Capillarity Pub Date : 2023-12-01 DOI: 10.46690/capi.2024.02.01

Fatemah Alhammad, Mujahid Ali, Nurudeen Yekeen, Muhammad Ali, Hussein Hoteit, S. Iglauer, A. Keshavarz

引用次数: 0

Imbibition oil recovery from tight reservoir cores using microemulsion: Experiment and simulation 利用微乳液从致密储层岩心进行浸润采油：实验与模拟

Capillarity Pub Date : 2023-11-29 DOI: 10.46690/capi.2024.02.02

Qinzhi Li, Yiwen Wang, B. Wei, Lele Wang, Jun Lu, Jinyu Tang

{"title":"Imbibition oil recovery from tight reservoir cores using microemulsion: Experiment and simulation","authors":"Qinzhi Li, Yiwen Wang, B. Wei, Lele Wang, Jun Lu, Jinyu Tang","doi":"10.46690/capi.2024.02.02","DOIUrl":"https://doi.org/10.46690/capi.2024.02.02","url":null,"abstract":": Despite the promising results obtained from the utilization of interfacial-active additives in enhancing imbibition-based oil recovery from tight reservoirs, the predominant mechanisms governing this process remain inadequately understood. In this work, a meticulously designed workflow is implemented to conduct experiments and modeling focusing on imbibition tests performed on tight sandstone cores while utilizing surfactant and microemulsion. Our primary objective is to investigate the response of oil recovery to these additives and to develop a robust and reliable model that incorporates the intricate interactions, thereby elucidating the underlying mechanisms. Two imbibition fluids are designed, namely, surfactant and microemulsion. A comprehensive investigation is performed to analyze the physicochemical properties of these fluids, encompassing phase behavior, density, viscosity, and wettability alteration, with the aim of establishing fundamental knowledge in the field. Three imbibition tests are carried out to observe the response of oil production and optimize the experimental methodology. A numerical model is developed that fully couples the evolution of relative permeability and capillary pressure with the dynamic processes of emulsification, solubilization and molecular diffusion. The results demonstrate the crucial role of emulsification/solubilization in the imbibition process.","PeriodicalId":34047,"journal":{"name":"Capillarity","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139209192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Role of interfacial tension on wettability-controlled fluid displacement in porous rock: A capillary-dominated flow and how to control it 界面张力对多孔岩石中由润湿性控制的流体位移的作用：毛细管主导流及其控制方法

Capillarity Pub Date : 2023-11-23 DOI: 10.46690/capi.2023.12.02

S. Tangparitkul, Anupong Sukee, Jiatong Jiang, Chesada Tapanya, Nawamin Fongkham, Hongbin Yang

引用次数: 0

CO2 capillary trapping in layered sandstone dominated by inertial force and gravity 惯性力和重力主导的层状砂岩中的二氧化碳毛细捕集

Capillarity Pub Date : 2023-11-16 DOI: 10.46690/capi.2024.01.03

Yingwen Li, Yongfei Yang, Mingzhe Dong

引用次数: 0

A critical review of capillary pressure behavior and characterization in fractional-wet reservoirs 分湿储层毛管压力行为与表征综述

Capillarity Pub Date : 2023-11-08 DOI: 10.46690/capi.2024.01.02

Yihang Xiao, Zhenjiang You, Lei Wang, Zhengtong Du

引用次数: 0

Effects of gravity and buoyancy on spontaneous liquid-liquid imbibition in fractured porous media 重力和浮力对裂缝性多孔介质液-液自发吸胀的影响

Capillarity Pub Date : 2023-11-04 DOI: 10.46690/capi.2024.01.01

Hui Cheng, Fuyong Wang

{"title":"Effects of gravity and buoyancy on spontaneous liquid-liquid imbibition in fractured porous media","authors":"Hui Cheng, Fuyong Wang","doi":"10.46690/capi.2024.01.01","DOIUrl":"https://doi.org/10.46690/capi.2024.01.01","url":null,"abstract":"Spontaneous imbibition in porous materials has received significant attention in recent decades; however, spontaneous liquid-liquid imbibition in fractures has not been well studied. Specifically, the mechanism behind the influence of gravity and buoyancy on the spontaneous imbibition of wetting phase fluid into fractured porous media remains uncertain. In this study, an analytical solution for spontaneous imbibition in fractured porous media under the influence of gravity and buoyancy is presented. The results show that imbibition velocity with buoyancy and gravity is faster than that without these forces. The effect of buoyancy and gravity on imbibition velocity increases with rising fracture aperture and length. When the fracture aperture is less than 1 μm, the relative deviation between imbibition height with and without gravity and buoyancy is about 50%. On the other hand, when the fracture aperture is greater than 1 μm, the relative deviation is proportional to the fracture aperture. The relative reduction in imbibition height over time is not obvious when the fracture aperture is the same. In the process of water-oil spontaneous imbibition, the effect of buoyancy and gravity is more pronounced at low oil-water interfacial tension. Therefore, the effect of buoyancy and gravity on spontaneous imbibition cannot be ignored under this condition. Document Type: Original article Cited as: Cheng, H., Wang, F. Effects of gravity and buoyancy on spontaneous liquid-liquid imbibition in fractured porous media. Capillarity, 2024, 10(1): 1-11. https://doi.org/10.46690/capi.2024.01.01","PeriodicalId":34047,"journal":{"name":"Capillarity","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135774595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of fracturing fluid composition and other factors on improving the oil imbibition recovery of shale reservoir 压裂液成分等因素对提高页岩储层吸油采收率的影响

Capillarity Pub Date : 2023-10-25 DOI: 10.46690/capi.2023.12.01

Shilin Li, Zhongbin Ye, Junqi Wang, Lei Tang, Nanjun Lai

{"title":"Effects of fracturing fluid composition and other factors on improving the oil imbibition recovery of shale reservoir","authors":"Shilin Li, Zhongbin Ye, Junqi Wang, Lei Tang, Nanjun Lai","doi":"10.46690/capi.2023.12.01","DOIUrl":"https://doi.org/10.46690/capi.2023.12.01","url":null,"abstract":"Imbibition is an important mechanism of shale reservoir development. In exploring the factors affecting the enhanced recovery of shale reservoirs by imbibition, laboratory spontaneous and forced imbibition experiments were conducted using outcrop cores of shale reservoirs. The effects of imbibition agent composition, fracture, and pressure on imbibition are obtained in this work based on imbibition recovery test findings and imbibition theory. Results show that the imbibition curve includes three stages, namely, imbibition, transition, and stability. Among the components of compound fracking fluid, surfactants have the greatest impact, whereas emulsifiers have the least impact. Complex crack structures and high-temperature environments can improve imbibition recovery. Pressure is inversely proportional to imbibition recovery in the highly stress-sensitive shale reservoir. In addition, the throughput time of the imbibition agent has an optimal value in the shale reservoir. After the huff-n-puff time exceeds the optimal value, the imbibition agent should be replaced to continuously improve the imbibition effect. The research results can serve as a basis for enhancing oil recovery through imbibition. Document Type: Original article Cited as: Li, S., Ye, Z., Wang, J., Tang, L., Lai, N. Effects of fracturing fluid composition and other factors on improving the oil imbibition recovery of shale reservoir. Capillarity, 2023, 9(3): 45-54. https://doi.org/10.46690/capi.2023.12.01","PeriodicalId":34047,"journal":{"name":"Capillarity","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135218056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Imbibition behaviors in shale nanoporous media from pore-scale perspectives 页岩纳米多孔介质的渗吸行为

Capillarity Pub Date : 2023-10-14 DOI: 10.46690/capi.2023.11.02

Han Wang, Jianchao Cai, Yuliang Su, Zhehui Jin, Wendong Wang, Guanqun Li

{"title":"Imbibition behaviors in shale nanoporous media from pore-scale perspectives","authors":"Han Wang, Jianchao Cai, Yuliang Su, Zhehui Jin, Wendong Wang, Guanqun Li","doi":"10.46690/capi.2023.11.02","DOIUrl":"https://doi.org/10.46690/capi.2023.11.02","url":null,"abstract":"In shale reservoirs, spontaneous imbibition is an important mechanism of fracturing fluid loss, which has an important impact on enhanced oil recovery and water resource demand. However, spontaneous imbibition behaviors are more complicated to characterize and clarify due to the nanoscale effects of the boundary slip, oil-water interfacial slip, and heterogeneous fluid properties caused by intermolecular interactions. A nanoscale multi-relaxation-time multicomponent and multiphase lattice Boltzmann method was applied to investigate the water imbibition into oil-saturated nanoscale space. The effects of pore size, fluid-surface slip, water film, oil-water interfacial slip, water bridge, and pore structures on the imbibition behaviors in a single nanopore were investigated. Then, the spontaneous imbibition behaviors in nanoporous media based on the pore scale microsimulation parameters obtained from the molecular simulation velocity results were simulated, and the effects of water saturations on imbibition behaviors were discussed. The results show that as the water saturation increases from 0 to 0.1, the imbibition mass in nanoporous media increases because of the oil-water interfacial slip and a completely hydrophilic wall. As water saturation continues to increase, the imbibition mass decreases gradually because the existence of water bridges impedes the water imbibition. Document Type: Original article Cited as: Wang, H., Cai, J., Su, Y., Jin, Z., Wang, W., Li, G. Imbibition behaviors in shale nanoporous media from pore-scale perspectives. Capillarity, 2023, 9(2): 32-44. https://doi.org/10.46690/capi.2023.11.02","PeriodicalId":34047,"journal":{"name":"Capillarity","volume":"249 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135803659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wettability controlling effects on the fluid occurrence and flow in shale gas reservoirs: Present problems and new sights 润湿性对页岩气藏流体赋存和流动的控制作用:存在的问题和新的认识

Capillarity Pub Date : 2023-10-10 DOI: 10.46690/capi.2023.11.01

Shaojie Zhang, Tengyu Wang, Zhenrui Gao, Yunsheng Zhang

引用次数: 0

Effects of impurity gases on interfaces of the hydrogen-water-decane three-phase system: A square gradient theory investigation 杂质气体对氢-水-癸烷三相体系界面的影响:平方梯度理论研究

Capillarity Pub Date : 2023-09-18 DOI: 10.46690/capi.2023.10.02

Yafan Yang, Jingyu Wan, Jingfa Li, Weiwei Zhu, Guangsi Zhao, Xiangyu Shang

引用次数: 0

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