Article
Environmental Sciences
Bo Liu, Mingxiu Che, Yuanyuan Liu, Jinpeng Xu, Yueming Qi, Liqiang Ma
Summary: Laboratory experiments were conducted to understand the mechanism and factors controlling the spontaneous imbibition of fracturing fluid into shale reservoirs. The results showed a linear relationship between the amount of water imbibed and the square root of time. Samples containing smectite had a significantly larger imbibed amount compared to those without or with few smectite minerals. The size of rocks affected the imbibition rate, while temperature influenced both the rate and amount through the hydration-related swelling of the clay.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Review
Energy & Fuels
Hamid Sharifigaliuk, Syed Mohammad Mahmood, Waleed Al-Bazzaz, Vahid Khosravi
Summary: Summary: Wettability of oil and gas shale reservoirs is a challenging property influenced by various factors, requiring a deep understanding of complexities. This review analyzes relevant research on wettability evaluation of shales, including factors such as composition, pore types, and reservoir conditions.
Article
Energy & Fuels
Zhonghua Liu, Baojun Bai, Yanling Wang, Hai Qu, Qianhua Xiao, Shunpeng Zeng
Summary: The study found that during the spontaneous imbibition process of slickwater in shale gas fields, the imbibition capacities of its components differ, and the imbibition mainly occurs through secondary microfractures.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Review
Engineering, Chemical
Liu Yang, Duo Yang, Chen Liang, Yuxue Li, Manchao He, Junfei Jia, Jianying He
Summary: This paper aims to provide a scientometric review of imbibition studies in unconventional reservoirs from 2010 to 2021. A total of 1810 papers are collected from the Web of Science Core Correction database based on selected keywords and paper types. Using CiteSpace software, a quantitative scientific analysis is carried out on various aspects of research. The study constructs a comprehensive research knowledge map of imbibition, providing relevant research with a more valuable and in-depth understanding of the field.
Article
Geosciences, Multidisciplinary
Anbin Wu, Jian Cao, Jingkun Zhang
Summary: The study shows that bedding-parallel calcite veins in shale have two stages of growth, with early veins formed in low-temperature, high-salinity diagenetic fluids and late veins formed in high-temperature, low-salinity diagenetic fluids, reflecting the evolution of organic matter in the oil and gas generation process.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Energy & Fuels
Jian Xiong, Junfang Tang, Xue Zhou, Xiangjun Liu, Lixi Liang, Lianlang Hou
Summary: The wettability behaviors of nanoscale pores in shales from the Longmaxi Formation in the Sichuan Basin were investigated. It was found that organic matter pores and inorganic pores in shales show cross-distribution. The spontaneous imbibition of oil is slower than that of water and increases with the total organic carbon content. Illite and quartz mineral surfaces are hydrophilic. The wetting contact angle of the organic matter surface increases with the increase in oxygen-containing functional groups but decreases with increasing temperature.
Article
Energy & Fuels
Ke Wang, Beibei Jiang, Kairui Ye, Haitao Li, Yongsheng Tan
Summary: This study comprehensively analyzes the imbibition pressures of the gas-water phase and introduces a new imbibition model that performs better in predicting fluid loss during the hydraulic fracturing process for shale gas wells.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Mathematics, Interdisciplinary Applications
Jianhong Zhu, Junbin Chen, Xiaoliang Duanmu, Xiaoming Wang, Diguang Gong, Xiangrong Nie
Summary: Based on HPMI experiments and NMR analyses, this study quantitatively evaluated the pore-size distribution of a shale oil reservoir in Ordos Basin. The results showed strong heterogeneity and micro-nano characteristics, with micropores and mesopores accounting for over 90% of the volume. The imbibition water content was highest in micropores, followed by mesopores, while macropores had the lowest content.
FRACTAL AND FRACTIONAL
(2023)
Article
Energy & Fuels
Hamid Sharifigaliuk, Syed Mohammad Mahmood, Maqsood Ahmad, Vahid Khosravi, Dalibor Matysek
Summary: The study compared the efficacy of traditional techniques, including contact angle, spontaneous imbibition, and floatation, in determining the wettability of Eagle Ford, Mancos, and Marcellus shale samples. It was found that the spontaneous imbibition method was most effective in evaluating the mixed-wet characteristics of the Marcellus shale samples.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Review
Geosciences, Multidisciplinary
Hamid Sharifigaliuk, Syed Mohammad Mahmood, Reza Rezaee, Ali Saeedi
Summary: Wettability plays a crucial role in controlling fluid distribution and flow in porous media, with significant implications for the petroleum industry. This review evaluates various wettability determination methods for shales, analyzing challenges and lessons learned, as well as providing recommendations based on comparative results. Spontaneous imbibition is highlighted as the most realistic measurement method, revealing pore connectivity, while the impact of different liquid/rock interactions on results necessitates the consideration of reservoir triaxial stress conditions.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Energy & Fuels
Lanlan Yao, Zhengming Yang, Haibo Li, Bo Cai, Chunming He, Debin Xia
Summary: Imbibition is an important method of oil recovery in shale oil reservoirs, and the impact of energy enhancement on imbibition is not extensively studied. Pressurized imbibition can increase the recovery ratio of fractured shale, while spontaneous imbibition can improve the ultimate recovery ratio of matrix shale.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2021)
Review
Energy & Fuels
Ghulam Mohyuddin Sohail, Ahmed E. Radwan, Mohamed Mahmoud
Summary: This study evaluates the shale gas potential of different marine source rocks in Pakistan and finds that Pakistani shales are correlated with the most active shale gas plays in North America. The geological and geochemical parameters of the Pakistani shales show promising prospects for shale gas development.
Article
Energy & Fuels
Yong Liu, Yanbin Yao, Dameng Liu, Chi Zhang
Summary: Forced imbibition in shale reservoirs is crucial for efficient recovery of shale gas, but it can also lead to low flowback efficiency and reservoir damages. This study investigated imbibition behaviors in Longmaxi shales under four different boundary conditions using nuclear magnetic resonance technology. The results showed that the shale bedding structure is the key factor determining the imbibition dynamics and patterns under different boundary conditions.
Article
Energy & Fuels
Li Lu, Jianting Li, Xuhui Zhang, Yingjun Li, Fujian Ma
Summary: Imbibition is an important mechanism in shale reservoirs for waterflooding and low flow-back during fracking. The content of clay minerals, especially illite and IS, significantly affect the imbibition process, including the formation of new micro fractures and the speed of water absorption. Factors such as external pressure, pore structure, and capillary force also play a significant role in influencing the imbibition in shale samples.
Article
Thermodynamics
Liu Yang, Duo Yang, Canhua Liu, Sheng Li, Jianying He, Hualin Zhou, Yuxue Li
Summary: Imbibition is an important process in improving oil and gas recovery in porous media. This paper reviews the recent progress in the research on the imbibition characteristics of unconventional reservoirs, especially shale. It provides valuable insights and understanding for researchers in this field.
JOURNAL OF POROUS MEDIA
(2023)