Research progress on dynamic crack propagation and crack arrest models of supercritical and dense-phase CO2 pipelines
September 2025
In the past decade, research on the propagation and arrest of CO2 pipeline fractures has achieved some results. This paper comprehensively reviews and evaluates the full-scale burst test, arrest control...
Benzylamine as volatile corrosion inhibitor for top-of-the-line corrosion in water-hydrocarbon co-condensation environment
September 2025
Volatile corrosion inhibitor (VCI) injection is a promising method employed to mitigate top-of-the-line corrosion (TLC) in wet gas pipelines. Amine is the most common type of VCI employed for TLC mitigation,...
Experimental and mechanism study on the synergistic influence of asphaltene and pressure on the flow and rheological characteristics of waxy oil
September 2025
In underground reservoirs and offshore oilfields, the production and transportation of waxy oil inevitably involve pressure and asphaltene environment. However, the effect of asphaltene on the flow...
Effect of oxygen and nitrogen on hydrogen adsorption and permeation processes
Available online 14 September 2025
•Dissolved gas variations negligibly affect Deff during hydrogen charging.•High H surface coverage and slow Tafel reaction rate occurred in N2 condition.•N and O atoms shown lower adsorption energies...
Hydraulic Transient Analysis in Low Gas-Liquid Ratio Pipelines Under Valve Closure Conditions: Pressure Surge Characteristics and Predictive Modeling
Available online 14 September 2025
•Pressure surge mechanism of liquid column separation was revealed.•Influence of gas-liquid ratios and flow regimes on water hammer was quantified.•A critical gas-liquid ratio for negligible water hammer...
Acoustic signal-based identification of pipeline defects using optimized MFCC and LSTM
Available online 13 September 2025
Detecting and classifying structural defects in pipelines under complex operational conditions remains a challenge. This study proposes a multi-class recognition method combining an improved Mel Frequency...
Numerical simulation study on leakage and diffusion of medium and low pressure buried gas pipelines considering soil cavitation effect
Available online 10 September 2025
Buried gas pipelines often experience leakage accidents due to factors such as corrosion, natural disasters, and third-party damage, leading to dangerous events such as fires, explosions, and soil erosion...
Numerical Simulation of High-pressure Cavitation Characteristics of Thick Orifice Plate
Available online 8 September 2025
•Transient simulation can reflect transient and variable cavitation flow•There is a periodic cavitation phenomenon between cavitation and non-cavitation flow•In a certain pressure drop range, periodic...
Synthetic Magnetic Flux Leakage Signal Generation Using Diffusion Models: A Novel Approach to Improve Pipeline Defect Detection Accuracy
Available online 8 September 2025
Magnetic flux leakage (MFL) based inline inspection techniques effectively ensure the safety of oil and gas pipeline transportation. The application of deep learning models to MFL signal processing...
Transformation mechanism of martensite-austenite (M-A) constituent in the heat-affected zone of high strength pipeline steel and its correlation with toughness deterioration
Available online 4 September 2025
Martensite-austenite (M-A) constituent in the heat affected zone (HAZ) usually plays a detrimental role in toughness, especially in the intercritically reheated coarse-grained (ICCG) HAZ. However, its...
Experimental and numerical investigation of repaired pipeline by composite sleeve using DIC technique and FEM
Available online 4 September 2025
This research investigates the impact of a composite laminate sleeve on a corroded pipeline during a hydrostatic test, adhering to the ISO-24817 & ASME PCC-2 standards, employing the Digital Image Correlation...
Comprehensive Review on Fitness-for-Service Assessment of Corroded Pipelines - Focus on Model Validation and Industry Applications
Available online 4 September 2025
Corrosion poses a significant threat to global pipeline infrastructure, compromising burst capacity and causing severe safety, environmental, and economic impacts. These pipelines transport gases and...
A Comparative Study on the Effect of GMAW Welding Current on the Performance of API 5L GrB Pipeline Steel Welds for Oil and Gas Industrial Applications
Available online 3 September 2025
The reliability of oil and gas transportation depends heavily on weld quality during pipeline construction. This study investigates the effect of gas metal arc welding (GMAW) current on API 5L GrB pipeline...
An MILP model for the coupled design and operation optimization of large-scale gathering pipeline networks
Available online 3 September 2025
The optimization of gathering pipeline networks (GPNs) involves both design and operation, which are highly interdependent but often addressed separately, leading to suboptimal solutions and higher...
A semantic segmentation and Fluent simulation-based quantitative detection method for natural gas pipeline leakage
Available online 2 September 2025
•GasUNet with SCConv achieves 87.62% Dice and 77.99% IoU, outperforming nnUNet and U-Net in gas leakage segmentation.•Machine vision enables non-contact leakage quantification, combining semantic segmentation...
Characteristics of liquefied natural gas facility incidents and associated greenhouse gas emissions: A statistical analysis
Available online 2 September 2025
Liquefied natural gas (LNG) facilities play a pivotal role in the natural gas (NG) trade, serving essential functions in marine terminals, storage, utilities, vehicular fuel, and specialized applications....
Insight into integrity and corrosion behaviour of damaged pipe casing L80 13-3/8” schedule 40 under marine conditions: A preliminary study
Available online 1 September 2025
This study investigates the susceptibility of API 5CT L80 Type 1 to stress corrosion cracking (SCC) induced by mechanical drilling and excessive torque as a precursor in offshore environments, thereby...
Characterization and Potential Distribution Mapping of Cathodically Protected Buried Pipelines based on Homogeneous and Heterogenous Factors
Available online 31 August 2025
The use of a close interval potential survey (CIPS) for cathodically protected buried pipelines can provide useful information about the active or passive state of the pipeline/coating interface and...
Risk assessment of urban gas pipeline networks considering regional resilience using a DOOBN framework
Available online 29 August 2025
•Regional resilience is integrated into the safety assessment framework.•A DOOBN-based framework is proposed for UGPN safety evaluation.•Regional resilience effects on UGPN accident probability and...
Axial mechanical response and deformation mechanism of vertical curved pipe jacking: Reduced-scale test and numerical simulation
Available online 29 August 2025
Vertical curve pipe jacking has become a key solution for installing the least damaged infrastructure in existing structures in the development of modern cities. However, the stress state of the pipe...
Life-Line Assurance in the Urbanization Process: Revealing the Coupled Safety Resilience of Municipal Underground Pipelines and Its Influential Characteristics
Available online 28 August 2025
•A novel DANP-CSR-MUPs framework is developed for evaluating the coupled safety resilience of Municipal Underground Pipelines (MUPs) using the DANP method.•The study evaluates four major MUP types (gas,...
A Review: Research and Application of Pipeline Robots in the Oil and Gas Industry
Available online 28 August 2025
This study reviews the research and application advancements of pipeline robots in oil and gas pipelines. Oil and gas pipelines, as critical infrastructure for global energy transportation, have historically...
Effect of hydrogen trap density on efficiency of irreversible traps in a line-pipe steel
Available online 27 August 2025
Hydrogen embrittlement (HE) presents a significant challenge for the enduring reliability of high-strength steels employed in pipelines and energy infrastructure. This challenge arises from the intricate...
A Comprehensive Survey on Pipeline Monitoring Technologies: Advancements, Challenges, Market Opportunities and Future Directions
Available online 27 August 2025
Pipelines are essential infrastructure used to transport resources such as oil, gas, water, and sewage. Efforts should be driven toward ensuring the safe operation of these pipelines, as this directly...
Soil resistance under pipe vertical uplift in compacted clay: shallow tensile and deep shear failure mechanisms
Available online 26 August 2025
The paper investigates the mobilization of soil resistance against pipe vertical uplift in compacted Regina clay using both physical and numerical modelling. Results of the physical model tests reveal...
