Article
Thermodynamics
Bin Nie, Sijia Sun
Summary: Methane in coalbed methane (CBM) reservoirs is mainly adsorbed and can exist in both free and dissolved states. Low methane desorption efficiency is a key factor affecting CBM development. Temperature has a significant impact on methane adsorption, with desorption efficiency increasing with temperature. This study focuses on wellbore flow during CBM reservoir development using superheated steam injection and establishes a superheated steam flow model considering the influence of seawater disturbance caused by phase change. The study reveals that the temperature of superheated steam is highest in the formation section wellbore, affected by both the Joule Thompson effect and heat loss, and decreases as the wellbore extends through the seawater section. Superheated steam is only suitable for shallow sea conditions.
Article
Thermodynamics
Jun Zhang
Summary: This study focuses on the timing and methods of steam stimulation, steam flooding, and subsequent steam flooding in heavy oil reservoirs, and identifies some deficiencies in the current research. Additionally, the research on the mass and heat transfer characteristics of high temperature steam injection in heavy oil reservoirs is still in its early stages. The article establishes a horizontal well pattern model using numerical simulation software to analyze the heat and mass transfer characteristics of high temperature steam huff and puff and high temperature steam flooding, and the results show that the thermal connectivity between the horizontal well patterns is improved after the huff and puff phase.
Article
Geochemistry & Geophysics
Shitang Chen, Gui Hu, Xueqin Huang, Guohui Zhang, Xinyun Liu
Summary: In horizontal drilling, high frictional forces impact efficiency, and the influence of changes in the overall hole trajectory angle is often ignored. A mathematical model was developed to compute the radial force caused by axial tension, string bending, and gravity. The axial tension and gravity were found to be the main forces affecting the radial force, and the bending radial force was less than 14% of the gravity. The impact of dogleg severity on friction in different sections was analyzed, and specific control measures were proposed.
Article
Energy & Fuels
Yang Li, Yuanfang Cheng, Chuanliang Yan, Zhiyuan Wang, Qingxuan Zhang, Peng Zhou
Summary: The numerical model developed for hydrate-bearing sediments accurately characterizes the deformation behaviors of sediments under different stress states compared to the ideal elastic-plastic model. Orthogonal design variance and range analyses show that the load-bearing effect of the upper strata and the compaction effect of the middle strata have decisive influences on wellhead settlement in horizontal wells. The drawdown pressure exerts the greatest influence on the settlement of the upper strata in horizontal well sections.
Article
Energy & Fuels
Yanyu Zhang, Peng Li, Xiaofei Sun, Huijuan Chen, Yang Liu
Summary: This paper investigates the impact of tubing-deployed Flow Control Devices (FCDs) on steam conformance in a Steam Assisted Gravity Drainage (SAGD) well pair. It was found that FCDs can significantly improve steam conformance over time, highlighting the importance of adjusting the FCD open flow area design dynamically for maintaining steam conformance and enhancing oil recovery in the long term.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Geochemistry & Geophysics
Peng Zhang, Zhenghua Wu, Shuying Hu, Jikai Wei, Manlai Zhang, Zhengqin Ye, Chunsheng Pu, Jingyang Pu
Summary: This study focuses on the problem of casing deformation in tight oil horizontal well fracturing. Through rock mechanics experiments and probability statistics, the distribution characteristics and law of the near-wellbore stress field in STH M56 reservoir were analyzed using finite element modeling numerical method. The research reveals that the ratio of max/min horizontal stress in M56 tight oil reservoir is favorable for the formation of complex fracturing network during fracturing. The study also finds that the pumping pressure needs to be controlled within a safe range to prevent casing deformation.
Article
Green & Sustainable Science & Technology
Xinrun Lyu, Shicheng Zhang, Yueying He, Zihan Zhuo, Chong Zhang, Zhan Meng
Summary: A novel model is established to predict the temperature field in horizontal wellbore during CO2 fracturing, considering pressure work and viscous dissipation. Sensitivity analysis reveals that the relationship between injection rate and stable bottom-hole temperature is non-monotonic. Increasing tube size can alleviate high wellbore friction and increase the ultimate injection rate allowed.
Article
Energy & Fuels
Rui Yuan, Zhengda Yang, Bin Guo, Xinwei Wang, Liqiang Zhang, Riyi Lin
Summary: The study shows that increasing the superheat of steam in the SSE-SAGD method can improve oil recovery but also leads to increased production costs. A new development scheme with a step increase in superheat can help mitigate the impact of aquathermolysis reactions and enhance oil production efficiency.
Article
Energy & Fuels
Yuhong Xie, Min Ouyang, Hu Zhao, Lie Li, Yingtao Feng
Summary: The study demonstrates that managed wellbore pressure casing running technique can effectively reduce the risk of failure and improve the efficiency of casing running process. By accurately calculating dynamic surge-swab pressure and adjusting mud level accordingly to control the wellbore pressure, successful casing running operation can be achieved.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Energy & Fuels
P. Sarmadi, A. Renteria, C. Thompson, I. A. Frigaard
Summary: This study explores the effects of borehole geometry on displacement flow in primary cementing. The analysis shows that borehole geometry can be reconstructed using the lowest 3-5 dominant frequencies, and that irregularities in the borehole can make a significant difference in cementing horizontal wells.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
A. Renteria, P. Sarmadi, C. Thompson, I. A. Frigaard
Summary: The study explores the impact of borehole ovalization and large-scale irregularities on displacement during primary cementing of a horizontal well section. Using a two-dimensional gap-averaged model, the research found that irregularities can lead to additional azimuthal flow compared to uniformly circular wellbores, with displacement leaving residual mud patches at the top of eccentric horizontal wellbores when the displaced mud has a significant yield stress.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Marine
V. Prabu Kumar, R. Sundaravadivelu, K. Murali
Summary: This study investigates the hydrodynamic properties and proximity effects of dual offshore intake wells installed in the vicinity. A physical model study is conducted using 1:20 scale models in a regular wave environment. The wave run-up and rundown, free surface water oscillation, and diffraction wave heights are measured to analyze the influence of the orientation on these parameters and gain insight into the non-linear responses captured during the wave structure interaction.
Article
Energy & Fuels
Liangjie Mao, Haoyu Lin, Mingjie Cai, Juan Zhang
Summary: This study proposes a method for calculating collapse pressure considering the influence of formation hydration and analyzes the factors affecting the wellbore stability. The study concludes that factors such as hydration and drilling fluid density have the greatest impact on the stability of the borehole wall, and careful consideration of these factors is necessary in the drilling design stage.
JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME
(2022)
Article
Multidisciplinary Sciences
Penghao Lin, Wenlong Zheng, Xiaoming Wu
Summary: The study found that the formation probability of cutting beds in extended reach wells is influenced by factors such as well inclination angle, cutting particle size, viscosity, and flow rate, adjusting these parameters can reduce the formation of cutting beds. In addition, research on the migration of cutting beds shows that the size of cutting particles affects the migration mode, with large-particle cutting beds more likely to undergo surface migration.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Chemical
Jian Yang, Qingrong Wang, Fengjing Sun, Haiquan Zhong, Jian Yang
Summary: It is challenging to predict the critical liquid-carrying gas flow rate in horizontal wells due to their complicated well structures and gas-liquid two-phase pipe flows. This study developed a modified liquid-carrying model based on experimental data and factors such as liquid production rate and well inclination angle. The modified model accurately forecasted and diagnosed the liquid-carrying capacity in eight deep shale gas wells in China, with a coincidence rate of 92%.
Article
Energy & Fuels
Haitang Ye, Qi Li, Fengrui Sun
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2019)
Article
Geosciences, Multidisciplinary
Fengrui Sun, Yuedong Yao, Guozhen Li, Xiangfang Li
ARABIAN JOURNAL OF GEOSCIENCES
(2019)
Article
Geosciences, Multidisciplinary
Fengrui Sun, Yuedong Yao, Guozhen Li, Xiangfang Li
ARABIAN JOURNAL OF GEOSCIENCES
(2019)
Article
Thermodynamics
Fengrui Sun, Yuedong Yao, Guozhen Li, Wenyuan Liu
HEAT AND MASS TRANSFER
(2019)
Article
Energy & Fuels
Fengrui Sun, Yuedong Yao, Guozhen Li, Wenyuan Liu
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2019)
Article
Energy & Fuels
Wenyuan Liu, Jinqiu Hu, Keliu Wu, Fengrui Sun, Zheng Sun, Hongyang Chu, Xiangfang Li
PETROLEUM SCIENCE AND TECHNOLOGY
(2019)
Review
Energy & Fuels
Fengrui Sun, Yuedong Yao, Guozhen Li
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2020)
Article
Thermodynamics
Fengrui Sun, Yuedong Yao, Guozhen Li
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2019)
Article
Engineering, Chemical
Wenyuan Liu, Xiangfang Li, Jinqiu Hu, Keliu Wu, Fengrui Sun, Zheng Sun, Hongyang Chu, Xuan Qi
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2019)
Article
Energy & Fuels
Wenyuan Liu, Jinqiu Hu, Zheng Sun, Hongyang Chu, Xiangfang Li, Fengrui Sun
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2019)
Review
Energy & Fuels
Wenyuan Liu, Jinqiu Hu, Fengrui Sun, Zheng Sun, Xiangfang Li
GREENHOUSE GASES-SCIENCE AND TECHNOLOGY
(2020)
Article
Energy & Fuels
Lin Zhao, Hanqiao Jiang, Hao Wang, Hanxu Yang, Fengrui Sun, Junjian Li
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2020)
Article
Energy & Fuels
Lu Liu, Yuliang Yu, Yaozong Zhao, Fengrui Sun
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2020)
Article
Energy & Fuels
Fengrui Sun, Yuedong Yao, Guozhen Li
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2019)
Article
Energy & Fuels
Fengrui Sun, Yuedong Yao, Guozhen Li
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2019)
Article
Thermodynamics
Mahsa Taghavi, Swapnil Sharma, Vemuri Balakotaiah
Summary: This study investigates the natural convection effects in the insulation layers of spherical storage tanks and their impact on the tanks' performance. The permeability and Rayleigh number of the insulation material are considered as key factors. The results show that as the Rayleigh number increases, new convective cells emerge and cause the cold boundary to approach the external hot boundary. In the case of large temperature differences, multiple solutions may coexist.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Jinyang Xu, Fangjun Hong, Chaoyang Zhang
Summary: This study introduces a self-induced jet impingement device for enhancing pool boiling performance in high power electronic cooling. Through visualization and parametric investigations, the effects of this device on pool boiling performance are studied, revealing the promotion of additional liquid supply and vapor exhausting. The flow rate of the liquid jet is found to positively impact boiling performance.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Wenchao Ke, Yuan Liu, Fissha Biruke Teshome, Zhi Zeng
Summary: Underwater wet laser welding (UWLW) is a promising and labor-saving repair technique. A thermal multi-phase flow model was developed to study the heat transfer, fluid dynamics, and phase transitions during UWLW. The results show that UWLW creates a water keyhole, making the welding environment similar to in air laser welding.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Xingrong Lian, Lin Tian, Zengyao Li, Xinpeng Zhao
Summary: This study investigates the heat transfer mechanisms in natural fiber-derived porous structures and finds that thermal radiation has a significant impact on the thermal conductivity in low-density regions, while natural convection rarely occurs. Insulation materials derived from micron-sized natural fibers can achieve minimum thermal conductivity at specific densities. Strategies to lower the thermal conductivity include increasing porosity and incorporating nanoscale pores using nanosize fibers.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Yasir A. Malik, Kilian Koebschall, Stephan Bansmer, Cameron Tropea, Jeanette Hussong, Philippe Villedieu
Summary: Ice crystal icing is a significant hazard in aviation, and accurate modeling of sticking efficiency is essential. In this study, icing wind tunnel experiments were conducted to quantify the volumetric liquid water fraction, sticking efficiency, and maximum thickness of ice layers. Two measurement techniques, calorimetry and capacitive measurements, were used to measure the liquid water content and distribution in the ice layers. The experiments showed that increasing wet bulb temperatures and substrate heat flux significantly increased sticking efficiency and maximum ice layer thickness.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Jinqi Hu, Tongtong Geng, Kun Wang, Yuanhong Fan, Chunhua Min, Hsien Chin Su
Summary: This study experimentally examined the heat dissipation of vibrating fans and demonstrated its inherent mechanism through numerical simulation. The results showed that the flow fields induced by the vibrating blades exhibited pulsating features and formed large-scale and small-scale vortical structures, significantly improving heat dissipation. The study also identified the impacts of different blade structures and developed a trapezoidal-folding blade, which effectively reduced the maximum temperature of the heat source and alleviated high-temperature failure crisis.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Dan-Dan Su, Xiao-Bin Li, Hong-Na Zhang, Feng-Chen Li
Summary: The boiling heat transfer of low-boiling-point working fluid is a common heat dissipation technology in electronic equipment cooling. This study analyzed the interfacial boiling behavior of R134a under different conditions and found that factors such as the initial thickness of the liquid film, solid-liquid interaction force, and initial temperature significantly affect the boiling mode and thermal resistance.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Jinyi Wu, Dongke Sun, Wei Chen, Zhenhua Chai
Summary: A unified lattice Boltzmann-phase field scheme is proposed to simulate dendrite growth of binary alloys in the presence of melt convection. The effects of various factors on the growth are investigated numerically, and the model is validated through comparisons and examinations.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Shaokun Ge, Ya Ni, Fubao Zhou, Wangzhaonan Shen, Jia Li, Fengqi Guo, Bobo Shi
Summary: This study investigated the temperature distribution of main cables in a suspension bridge during fire scenarios and proposed a prediction model for the maximum temperature of cables in different lane fires. The results showed that vehicle fires in the emergency lane posed a greater thermal threat to the cables.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Shuang-Ying Wu, Shi-Yao Zhou, Lan Xiao, Jia Luo
Summary: This paper investigates the two-phase flow and heat transfer characteristics of low-velocity jet impacting on a cylindrical surface. The study reveals that the heat transfer regimes are non-phase transition and nucleate boiling with the increase of heat transfer rate. The effects of jet impact height and outlet velocity on local surface temperatures are pronounced at the non-phase transition stage. The growth rates of heat transfer rate and liquid loss rate increase significantly from the non-phase transition to nucleate boiling stage.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Emad Hasani Malekshah, Wlodzimierz Wlodzimierz, Miros law Majkut
Summary: Cavitation has significant practical importance and can be controlled by air injection. This study investigates the natural to ventilated cavitation process around a hydrofoil through numerical and experimental methods. The results show that the location and rate of air injection have a meaningful impact on the characteristics of cavitation.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Feriel Yahiat, Pascale Bouvier, Antoine Beauvillier, Serge Russeil, Christophe Andre, Daniel Bougeard
Summary: This study explores the enhancement of mixing performance in laminar flow equipment by investigating the generation of chaotic advection using wall deformations in annular geometries. The findings demonstrate that the combined geometry can achieve perfect mixing at various Reynolds numbers.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Hui He, Ning Lyu, Caihua Liang, Feng Wang, Xiaosong Zhang
Summary: This study investigates the condensation, frosting, and defrosting processes on superhydrophobic surfaces with millimeter-scale structures. The results reveal that the structures can influence the growth and removal of frost crystals, with the bottom grooves creating a frost-free zone and conical edges promoting higher frost crystal heights. Two effective methods for defrosting are observed: hand-lifting the groove and airfoil retraction contraction on protruding structures. This research provides valuable insights into frost formation and defrosting on millimeter-structured superhydrophobic surfaces, with potential applications in anti-frost engineering.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Thiwanka Arepolage, Christophe Verdy, Thibaut Sylvestre, Aymeric Leray, Sebastien Euphrasie
Summary: This study developed two thermal concentrators, one with a 2D design of uniform thickness and another with a 3D design, using the coordinate transformation technique and metamaterials. By structuring the thermal conductor, the desired local density-heat capacity product and anisotropic thermal conductivities were achieved. The homogenized thermal conductivities were obtained from finite element simulations and cylindrical symmetry consideration. A 3D concentrator was fabricated using 3D metal printing and characterized using a thermal camera. Compared to devices that solely consider anisotropic conductivities, the time evolution characteristics of the metadevice designed with coordinate transformation were closer to those of an ideal concentrator.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Liangyuan Cheng, Qingyang Wang, Jinliang Xu
Summary: In this study, we investigated the supercritical heat transfer of CO2 in a horizontal tube with a diameter of 10.0 mm, covering a wide range of pressures, mass fluxes, and heat fluxes. The study revealed a non-monotonic increase in wall temperatures along the flow direction and observed both positive and negative wall temperature differences between the bottom and top tube. The findings were explained by the thermal conduction in the solid wall interacting with the stratified-wavy flow in the tube.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)