Article
Thermodynamics
Chao Qin, Yongdong Jiang, Yong Fu, Shiwan Chen, Xiao Song, Shuangying Zuo, Daoyong Wu, Niuniu Zou
Summary: The interaction between shale and methane after supercritical CO2 injection can be explained well by adsorption thermodynamics study. Experimental results showed that the adsorption capacity of shale to methane decreased after supercritical CO2-water saturation, mainly due to the decrease in specific surface area of shale. The thermodynamic parameters, including isosteric heat of adsorption, enthalpy change, Gibbs free energy change and entropy change, also varied with adsorption capacity and temperature, indicating that supercritical CO2-water-shale interaction can enhance shale gas recovery from the perspective of thermodynamics.
Article
Energy & Fuels
Wenfeng Guang, Xiaoqian Liu, Zhenyu Zhang, Peng Luo
Summary: The diffusion mechanism of CH4 and CO2 on the coal matrix is important for enhanced coal seam gas recovery and CO2 sequestration. Different-phase CO2 has different effects on gas mass transfer and surface thermodynamics in the coal matrix.
Article
Energy & Fuels
Humera Ansari, Shuwei Gong, J. P. Martin Trusler, Geoffrey Maitland, Ronny Pini
Summary: This study presents a hybrid pore-scale model for gas adsorption in shale, using surrogate surfaces to simulate the behavior. The reliability of the model is verified through comparisons with experimental data. The proposed model can reduce the experimental burden and has general applicability.
Article
Engineering, Chemical
Long Fan, Shimin Liu
Summary: Accurate measurement of shale gas adsorption capacity is crucial for reservoir appraisal and production stimulation. An improved lab method for shale adsorption measurement and diffusivity evaluation was introduced, showing that the improved method effectively reduces measurement errors and is suitable for materials with limited adsorption capacity.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2021)
Article
Energy & Fuels
Shu Yang, Chunpeng Zhao, Bingyu Ji, Yingfu He
Summary: In this study, the adsorption mechanism of high pressure and high temperature shale gases was investigated using molecular dynamic simulations. An analytical model of adsorption isotherms in organic nanopores at high pressure and temperature was developed and verified by experiments. The results showed that the adsorption mechanism for high pressure and temperature shale gases is free gas filling and the adsorbed layer becomes compressed with a density higher than the maximum density. The compressed adsorbed layers have high mobility and contribute to increased gas production in deep- and ultra-deep shale gases. The mobility of adsorbed layers decreases when the pressure decreases.
Article
Energy & Fuels
Hesham Abdulelah, Berihun Mamo Negash, Atta Dennis Yaw, Tareq M. Al-Shami, Ahmed Al-Yaseri, Eswaran Padmanabhan
Summary: A benchtop humidity and temperature chamber was used to evaluate water vapor sorption in four US shale samples at 90 degrees C. The fractal properties and capillary pressure of the shale samples were evaluated. The results showed that different shale samples have different water sorption capacities and there is little hysteresis between adsorption and desorption isotherms. The capillary curves of all shale samples were fitted with regression models.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2022)
Article
Thermodynamics
Wenrui Shi, Chaomo Zhang, Shu Jiang, Yong Liao, Yuanhui Shi, Aiguo Feng, Steven Young
Summary: This study analyzes the pressure-boosting stimulation pattern and prediction method in the Fuling shale gas field, finding that this pattern can improve gas transmission capacity, maintain production, and increase recovery. The Blasingame analysis method can effectively predict production changes over the next decade. The research results provide valuable guidance for improving gas recovery in the Fuling and similar shale gas fields.
Article
Energy & Fuels
Min Li, Xiongqi Pang, Liang Xiong, Tao Hu, Di Chen, Zhen Zhao, Shasha Hui, Yang Liu, Siyu Zhang
Summary: The study systematically analyzed the shale gas occurrence characteristics of deep high-over mature shales using the Longmaxi Formation as an example, and found that factors such as temperature, pressure, pore structure, and organic matter content have an influence on the occurrence characteristics of shale gas.
Article
Energy & Fuels
Ye Lyu, Devang Dasani, Theodore Tsotsis, Kristian Jessen
Summary: This study characterizes mass transfer and sorption in shale at different length scales using Helium and Argon as probe gases. By utilizing various experimental methods and the triple-porosity model, the important parameters like porosity and permeability of shale have been successfully estimated.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Thermodynamics
Jing Li, Yetong Xie, Huimin Liu, Xuecai Zhang, Chuanhua Li, Lisong Zhang
Summary: This research analyzed the real-time evolution of shale permeability using a combination of micro and macro experiments. The study examined the influence of osmotic pressure, pore pressure, and confining pressure on permeability evolution and studied the mechanism of the slippage effect on permeability using microscopic observations. The results showed that permeability decreased with an increase in osmotic pressure, increased with an increase in pore pressure, and decreased with an increase in confining pressure. The study also established a regression function to quantitatively describe the permeability evolution under the combined effect of confining pressure and pore pressure.
Article
Thermodynamics
Qi Gao, Songcai Han, Yuanfang Cheng, Xian Shi, Chuanliang Yan, Zhongying Han
Summary: Depleted shale reservoirs have the potential to serve as long-term geological storage sites for CO2. However, the complex heterogeneity of shale matrix poses challenges in understanding CO2 transport behavior. In this study, a flow-coupled-geomechanical model is developed to analyze CO2 transport at the microscale, considering the deformation and interactions of both organic matter (OM) and inorganic matter (iOM). The results show that heterogeneity in the shale matrix leads to regional differences in CO2 transport and shale matrix deformation behavior, emphasizing the importance of considering matrix heterogeneity.
Review
Energy & Fuels
Yiming Zhang, John Wang
Summary: Coriolis, turbine, V-cone, and orifice meters are commonly used in shale gas production measurement, but high flow rates, pressures, and gas composition changes in shale gas wells may affect volumetric measurement accuracy. Therefore, investigating and improving metering technologies in shale gas wells is critical.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2022)
Article
Energy & Fuels
Mingjun Chen, Peisong Li, Yili Kang, Xiaojin Zhou, Lijun You, Xiaoyi Zhang, Jiajia Bai
Summary: This study investigated the impact of aqueous phase trapping (APT) in shale matrix on methane sorption and diffusion capacity. The results showed that APT significantly reduced methane adsorption and diffusion capacity, hindering the release of gas from matrix to fracture network in the long run.
Article
Engineering, Chemical
Qiaoping Liu, Jingfei Tang, Wenqi Ke, Haibo Wang, Uzezi Davis Orivri
Summary: The Fuling shale gas field is experiencing a rapid decline in gas production due to heavy liquid loading issues. Traditional gas lift methods are not feasible in remote mountainous areas and have high operation costs. However, a new type of gas lift valve has shown promising results in restarting wells and increasing gas production at low pressures. This new system has a wide range of application prospects, particularly for shale gas wells.
Article
Multidisciplinary Sciences
Zhanke Li, Anfeng Shi, Xiaohong Wang, Zhifeng Liu, Ming Wang, Zhifan Liu
Summary: Evaluation of hydraulic fracturing effect of shale gas wells is helpful for design optimization and adjustment of hydraulic fracturing schemes. History matching results indicate that pressure-sensitive effects of absolute permeability and relative permeability need to be fully considered, especially for fitting of the fracturing fluid phase flow.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2021)
Article
Cardiac & Cardiovascular Systems
Ling-Feng Gu, Jie Gu, Si-Bo Wang, Hao Wang, Ya-Xin Wang, Yuan Xue, Tian-Wen Wei, Jia-Teng Sun, Xiao-Qing Lian, Jia-Bao Liu, En-Zhi Jia, Lian-Sheng Wang
Summary: This study found that high D-dimer and neutrophil to lymphocyte ratio (NLR) are associated with long-term major adverse cardiovascular events (MACEs) in patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention (PCI). The combination of D-dimer and NLR can better predict long-term MACEs.
CARDIOLOGY JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Sibo Wang, Tiankai Shan, Jun Zhu, Qiqi Jiang, Lingfeng Gu, Jiateng Sun, Yulin Bao, Bo Deng, Hao Wang, Liansheng Wang
Summary: The objective of this study was to investigate the relationship between urinary nickel exposure and serum lipid profiles in the US general population, and to explore the mediating effect of body mass index (BMI). The findings suggest that there is a negative association between urinary nickel levels and total cholesterol (TC), non-high-density lipoprotein cholesterol (non-HDL-C), and TC/HDL-C. Furthermore, BMI plays a significant mediating role in these associations.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Sibo Wang, Jiateng Sun, Lingfeng Gu, Yaxin Wang, Chong Du, Hao Wang, Yao Ma, Liansheng Wang
Summary: Urinary strontium (U-Sr) is found to have a nonlinear association with cardiovascular disease (CVD) in the general population. As U-Sr levels increase, the prevalence of CVD decreases, but no significant association is observed on the right side of the inflection point.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2023)
Article
Chemistry, Physical
Bo Sun, Sibo Wang, Xiao Li, Wei Zhang, Jiao Li, Qingqing Pan, Fangbin Liu, Zhongmin Su
Summary: Developing stable and efficient electrocatalysts for clean energy production has been achieved through the preparation of nickel and Mo2C nanoparticles coated with N-doped carbon layers. The resulting Ni/Mo2C@NC electrocatalyst exhibits excellent electrocatalytic hydrogen generation activity and stability. This article presents a general approach for preparing transition metal combined molybdenum carbide electrocatalysts for sustainable energy generation and conversion.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Cardiac & Cardiovascular Systems
Sibo Wang, Di Zhao, Tongtong Yang, Bo Deng, Jiateng Sun, Lingfeng Gu, Hao Wang, Liansheng Wang
Summary: This study aimed to investigate the association of serum osmolality with long-term all-cause and cardiovascular mortality among adults in the United States. The findings showed a nonlinear relationship between serum osmolality and all-cause and cardiovascular mortality, with the lowest risk occurring at an osmolality of 278 mmol/kg. These findings suggest the importance of managing serum osmolality for long-term health outcomes.
NUTRITION METABOLISM AND CARDIOVASCULAR DISEASES
(2023)
Article
Entomology
Sibo Wang, Hongjia Yang, Yushuo Hu, Chunyu Zhang, Dong Fan
Summary: High-density environment of Mythimna separata leads to melanization and overeating behavior, causing serious damage to crops. This study investigated the impact of population density on M. separata through transcriptome and metabolome analysis, revealing the molecular mechanism of phase change and overeating behavior under high population density. The insulin-like signaling pathway plays a crucial role in this process.
Article
Physics, Multidisciplinary
Xiaoying Qu, Hui Tong, Chencan Wang, Sibo Wang
Summary: A novel description of strongly interacting pure neutron matter (PNM) is presented using the relativistic Brueckner-Hartree-Fock (RBHF) theory. The scalar and vector components of the single-particle potentials are compared with RBHF calculations without negative-energy states. The results show that the binding energies of PNM are softer than those predicted by the Brueckner-Hartree-Fock theory with three-body forces, and are consistent with Monte Carlo simulations and many-body perturbation theory within uncertainties. The equation of state for neutron star matter is also in agreement with astrophysical observations and heavy-ion collision experiments. Additionally, the tidal deformabilities of binary neutron star systems are calculated and found to be consistent with observational constraints from GW170817.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2023)
Article
Physiology
Ze-yang Yu, Ying-qi Xing, Cong Li, Si-bo Wang, Xiao-nan Song, Cui-cui Wang, Li-juan Wang
Summary: This study aimed to evaluate the reliability of ultrasonic optic disc height (ODH) and optic nerve sheath diameter (ONSD) for elevated intracranial pressure (ICP). The results showed a positive correlation between ODH and ICP. Combining ODH and ONSD provided a more accurate assessment of ICP.
FRONTIERS IN PHYSIOLOGY
(2023)
Article
Neurosciences
Ruijie Li, Sibo Wang, Jing Lyu, Ke Chen, Xiaxin Sun, Junjie Huang, Pei Sun, Susu Liang, Min Li, Mengke Yang, Hongbang Liu, Shaoqun Zeng, Xiaowei Chen, Longhui Li, Hongbo Jia, Zhenqiao Zhou
Summary: This study introduces a high-speed two-photon microscope based on a custom-built acousto-optic deflector (AOD) that provides high temporal resolution and versatility. By combining AOD with resonance-galvo (RS) scanning, the microscope allows for stepwise magnification from population view to subcellular view with high spatial and temporal resolution. The results demonstrate that this method can effectively measure the velocity of neuronal activities and blood flow.
Article
Agronomy
Shaojiong Huang, Kaoxin Pan, Sibo Wang, Ying Zhu, Qing Zhang, Xin Su, Hongjun Yu
Summary: An automatic navigation fruit-picking platform with voice control was developed to address the labor-intensive and inefficient fruit picking process in dwarf high-density orchards. The platform utilized a voice-controlled extendable working platform and an automatic navigation system using China's Beidou navigation satellite system. Tests showed that the platform had sufficient navigation accuracy for routine operation in orchards.
Proceedings Paper
Physics, Nuclear
Peter Ring, Sibo Wang, Hui Tong, Qiang Zhao, Chencan Wang, Jie Meng
Summary: Considerable progress has been made in recent years in the ab-initio calculations of nuclear structure using non-relativistic many-body methods. The Dirac-Brueckner-Hartree-Fock theory offers a relativistic ab-initio approach that can reproduce the saturation properties of symmetric nuclear matter without three-body forces. However, the equations have only been solved for positive energy states, and the inclusion of negative energy states in various approximations has led to differences in isospin dependence. Recent efforts have solved this problem by providing a complete solution to the self-consistent relativistic Brueckner-Hartree-Fock equations in asymmetric nuclear matter. However, extending this theory to finite nuclear systems is challenging due to its numerical complexity.
13TH INTERNATIONAL SPRING SEMINAR ON NUCLEAR PHYSICS PERSPECTIVES AND CHALLENGES IN NUCLEAR STRUCTURE AFTER 70 YEARS OF SHELL MODEL, ISS 2022
(2023)
Article
Environmental Sciences
Yu-Jie Wu, Si-Bo Wang, Jia-Teng Sun, Ling-Feng Gu, Ze-Mu Wang, Bo Deng, Hao Wang, Lian-Sheng Wang
Summary: This study examined the relationship between urinary cadmium (U-Cd) and subclinical myocardial injury (SC-MI) in older people without cardiovascular disease (CVD). The results showed a significant association between U-Cd and cardiac infarction/injury score (CIIS) and a higher likelihood of SC-MI in the highest quartile of U-Cd. This suggests that U-Cd may be a novel risk factor for SC-MI.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Astronomy & Astrophysics
Pianpian Qin, Zhan Bai, Sibo Wang, Chencan Wang, Si-xue Qin
Summary: Starting from the relativistic Brueckner-Hartree-Fock theory for nuclear matter and the Dyson-Schwinger equation approach for quark matter, this study explores the possible hadron-quark phase transition in the interior of a neutron star. The first-order phase transition and crossover are studied using the Maxwell construction and three-window construction, respectively. The mass-radius relation and tidal deformability of the hybrid star are calculated and compared to observational and gravitational wave detection constraints.
Article
Physics, Nuclear
Hui Tong, Jing Gao, Chencan Wang, Sibo Wang
Summary: Relativistic Brueckner-Hartree-Fock (RBHF) theory in the full Dirac space is used to determine the momentum dependence of scalar and vector components of single-particle potentials. The method is applied to explore the properties of 208Pb by using the microscopic equation of state for asymmetric nuclear matter and a liquid droplet model. The neutron and proton density distributions, binding energies, radii, and neutron skin thickness in 208Pb are calculated. The charge densities predicted by the RBHF theory in the full Dirac space are compared with experimental data for elastic electron-nucleus scattering, showing good agreement. The uncertainty arising from variations of the surface term parameter f0 in the liquid droplet model is also discussed.
Article
Physics, Nuclear
Sibo Wang, Hui Tong, Qiang Zhao, Chencan Wang, Peter Ring, Jie Meng
Summary: The study investigates nucleon effective masses in neutron-rich matter using the relativistic Brueckner-Hartree-Fock (RBHF) theory in the full Dirac space. The effective masses of neutrons and protons in symmetric nuclear matter are consistent with empirical values. In neutron-rich matter, the neutron has a larger effective mass compared to the proton, and the predicted neutron-proton effective mass splittings at the empirical saturation density are related to the isospin asymmetry parameter. The study's results align with other ab initio calculations and constraints from nuclear reaction and structure measurements.