A Probabilistic Framework for Predicting Offshore Pipeline Failure under Corrosion: Integrating Semi-Empirical Models and Material Uncertainties
Available online 7 March 2026
This study presents a novel multi-scale probabilistic framework that couples microstructure-sensitive corrosion kinetics with Monte Carlo-based reliability analysis to predict failure behavior of offshore...
Pipeline-agent: A comprehensive decision support system for natural gas pipelines via verifiable computational reasoning
Available online 6 March 2026
Natural gas transmission networks require rapid operational decisions that integrate geographic information systems data, network topology, and time indexed measurements from operational systems. While...
PipeFormer: A physics-informed tokenized sparse transformer for natural gas pipeline networks
Available online 6 March 2026
Real time simulation is vital for the safety and optimal scheduling of natural gas pipeline networks. However, traditional numerical solvers are often too slow for rapid decision making, while previous...
Study on phase characteristics and impurity content of dense phase / supercritical CO2 system under pipeline transportation conditions
Available online 6 March 2026
•This paper optimizes the equation of state suitable for CO2 system containing impurities by experiments.•This paper reveals the influence mechanism of different impurities on the phase characteristics...
Sand transport characteristics and critical sand-carrying velocity of gas-water mixtures in wellbores during hydrate production
Available online 4 March 2026
•Sand transport mechanisms identified under multiphase flow.•Inclination angle strongly affects critical transport velocity.•Gas-liquid ratio alters sand suspension regimes....
An optimal control method for valve regulation based on Pontryagin’s principle in energy interconnection systems
Available online 3 March 2026
Traditional optimization-based scheduling for interconnected energiy systems is performed offline and produces static pre-schedules that may become suboptimal or even infeasible when real-time operating...
A Multi-Sensor Fusion and Feature Recognition Based Integrated Localization method for In-Pipe Inspection Robot
Available online 2 March 2026
Accurate positioning of In-Pipe Inspection robot is critical for the detection and localization of defects in subsea pipelines. This paper presents an integrated in-pipe navigation method that fuses...
Influence on Dynamic Fault Displacement on the Behavior of Buried HDPE Pipeline Crossing Faults
Available online 2 March 2026
Surface deformation from fault displacement threatens buried pipelines crossing fault zones. Previous studies often idealized fault displacement as a quasi-static load, neglecting dynamic rupture effects....
A Magnetic Flux Leakage Inspection Defect Identification Method for Hydrogen-Blended Pipelines Based on a Hybrid 1D-CNN-LSTM Neural Network
Available online 2 March 2026
Hydrogen-induced degradation phenomena, including hydrogen embrittlement and hydrogen-induced cracking, pose a significant threat to the structural integrity of carbon steel pipelines in high-pressure...
FPE‑YOLO: Real‑Time Small‑Object Detection for Third‑Party Intrusion in Oil and Gas Pipeline Integrity Monitoring
Available online 26 February 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.•FoveaAttention...
Synergistic Inhibition Effect of CO2 Hydrate Formation by L-Alanine and Sodium Chloride: Experimental Investigation and Mechanistic Insights
Available online 24 February 2026
•The inhibitory performance of alanine as a hydrate inhibitor was investigated. At a concentration of 0.6 wt%, alanine achieved the longest induction time and the lowest total gas consumption; specifically,...
Resolving Infeasibility and Optimizing Costs for Oil Resource Allocation: An Adaptive Parameter Modification Framework
Available online 22 February 2026
Against the backdrop of the global energy transition, the oil supply chain places higher demands on efficient resource allocation. Traditional optimization models often struggle in actual operational...
Peridynamic Analysis of Fracture Failure in Girth Welds of X80 Pipeline
Available online 15 February 2026
With the large-scale application of X80 high-grade, large-diameter, and high-pressure natural gas pipelines in China, girth weld regions are prone to fracture failure due to the deterioration of material...
Nonlinear buckling and experimental study on single layer contact of thin and long pipe columns in vertical pipes
Available online 11 February 2026
•A finite element mechanical model for buckling of single-layer contact tubing strings is established based on nonlinear beam element equilibrium equations and gap element theory.•Transient dynamics...
Dynamic Risk Assessment Framework for Offshore Pipelines Corrosion Under Insulation
Available online 7 February 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...
A review of data-driven leakage diagnosis methods across pipeline and energy transportation system
Available online 6 February 2026
The growing demand for energy transmission is driving the evolution of pipeline systems from single transmission to multifunctional, coupled energy transportation system (ETS). This increasing complexity,...
Knowledge graph construction for pipeline standards: Enhancing efficiency in the oil and gas industry
Available online 5 February 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...
Sensitivity to hydrogen induced cracking, and corrosion performance of an X65MS pipeline steel in H2S containing environment
January 2026
This study investigates the microstructure and hydrogen sulfide (H2S) corrosion resistance of X65MS acid-resistant pipeline steel, focusing on its susceptibility to hydrogen-induced cracking (HIC) and...
Thermal and residual stress distributions in butt fusion joints of HDPE pipes: FE simulation and experimental validation
January 2026
Butt fusion welding is widely applied for connecting high density polyethylene (HDPE) pipes but may generate residual stresses in the welded joints, interfering the bearing capacity and the service...
A critical and bibliometric review of life cycle cost analysis integration into decision support systems for pipeline asset integrity management
January 2026
•Maintaining pipeline integrity is essential for safety, environmental protection, and energy security.•Traditional pipeline management is reactive, leading to high costs, safety risks, and inefficiencies.•Life...
Natural gas demand prediction: comprehensive overview of the current situation and future development direction
January 2026
Natural gas demand (NGD) forecasting can accurately estimate the gas demand, and help to plan the gas source configuration, pipeline network transportation and gas storage arrangements in advance, so...
Study on the influence of operating parameters on the formation of methane hydrate in rotating packed bed
January 2026
The use of methane hydrate for offshore oilfield associated gas recovery is a very promising way of energy conservation and emission reduction, which is conducive to alleviating global warming. Rotating...
Investigation of cavitation damage patterns in centrifugal pump blades under rotating flow fields
January 2026
To investigate the damage caused by the collapse of cavitation bubbles on the centrifugal pumps impeller wall and to explore the relationship between these bubbles and cavitation pits in a rotating...
Evaluation and study of PBI reinforced with HDPE on abrasive wear using ANOVA and CODAS approach for protective shell applications
January 2026
Industrial applications often employ high density polyethylene (HDPE) as a bearing material due to its great wear resistance and low friction characteristics. Polybenzimidazole (PBI) reinforced HDPE...
Modeling and simulation analysis of bi-directional PIG based on the pseudo-rigid body model
January 2026
Pipeline inspection gauge (PIG) is essential to ensure the safe transportation of oil and gas pipelines. The sealing disc is an essential part of the bi-directional PIG. In a natural gas transmission...
