4.6 Review

Advances in enhanced oil recovery technologies for low permeability reservoirs

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Article Chemistry, Physical

Effect of in-situ emulsification of surfactant on the enhanced oil recovery in low-permeability reservoirs

Xiaoxiao Li et al.

Summary: Surfactant flooding technology has become an important method for enhancing oil recovery in low-permeability reservoirs. This study compared the behaviors of surfactants, including reducing interfacial tension and in-situ emulsification, and used a 2D heterogeneous model to examine their effects. The results showed that in-situ emulsification was more crucial for oil recovery, especially in cores with lower permeability. The strong emulsifying capacity of surfactant dispersed residual oil, blocked pores, and improved efficiency, while avoiding the formation of micro water channels.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2022)

Article Energy & Fuels

Soaking in CO2 huff-n-puff: A single-nanopore scale study

Do Yoon Moh et al.

Summary: The study investigates the soaking step of CO2 Huff-n-Puff in a single, 4 nm-wide calcite pore using molecular dynamics simulations. The results show that CO2 molecules can be adsorbed on pore walls and diffuse along the walls or into the pore's interior as free molecules. The movement of adsorbed and free CO2 molecules inside the pore obeys a specific scaling law, highlighting the importance of surface adsorption in the storage and transport of CO2 in unconventional oil reservoirs.
Article Energy & Fuels

Hybrid CO2-N2 huff-n-puff strategy in unlocking tight oil reservoirs

Songyan Li et al.

Summary: This study investigates the efficacy of hybrid CO2-N-2 gases as gas solvents for enhancing tight oil recovery through laboratory tests, finding that the optimal ratio of CO2-N-2 is 1:2 with a best oil recovery of 39.0%. It is observed that the first three HnP cycles typically have higher oil recovery, with subsequent cycles being less beneficial. The NMR-assisted coreflood tests reveal uneven residual oil distributions and the varying effectiveness of CO2 and N-2 HnP in different pore scales, where N-2 HnP shows better oil extraction ability in small pores.
Article Chemistry, Physical

Preparation and performance evaluation of an active nanofluid for enhanced oil recovery in ultra-low permeability reservoirs

Biao Zhou et al.

Summary: A new type of nanofluid using chemically modified ultra-small silicon dots was developed for enhanced oil recovery in ultra-low permeability reservoirs. The active SiDot nanofluid exhibited high interfacial activity, temperature and salinity resistance, and achieved a recovery rate higher than that of brine water and surfactants.

JOURNAL OF MOLECULAR LIQUIDS (2022)

Article Chemistry, Physical

Enhanced oil recovery mechanism by surfactant-silica nanoparticles imbibition in ultra-low permeability reservoirs

Mingwei Zhao et al.

Summary: In this study, a new type of nanofluid was prepared by mixing silica nanoparticles with anionic surfactant, and its application potential in high temperature and high salinity reservoirs was analyzed. The experimental results showed that the addition of nanofluids can significantly reduce the interfacial tension between oil and water, change the surface properties of rocks, and improve the imbibition recovery, demonstrating the great potential of nanofluids in enhanced oil recovery.

JOURNAL OF MOLECULAR LIQUIDS (2022)

Article Energy & Fuels

Experimental and numerical studies of rich gas Huff-n-Puff injection in tight formation

Evgeny Shilov et al.

Summary: The study focuses on rich gas injection in a tight oil reservoir in Russia using the Huff-n-Puff method, showing a high oil recovery rate at 30 MPa injection pressure. Numerical simulation suggests that extending the injection period can increase the recovery factor, while the duration of the soak period has less impact on it.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2022)

Article Energy & Fuels

In situ fluid and injection gas compatibility of huff-n-puff gas EOR in a low-permeability shale-sand-carbonate reservoir

Adi Junira et al.

Summary: The study highlights the importance of selecting appropriate injection gas for enhanced oil recovery in unconventional reservoirs. By optimizing the injection gas composition, oil recovery efficiency can be significantly increased.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2022)

Article Energy & Fuels

Laboratory study and field application of amphiphilic molybdenum disulfide nanosheets for enhanced oil recovery

Ming Qu et al.

Summary: Spherical nanoparticles have been widely studied for enhanced oil recovery, but there is a lack of research on nanosheets. In this study, amphiphilic molybdenum disulfide nanosheets were synthesized and shown to have significant effects on solid surface wettability and emulsion stability at ultra-low concentrations.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2022)

Article Energy & Fuels

Experimental study of spontaneous imbibition and CO2 huff and puff in shale oil reservoirs with NMR

Yukun Chen et al.

Summary: This study investigates the methods for enhancing shale oil recovery rates in the Jimsar sag, Junggar Basin, NW China. The results show that CO2 huff and puff method and surfactant imbibition method have a positive effect on improving oil recovery, while fracturing liquid imbibition method without surfactant performs poorly. Surfactants can enhance spontaneous imbibition oil recovery by approximately 18% more in the type II and III shale formations.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2022)

Article Chemistry, Multidisciplinary

Polymer-Surfactant Flooding in Low-Permeability Reservoirs: An Experimental Study

Haiying Liao et al.

Summary: This paper develops a new chemical formula for low-permeability reservoirs, which has been tested in laboratory experiments and field projects. The formula shows good injectivity and increased oil recovery efficiency in low-permeability reservoirs, making it a promising option for their development.

ACS OMEGA (2022)

Article Chemistry, Multidisciplinary

Microscopic Oil Displacement Mechanism of CO2 in Low- Permeability Heterogeneous Glutenite Reservoirs in the Junggar Basin

Wanfen Pu et al.

Summary: This study investigates the microscopic oil displacement mechanism of CO2 in low-permeability heterogeneous glutenite reservoirs (LPHGRs). The experimental results show that the interaction between CO2 and crude oil effectively displaces crude oil from macropores and medium pores, while having negligible effects on small pores. These findings provide important indicators for CO2 development in LPHGRs.

ACS OMEGA (2022)

Article Chemistry, Multidisciplinary

Quantitative Investigation of Water Sensitivity and Water Locking Damages on a Low-Permeability Reservoir Using the Core Flooding Experiment and NMR Test

Yizheng Li et al.

Summary: This paper presents a quantitative assessment of water sensitivity and water locking damage in sandstone oil reservoir using core flooding experiments, NMR T-2 relaxation tests, and XRD tests. The results show that water sensitivity and water locking damages significantly reduce the permeability and porosity of the core samples.

ACS OMEGA (2022)

Article Energy & Fuels

Flow characteristics and EOR mechanism of foam flooding in fractured vuggy reservoirs

Zhengxiao Xu et al.

Summary: Deep fractured vuggy reservoirs are characterized by complex structures and strong heterogeneity. Foam flooding can improve oil recovery. Using a microetched physical model, foam stability and flow characteristics were assessed, and the EOR mechanism was analyzed.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2022)

Article Energy & Fuels

Mechanism study of spontaneous imbibition with lower-phase nano-emulsion in tight reservoirs

Ming Qu et al.

Summary: Spontaneous imbibition is a promising enhanced oil recovery method for tight reservoirs, but its mechanisms are still unclear. In this study, the mechanisms were revealed using a self-prepared novel lower-phase nano-emulsion (LWPNE). Experimental results show that LWPNE can improve the oil recovery by altering the contact angle and interfacial tension.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2022)

Article Energy & Fuels

Permeability and heterogeneity adaptability of surfactant-alternating-gas foam for recovering oil from low-permeability reservoirs

Ming -Chen Ding et al.

Summary: This paper focuses on the stability, plugging capacity, conformance control, and oil recovery performance of surfactant-alternating-gas (SAG) foam in low-permeability reservoirs. Experimental results show that SAG foam is highly stable in micron-sized channels and porous media, making it suitable for enhanced oil recovery (EOR). The foam can passively adjust its diameter to match the pore size, providing excellent injectability and deep migration capacity. The SAG foam exhibits reduced plugging capacity but increased incremental oil recovery with decreased permeability. However, there is a limiting heterogeneity for SAG application, where the foam becomes ineffective when the permeability contrast exceeds a certain limit.

PETROLEUM SCIENCE (2022)

Review Energy & Fuels

A comprehensive review of in-situ polymer gel simulation for conformance control

Baojun Bai et al.

Summary: This paper provides a comprehensive review of current numerical simulation studies on gel treatment in mature oilfields. It identifies the problems in existing simulation studies and suggests future research directions. The review highlights the importance of considering important mechanisms and accurately evaluating the performance of in-situ gel treatment.

PETROLEUM SCIENCE (2022)

Article Energy & Fuels

Preparation and properties of an acid-resistant preformed particle gel for conformance control

Bobo Zhou et al.

Summary: In this study, an acid-resistant preformed particle gel (AR-PPG) was prepared using acrylamide, N,N'-methylene bisacrylamide, and dimethyldiallylammonium chloride through radical polymerization. The AR-PPG exhibited improved swelling, shearing resistance, and viscoelastic properties in acidic environments compared to conventional PPG. Furthermore, a conformance control system composed of AR-PPG dispersed in cationic polyacrylamide solution showed good dispersion stability and achieved a plugging rate of 70.8% in low permeability cores after supercritical CO2 flooding, providing a potential alternative material for plugging and conformance control in oilfields.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2021)

Article Chemistry, Physical

Progress of polymer gels for conformance control in oilfield

Wanli Kang et al.

Summary: The review highlights the importance of researching polymer gel technology in oilfield applications, discussing both its innovation and application aspects. In addition, it emphasizes the challenges and future prospects faced by polymer gels.

ADVANCES IN COLLOID AND INTERFACE SCIENCE (2021)

Article Energy & Fuels

New Technique for Enhancing Oil Recovery from Low-Permeability Reservoirs: The Synergy of Silica Nanoparticles and Biosurfactant

Di Wang et al.

Summary: Bio-nanofluid, composed of biosurfactant and silicon dioxide nanoparticles, shows potential as an enhanced oil recovery agent for low-permeability reservoirs, altering the interface properties for better oil displacement efficiency. The composition, exposure time, and injection scheme of the bio-nanofluid significantly impact oil recovery efficiency.

ENERGY & FUELS (2021)

Article Energy & Fuels

Experimental study on dynamic characteristics of low temperature oxidation for Bohai offshore light oil under reservoir conditions

Hao Chen et al.

Summary: This study investigated the low temperature oxidation (LTO) of Bohai offshore light oil under realistic reservoir conditions, revealing the characteristics and mechanisms of LTO for light oil. Pressure was found to promote the LTO of light oil, with the process potentially involving multiple oxidation mechanisms. The results provide insights for the LTO of light oil reservoir and the potential of air flooding for enhanced oil recovery projects.
Article Chemistry, Physical

Influence of different oil types on the stability and oil displacement performance of gel foams

Nanjun Lai et al.

Summary: This study investigated the impact of different types of crude oil on the stability and oil displacement ability of gel foam systems. The results show that crude oil with higher concentrations of heavy components contributes to higher foam stability and enhanced oil recovery. Oil-bearing gel foam demonstrates good performance in hindering the movement of oil droplets and increasing production.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2021)

Article Chemistry, Physical

Carboxyl/alkyl composite silica-based amphiphilic nanoparticles enhanced spontaneous imbibition of low permeability sandstone rocks at reservoir conditions

Yun Bai et al.

Summary: The study synthesized carboxyl/alkyl composite silica-based amphiphilic nanoparticles, which could stably disperse in water-based nanofluids, improve rock wettability, and enhance spontaneous imbibition process.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2021)

Article Chemistry, Physical

Fatty alcohol polyoxyethylene ether sulfonate for foam flooding in high-salinity and high-temperature reservoir conditions

Xiaomin Liu et al.

Summary: The synthesized anionic-nonionic combined surfactant shows great potential as a foaming agent for improved sweep efficiency in high salinity and high temperature reservoirs. By optimizing the mixture ratio and total concentration, the maximum composite foaming index can be obtained during foam flooding operations.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2021)

Article Chemistry, Multidisciplinary

Effect of Displacement Pressure on Oil-Water Relative Permeability for Extra-Low-Permeability Reservoirs

Qing Liu et al.

Summary: The oil-water relative permeability in extra-low-permeability reservoirs is influenced by pore throat size and pressure gradient. As displacement pressure increases, both oil and water relative permeability increase, leading to a decrease in residual oil saturation and an improvement in the range of two-phase flow zone.

ACS OMEGA (2021)

Article Chemistry, Physical

CO2-responsive preformed gel particles with interpenetrating networks for controlling CO2 breakthrough in tight reservoirs

Wan-fen Pu et al.

Summary: By synthesizing novel CO2-responsive preformed gel particles with interpenetrating networks (IPN-ASSAP), the breakthrough of CO2 can be effectively mitigated and plugging efficiency can be improved. Experimental results indicated that IPN-PAASP has great potential for fracture plugging during CO2 flooding.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2021)

Review Energy & Fuels

A Critical Review of Osmosis-Associated Imbibition in Unconventional Formations

Zhou Zhou et al.

Summary: This study emphasizes on the significance of imbibition in unconventional formations, discussing key factors influencing the process and exploring the role of osmotic forces in fluid imbibition.

ENERGIES (2021)

Article Energy & Fuels

Influence of Heterogeneity on Nitrogen Foam Flooding in Low-Permeability Light Oil Reservoirs

Mengyu Wang et al.

Summary: Through microscopic visualization flooding experiments and NMR monitoring double-core flooding experiments, this study found that nitrogen foam flooding can block main flow channels in strongly heterogeneous reservoirs and displace large flaky residual oil. The recovery contrast of foam flooding between relatively low-permeability and high-permeability cores increases with permeability contrast, and foam flooding can significantly enhance oil recovery in small pores that were not displaced by water flooding.

ENERGY & FUELS (2021)

Article Energy & Fuels

Wormlike micelles properties and oil displacement efficiency of a salt-tolerant C22-tailed amidosulfobetaine surfactant

Yu Bai et al.

Summary: This study systematically investigates the properties and oil displacement performance of C22-tailed amidosulfobetaine surfactant EHSB under high salinity conditions, comparing it with the C16-tailed counterpart HDPS. The results demonstrate that EHSB exhibits higher solubility, better rheology behaviors, and more efficient oil recovery capabilities than HDPS, making it a promising option for chemical flooding in offshore oilfields.

ENERGY EXPLORATION & EXPLOITATION (2021)

Article Energy & Fuels

Experimental study on EOR potential of water-in-oil emulsion via CO2/N2 triggered wormlike micelle solution

Dai-jun Du et al.

Summary: The study suggests that CO2-TWMS has the potential to significantly enhance oil recovery in waterflooded heterogeneous reservoirs.
Article Energy & Fuels

A non-aqueous foam concept for improving hydrocarbon miscible flooding in low permeability oil formations

Chao-Yu Sie et al.

Summary: This study evaluates an unconventional foam process to improve miscible displacement in low permeability carbonate cores, showing that non-aqueous foam-assisted miscible displacement can achieve promising ultimate recovery factors while significantly reducing the amount of injected MNGLs.
Article Chemistry, Applied

Enhancing Oil Recovery by Low Concentration of Alkylaryl Sulfonate Surfactant without Ultralow Interfacial Tension

Fuxing Zhan et al.

Summary: Surfactant flooding, a critical method in enhanced oil recovery, has been believed to work by forming microemulsions with very low interfacial tension. However, experiments have shown that even at low concentrations, surfactants can help increase oil recovery efficiency by solubilizing oil into micelles, suggesting a new mechanism for enhanced oil recovery.

JOURNAL OF SURFACTANTS AND DETERGENTS (2021)

Review Energy & Fuels

A Critical Review of Enhanced Oil Recovery by Imbibition: Theory and Practice

Weibing Tian et al.

Summary: Imbibition plays a crucial role in enhanced oil recovery, benefiting reservoirs like fractured ones, conventionally developed by water-injection, and unconventional ones with abundant micro-nanopores. Understanding the mechanisms and governing factors of EOR by imbibition can contribute to better exploitation of oil and gas resources.

ENERGY & FUELS (2021)

Article Energy & Fuels

A model for interpretation of nanoparticle-assisted oil recovery: Numerical study of nanoparticle-enhanced spontaneous imbibition experiments

Razieh Khosravi et al.

Summary: This study introduces a novel workflow to interpret nanoparticle-enhanced oil recovery processes, demonstrating a dynamic wettability alteration approach to mimic the transition of rock wettability. The proposed model equations are solved numerically using a finite difference scheme and validated through experimental results, confirming the validity of the approach for modeling nanoparticle-assisted oil recovery processes. The findings provide insights into the performance of nanoparticles in enhanced oil recovery processes.
Article Chemistry, Physical

The shear stability mechanism of cyclodextrin polymer and amphiphilic polymer inclusion gels

Bobo Zhou et al.

Summary: The study introduces CADC inclusion gel, which improves the shear stability of the gel by reorganizing amphiphilic polymer with cyclodextrin structure. The inclusion gel solves the issue of poor shear resistance ability of amphiphilic polymer gel and has the potential to replace it for water shutoff applications in oilfield.

JOURNAL OF MOLECULAR LIQUIDS (2021)

Article Energy & Fuels

A novel model for oil recovery estimate in heterogeneous low-permeability and tight reservoirs with pseudo threshold pressure gradient

Xuedong Shi et al.

Summary: PTPG has a power function relationship with permeability and is influenced by the coefficient of permeability variation, average permeability, and production rate. The coefficient of permeability variation has the greatest impact on oil recovery factor in low-permeability reservoirs, with a rapid decrease in oil recovery factor when the coefficient exceeds a certain value.

ENERGY REPORTS (2021)

Article Energy & Fuels

Spontaneous imbibition characteristics of carbon nanofluids in carbonate reservoirs

Sivabalan Sakthivel et al.

Summary: This study demonstrated the effectiveness of CND and GS8 in altering wettability at low concentrations, with both additives leading to about 22%-25% incremental oil recovery when used in seawater. CND showed a strong positive effect on wettability across all samples, making it a strong candidate for EOR, while GS8 was most efficient in macropores but less so in mesopores and micropores. Rock-oil-brine contact angle and interfacial tension measurements supported the findings and suggested CND as a viable and economical alternative in harsh carbonate reservoir environments.

ENERGY REPORTS (2021)

Article Energy & Fuels

The contribution of low temperature oxidation of heavy crude oil to oil displacement efficiency during air injection in low permeability reservoirs

Yiqiang Li et al.

Summary: The study evaluated the effects of different oxygen-containing air on enhanced oil recovery in low permeability artificial cores through displacement experiments. Results showed that increasing oxygen content can drive more crude oil at higher temperature and pressure, but the impact of oxygen concentration on oil displacement efficiency is opposite at lower reaction temperatures. This suggests that the mechanism of low temperature oxidation of reservoir crude oil for enhanced recovery of gas drive varies under different temperature and pressure conditions.

PETROLEUM SCIENCE AND TECHNOLOGY (2021)

Article Energy & Fuels

Oil production performance and reservoir damage distribution of miscible CO2 soaking-alternating-gas (CO2-SAG) flooding in low permeability heterogeneous sandstone reservoirs

Qian Wang et al.

Summary: Miscible CO2-SAG flooding, by adding a CO2 soaking process after CO2 breakthrough, improves the recovery and permeability variation during CO2 flooding, especially in areas with low permeability and high residual oil saturation. The soaking process leads to more homogeneous distribution of permeability decline and a greater increase in permeability decline, with significant improvement in recovery observed in lower permeability cores.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2021)

Article Geochemistry & Geophysics

Experimental Study on the EOR Performance of Imbibition and Huff and Puff in Fractured Tight Oil Reservoirs

Zilin Zhang et al.

Summary: The study found that spontaneous imbibition of imbibition fluids in tight cores is slow, but the oil recovery factor can be relatively high, up to 13.42% in cracked cores. Compared to injecting imbibition liquids, injecting CO2 resulted in significantly higher final oil recovery in dynamic imbibition experiments due to its excellent miscibility effect. CO2 injection mainly occurred in the primary displacement stage, while imbibition fluids played a role during production after well shut-in, increasing the oil recovery factor by 7.35%-11.64%. The influence of the huff and puff mode of CO2 on EOR performance is greater than that of imbibition fluids because of its more sensitive compressibility and mass transfer rate. A high oil recovery factor can be obtained if the depletion production is conducted first, followed by a huff and puff operation. Understanding the mass transfer characteristics of CO2 and imbibition fluids in tight oil reservoirs can guide fracturing parameter design.

LITHOSPHERE (2021)

Article Energy & Fuels

Enhancing tight oil recovery using CO2 huff and puff injection: An experimental study of the influencing factors

MingChen Ding et al.

Summary: The study demonstrates that CO2 huff-n-puff injection can effectively recover tight matrix oil, with an optimal cycle regime determined by factors such as matrix permeability and size. Below 30.0 md permeability, the effectiveness of CO2 huff-n-puff is significantly weakened, while increasing matrix size reduces oil recovery, albeit permeability having a stronger effect on EOR overall.

JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING (2021)

Article Geosciences, Multidisciplinary

Immiscible CO2 Flooding Efficiency in Low-Permeability Reservoirs: An Experimental Investigation of Residual Oil Distribution

Ying Yang et al.

Summary: This study experimentally showed that immiscible CO2 can effectively mobilize oil distribution in different permeability core samples and impact displacement efficiency. With the increase of permeability, the contribution of cluster and intergranular pore oil distribution patterns to displacement efficiency increases.

FRONTIERS IN EARTH SCIENCE (2021)

Article Energy & Fuels

Experimental study on the mechanism of adsorption-improved imbibition in oil-wet tight sandstone by a nonionic surfactant for enhanced oil recovery

Yong-Peng Sun et al.

Summary: In recent years, surfactants have been widely used in tight oil reservoirs to alter wettability and improve oil recovery rates. Studies have shown that an appropriate amount of surfactant can effectively enhance imbibition recovery rates in oil-wet samples.

PETROLEUM SCIENCE (2021)

Article Chemistry, Multidisciplinary

Flow behaviors of nitrogen and foams in micro-visual fracture-vuggy structures

Tuo Liang et al.

Summary: This study investigates the dynamic flow behaviors of nitrogen and foam in fracture-vuggy structures, revealing that foam flooding is more effective in improving swept volume and oil displacement efficiency. The pressure difference at the curved oil-gas interface plays a significant role in the flow characteristics of nitrogen and foam.

RSC ADVANCES (2021)

Article Energy & Fuels

Dynamic characteristics and influencing factors of CO2 huff and puff in tight oil reservoirs

Tang Xiang et al.

Summary: The development process of CO2 huff and puff experiments can be divided into four stages, with the production of gas with some oil and high-speed oil production stages being the main contributors to oil recovery. The reasonable CO2 injection volume and development speed are the key factors affecting oil recovery.

PETROLEUM EXPLORATION AND DEVELOPMENT (2021)

Article Energy & Fuels

Experimental study and field demonstration of air-foam flooding for heavy oil EOR

Liyuan Lang et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2020)

Article Energy & Fuels

Pre-Darcy flow behavior of CO2 Huff-n-Puff development in Fuyu tight formation: Experiment and numerical evaluation

Qiong Wang et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2020)

Article Chemistry, Physical

Effects of cyclodextrin polymer on the gelation of amphiphilic polymer in inclusion complex

Hongwen Zhang et al.

JOURNAL OF MOLECULAR LIQUIDS (2020)

Article Energy & Fuels

Enhancement of capillary imbibition by Gamma-Alumina nanoparticles in carbonate rocks: Underlying mechanisms and scaling analysis

Amin Keykhosravi et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2020)

Review Chemistry, Physical

The advances of organic chromium based polymer gels and their application in improved oil recovery

Hongwen Zhang et al.

ADVANCES IN COLLOID AND INTERFACE SCIENCE (2020)

Article Chemistry, Physical

Ultra-low interfacial tension biobased and catanionic surfactants for low permeability reservoirs

Zhe Li et al.

JOURNAL OF MOLECULAR LIQUIDS (2020)

Review Energy & Fuels

A brief review of dynamic capillarity effect and its characteristics in low permeability and tight reservoirs

Ying Li et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2020)

Article Energy & Fuels

Experimental study of small-sized polymeric microgel (SPM) in low- or median-permeability reservoirs

Jihong Zhang et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2020)

Review Energy & Fuels

A review of development methods and EOR technologies for carbonate reservoirs

Zheng-Xiao Xu et al.

PETROLEUM SCIENCE (2020)

Article Energy & Fuels

Experimental studies on reaction laws during the process of air injection into the oil reservoirs with low permeability

Jian Luan et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2020)

Article Energy & Fuels

Combination of a chemical blend with CO2 huff-n-puff for enhanced oil recovery in oil shales

Tongzhou Zeng et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2020)

Review Materials Science, Biomaterials

Bioinspired surfaces with wettability: biomolecule adhesion behaviors

Haifeng Fan et al.

BIOMATERIALS SCIENCE (2020)

Article Energy & Fuels

Evaluation of Nanoparticle-stabilized Emulsion Flooding: Glass-micromodel Experimental Study

Amin Pajouhandeh et al.

JOURNAL OF THE JAPAN PETROLEUM INSTITUTE (2019)

Article Chemistry, Physical

Experimental research on amphiphilic polymer/organic chromium gel for high salinity reservoirs

Hongbin Yang et al.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2019)

Article Chemistry, Physical

Preparation and salt-insensitive behavior study of swellable, Cr3+-embedded microgels for water management

Jingyang Pu et al.

JOURNAL OF MOLECULAR LIQUIDS (2019)

Article Energy & Fuels

Technologies and practice of CO2 flooding and sequestration in China

Hu Yongle et al.

PETROLEUM EXPLORATION AND DEVELOPMENT (2019)

Article Engineering, Chemical

Investigation of synergistic effect of nanoparticle and surfactant in macro emulsion based EOR application in oil reservoirs

Neetish Kumar Maurya et al.

CHEMICAL ENGINEERING RESEARCH & DESIGN (2018)

Article Energy & Fuels

Physicochemical Mechanisms of Light Oil Oxidation During Extraction from High-Temperature Low-Permeability Oil Reservoirs

P. A. Gushchin et al.

CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS (2018)

Article Chemistry, Physical

Experimental research of high strength thermally stable organic composite polymer gel

Zeeshan Ali Lashari et al.

JOURNAL OF MOLECULAR LIQUIDS (2018)

Article Energy & Fuels

Oil recovery enhancement in low permeable and severe heterogeneous oil reservoirs via gas and foam flooding

Peng Wei et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2018)

Article Energy & Fuels

Conformance control for CO2-EOR in naturally fractured low permeability oil reservoirs

Zhaojie Song et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2018)

Article Energy & Fuels

Experimental study on pressure-decreasing performance and mechanism of nanoparticles in low permeability reservoir

Tianru Wang et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2018)

Article Energy & Fuels

A study on oxygen consumption mechanism of air-foam flooding in low-temperature oil reservoir

Fei-peng Wu et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2018)

Article Chemistry, Physical

Preparation of a fluorescent polymer microsphere and stability evaluation of its profile control system by a fluorescence stability index

Hongbin Yang et al.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2018)

Article Chemistry, Physical

A novel nanofluid based on sulfonated graphene for enhanced oil recovery

Hamideh Radnia et al.

JOURNAL OF MOLECULAR LIQUIDS (2018)

Article Energy & Fuels

Enhancement of the imbibition recovery by surfactants in tight oil reservoirs

Zhan Meng et al.

PETROLEUM SCIENCE (2018)

Article Chemistry, Physical

The analysis of emulsion structure changes during flow through porous structure

Mariola Blaszczyk et al.

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY (2017)

Article Energy & Fuels

Enhanced Oil Recovery of Low-Permeability Cores by SiO2 Nanofluid

Teng Lu et al.

ENERGY & FUELS (2017)

Article Energy & Fuels

Enhanced oil recovery by air-foam flooding system in tight oil reservoirs: Study on the profile-controlling mechanisms

Pengcheng Liu et al.

JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING (2017)

Article Energy & Fuels

Displacement mechanisms of air injection for IOR in low permeability light oil reservoirs

Justin Ezekiel et al.

International Journal of Oil Gas and Coal Technology (2017)

Review Chemistry, Multidisciplinary

A review of nanomaterials for nanofluid enhanced oil recovery

Baoliang Peng et al.

RSC ADVANCES (2017)

Article Energy & Fuels

Characterization of Produced and Residual Oils in the CO2 Flooding Process

Shuhua Wang et al.

ENERGY & FUELS (2016)

Article Engineering, Chemical

Experimental investigation of CO2 huff-n-puff process for enhancing oil recovery in tight reservoirs

Wanfen Pu et al.

CHEMICAL ENGINEERING RESEARCH & DESIGN (2016)

Article Energy & Fuels

Co-optimization of CO2 sequestration and enhanced oil recovery in extra-low permeability reservoir in Shanbei

Y. Li et al.

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS (2016)

Article Green & Sustainable Science & Technology

Parameter optimization of gas alternative water for CO2 flooding in low permeability hydrocarbon reservoirs

Pengcheng Liu et al.

JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY (2016)

Article Energy & Fuels

Influence of strong preformed particle gels on low permeable formations in mature reservoirs

Mahmoud O. Elsharafi et al.

PETROLEUM SCIENCE (2016)

Article Energy & Fuels

The effect of oil properties on oil recovery in dilute surfactant flooding

Wan-Fen Pu et al.

PETROLEUM SCIENCE AND TECHNOLOGY (2016)

Article Engineering, Chemical

Development of a novel water shut-off test method: Experimental study of polymer gel in porous media with radial flow

Nasibeh Hajilary et al.

CANADIAN JOURNAL OF CHEMICAL ENGINEERING (2015)

Review Chemistry, Multidisciplinary

Interfacial sciences in unconventional petroleum production: from fundamentals to applications

Lin He et al.

CHEMICAL SOCIETY REVIEWS (2015)

Article Chemistry, Physical

Screening of amphoteric and anionic surfactants for cEOR applications using a novel approach

Muhammad Shahzad Kamal et al.

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