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   Articles with "co2 flooding" as a keyword



Effect of gravity segregation on CO2 flooding under various pressure conditions: Application to CO2 sequestration and oil production

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recommendations! Published in 2021 at "Energy"

DOI: 10.1016/j.energy.2021.120294

Abstract: Abstract This research evaluates the effect of gravity segregation on CO2 sequestration and oil production during CO2 flooding under immiscible, near-miscible, and miscible conditions. The core experiment results show that CO2 flooding recovery was seriously… read more here.

Keywords: co2; co2 flooding; co2 sequestration; gravity ... See more keywords
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Stability influence factors and mechanism of produced emulsion from CO2 flooding

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recommendations! Published in 2021 at "Journal of Molecular Liquids"

DOI: 10.1016/j.molliq.2021.115974

Abstract: Abstract CO2 flooding has been widely applied for enhanced oil recovery (EOR) in recent years, while the difficulty in demulsification of the produced fluid has become an urgent problem due to the specific physical and… read more here.

Keywords: co2 flooding; stability influence; emulsion; stability ... See more keywords

The evolution and influence factors of CO2 flooding crude oil defoaming behavior after depressurization

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recommendations! Published in 2021 at "Journal of Petroleum Science and Engineering"

DOI: 10.1016/j.petrol.2021.108996

Abstract: Abstract CO2 flooding crude oil may generate abundant foams in oil field separators after depressurization. A large amount of foams occupies most of the space in a separator and spends much time to burst, which,… read more here.

Keywords: co2 flooding; oil; crude oil; drainage ... See more keywords

Ultrasound-assisted CO2 flooding to improve oil recovery.

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recommendations! Published in 2017 at "Ultrasonics sonochemistry"

DOI: 10.1016/j.ultsonch.2016.09.026

Abstract: CO2 flooding process as a common enhanced oil recovery method may suffer from interface instability due to fingering and gravity override, therefore, in this study a method to improve the performance of CO2 flooding through… read more here.

Keywords: co2; ultrasound assisted; oil recovery; co2 flooding ... See more keywords

Investigation of the CO2 Flooding Behavior and Its Collaborative Controlling Factors

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recommendations! Published in 2020 at "Energy & Fuels"

DOI: 10.1021/acs.energyfuels.0c01286

Abstract: CO2 injection to enhance coalbed methane (CO2-ECBM) production is a promising technology for realizing the efficient exploitation of new energy resource, but its effect is cooperatively affected by... read more here.

Keywords: behavior collaborative; flooding behavior; controlling factors; investigation co2 ... See more keywords

Taylor Dispersion in Nanopores during Miscible CO2 Flooding: Molecular Dynamics Study

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recommendations! Published in 2020 at "Industrial & Engineering Chemistry Research"

DOI: 10.1021/acs.iecr.0c02669

Abstract: The miscible process between carbon dioxide (CO2) and oil in nanopore multiphase flow is essential for CO2-enhanced oil recovery (CO2-EOR) techniques, especially in low permeability oil reservoirs.... read more here.

Keywords: taylor dispersion; nanopores miscible; co2; miscible co2 ... See more keywords

Study on CO2 Flooding Crude Oil Production Characteristics and Factors Affecting Oil Flooding Efficiency in Tight Reservoirs

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recommendations! Published in 2025 at "ACS Omega"

DOI: 10.1021/acsomega.5c03555

Abstract: To clarify the influence mechanism of micronano pore-throat development characteristics on CO2 flooding efficiency and crude oil mobility degree in Block X of tight oil reservoirs, this study combined a long-consolidated tube model in the… read more here.

Keywords: flooding efficiency; efficiency; co2 flooding; oil ... See more keywords

Performance Evaluation of a Novel CO2 Flooding Thickening System for Low-Permeability Reservoirs and an Experimental Study on Enhanced Oil Recovery

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recommendations! Published in 2025 at "ACS Omega"

DOI: 10.1021/acsomega.5c07612

Abstract: To address the challenges associated with CO2 flooding in low-permeability reservoirsî—¸particularly inefficient gas injection and reduced displacement efficiency caused by viscous fingeringî—¸this study synthesized the thickener PVAc-S through the copolymerization of styrene and polyvinyl acetate,… read more here.

Keywords: system; permeability; co2 flooding; thickening system ... See more keywords

Mechanism of CO2 flooding in shale reservoirs - insights from nanofluids.

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recommendations! Published in 2024 at "Nanoscale"

DOI: 10.1039/d4nr02474e

Abstract: The development potential of CO2-enhanced shale oil recovery is significant, but shale reservoirs have developed nanoscale pores, often accompanied by fissures and micro/nanoscale fractures. This characteristic makes the micro-nanoscale CO2 flooding mechanism unclear. In this… read more here.

Keywords: co2; co2 flooding; shale reservoirs; mechanism co2 ... See more keywords
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Enhanced oil recovery in reservoirs via diffusion-driven CO2 flooding: Experimental insights and material balance modeling

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recommendations! Published in 2025 at "Physics of Fluids"

DOI: 10.1063/5.0279982

Abstract: CO 2 flooding is central to carbon utilization technologies, yet conventional waterflooding models fail to capture the complex interactions between CO2 and formation fluids. In this study, one- and two-dimensional nuclear magnetic resonance experiments reveal… read more here.

Keywords: co2 flooding; oil recovery; material balance; diffusion ... See more keywords

Prediction of the minimum miscibility pressure for CO2 flooding based on a physical information neural network algorithm

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recommendations! Published in 2024 at "Measurement Science and Technology"

DOI: 10.1088/1361-6501/ad6a77

Abstract: The minimum miscibility pressure (MMP) is a crucial parameter in assessing the miscibility of CO2 displacement and evaluating the effectiveness of oil displacement. Traditional methods for calculating MMP are intricate and time-consuming, involving numerous related… read more here.

Keywords: pressure; development; co2; co2 flooding ... See more keywords