China University of Petroleum, Beijing

High-fidelity nonlinear dynamic modeling and hierarchical controller design for riser recoil

This dataset provides the numerical simulation data supporting the manuscript entitled "High-fidelity nonlinear dynamic modeling and hierarchical controller design for riser recoil". The data were generated from a high-fidelity nonlinear dynamic model of a marine riser with a spl...

A Compositional and Genetic Framework for Shale Lithofacies Classification and Reservoir Quality Prediction: Insights From the Wufeng‐Longmaxi Formation, South Sichuan

ABSTRACT Although shales are of fundamental importance in geological research and energy exploration, no consensus has been reached on a unified classification and nomenclature that adequately reflect their multiscale heterogeneity and genetic origins. To address this gap, we pro...

Mechanisms of Overpressure Formation and Distribution Prediction in Ultra‐Deep Carbonate Reservoirs in the YB Area, Sichuan Basin

ABSTRACT Understanding the formation mechanisms and predicting the distribution of abnormally high pressure in marine carbonate reservoirs are fundamental to ultra‐deep hydrocarbon exploration. This study investigates the ultra‐deep carbonate grain‐beach reservoirs of the second...

Whether smaller guest droplets facilitate hydrate conversion: Effects of nanodroplet size and droplet interactions from molecules perspective

To overcome the self-limiting of hydrate formation, dispersing the guest phase into smaller droplets to create more guest-water interfaces provides an effective strategy for enhancing hydrate conversion. However, dispersing the guest phase into a larger number of smaller droplets...

Amphiphilic MoS2 Nanosheet-Enhanced Salt-Tolerant Alkyl Polyether Sulfonate Surfactant Flooding System for Interfacial Regulation and Enhanced Oil Recovery Performance

Abstract The complex ionic environment in high-salinity reservoirs can weaken surfactant adsorption at oil–water interfaces and compromise interfacial film stability, limiting the effectiveness of chemical flooding systems for residual-oil mobilization. To improve the oil-displac...

Corrosion Failure Analysis of Tubing Couplings and the Mechanism of Flow-Accelerated Corrosion

Tubing couplings are recognized as a vulnerable link in pipe string integrity, accounting for over 60% of all failure incidents. In this study, a perforation-failed N80 double-male short sub retrieved from a coalbed methane jet pump well was systematically investigated. A multi-f...

Molecular Insights into the Inhibition Mechanisms of Modified PVCap Kinetic Inhibitors in Hydrogen Sulfide-Containing Gas Hydrate Systems

Abstract Gas hydrate blockage threatens pipeline safety in sour gas reservoirs, where hydrogen sulfide (H2S) accelerates hydrate formation and the conventional kinetic inhibitor poly N-vinylcaprolactam (PVCap) severely degrades. Microsecond-level molecular dynamics (MD) simulatio...

A Saturation-Constrained Four-Phase Acoustic Screening Model for Shallow Gas-Bearing Permafrost: Coupled Effects of Ice Cementation, Gas Saturation, and Pore Pressure

Shallow free gas trapped within or beneath polar permafrost can be destabilized by drilling-induced thermal and pressure perturbations, but its acoustic response is difficult to separate from variations in lithology and freezing state. This study develops a saturation-constrained...

Dynamics and coordination of water and carbon footprints in China, 2007–2023: drivers and supply-chain pathways

Coordinated water and carbon management requires identifying not only whether the two environmental pressures change in the same direction, but also which socioeconomic drivers and supply-chain pathways generate co-benefits or trade-offs. Existing studies rarely integrate tempora...

Porous Ag/NiO Nanosheet Catalysts With Electronic Metal–Support Interaction for Efficient Soot Oxidation via a NO x ‐Assisted Mechanism

ABSTRACT Metal–support interactions play a pivotal role in determining the catalytic performance of supported metal catalysts, yet rational control of interfacial structures remains challenging. Herein, porous NiO nanosheet catalysts were synthesized via a hydrothermal method and...

Incorporating Wave Physical Priors into Diffusion Models: A Novel Approach to Seismic Resolution Enhancement

Seismic resolution enhancement remains a critical challenge in exploration geophysics, particularly when processing field data characterized by limited bandwidth, strong noise, and insufficient labeled training samples. Existing deep learning methods typically rely on supervised...

Peptide G3 Suppresses Hyphal Development in Candida albicans by Disrupting β-1,3-Glucan

Abstract The increasing incidence of invasive candidiasis, driven by the hyphal morphology and virulence of Candida albicans (C. albicans), underscores an urgent need for alternative strategies to attack the fungus. In this study, we describe the potent fungistatic activity of th...

Resilient Fully Distributed Event‐Triggered Consensus Against DSS Attacks in Nonlinear MAS via Fractional‐Order Super‐Twisting Sliding Mode Control

ABSTRACT This paper proposes a fully distributed event‐triggered control strategy for nonlinear multi‐agent systems (MASs) that is resilient to distributed sequential scaling (DSS) attacks. A key innovation is the integration of fractional‐order super‐twisting sliding mode contro...

Fundamental insight into copper-based zeolite catalysts for NH3-SCR: Two decades’ progress and future perspectives

Amidst tightening mobile-source emission regulations, ammonia selective catalytic reduction remains the dominant post-treatment technology for NO x removal, with copper-exchanged zeolites (Cu-zeolites) serving as benchmark catalysts. Here, we systematically survey zeolite topolog...

Evaluating the Potential of Multi-Stage Fractured Horizontal Wells in Developing Low-Permeability Hydrates Using Numerical Production Models and DCF Approach

Multi-stage fractured horizontal wells are a critical technique for enhancing the productivity of low-permeability hydrates in the Shenhu Area of the South China Sea, yet their economic feasibility remains unclear. In this study, an improved discounted cash flow model was develop...

Multiphysics Modeling and Microscopic Analysis of Water-Based Heat Extraction from Hot Dry Rock Reservoirs

Global geothermal exploitation has not yet adequately compensated for the shortage of fossil fuel resources, primarily owing to limited heat transfer efficiency and the adoption of inappropriate development strategies. This study develops a fluid–structure interaction model tailo...

Research on Self-Optimization Regulation Method of Electric Submersible Pump Efficiency Based on DDPG

Electric submersible pumps (ESPs) are widely used for artificial lift because of their high liquid-handling capacity. However, changes in reservoir inflow and surface operating conditions can shift an ESP away from its high-efficiency operating range, thereby increasing energy co...

Non-Destructive Testing Technology for Natural Gas Pipeline Wall Thickness Measurement: A Comprehensive Review

With the gradual increase in demand for natural gas, the scale of global natural gas pipeline (NGP) construction is also gradually increasing. However, with the gradual increase in NGP laying, the reduction in pipeline wall thickness is the main cause of major safety accidents. I...

Critical stability evaluations of different types of solid amine sorbents in DAC processes

Direct Air Capture (DAC) technology plays a pivotal role in mitigating climate change by capturing CO 2 directly from the atmosphere. Solid amine adsorbents are highly regarded in the DAC field for their superior CO 2 adsorption capacity and relatively low energy consumption. In...

A size-dependent interfacial passivation strategy for achieving long-cycle and high-rate performance of silicon anodes in sulfide solid-state batteries

Silicon (Si) is considered an important candidate anode material for sulfide-based all-solid-state batteries (ASSBs), yet its pronounced volume variation during cycling readily induces solid-solid interfacial instability, severely limiting its electrochemical performance. In this...