Review
Energy & Fuels
Shijia Ma, Lesley A. James
Summary: Low salinity water injection (LSWI) and CO2 Water-Alternating-Gas (WAG) injection are cost-effective and environmentally friendly methods for oil recovery. The hybrid EOR method, CO2 low salinity (LS) WAG injection, shows potential in optimizing oil recovery and decreasing operational costs. However, the mechanism for increased recovery using this method is uncertain.
Article
Engineering, Multidisciplinary
Fiki Hidayat, T. Mhd Sofyan Astsauri
Summary: This study applied a Machine Learning Algorithm based on Random Forest Regression to assess the parameters in the LSWI process and identified the most important parameters as Injection SO42- Composition, Formation Water SO(4)(2-)Composition, and Volume Injection.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Hang Yin, Jiachao Ge, Bob Cook, Barry Smith, Furqan Hussain
Summary: Water-saturated CO2 injection improves CO2 sweep efficiency during CO2 enhanced oil recovery. Previous studies focused on investigating it as a secondary oil recovery method, while CO2 injection usually follows water injection, which is referred to as a tertiary recovery method.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2023)
Article
Engineering, Chemical
Krishna Raghav Chaturvedi, Durgesh Ravilla, Waquar Kaleem, Prashant Jadhawar, Tushar Sharma
Summary: This study investigates the impact of varying salinity on the CO2 loading capacity of water and finds that the low salinity (LS) water-alternating-gas (WAG) process has potential for achieving high oil recovery rates under different test temperatures. It is also observed that an increase in pressure has a positive effect on CO2 loading, while an increase in temperature shows the opposite behavior. The reduction in water salinity is identified as a favorable factor in terms of CO2 storage and oil recovery performance during CO2 injection.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Engineering, Environmental
Gaoming Wei, Hu Wen, Jun Deng, Zhenbao Li, Shixing Fan, Changkui Lei, Mingyang Liu, Lifeng Ren
Summary: The study utilizes hydraulic slotting and liquid CO2 injection to enhance coalbed permeability and methane recovery efficiency. The results show a significant increase in coal porosity and permeability, leading to more than 90% CBM recovery efficiency. The in-situ test indicates effective radii for HS and LCO2 injection were 2.5 m and 10 m, respectively, with a 2.2-fold increase in CBM recovery efficiency.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Green & Sustainable Science & Technology
Chang He, Zemin Ji, Xiaoyan Geng, Mengfei Zhou
Summary: CO2 flooding for gas recovery combined with CO2 storage has the potential to increase CH4 recovery and store CO2, leading to significant environmental and economic benefits. However, the influence of water and formation rocks on CO2-EGR and the enhancement of CH4 recovery combined with CO2 storage are poorly understood. This study developed a numerical model to investigate the effects of irreducible water on CO2-EGR and CO2 storage in gas reservoirs, and found that irreducible water can improve CO2-EGR, CH4 recovery, and CO2 storage efficiency.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2023)
Article
Energy & Fuels
A. Almeida da Costa, J. Mateo, R. Patel, J. J. Trivedi, J. B. P. Soares, P. S. Rocha, G. Costa, M. Embirucu
Summary: Low salinity water injection (LSWI) has been investigated as an enhanced oil recovery method in sandstone reservoirs in Brazil. The study found that LSWI led to increased oil recovery, Ca++ desorption from the rock surface, and a substantial pH increase in the effluent. Zeta potential measurements showed that a thicker water film was formed on the rock and oil surface with brine dilution during LSWI. The study identified key parameters such as Na+ and Ca++ concentration, and water injection rate as important factors in the LSWI process.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Chemical
Min Gu, Shuo Duan, Qirong Wu
Summary: The adsorption characteristics of CO2 and CH4 are different, with CO2 injection leading to an increase in CH4 recovery over time, but a decrease in the mole fraction of CH4. Adsorbents with larger SCO2/CH4 can prolong the stage of CH4 recovery.
Article
Energy & Fuels
Javad Kondori, Mohammad Islam Miah, Sohrab Zendehboudi, Faisal Khan, Dru Heagle
Summary: The low salinity water injection (LSWI) is an emerging enhanced oil recovery technique that improves displacement efficiencies in petroleum reservoirs. Experimental studies are time-consuming, while connectionist tools are reliable and cost-effective for predicting oil recovery factor (RF). The study compares different models and finds that the ET and hybridized LSSVM-CSA models perform better than the ANFIS model in estimating RF, with ET pointing to total dissolved salts as the most influential parameter.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Energy & Fuels
Nurafiqah Abdullah, Nurul Hasan
Summary: This study investigates the effects of miscible CO2 injection on production recovery in the Cornea Field and validates the model. It is found that increasing reservoir pressure, temperature, and CO2 injection rate can enhance oil production. The research aims to fill the knowledge gap in the Cornea Field regarding the effectiveness of CO2 injection.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2021)
Review
Energy & Fuels
Maryam Mohdsaeed H. I. Abdulla, Shaligram Pokharel
Summary: This paper provides a review of the application of immiscible CO2 injection in enhanced oil recovery. It evaluates the practicality of screening reservoir parameters for immiscible CO2 injection and discusses the critical parameters included in the analytical model for oil recovery calculations.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Hyejeong Lee, Jonghun Lim, Hyungtae Cho, Junghwan Kim
Summary: A novel pulp mill wastewater recovery process has been developed to utilize CO2 and SOx, demonstrating a desulfurization efficiency of 99% and capturing around 98.2% of CO2. The process model showed economic feasibility with an increased annual profit and a pay-back period of 8.4 years.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Biomedical
Jianfei Zhang, Ziqing He, Yujun Tang, Xia Xiao, Feng Yang
Summary: The aim of this study was to investigate the effect of different application sequences of CO2 fractional laser and triamcinolone acetonide injection on the treatment of hypertrophic scars. The study found that performing CO2 fractional laser treatment first, followed by triamcinolone acetonide injection, resulted in better treatment outcomes and reduced incidence of adverse reactions.
LASERS IN MEDICAL SCIENCE
(2022)
Article
Engineering, Petroleum
Emmanuel Ajoma, Thanarat Sungkachart, Saira, Hang Yin, Furqan Le-Hussain
Summary: The laboratory experiments showed that water-saturated CO2 injection may outperform pure CO2 injection in terms of oil recovery and net CO2 stored.
Article
Chemistry, Multidisciplinary
Hye-Seung Lee, Jinhyung Cho, Young-Woo Lee, Kun-Sang Lee
Summary: The study demonstrates that impurities in CO2 streams can have an impact on enhanced oil recovery and carbon capture and storage performance. Different types and concentrations of impurities affect the maximum miscibility pressure (MMP) of the oil-gas mixture, leading to decreased displacement efficiency and reduced oil density.
APPLIED SCIENCES-BASEL
(2021)
Article
Energy & Fuels
Ahmed S. Adila, Emad W. Al-Shalabi, Waleed Alameri
Summary: This paper investigates the effect of hybrid surfactant-LSWI/EWI on oil recovery from carbonate cores under harsh conditions through a numerical 2D simulation model. The results show that the hybrid surfactant-EWI can alter wettability and achieve higher oil recovery compared to other techniques. The study emphasizes the importance of surfactant adsorption and concentration for the hybrid surfactant-EWI technique.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
Anas M. Hassan, Mohammed Ayoub, Mysara Eissa, Emad W. Al-Shalabi, Abdullah Al-Mansour, Abdulrahman Al-Quraishi
Summary: The contribution introduces a new hybrid enhanced oil recovery method called smart water-assisted foam (SWAF) process, which combines smart water and foam flooding techniques. This method has the potential to improve oil recovery from carbonate reservoirs by altering rock wettability and reducing interfacial tension.
Article
Energy & Fuels
Emad W. Al-Shalabi, Waleed Alameri, Anas M. Hassan
Summary: The low salinity polymer (LSP) based enhanced oil recovery (EOR) technique is garnering increased attention due to its potential to improve both displacement and sweep efficiencies. This study developed a coupled numerical model that integrates a reservoir simulation toolbox with a geochemical software to investigate the polymer-brine-rock interactions associated with LSP flooding. The model successfully captures the effects of polymer adsorption, salinity, and shear rate on polymer viscosity, and enables real-time tracking of the aqueous phase salinity and its impact on polymer rheological properties.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Review
Polymer Science
Anas M. Hassan, Emad W. Al-Shalabi, Mohammed A. Ayoub
Summary: This study investigates the feasibility of improving polymer displacement technology in high temperature, high salinity oil carbonate resources using optimized polymers and hybrid methods. The selected novel polymers exhibit stability and tolerance, whereas adding alkali-surfactant can enhance mobility control and reduce interfacial tension, thus increasing displacement efficiency.
Review
Energy & Fuels
Khaled Al-Azani, Sidqi Abu-Khamsin, Ridha Al-Abdrabalnabi, Muhammad Shahzad Kamal, Shirish Patil, Xianmin Zhou, Syed Muhammad Shakil Hussain, Emad Al Shalabi
Summary: This review outlines the behavior and mechanisms involved in surfactant-enhanced oil recovery, and introduces different evaluation methods and monitoring techniques.
Article
Energy & Fuels
Jamiu Oyekan Adegbite, Emad Walid Al-Shalabi
Summary: Engineered water injection (EWI) is a promising enhanced oil recovery technique, and its field-scale application in heterogeneous carbonate formations needs further investigation. Numerical research shows that EWI improves volumetric and displacement sweep efficiencies in carbonates, with secondary EWI outperforming other techniques. Increasing well injection pressure and sulfate concentration in the engineered water can reduce the observed delay in tertiary EWI.
Article
Energy & Fuels
Ding Xiong, Shehzad Ahmed, Waleed Alameri, Emad W. Al-Shalabi
Summary: Foam injection is a promising technology for controlling gas mobility in enhanced oil recovery (EOR) processes. This study investigates the use of different surfactants and their combinations to establish foam performance and its ability to displace residual oil in challenging carbonate formations. The betaine surfactant (B1235) showed superior foamability and stability, and was found to be the most effective in maintaining foam properties in the presence of crude oil. The optimum concentrations for B1235 were determined to be 0.25 wt% without crude oil and 0.5 wt% with crude oil. The betaine-based surfactant-stabilized foam demonstrated effective control of gas mobility and achieved significant incremental oil recovery of 25%.
Article
Energy & Fuels
Shams Kalam, Sidqi A. Abu-Khamsin, Shirish Patil, Syed Muhammad Shakil Hussain, Mohamed Mahmoud, Muhammad Shahzad Kamal, Emad W. Al Shalabi
Summary: Surfactant adsorption is a significant challenge for cEOR techniques and it depends on the presence of silicate and clay minerals in carbonate outcrops. The higher the impurities, the higher the surfactant adsorption. The addition of a novel adsorption inhibitor, methylene blue, dramatically reduced the surfactant adsorption on carbonate outcrops. Curve fitting analysis showed that the Redlich-Peterson model described the adsorption isotherm well, while the pseudo-second-order model described the adsorption kinetics accurately.
Article
Energy & Fuels
Eric Sonny Mathew, Moussa Tembely, Waleed Alameri, Emad W. Al-Shalabi, Abdul Ravoof Shaik
Summary: This study developed machine learning models to estimate relative permeability (Kr) curves in steady-state drainage coreflooding experiments. By training these models with a large database of Kr and capillary pressure curves, accurate predictions of Kr curves were achieved. The developed models have the advantages of fast prediction speed and low cost, which are important for flow research in oil and gas production.
SPE RESERVOIR EVALUATION & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Xiao Deng, Muhammad Shahzad Kamal, Shirish Patil, Syed Muhammad Shakil Hussain, Mohamed Mahmoud, Dhafer Al-Shehri, Emad W. Al-Shalabi
Summary: Interfacial tension (IFT) reduction and wettability alteration (WA) are important mechanisms for enhanced oil recovery (EOR). They work together to release trapped oil in oil-wet formations. However, studies have shown conflicting observations about their coupled effect, necessitating further research. This study used oil-aged Indiana limestone samples to represent oil-wet carbonate rocks and conducted tests to assess wettability and IFT. Results showed that higher IFT values and stronger WA performance led to faster and higher oil recoveries. The importance of IFT reduction was enhanced in higher permeability conditions, while the importance of WA was enhanced in lower permeability conditions.
Article
Multidisciplinary Sciences
Shams Kalam, Sidqi A. Abu-Khamsin, Afeez Olayinka Gbadamosi, Shirish Patil, Muhammad Shahzad Kamal, Syed Muhammad Shakil Hussain, Dhafer Al-Shehri, Emad W. Al-Shalabi, Kishore K. Mohanty
Summary: This study investigated the synergistic application of low salinity water and a cationic gemini surfactant in carbonate rock. The results showed that low salinity water can significantly reduce the adsorption of the surfactant, thus improving the effectiveness and economic feasibility of chemical enhanced oil recovery (cEOR) techniques.
SCIENTIFIC REPORTS
(2023)
Review
Energy & Fuels
Muhammad Mushtaq, Emad W. Al-Shalabi, Waleed Alameri
Summary: This review article focuses on the mechanisms of surfactant adsorption onto different rock types and minerals encountered in reservoirs, as well as the methods for controlling the adsorption. The factors affecting adsorption, such as surfactant structure, temperature, brine composition, and surface properties, are discussed in detail. In addition, recent trends in mitigating surfactant adsorption, including the use of sacrificial agents, alkalis, low-salinity brine, nanoparticles, and ionic liquids, are covered. Overall, this review aims to provide a comprehensive understanding of surfactant adsorption behavior and mitigation techniques to improve the efficiency of chemical enhanced oil recovery processes.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Shams Kalam, Sidqi A. Abu-Khamsin, Shirish Patil, Syed Muhammad Shakil Hussain, Mohamed Mahmoud, Muhammad Shahzad Kamal, Emad W. Al Shalabi
Summary: Surfactants are advantageous chemicals for enhanced oil recovery due to their ability to lower interfacial tension and modify wettability. However, their loss by adsorption on rock surfaces is a major drawback.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Shehzad Ahmed, Alvinda Sri Hanamertani, Waleed Alameri, Emad W. Al-Shalabi, Muhammad Rehan Hashmet
Summary: This study evaluates the performance of polymer flooding in carbonate reservoirs with high salinity. In-situ saturation monitoring and CT scanner technology were used to analyze the flow diversion and retention of the injected polymer solution. The results showed significant flow diversion from fractures to matrix, and an increase in inaccessible pore volume in fractured rock compared to unfractured rock.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Shams Kalam, Sidqi A. Abu-Khamsin, Shirish Patil, Syed Muhammad Shakil Hussain, Mohamed Mahmoud, Muhammad Shahzad Kamal, Emad W. Al Shalabi
Summary: Surfactant adsorption is a key factor affecting the efficiency of chemically enhanced oil recovery techniques. The presence of silicate and clay minerals increases the adsorption of surfactants on carbonate samples. High salinity and temperature decrease the adsorption. A new adsorption inhibitor, methylene blue, reduces the surfactant adsorption on carbonate samples significantly. The Redlich-Peterson and pseudo-second-order models provide the best fit for the adsorption isotherm and kinetics, respectively.