Tight computationally efficient approximation of matrix norms with applications by Juditsky, Anatoli, Kotsalis, Georgios, Nemirovski, Arkadi

“…We specify rather general families of norms on the argument and the images space (“ellitopic” and “co-ellitopic”, respectively) allowing for reasonably tight computationally efficient upper-bounding of the associated operator norms. …”
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Study on the effect of space tightness on the inerting effect of liquid CO2 in pottery jar liquor warehouses by Xueming Li, Wei Wan, Gang Bai, Youkai Zhao, Xunxian Shi, Jinsong Zhu

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A new dynamic model of supply boundary at low pressure in tight gas reservoir by Jinbu Li, Lili Liu, Yuan Zhu, Lian Zhao, Xiaolong Chai, Leng Tian

“…At present, there are few studies on the dynamic supply boundary considering the threshold pressure gradient, reservoir and fracture stress sensitivity and slip effect for the gas-water two-phase model of tight gas reservoirs. …”
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Characterization of the Dynamic Imbibition Displacement Mechanism in Tight Sandstone Reservoirs Using the NMR Technique by Liangbin Dou, Min Yang, Hui Gao, Dongxing Jiang, Chenglu Liu

“…An experimental technique is developed to investigate the dynamic imbibition displacement mechanism in tight sandstone formations of the Yanchang group of the Ordos basin. …”
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Gas-water relative permeability characteristics and production dynamic response of low pressure and high water cut tight gas reservoirs by GUO Zhidong, KANG Yili, WANG Yubin, GU Linjiao, YOU Lijun, CHEN Mingjun, YAN Maoling

“…Clarifying the relationship between the gas-water relative permeability behavior of tight sandstone and the production performance of gas wells is conducive to the efficient development of tight gas reservoirs. …”
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Occupational mismatch in the labour market of selected EU countries by Alka Obadić, Viktor Viljevac

“…Methodology: Methodologically, the study uses Beveridge curves, labour market tightness, and matching efficiency estimates to measure the matching needs of employers and unemployed job seekers within various occupation groups. …”
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Effect of microscopic pore–throat structure heterogeneity on waterflooding seepage characteristics of tight sandstone reservoirs by Zhang Quanpei, Yang Chen, Tian Yu, Liu Hui, Xiao Wen, Wang Zhikun, Mi Zhongrong, Li Zheyu, Huo Yong, Li Yong, Min Jie, Zhang Duoduo, Chen Linzi, Duan Qiong

“…Based on these findings, high-temperature and high-pressure waterflooding experiments were performed to explore dynamic waterflooding behavior and systematic factors influencing fluid mobility and waterflooding efficiency (E w). …”
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Quantitative Characterization of Surfactant Displacement Efficiency by NMR—Take the Tight Oil of Chang 8 Member of Yanchang Formation in Fuxian Area, Ordos Basin, as an Example by Hu Yin, Gaorun Zhong, Jiangbin Liu, Yanjun Wu

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Dynamic and static integrated classification model of gas well based on XGBoost algorithm—an example from block S of Sulige tight sandstone gas field by Shuangshuang Zhang, Shuangshuang Zhang, Xiangdong Yu, Xiuli Gao, Donglin Li, Shijun Huang

“…Aiming at this problem, this paper establishes a set of dynamic and static integrated classification model of tight sandstone gas wells in Sulige based on XGBoost algorithm. …”
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Microscopic seepage process of gas and water in fractures of tight reservoirs by Shiwei HOU, Xunqing LÜ, Suyun MENG, Hao ZHANG, Xiuli DU

“…To investigate the dynamic seepage mechanisms of fluids within fractures of tight reservoirs, a three-dimensional digital core fracture structure of an actual reservoir was constructed based on deep learning segmentation results. …”
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Tightly Coupling Fusion of UWB Ranging and IMU Pedestrian Dead Reckoning for Indoor Localization by Rashid Ali, Ran Liu, Anand Nayyar, Basit Qureshi, Zhiqiang Cao

“…Experiments in dynamic indoor environment validate the effectiveness of the proposed approach that uses EKF to combine AKF and LS for error minimization.…”
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Comprehensive Evaluation of Waterflooding Performance with Induced Fractures in Tight Reservoir: A Field Case by Naichao Feng, Yuwen Chang, Zuoqian Wang, Tao Liang, Xiaofei Guo, Yimeng Zhu, Limin Hu, Yang Wang

“…Whether intentionally or unintentionally, waterflooding always takes place under fracturing condition in tight reservoir because of the extremely limited water absorption ability of the formation. …”
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Identification Method of Gas Migration Channels for CO2 Drive in Tight Oil Reservoirs by LU Xiaoxiao, AN Jixing, ZHU Lin, WANG Shaoqing, LI Pengfei, PAN Weizhi, LIN Yujing

“…This results in suboptimal planar sweep efficiency and subsequently impacts the oil displacement effect. …”
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Mechanisms of Proppant Transport in Rough Fractures of Offshore Unconventional Reservoirs: Shale and Tight Sandstone by Biao Yin, Yishan Lou, Shanyong Liu, Peng Xu

“…Compared to the smooth model, fluctuations in JRC_28 (tight sandstone) drastically increase turbulent kinetic energy within the fracture, altering particle transport dynamics. …”
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Generatively optimised compact 3-DoF spherical parallel manipulator with tightly integrated actuators by Kartikeya Walia, William Navaraj, Philip Breedon

“…This paper presents the development of a 3-DoF pure rolling spherical parallel manipulator (SPM) with tightly integrated actuators. Conventional serial wrist mechanisms often face singularities and structural constraints, limiting performance during dynamic tasks. …”
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Airborne Laser Scanning for Corridor Mapping: Georeferencing with Tightly-coupled Multi-view LiDAR by F. Pöppl, A. Spitzer, A. Ullrich, N. Pfeifer

“…Airborne laser scanning enables efficient acquisition of 3D point clouds, particularly in corridor mapping applications. …”
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A Semianalytical Model for Simulating Fluid Flow in Tight Sandstone Reservoirs with a Bottom Aquifer by Suran Wang, Yuhu Bai, Bingxiang Xu, Ling Chen, Wenlan Li, Yanzun Li

“…Water breaks through along fractures is a major concern in tight sandstone reservoirs with a bottom aquifer. …”
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Numerical simulation method for water injection-induced fractures in tight oil reservoirs based on PKN model by SHI Dengke, CHENG Shiqing, ZHAO Danfeng, WANG Yang, LIU Xiuwei, XU Zexuan

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Layered Production Allocation Method for Dual-Gas Co-Production Wells by Guangai Wu, Zhun Li, Yanfeng Cao, Jifei Yu, Guoqing Han, Zhisheng Xing

“…The synergistic development of low-permeability reservoirs such as deep coalbed methane (CBM) and tight gas has emerged as a key technology to reduce development costs, enhance single-well productivity, and improve gas recovery. …”
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Study on the Production Mode of Horizontal Well from Water Huff and Puff to Segmented Injection and Production in Tight Reservoir by Shiying Di, Shiqing Cheng, Cao Wei, Wenpeng Bai, Ruyuan Shang, Nai Cao, Youpeng Zhang

“…The findings of this study show alternating water huff and puff after to segmented injection and production in fractured tight reservoir can allow full play of dynamic fracture network’s potential and achieve effective enhancement in oil recovery rate.…”
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