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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…
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Keywords:
co2;
co2 flooding;
co2 sequestration;
gravity ... See more keywords
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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…
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Keywords:
co2 flooding;
stability influence;
emulsion;
stability ... See more keywords
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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,…
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Keywords:
co2 flooding;
oil;
crude oil;
drainage ... See more keywords
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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…
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Keywords:
co2;
ultrasound assisted;
oil recovery;
co2 flooding ... See more keywords
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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...
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Keywords:
behavior collaborative;
flooding behavior;
controlling factors;
investigation co2 ... See more keywords
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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....
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Keywords:
taylor dispersion;
nanopores miscible;
co2;
miscible co2 ... See more keywords
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Published in 2018 at "Journal of Chemistry"
DOI: 10.1155/2018/8623020
Abstract: The purpose of this report was to perform an experimental evaluation of enhanced oil recovery (EOR) using CO2 injection. A slim tube test and PVT experiment are used to determine the minimum miscibility pressure as…
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Keywords:
co2 injection;
block;
co2;
co2 water ... See more keywords
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Published in 2021 at "Geofluids"
DOI: 10.1155/2021/5552169
Abstract: Structures of pore-throat and permeability alteration caused by precipitation and the dissolution of rock matrix are serious problems during CO2 flooding into reservoirs for enhanced oil recovery (EOR). Experiments were conducted under pressure boost and…
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Keywords:
fluid;
co2;
scale forming;
co2 flooding ... See more keywords