aluminum Oxide
    Calcium Carbonate
    Silica
    Calcite
    Petroleum
    Zeta potential

    Cite this

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    title = "New insights into application of nanoparticles for water-based enhanced oil recovery in carbonate reservoirs",
    abstract = "Crude oil, water and rock (CWR) surface chemistry is a key parameter in oil and gas recovery from hydrocarbon reservoirs. This paper presents the chemistry of CWR interaction in presence of two water soluble nanoparticles for carbonate rocks. Two most common nanoparticles of aluminium oxide (Al 2 O 3 ) and silica (SiO 2 ) were selected and utilised for this study. Calcite was first modified to an oil-wet system to resemble the reservoir wetting condition then treated with nano-fluids containing under study nanoparticles at different concentrations. Alteration of wettability was then quantified using contact angle measurements, and zeta potential analysis. The change in fluid chemistry of the water due to presence of nanoparticles was also monitored before and after treatment of carbonate rock. The results show that after treatment of the oil-wet samples with nano-fluids, the solution's pH decreased for SiO 2 while it increased slightly for Al 2 O 3 . The contact angle results show a decrease trend for both nanoparticles but more pronounced for Al 2 O 3 . These results are in line with zeta potential results in which very negative surface charge for an oil-wet rock was converted to less negative or even positive for certain concentrations of nano-particles. Floating phenomenon also applied to calculate the level of water percentage between floated and sank powder for the modified calcite where amount of water level increased significantly when nanoparticles added to water solutions. Comparison of all tests show that silica nano-fluid with concentration between 0.1 and 2 wt {\%} can be efficient EOR agent. High salinity is definitely not a good option to formulate nano-fluids such as alumina and silica at high concentrations showing inverse effects.",
    author = "{Rezaei Gomari}, Sina and {Gorra Diallo Omar}, Yann and Farida Amrouche and Meez Islam and Donglai Xu",
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    language = "English",
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    T1 - New insights into application of nanoparticles for water-based enhanced oil recovery in carbonate reservoirs

    AU - Rezaei Gomari, Sina

    AU - Gorra Diallo Omar, Yann

    AU - Amrouche, Farida

    AU - Islam, Meez

    AU - Xu, Donglai

    PY - 2019/5/5

    Y1 - 2019/5/5

    N2 - Crude oil, water and rock (CWR) surface chemistry is a key parameter in oil and gas recovery from hydrocarbon reservoirs. This paper presents the chemistry of CWR interaction in presence of two water soluble nanoparticles for carbonate rocks. Two most common nanoparticles of aluminium oxide (Al 2 O 3 ) and silica (SiO 2 ) were selected and utilised for this study. Calcite was first modified to an oil-wet system to resemble the reservoir wetting condition then treated with nano-fluids containing under study nanoparticles at different concentrations. Alteration of wettability was then quantified using contact angle measurements, and zeta potential analysis. The change in fluid chemistry of the water due to presence of nanoparticles was also monitored before and after treatment of carbonate rock. The results show that after treatment of the oil-wet samples with nano-fluids, the solution's pH decreased for SiO 2 while it increased slightly for Al 2 O 3 . The contact angle results show a decrease trend for both nanoparticles but more pronounced for Al 2 O 3 . These results are in line with zeta potential results in which very negative surface charge for an oil-wet rock was converted to less negative or even positive for certain concentrations of nano-particles. Floating phenomenon also applied to calculate the level of water percentage between floated and sank powder for the modified calcite where amount of water level increased significantly when nanoparticles added to water solutions. Comparison of all tests show that silica nano-fluid with concentration between 0.1 and 2 wt % can be efficient EOR agent. High salinity is definitely not a good option to formulate nano-fluids such as alumina and silica at high concentrations showing inverse effects.

    AB - Crude oil, water and rock (CWR) surface chemistry is a key parameter in oil and gas recovery from hydrocarbon reservoirs. This paper presents the chemistry of CWR interaction in presence of two water soluble nanoparticles for carbonate rocks. Two most common nanoparticles of aluminium oxide (Al 2 O 3 ) and silica (SiO 2 ) were selected and utilised for this study. Calcite was first modified to an oil-wet system to resemble the reservoir wetting condition then treated with nano-fluids containing under study nanoparticles at different concentrations. Alteration of wettability was then quantified using contact angle measurements, and zeta potential analysis. The change in fluid chemistry of the water due to presence of nanoparticles was also monitored before and after treatment of carbonate rock. The results show that after treatment of the oil-wet samples with nano-fluids, the solution's pH decreased for SiO 2 while it increased slightly for Al 2 O 3 . The contact angle results show a decrease trend for both nanoparticles but more pronounced for Al 2 O 3 . These results are in line with zeta potential results in which very negative surface charge for an oil-wet rock was converted to less negative or even positive for certain concentrations of nano-particles. Floating phenomenon also applied to calculate the level of water percentage between floated and sank powder for the modified calcite where amount of water level increased significantly when nanoparticles added to water solutions. Comparison of all tests show that silica nano-fluid with concentration between 0.1 and 2 wt % can be efficient EOR agent. High salinity is definitely not a good option to formulate nano-fluids such as alumina and silica at high concentrations showing inverse effects.

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