China University of Petroleum, Beijing

Mass transfer, phase transition processes and mechanisms of transcritical-CO2 in rapid leakage from offshore saline aquifer storage: A visualization study

Geological storage of CO 2 in saline aquifers is a critical strategy for major global economies to achieve carbon neutrality. With the transitions from pilot-scale demonstrations to large-scale implementation, ensuring its safety and effectiveness has become a primary focus. The...

Synergistic Reaction Pathway Regulation and Process Simulation of Piperazine-Promoted AMP-EG Water-Reduced Absorbents for Low-Energy CO2 Capture

Abstract An AMP-PZ-EG-H2O water-reduced absorbent was developed for CO2/CH4 separation in natural gas decarbonization. Promoter screening and composition optimization identified PZ as the preferred promoter and an AMP/PZ mass ratio of 2:1 with a total AMP-PZ-EG mass fraction of 5...

Molecular Mechanisms of CTAB-Induced Oil Droplet Detachment in Shale Nanopores

Abstract The efficient recovery of shale oil is severely hindered by the strong oil–solid interactions and nanoscale confinement within shale reservoirs, which substantially restrict crude oil mobility. Although surfactant flooding has emerged as an effective enhanced oil recover...

An SBOA-optimized hybrid grey-seasonal model for nonlinear energy production forecasting

Purpose To address the challenges of low accuracy and poor generalization in energy time series forecasting, which stem from its nonlinear, non-stationary, and limited-sample-size nature, this study proposes a hybrid forecasting framework. The model was designed to be highly accu...

Multi-channel VACNTs Enabling Efficient Electron Percolation Networks in Lithium-Ion Battery

Abstract Traditional carbon black conductive agents have become indispensable in lithium-ion batteries because of their low cost. However, their high load and conductive gap limit the performance of lithium-ion batteries. This study employs vertical gas-supply chemical vapor depo...

Experimental Study on the Mechanism and Effect of Middle-Phase Microemulsion Flooding in a Conglomerate Reservoir

Abstract To address the characteristics of strong heterogeneity, complex pore-throat structures, and poor adaptability of conventional flooding systems in conglomerate reservoirs, a systematic comparative study on the oil displacement efficiency of middle-phase microemulsion and...

Surrogate-Assisted Inverse Design of the Power-Law Index in Axially Functionally Graded Fluid-Conveying Pipes for Target Modal and Deflection Performance

A surrogate-assisted inverse design framework is presented for selecting the power-law index of clamped–clamped axially functionally graded (AFG) Timoshenko pipes conveying fluid. The GITT model, 336-sample database, and trained MLP forward surrogate were developed in our previou...

Pressure-Controlled Drainage Strategy for Deep Coalbed Methane Wells Considering Stress Sensitivity

China’s deep coalbed methane (CBM) resources hold significant development potential, yet their commercial exploitation remains hindered by four interrelated reservoir challenges: substantial burial depth, elevated in situ stress, ultra-low matrix permeability, and pronounced stre...

Decision Making for Condition‐Based Maintenance of Rotating Machinery

ABSTRACT As critical rotating machinery at gas transmission stations, air compressors suffer from limitations of fixed‐interval maintenance during long‐term operation, which fails to reflect actual equipment health, while maintenance threshold setting and rapid degradation identi...

Wildfire exposure and political participation in Africa

Abstract Civic engagement can shape collective responses to climate change. However, evidence on how climate-related disasters affect political participation in Africa remains limited. Combining Global Fire Atlas records with Afrobarometer surveys of more than 100,000 people in 3...

Insights on Dual‐Functional Ionic Liquid Interfacial Layer for Efficient CO 2 Electroreduction to C 2+ Products in Acid

ABSTRACT Electrocatalytic CO 2 reduction reaction (CO 2 RR) in acidic electrolyte is hindered by severe hydrogen evolution reaction (HER) and inefficient C–C coupling, leading to poor selectivity toward multicarbon (C 2+ ) products. Here, we construct a dual‐functional interfacia...

Insights on Dual‐Functional Ionic Liquid Interfacial Layer for Efficient CO 2 Electroreduction to C 2+ Products in Acid

ABSTRACT Electrocatalytic CO 2 reduction reaction (CO 2 RR) in acidic electrolyte is hindered by severe hydrogen evolution reaction (HER) and inefficient C–C coupling, leading to poor selectivity toward multicarbon (C 2+ ) products. Here, we construct a dual‐functional interfacia...

Interactions between Photochemical and Microbial Degradation on the Pyrogenic Soil-Derived Dissolved Organic Matter

Abstract Photochemical and microbial processes act as primary pathways regulating the transformation and fate of pyrogenic dissolved organic matter (pyDOM) in natural environments, yet their interactions remain poorly understood under different heating conditions. Here, we combin...

Application of anisotropic frequency-dependent inversion to shale reservoirs in the Zhaotong Demonstration Area, Sichuan Basin

Abstract The accurate characterization of fracture density and gas saturation is crucial for successful shale gas reservoirs developments. We present an integrated approach that combines rock physics modeling with anisotropic frequency-dependent inversion to characterize shale re...

Estimation of Property Value Changes from Nearby Carbon Capture, Utilization, and Storage Projects in the United States

Abstract Carbon capture, utilization, and storage (CCUS) is vital to decarbonization, but its socioeconomic impact on nearby communities remains understudied. Using property-level housing transaction data (1990–2021) matched to nationwide CCUS project records, we apply a hedonic...

Study on the oil-water two-phase flow characteristics of tight reservoir based on digital core technology

Abstract Tight reservoirs are characterized by low porosity, low permeability and complex pore structures, resulting in poor waterflood recovery efficiency. Existing microscale two-phase flow studies are mostly based on two-dimensional geometric models, and the physical mechanism...

Effects of Guozhuang dance participation on alexithymia in healthy adults: The chain mediating roles of empathy and social connectedness

This study examined the association between participation in Guozhuang dance and alexithymia among healthy adults, with cognitive empathy and social connectedness as potential mediators. A total of 560 healthy adults completed the Physical Activity Rating Scale-3, Basic Empathy S...

Time‐State‐Dependent Reliability Analysis of Wheel‐Rail Contact Parameter Degradation for High‐Speed Trains

ABSTRACT Wheel‐rail contact parameters are essential to high‐speed‐train stability, but their stochastic degradation complicates reliability analysis. A time‐state‐dependent reliability method is developed for complex thresholds defined implicitly or probabilistically. Different...

Physics-Guided Hybrid Intelligent Method for Predicting Mixed Oil Length in Multiproduct Pipelines

Abstract To ensure the reasonableness of the contamination oil cutting plan as well as to improve product quality and operation efficiency, accurately predicting the length of mixed oil in pipelines is crucial. However, due to the high-dimensional nonlinear characteristics in mix...

Edge-Hydroxylated Boron Nitride Nanosheets for Simultaneous Improvement of Thermal and Mechanical Properties of Composite Films

Abstract With the rapid evolution of high-power electronics driven by advanced communication technologies and artificial intelligence, efficient thermal management has become a critical challenge. Hexagonal boron nitride (h-BN)/polymer composites, which integrate the flexibility...