Article
Energy & Fuels
Jianbin Liu, Liguo Zhong, Cheng Wang, Shihao Li, Xiaonan Yuan, Yigang Liu, Xianghai Meng, Jian Zou, Qiuxia Wang
Summary: The deeper the oil and gas reservoir is buried, the higher its temperature, requiring the use of high-temperature resistant plugging agents. Research has shown that a gel system formed by a terpolymer and a new crosslinking system can maintain stable network structures and long-term thermal stability at high temperatures, showing great potential for application in high-temperature oil and gas reservoirs.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Review
Energy & Fuels
Perekaboere Ivy Sagbana, Ahmad Sami Abushaikha
Summary: This paper provides a comprehensive review of the application of polymer gel, foam and emulsion for conformance control in oil recovery. It discusses various aspects of these chemical-based conformance control methods such as mechanisms, properties, applications, experimental and numerical studies, and parameters affecting successful field application. The recent advances in chemical-based conformance control agents are also highlighted.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Long Yu, Shidong Li, Ludger Paul Stubbs, Hon Chung Lau
Summary: This study prepared a Na-montmorillonite clay-stabilized oil-in-water Pickering emulsion system and tested it under high-salinity and high-temperature conditions. The emulsion showed effective emulsification of decane at salinities up to 25 wt% NaCl, but stability against creaming decreased with increases in NaCl concentration. Despite this, the temperature had only a slight effect on emulsion stability against creaming at high NaCl concentrations.
APPLIED CLAY SCIENCE
(2021)
Article
Energy & Fuels
Songyan Li, Lei Wang, Lu Sun, Zhaomin Li, Guangwei Ren
Summary: The study developed an innovative composite foamed gel formula for heavy oil thermal recovery, optimized through orthogonal testing. By comparing the blocking performances of different materials, the novel foamed gel was found to better adapt to harsh conditions and significantly improve steam-based puff-and-huff efficiency.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
Shengen Chen, Jie Li, Sen Chen, Junhui Qin, Guiqi Wang, Yonggang Yi, Liwei Zhang, Rui Wang, Daoyi Zhu
Summary: This paper studies the CO2 conformance control performance of different single and combined plugging systems in long sandstone cores through high-temperature and high-pressure experiments. The results show that the gel system has the best plugging effect, with a plugging efficiency of 86.13% and a gas production reduction rate of 95.71%. The combined plugging systems containing gels have higher plugging efficiency, and their gas production reduction ratios reach around 90%. The research results provide experimental understanding and theoretical guidance for solving the CO2 channeling problem.
Article
Energy & Fuels
Shengen Chen, Jie Li, Sen Chen, Junhui Qin, Guiqi Wang, Yonggang Yi, Liwei Zhang, Rui Wang, Daoyi Zhu
Summary: High-performance CO2-improved oil recovery and storage technology is a promising measure for global oilfield companies to achieve zero carbon targets. This study investigates the CO2 conformance control performance of different plugging systems in sandstone cores. The results show that polymer gel systems have the highest plugging efficiency and gas production reduction rate among the single-plugging systems. The combined plugging systems, especially those containing polymer gels, exhibit excellent CO2 conformance improvement and oil recovery performance.
Article
Energy & Fuels
Dao-Yi Zhu, Run-Tian Luo, Yang Liu, Jun-Hui Qin, Qi Zhao, Hong-Jun Zhang, Wan-Sheng Wang, Zi-Yuan Wang, Meng-En Zhu, Yi-Peng Wang, Peng-Bo Li
Summary: A re-crosslinkable dispersed particle gel (RDPG) system applied for conformance control in highly permeable channels of extremely high-temperature petroleum reservoirs was investigated. The RDPG suspension demonstrated stability and easy injection at room temperature, and it could pass through the pore throat by elastic deformation effect. It could undergo re-crosslinking reaction at high temperature to form a strong gel, showing promise for conformance improvement in extremely high-temperature reservoirs.
Article
Energy & Fuels
Ke Tang, Zhenghao Su, Yong Zhao, Hui Xie, Hongjun Zhang, Zenghao Xu, Chenyang Shi, Guiqi Wang, Daoyi Zhu
Summary: This study investigates the high-strength preformed particle-gel (HSPPG) as a potential solution for the conformance improvement of heterogeneous conglomerate reservoirs. The HSPPG demonstrates strong water swelling and sticking-together ability, as well as good viscoelasticity. It forms high-strength adhesive bonds on rock surfaces and enhances oil recovery in fractured conglomerate rock cores.
Article
Polymer Science
Jiang Tian, Jianbin Liu, Shun Liu, Shibao Yuan, Wenbin Cai, Haiyan Jiang
Summary: A high temperature gel system with excellent high-temperature resistance and long-term stability was developed for efficient development of high-temperature oil and gas reservoirs. The gel system exhibited strong gelation and plugging properties under different temperature and injection volume conditions, as well as good adhesion ability and deep profile control ability.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Review
Energy & Fuels
Farzin Saghandali, Mahsa Baghban Salehi, Radman Hosseinzadehsemnani, Rouzbeh Ghanbarnezhad Moghanloo, Vahid Taghikhani
Summary: This review provides a comprehensive guide to the research on chemical consolidation methods for controlling sand production in petroleum reservoirs. It introduces various methods and evaluates their advantages and performance. Chemical procedures are considered more efficient in counteracting sand production and migration. This review can serve as a handbook for experts to find the appropriate method of sand control for each reservoir.
Article
Chemistry, Multidisciplinary
Wenzheng Liu, Hong He, Fuqing Yuan, Haocheng Liu, Fangjian Zhao, Huan Liu, Guangjie Luo
Summary: The study investigated the influence of different injection schemes on the enhanced oil recovery (EOR) of heterogeneous phase combination flooding (HPCF) after waterflooding. Results showed that the alternating injection (AI) scheme had the highest EOR, while the simultaneous injection (SI) scheme had the least. Visual flooding experiments also confirmed that the swept area of HPCF under the AI scheme was higher than that of the SI.
Article
Engineering, Environmental
Buddhabhushan Salunkhe, Thomas Schuman, Ali Al Brahim, Baojun Bai
Summary: This paper describes the development and evaluation of a unique hydrogel composition with ultrahigh temperature resistance for chemical enhanced oil recovery. The hydrogel demonstrated exceptional thermal stability and swelling behavior in different ionic strengths, making it an ideal candidate for conformance control of reservoirs with harsh temperature and salinity conditions.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Bowen Yu, Shuda Zhao, Yifu Long, Baojun Bai, Thomas Schuman
Summary: A modified PPG product, the high temperature resistant re-crosslinkable preformed particle gel (HT-RPPG), was evaluated for its ability to re-crosslink at high temperatures and form a bulky material in large-opening features. Experiment results showed that smaller particle sizes led to faster re-crosslinking, higher temperatures increased swelling and re-crosslinking rates, and larger swelling ratios slowed down re-crosslinking time.
Article
Engineering, Petroleum
Xuezhen Wang, Jimin Zhou, Jieqiong Pang, Kishore K. Mohanty
Summary: A stable foam can be formed in high-salinity brine using a nonionic surfactant and ethyl cellulose nanoparticles (ECNP). Injecting this strong foam into fractured carbonate cores can significantly improve oil recovery by diverting more gas into the matrix for displacement.
Article
Energy & Fuels
Wei-Peng Wu, Ji-Rui Hou, Ming Qu, Yu-Long Yang, Wei Zhang, Wen-Ming Wu, Yu-Chen Wen, Tuo Liang, Li-Xiao Xiao
Summary: An anti-high temperature and high-salinity polymer gel (APG) was developed for enhancing oil recovery in fractured-vuggy carbonate reservoirs. Experimental results showed that APG had excellent resistance to high temperature and ultra-high salinity, with a prolonged dehydration time and maintained strength. APG also exhibited satisfactory shear and scour resistance, making it a promising candidate for channel plugging in fractured-vuggy carbonate reservoirs.
Article
Polymer Science
Jianbin Liu, Liguo Zhong, Zijuan Cao, Tongchun Hao, Yigang Liu, Wenwei Wu
Summary: This study conducted detailed experimental research and mechanism analysis on six gel systems commonly used in oil fields. It was found that the bisphenol-A/HMTA-L-1 gel system has excellent long-term thermal stability and salt tolerance in high temperature and high-salt environments, making it suitable for improving oil recovery in ultra-high temperature and high-salt oil and gas reservoirs.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Energy & Fuels
Jianbin Liu, Liguo Zhong, Chaohui Lyu, Yigang Liu, Shoujun Zhang
Summary: The study analyzes the influence of W/O emulsions on efficient heavy oil recovery and simulates the re-emulsification process of W/O emulsions, exploring the generation and properties of W/O emulsions during heavy oil recovery. The results show significant variations in the generation of W/O emulsions under different conditions as well as the emulsion droplet size and fluidity after re-emulsification.
Article
Energy & Fuels
Tongchun Hao, Liguo Zhong, Jianbin Liu, Xiaodong Han, Tianyin Zhu, Xiaocheng Zhang, Xiaopeng Wang, Lei Zhang
Summary: This study proposes a shut-in design method for water injection wells around adjustment wells based on injection-production data mining. By analyzing the correlation between injection and production wells, accurate adjustment schemes are designed, minimizing the impact of drilling and completion on oilfield development and improving production efficiency.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Jianbin Liu, Liguo Zhong, Yu Zewen, Yigang Liu, Xianghai Meng, Wei Zhang, Hailong Zhang, Guang Yang, Wu Shaojie
Summary: In this study, a high-efficiency anionic surfactant AEOSHS suitable for enhancing heavy oil recovery has been synthesized through chemical modification. Its performance was compared with traditional anionic surfactant SDS, and the results showed that AEOSHS had better emulsification efficiency and lower interfacial tension. Furthermore, long sand-packed tube flooding experiments demonstrated that AEOSHS significantly improved heavy oil recovery rate compared to SDS. Thus, AEOSHS shows great potential in enhancing heavy oil recovery.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Jianbin Liu, Liguo Zhong, Tongchun Hao, Lei Ren, Yigang Liu
Summary: Water flooding followed by emulsification system flooding is an effective method for enhancing heavy oil recovery. In this study, a collaborative emulsification system was developed and optimized to form stable and smaller oil-in-water emulsions. The system significantly reduces interfacial tension and additional resistance in reservoir porous media, resulting in improved heavy oil recovery. The developed collaborative emulsification system shows great potential for enhancing heavy oil recovery after water/hot water flooding.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Jianbin Liu, Liguo Zhong, Tongchun Hao, Yigang Liu, Shoujun Zhang
Summary: This study evaluates the effectiveness of surfactant flooding at different concentrations and visualizes the microscopic displacement mechanism of heavy oil surfactant flooding. The optimal concentration is determined, and the results are significant for optimizing enhanced oil recovery technology and developing high-efficiency surfactants.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Geosciences, Multidisciplinary
Tongchun Hao, Liguo Zhong, Jianbin Liu, Xiaocheng Zhang, Lei Zhang
Summary: The relationship between injection and production wells is crucial for reservoir evaluation and oilfield development planning. This study analyzes various impulse response functions and selects the most suitable ones based on the production characteristics of injection-production wells. A new injection-production relationship (IPR) equation of state is established to fit the actual oilfield situation. The optimal IPR results are achieved using the adaptive extended Kalman filter algorithm, showing strong feasibility and reliable outcomes for oilfield development.
MATHEMATICAL GEOSCIENCES
(2023)
Article
Energy & Fuels
Jianbin Liu, Shun Liu, Wei Zhang, Liguo Zhong, Yi Hao, Yanjun Zhang, Wenbin Cai, Hengyi Du
Summary: This study evaluated different types of chemical flooding agents in terms of interfacial tension, minimum emulsification in porous media, stability, and flooding efficiency. The influence of their characteristics on the pressure dynamics during flooding was analyzed, and the mechanism in the different stages of chemical flooding was clarified. The evaluation of chemical flooding agents should mainly consider their emulsification ability and the formed emulsion droplet size, viscoelasticity, and stability.
Article
Mechanics
Jianbin Liu, Shun Liu, Liguo Zhong, Zelin Li, Yalong Zhang, Hengyi Du
Summary: This study investigated the porous media flooding mechanism of a hydrophilic nano-SiO2 enhanced emulsification system. The results indicate that the addition of nano-SiO2 effectively reduces interfacial tension, adsorption loss, and droplet size, resulting in improved concentration of emulsifier and enhanced emulsification of heavy oil. The stability of the emulsion is also enhanced, and oil recovery efficiency is increased by 21.95%. Both experimental setups demonstrate that the combined system not only expands the swept volume but also improves oil displacement efficiency, indicating a significant improvement in oil recovery.
Article
Polymer Science
Jiang Tian, Jianbin Liu, Shun Liu, Shibao Yuan, Wenbin Cai, Haiyan Jiang
Summary: A high temperature gel system with excellent high-temperature resistance and long-term stability was developed for efficient development of high-temperature oil and gas reservoirs. The gel system exhibited strong gelation and plugging properties under different temperature and injection volume conditions, as well as good adhesion ability and deep profile control ability.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Jianbin Liu, Shun Liu, Liguo Zhong, Pan Wang, Pengchao Gao, Qihua Guo
Summary: An anionic/cationic surfactants system with excellent emulsification ability, ultra-small droplet size, and reduced oil-water interfacial tension was developed. The droplet size of the formed O/W emulsion can be as low as 0.6 μm, and the stability is greatly improved. The system can enhance heavy oil recovery by 22.05%.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Polymer Science
Xin Chen, Yiqiang Li, Xiaoguang Sun, Zheyu Liu, Jianbin Liu, Shun Liu
Summary: This paper systematically studies the application of polymer-assisted CO2 flooding in low-permeability reservoirs. The study optimizes the polymer agent suitable for low-permeability reservoirs and evaluates the performance of the polymer solution through core experiments. The research compares the enhanced oil recovery effects of polymer-assisted and water-assisted CO2 flooding.
Article
Chemistry, Multidisciplinary
Shun Liu, Hengyi Du, Jiang Tian, Yalong Zhang, Jianbin Liu, Xumin Tian, Zongzhen Wang, Kai Huang
Summary: This study analyzes the microstructure of a coal sample from block B and its absorption characteristics to a micromaterial tracer. An anti-adsorption micromaterial tracer system suitable for block B is proposed, and a judging method for productivity and connectivity of each segment of horizontal wells is established. The results show that the system exhibits minimal adsorption loss and can be well applied in segment monitoring in coal reservoirs. The study provides a dependable reference for optimizing fracturing parameters and well spacing in coal reservoirs.
Article
Mechanics
Shun Liu, Yalong Zhang, Hengyi Du, Jianbin Liu, Zhixiang Zhou, Zongzhen Wang, Kai Huang, Bosheng Pan
Summary: In this study, a two-dimensional visual model of a fractured-vuggy reservoir was designed based on geological data and injection-production characteristics. Flooding experiments were conducted to investigate the oil-water flow characteristics and residual oil distribution. The results showed that a low injection/high production strategy is the most optimal for achieving maximum oil recovery. The findings of this study provide insights for optimal production in fractured-vuggy carbonate reservoirs and enhance the understanding of oil-water flows within the reservoir.
Article
Mechanics
Jianbin Liu, Shun Liu, Liguo Zhong, Shibao Yuan, Qianlong Wang, Chaoping Wei
Summary: Chemical flooding is a crucial method for efficiently developing heavy oil reservoirs. This study investigates the emulsification characteristics of heavy oil during chemical flooding and evaluates the properties of six different chemical flooding agents at varying concentrations. The results show that chemical flooding agents with stronger emulsification abilities have a greater influence on reducing oil-water interfacial tension and improving heavy oil recovery.