Pixel-to-pixel thermal pattern prediction for heat-loss quantification in industrial piping systems via conditional U-Net with finite element-based transfer learning
Available online 27 August 2026
•Superpixel segmentation with conditional U-Net for heat-loss analysis is proposed.•The model predicts a baseline from observed thermal images of the segmented region.•Superpixel-based segmentation...
Hydrogen-steel interactions in gaseous environments studied by density functional theory
Available online 23 August 2026
Hydrogen transport in pipelines contributes to accelerated realization of a full-scale hydrogen economy. However, steel pipelines are potentially susceptible to hydrogen embrittlement in high-pressure...
Influence of guar gum on the flow characteristics and wear performance during pipeline transportation of coarse iron ore slurry
Available online 22 August 2026
This investigation focuses on the effectiveness of Guar gum (GG) as a rheology modifier, slurry stabilizer, drag reducer, and wear inhibitor for handling concentrated and coarse iron ore slurries in...
Quantification of the Maximum Allowable Pressure Penalties in Hydrogen Transmission Pipelines: A Parametric Assessment of the Material Performance Factor Hf under ASME B31.12–PL Option A
Available online 19 August 2026
•Quantifies maximum allowable pressure penalties in hydrogen transmission pipelines.•Compare ASME B31.12 and ASME B31.8 using identical geometry and material inputs.•Identifies activation of fracture-control...
Experimental and Computational Investigations of Cured-in-Place Structural Liners for Pipeline Rehabilitation: A Multi-Level Review
Available online 13 August 2026
In the United States, there have been approximately 8,000 pipeline accidents since 1986, resulting in over 500 deaths, 2300 injuries, and $7 billion in property loss, with 35% of failures caused by...
Overcoming Noise Interference and Sample Scarcity in Digital Radiography: A Synergistic Approach for Intelligent Pipeline Girth Weld Defect Recognition
Available online 13 August 2026
•A synergistic framework is developed to overcome intense noise interference and sample scarcity in DR weld defect recognition.•A dual-dimensional GRDM is proposed, achieving 91% edge gradient retention...
Challenges and Advancements in Offshore Pipelines In-Line Inspection (ILI) and Pigging: A Comprehensive Review
Available online 13 August 2026
•Reviews challenges in offshore pipeline in-line inspection (ILI).•Details ILI tools: caliper, MFL, UT, ECT, and EMAT technologies.•Addresses thick walls, coatings, high pressure, and sour gas issues.•Proposes...
Fracture Evolution and Control of Supercritical/Dense CO2 Pipelines under Thermal-Fluid-Chemical-Mechanical (TFCM) Coupling: A Review of Initiation, Propagation, and Arrest Mechanisms
Available online 12 August 2026
In the context of the large-scale application of global carbon capture, utilization and storage (CCUS) technology, the safety guarantee of supercritical/dense CO2 pipeline is crucial. Due to the complex...
Research progress of data-driven approaches in oil and gas pipeline magnetic flux leakage detection
Available online 12 August 2026
•98 publications on data-driven methods in magnetic flux leakage (MFL) are reviewed.•The current research state and evolution of research hotspots are identified.•Future research needs for data-driven...
Intelligent Decision Support for Safety Risk Management of Urban Gas Pipeline Network Leakage by Integrating Large Language Models and Knowledge Graph Technologies
Available online 12 August 2026
To address the systemic challenges in risk prevention and control of urban gas pipeline network leakage accidents (UGPNLAs), this study conducts a systematic analysis of 209 accident investigation reports....
Prediction of pipeline remaining useful life based on few-shot crack depth data
Available online 12 August 2026
•We expand the few-shot crack depth data by employing the Paris equation and LSTM neural networks, which constructs a comprehensive temporal sequence of crack depths, thereby establishing a reliable...
Effect of oxygen and nitrogen on hydrogen adsorption and permeation processes
July 2026
•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...
Understanding detection success of belowground natural gas leaks in urban environments through controlled release experiments
July 2026
•Urban environment significantly reduces natural gas pipeline leak detection success.•Higher leak rates improve the probability of detection by up to 37 pp (percentage points) compared to lower leak...
Characterization and potential distribution mapping of cathodically protected buried pipelines based on homogeneous and heterogenous factors
July 2026
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...
Synergistic evaluation of regular and radial-fin-integrated pipe performance using limit analysis and evolutionary symbolic modeling
July 2026
Subsea buried pipes in offshore field conditions are most vulnerable to upheaval buckling, a risk that is especially pronounced in soft clay soils where uplift resistance, expressed by the dimensionless...
Transformation mechanism of martensite-austenite (M-A) constituent in the heat-affected zone of high strength pipeline steel and its correlation with toughness deterioration
July 2026
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...
Knowledge graph construction for pipeline standards: Enhancing efficiency in the oil and gas industry
July 2026
The intelligent development of oil and gas pipelines is crucial for overcoming the challenges of transitioning from informatization to intelligence, especially considering the vast number of standards...
Existing natural gas networks for 100% hydrogen transport: a case study in Europe
July 2026
Hydrogen transportation via dedicated pipelines or repurposed existing natural gas (NG) grids is one of the most reliable and cost-efficient means of delivering hydrogen over long distances. However,...
Carbon dioxide pipeline leakage risk assessment based on pipeline failure probability correction and CO2 concentration dispersion distance prediction
July 2026
Given that supercritical or dense-phase carbon dioxide pipelines operate under high-pressure conditions, there exists a significant risk of high-pressure carbon dioxide leakage due to factors such as...
Unravelling corrosion mechanisms of X80 pipeline steel in ammonia environment with chloride and oxygen
July 2026
Ammonia (NH3) is a promising hydrogen carrier, yet the corrosion mechanisms of pipeline steels in impurity-contaminated NH3 environments remain unclear. This study elucidates the effects of chloride...
Experimental and numerical investigation of repaired pipeline by composite sleeve using DIC technique and FEM
July 2026
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...
A review of the challenges, solutions and economics of hydrogen transmission in steel pipelines
July 2026
Developing transmission pipelines is considered essential to realising renewable hydrogen’s decarbonisation potential in industry, transport, and energy storage. Numerous studies identify pipelines...
Flow characteristics and leakage rate calculations of microchannels in hydrogen-blended natural gas sealing structures
July 2026
•Described the mass transfer process of hydrogen-natural gas multi-component systems.•Developed a flow model for multi-component gases leaking through microchannels on sealing surfaces.•Analyzed the...
Dynamic risk assessment framework for offshore pipelines corrosion under insulation
July 2026
Corrosion under insulation (CUI) remains a critical threat to the integrity and reliability of offshore and marine pipeline systems due to its hidden nature, complex degradation mechanisms, and limited...
