China University of Petroleum, Beijing

Accelerated Zeolite Defect Healing Suppresses Oxygen-Containing Species Trapping for Tandem Propene Epoxidation

Abstract Selective oxidation of chemical feedstocks with in situ-generated H2O2 offers a sustainable route to high-value oxygenates, yet such tandem catalysis is often fundamentally limited by the trapping of oxygen-containing species, including H2O2-derived intermediates and oxy...

Numerical Evaluation of Natural Gas Flooding Potential in a Deep Sandstone Reservoir Integrated with Phase Behavior

Deep sandstone reservoirs typically exhibit complex geological characteristics, including high temperature, high pressure, and high salinity. These reservoirs are predominantly developed using a wide well spacing strategy under natural depletion and water flooding, and no mature...

Middle Jurassic–Lower Cretaceous Depositional Facies Evolution and a Fan-Delta–Beach-Bar Model Based on a Case Study from the Anjihai Section in the Southern Junggar Basin

Lake-margin successions preserve interactions between terrestrial sediment supply and lacustrine deposition. We examined the Toutunhe–Qingshuihe succession at the Anjihai section in the western sector of the southern Junggar Basin using outcrop logs, lithofacies descriptions, sed...

Well-dispersed CuZn catalysts supported on mesoporous alumina for efficient methanol steam reforming via EDTA-assisted impregnation

Methanol steam reforming (MSR) is a promising hydrogen production technology, but conventional Cu-based catalysts suffer from insufficient activity and stability. Herein, mesoporous Al-TUD-1 with large surface area and three-dimensional porous structure was prepared by using a fa...

Energy Trade and Welfare Effects of the 2025 US–China Tariff Shocks: A Recursively Updated GTAP Analysis

The 2025 tariff escalation between the United States (US) and China generated uneven macroeconomic and energy-trade effects. Using a Global Trade Analysis Project (GTAP) model updated recursively to a common 2023 benchmark, we analyze five independent cumulative-tariff scenarios,...

Structural Design and Experimental Investigation of the Mechanical Performance of Aluminum-Foil- and EVOH-Barrier Unbonded Flexible Pipes for Hydrogen Transport

The large-scale deployment of hydrogen energy has created an urgent demand for safe, efficient, and cost-effective hydrogen transportation infrastructure. Reducing transportation costs and improving pipeline reliability are critical for the development of hydrogen supply systems....

Adaptive-Robust Mean-CVaR Optimization for Crude Oil Blending and Scheduling under Property Uncertainty

Abstract Refineries stabilize the crude distillation unit feed by blending grades delivered under long-term contracts with cargoes purchased on the spot market. The true boiling point (TBP) yields of a delivered batch deviate from the nominal assay, and an occasional spot cargo d...

Numerical Investigation of Crack Driving Force and Ultimate Bearing Capacity of D1,422 mm X80 Pipelines with Composite Groove Girth Weld

Existing prediction models for the ultimate bearing capacity of circumferential welds are primarily limited to manual or combined automatic welding with single V-grooves, failing to address full-automatic welding with composite grooves, and that is a critical technical gap for la...

Green Innovation Effects and Driving Factors of Urban Environmental Information Disclosure: Based on fsQCA and Complex Mediation Analysis

Abstract Government environmental information disclosure (Pollution Information Transparency Index, PITI) is a critical step in the environmental management system. To investigate the key elements driving government environmental information disclosure in a complex environment, t...

Pitting corrosion inversion of buried pipelines based on weak magnetic detection and interpretable SACCO-ELM

Buried pipelines play an important role in long-distance energy transportation. However, buried pipelines are prone to pitting corrosion due to harsh soil environment, making quantitative pitting corrosion inversion critical for safety. This paper proposes an interpretable invers...

Tracing Shale-Gas Migration in Complex Tectonic Settings: Evidence from Carbon-Isotope Fractionation Patterns

Abstract Late-stage tectonic deformation strongly influences shale-gas preservation and redistribution, but conventional methods rarely resolve gas-migration pathways and directions. Here, we test whether the direction of spatial carbon-isotope gradients can indicate the dominant...

Beam-offset thermoreflectance with Bayesian optimization to measure the anisotropic thermal properties of semiconductor superlattices

The directional nature of heat conduction in semiconductor superlattices—marked by significant differences between in-plane and cross-plane pathways—poses substantial challenges for precise thermal property assessment. Conventional frequency-domain thermoreflectance (FDTR) techni...

Determining the Partial Molar Volume of the Hydrated Electron from First-Principles Simulated Solution Volumes

Abstract The microscopic solvation structure of the hydrated electron remains difficult to characterize directly despite extensive experimental and theoretical efforts. The partial molar volume,V¯e−, provides an indirect thermodynamic probe, but quantitative agreement with experi...

Thermodynamic matching mechanism and topological evolution for liquid natural gas integrated liquid air energy storage: A dual-stage refrigeration strategy with pre-cooling

The integration of liquefied natural gas (LNG) cold energy with liquid air energy storage (LAES) is regarded as a promising route for reducing air-liquefaction power consumption and improving large-scale energy-storage performance. In existing studies, performance improvement is...

Construction of rGO/WO3/SiNWs Ternary Composite Structure and Its Low-Temperature NO2 Gas-Sensing Performance

To address the issues of low sensitivity and high operating temperature in silicon nanowire (SiNWs)-based NO2 sensors, this study constructs a ternary rGO/WO3/SiNWs heterostructure by spin-coating reduced graphene oxide/tungsten oxide (rGO/WO3) composites onto SiNWs surfaces. Sys...

Mobility Control and Adsorption-Retention Behavior of an Engineered-Strain-Derived Microbial Polysaccharide in High-Temperature and High-Salinity Porous Media

Abstract Conventional polymers often undergo viscosity loss and performance deterioration in high-temperature and high-salinity reservoirs. A novel microbial polysaccharide system developed from an engineered oil-recovery strain exhibits good temperature and salt tolerance as wel...

Application of Grey Relational Analysis in Oil and Gas Resource Exploration

Since its inception in 1982, grey relational analysis (GRA) has evolved from early point relational coefficient models and generalized grey relational analysis models to contemporary complex models integrating multiple methods and robustness assessment. Its research objects have...

Flexural dispersion curves of acoustoelastic borehole waves by the perturbation method in a triaxially stressed transversely isotropic formation with vertical symmetry

Abstract Cross-dipole acoustic logging is widely used to determine the maximum horizontal stress azimuth and stress imbalance in vertical boreholes within isotropic formations. However, theoretical analysis of dipole flexural dispersion under imbalanced stresses in transversely i...

Numerical simulation study on critical liquid and sand carrying velocities of gas-liquid-sand multiphase flow in vertical and horizontal wellbore sections

A segmented simulation is used to examine flow behaviors in vertical and horizontal shale-oil wellbores. Built with Poly-Hexcore meshing, the model couples Euler-Euler and KTGF approaches, and incorporates the Dranchuk-Abu-Kassim equation for real-gas compressibility along with a...

True Triaxial Physical Simulation Experiment on the Fracture Propagation Law of Hydraulic Fracturing for Horizontal Wells in the Roof of Soft and Low-Permeability Coal Seams

The key to exploiting coalbed methane in soft and low-permeability coal seams by deploying horizontal wells in roof strata lies in whether hydraulic fractures can propagate into the coal seam after initiating from the roof. True triaxial physical simulation experiments based on 1...