Influence of Fe3C on corrosion inhibition efficiency of Benzyldimethylhexadecylammonium chloride: Galvanic Corrosion interaction and adsorption behaviour
May 2026
Corrosion products formation on carbon steel in oil and gas environments can induce galvanic corrosion and hinders corrosion inhibitor (CI) adsorption due to surface heterogeneities (i.e., roughness,...
Failure mechanism of sealing rubber exposed to supercritical CO₂ during rapid depressurization based on equivalent thermo-mechanical coupling damage model
May 2026
•An Equivalent thermo-mechanical coupling damage model is developed.•The S-CO2 diffusion, deformation and damage of rubber O-ring are studied.•S-CO₂ is more likely to cause damage to O-rings compared...
A numerical study on flow and heat transfer characteristics of the LNG storage tank feed pipeline
May 2026
As a low-carbon fuel, liquefied natural gas (LNG) requires strict temperature control during transportation. Direct injection into pipelines at ambient temperature induces significant thermal stress,...
Adaptability study of gas equations of state for the calculation of thermophysical parameters of hydrogen-blended natural gas
May 2026
•The adaptability of EoSs for predicting Joule-Thomson coefficient of hydrogen-blended natural gas is evaluated.•GERG-2008 demonstrates high accuracy and adaptability across various thermodynamic conditions.•BWRS-EoS...
Enhancing hydrogen pipeline safety: Perspectives on resilience against hydrogen-induced degradation
May 2026
Transport of hydrogen in blended form in existing natural gas pipelines contributes to the accelerated realization of a full-scale hydrogen economy. However, steel pipelines are considered susceptible...
Hydraulic transient analysis in low gas-liquid ratio pipelines under valve closure conditions: Pressure surge characteristics and predictive modeling
May 2026
•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...
Investigation of water displacement process in pipelines: An improved mechanistic model and its numerical implementation
May 2026
Multiphase flows are very common in industrial operations. In offshore oil and gas production, transient processes in long pipelines can lead to water accumulation, which must be removed using gas–oil...
Full-scale tests and numerical investigation on the bending strain failure of low-strength-matched X80 pipeline girth welds
May 2026
The fracture behavior and strain capacity of girth welds in large-diameter high-grade steel pipelines are crucial for their structural design and safe operation. This study conducts full-scale four-point...
A bibliometric review of hydrogen storage and transportation safety research
May 2026
Rising concerns over carbon emissions from fossil fuels have fueled interest in renewable energies. Hydrogen, as a clean energy source, stands out for its free of pollution and high calorific value....
Effect of soils reinforced with PET waste in reducing loads transferred to buried pipeline
May 2026
Buried pipelines need to limit the surface loads transferred on them in order to ensure trouble-free operation throughout their service life. The objective of this study was to evaluate the efficacy...
A comparative study on the effect of GMAW welding current on the performance of API 5 L GrB pipeline steel welds for oil and gas industrial applications
May 2026
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 5 L GrB...
Effect of Cr content on softening mechanism of the heat-affected zone of X80 GMAW automatic girth weld
May 2026
Softening of the heat-affected zone (HAZ) could lead to strain concentration in the girth weld joint, which endangers the service safety of high strength pipelines, while the chemical composition and...
Characterizing properties of pipeline girth welds: A novel testing protocol and validation
May 2026
Accurate, region-specific mechanical properties of pipeline girth welded joints are fundamental for structural safety design and integrity assessment. This study focuses on X80 pipeline girth welded...
Acoustic detection of gas pipeline leakage based on CPO-VMD and multi-feature extraction
May 2026
Detection of gas pipeline leaks is essential for energy security and environmental preservation. Non-contact detection can be accomplished by analyzing acoustic signals produced by gas leakage. Nonetheless,...
Study on the phenomena and mechanism of reformation during hydrate dissociation of N-vinyl caprolactam system in pipeline
May 2026
Natural gas hydrate blockage is a major threat to the flow safety of long-distance transmission pipelines in deep water. Although the addition of hydrate inhibitors can effectively mitigate hydrate...
Improved guided-wave acoustic defect detection and localization in pipes under varying temperature conditions using deep learning
May 2026
Early defect detection in pipelines is critical across industries, particularly in the oil and gas sector, where failures result in significant maintenance costs and operational disruptions. Acoustic...
Numerical Investigation of Ratcheting Strain in Mechanically Lined Pipes with Corrosion Defects Under Cyclic Loading
Available online 2 May 2026
•A 3D FE framework for ratcheting in mechanically lined pipes•Interfacial friction shows negligible effect on ratcheting strain•Corrosion defects strongly amplify localized ratcheting•Liner defects...
Research on the Risk Propagation Mechanism of Data-Driven Urban Gas Pipeline Network Leakage Accidents: Multi-Layer Hierarchical Interaction and Heterogeneous Propagation Characteristics
Available online 1 May 2026
As a critical infrastructure for urban energy supply, gas pipeline networks operate in complex and variable environments, being influenced by a multitude of intertwined factors. Consequently, accidents...
Predicting Strain Concentration Factor in Concrete-Coated Pipes Using a Surrogate Model and Machine Learning
Available online 30 April 2026
Concrete-coated pipelines are vital in subsea applications, offering stability against hydrodynamic forces and environmental stresses. Stiffness mismatches between the concrete coated section and the...
Prediction of Internal Corrosion in Oil and Gas Piping Systems—An Independent Analysis Using Machine Learning
Available online 29 April 2026
This work presents machine learning (ML) algorithm development and testing for internal corrosion rate prediction in oil and gas (O&G) piping systems. The ML models were trained using TWI’s dataset...
Progress in the flocculation and sedimentation mechanisms and jet mixing transportation of heavy components in crude oil storage tanks
Available online 28 April 2026
With the advancement of the “dual carbon” policy, crude oil storage tanks are increasingly adopting nonheated storage methods, which intensifies the flocculation and sedimentation of heavy components...
Dual Wet-Dry Gas Pipeline Networks Model and Optimization Method for Oilfield Gathering Systems
Available online 27 April 2026
•Station mass balance coupling framework for dual wet–dry gas networks.•Unified framework integrating mass balance, pressure safety, and binary gas-consumption decisions.•B-JADE with adaptive sigmoid...
Interpretable Viscosity Prediction of Waxy Crude Oils via Physics-guided Machine Learning
Available online 23 April 2026
•Physics-guided explainable ML framework for robust viscosity modeling.•XGBoost predicts viscosity using four parameters under dynamic conditions.•Interpretability reveals key factors and interactions...
Modeling Hydrate Particle Evolution and Bed Formation Using a Critical Suspension–PBM Coupled Framework in Stratified Multiphase Flows
Available online 23 April 2026
•Proposed bedded hydrate flow modelling method based on critical suspended particle size;•A multi-phase mixed-transport hydrate deposition model coupling generation, aggregation and deposition processes...
Combined treatment with D-amino acids and glutaraldehyde to control microbiologically influenced corrosion in pipeline joints
Available online 22 April 2026
•D. vulgaris corrosion of the pipeline joint is regionally selective.•D-amino acids slightly decrease the selectivity of D. vulgaris corrosion.•Glutaraldehyde inhibits the localized corrosion of the...
