Deep learning-based intelligent path planning system design for subsea pipeline laying
September 2026
Subsea pipeline route planning is one of the core challenges in marine engineering. Traditional methods, which rely on manual expertise and static algorithms, struggle to adapt to complex and dynamic...
Analytical probability distribution of running fracture length in transmission pipelines with crack arrestors
September 2026
This paper presents analytical derivations of the probability distribution of running fracture (RF) length in steel transmission pipelines that are equipped with crack arrestors. The RF length is defined...
Comparative study on the effects of sudden expansion and sudden contraction structures on the deflagration characteristics of hydrogen-methane-air
September 2026
This study investigates the effect of sudden contraction and expansion structures on the detonation flame propagation of hydrogen-methane-air mixtures through experiments and LES. The study introduces...
FPE‑YOLO: real‑time small‑object detection for third‑party damage in oil and gas pipeline integrity monitoring
September 2026
•A bio-inspired FPE-YOLO framework for small object detection in pipeline intrusion monitoring.•Progressive three-stage enhancement: attention → cross-scale fusion → feature enhancement.•Fovea Attention...
Dent strain and stress analyses and implications for API-RP 1183 - Part IIIB: Fatigue-life prediction for dented pipes
September 2026
API Recommended Practice (RP) 1183 considers three levels of assessment. Its processes up through Level 2, which were considered viable for single peak dents with smooth profiles, are the focus of Part...
Economic viability of liquefied natural gas pipeline construction: Influence of cascaded utilization of cold energy and distance-volume factors
September 2026
•Theoretical feasibility of LNG pipeline transportation is investigated.•The economic boundaries of LNG pipeline transportation are explored.•The application potential of LNG pipeline transportation...
Life-line assurance in the urbanization process: revealing the coupled safety resilience of municipal underground pipelines and its influential characteristics
September 2026
•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,...
Microscopic mechanism of wax precipitation and gelation of waxy crude oil based on molecular dynamics simulation
September 2026
•Molecular dynamics model links cooling-driven van der Waals dominance to gelation phase transition.•Wax-wax attraction drives gelation, aligning with macro-rheological trends.•RDF peaks rise, Rg drops,...
Research on the subdivision of oil delivery districts and adjustment of oil depots locations by the method of equidistant subdivision and weight proportion
September 2026
•Path optimization using spherical area improves accuracy over planar methods.•Integrated model cuts petrochemical delivery costs and boosts efficiency.•Algorithm suits energy distribution and multi-level...
A numerical simulation method for CO2 leakage considering non-equilibrium phase transition
September 2026
Carbon dioxide (CO2) exhibits high compressibility and complex phase-transition behavior. In the event of a leakage, CO2 undergoes rapid expansion and intricate phase transitions, resulting in a composite...
A review: Research and application of pipeline robots in the oil and gas industry
September 2026
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...
Assessment of releases from hydrogen and hydrogen-blended natural gas pipelines: A review
September 2026
With the global shift towards sustainable energy, hydrogen and hydrogen-blended natural gas (HBNG) pipelines are becoming integral components of low-carbon energy infrastructures. Nevertheless, the...
Data-driven leakage detection in gas pipelines through wavelet denoising and variogram-based kriging
September 2026
Pipeline leak detection must be both accurate and quick to ensure the operational integrity, safety, and sustainability of fluid transport systems. This work introduces an innovative integrated methodology...
Synthetic magnetic flux leakage signal generation using diffusion models: A novel approach to improve pipeline defect detection accuracy
September 2026
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...
A data-driven risk assessment framework for ammonia pipelines: Insights from 232 accident cases (1970–2023)
September 2026
Ammonia pipelines are gaining renewed attention as key enablers of hydrogen energy systems, offering a practical solution to hydrogen transport and storage. However, current safety standards remain...
Dent strain and stress analyses and implications for API-RP 1183 - Part IIIA: Dent fatigue analysis concepts and data
September 2026
API Recommended Practice (RP) 1183 considers three levels of assessment. Its processes up through Level 2, which were considered viable for single peak dents with smooth profiles, are the focus of Part...
A comprehensive survey on pipeline monitoring technologies: Advancements, challenges, market opportunities and future directions
September 2026
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...
Structural Performance and Design Implications of Cured-in-Place-Pipe liners Under Radial Compression
Available online 1 September 2026
Understanding the structural behavior of cured-in-place pipe (CIPP) liners under radial compression is essential for ensuring the long-term reliability of trenchless rehabilitation systems. This study...
A high-efficiency strategy for blending hydrogen into high-pressure natural gas pipelines: Mechanistic modeling and numerical analysis
Available online 1 September 2026
High-pressure hydrogen blending in natural gas pipelines is a key pathway for large-scale hydrogen utilization, while mixing uniformity directly affects pipeline safety and measurement accuracy and...
A Pipeline Reliability and Integrity Management System for leak detection, localization, and prevention in long-distance pipelines
Available online 1 September 2026
Leak detection and integrity management technologies are becoming increasingly critical in the mining industry due to the extensive use of long-distance slurry and water pipelines, their exposure to...
A Comparative study of hydrogen embrittlement susceptibility of L245MH and L360MH pipeline steels in high-pressure gaseous hydrogen
Available online 31 August 2026
The hydrogen embrittlement (HE) susceptibility of the L245MH and L360MH pipeline steels was evaluated in a 6.3 MPa high-pressure hydrogen environment, through slow strain rate tensile (SSRT) tests and...
Research on pressure characteristics and models of horizontal gathering pipelines for oil-gas-water during shutdown and restart
Available online 31 August 2026
•Reveals coupling mechanism of wall adhesion, phase change, and thixotropy, linking static thermal resistance to dynamic flow.•Builds integrated thermal-hydraulic model for synergistic prediction of...
A Prior-Based Adaptive Simulation Method for Natural Gas Networks under Irregular Supply–Demand Fluctuations
Available online 31 August 2026
•A boundary-excitation-aware adaptive time-stepping method (BEATS) is proposed.•Global time-step planning is achieved using complete boundary information.•Structural events and local fluctuations jointly...
Transient gravity-induced stratification of hydrogen–methane mixtures in pipeline systems: A coupled thermodynamic–transport and timescale analysis
Available online 31 August 2026
•Developed a coupled thermodynamic-transient transport framework for H₂–CH₄ mixtures in vertical pipelines.•Integrated Peng–Robinson EOS with gravitational drift and molecular diffusion.•Quantified<1.5%steady-state...
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...
