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...
Effects of Corrosion Product Films on Hydrogen Embrittlement of X80 Steel
Available online 20 April 2026
•Corrosion product films (FeCO3, Fe2O3, FeS) hinder hydrogen permeation into X80 steel.•Hydrogen barrier effectiveness increases in the order: FeCO3 < Fe2O3 < FeS.•FeS-covered steel reduce hydrogen...
Finite Element Modeling Approaches for Predicting Strain Demand in Buried Pipelines Subjected to Landslides
Available online 20 April 2026
This study investigates how pipeline element type and pipe-soil interaction modeling affect longitudinal strain predictions for inelastic steel pipelines subjected to symmetric lateral landslide-induced...
Upheaval buckling of seabed buried pipelines with different types of nonlinear soil-pipeline interaction model
Available online 19 April 2026
•A finite element model is developed to simulate the upheaval buckling of buried submarine pipelines, accounting for diverse nonlinear soil-pipeline interaction models.•The effects of soil resistance...
Quantifying Environmental and Societal Risks in Aging Natural Gas Pipelines: A Dynamic Bayesian Framework for Impact Assessment and Resilience Planning
Available online 19 April 2026
Natural gas pipeline failures pose escalating threats to environmental integrity and community safety, particularly through soil contamination, toxic dispersions, and combustion explosions. This study...
Optimization of shale gas pipeline design parameters for multi period expansion considering dynamic operational conditions
Available online 17 April 2026
•Parameter Optimization Design for Shale Gas Pipeline Network Expansion.•Three Mixed-Integer Nonlinear Optimization Models.•A Hybrid Genetic Algorithm with Sequential Quadratic Programming (HGA-SQP)...
Multi-Strategy Coordinated Optimization of Large-Scale Crude Oil Gathering and Transportation Systems under Dynamic Conditions
Available online 15 April 2026
To resolve the acute trade-off between energy-intensive heating for flow assurance and wax deposition risks in high-water-cut heavy oil gathering, this study proposes a synergistic optimization framework...
Study on the Influence of Liquid-Nitrogen Cavitation Characteristics in Venturi Tube
Available online 15 April 2026
An improved Zwart-Gerber-Belamri model coupled with a k-ε turbulence closure was employed to simulate cryogenic cavitating flows in a Venturi tube. The influences of cavitation number, pressure ratio...
Full-scale physical modeling of buried pipelines subjected to rockfall impacts
Available online 15 April 2026
The failure of buried oil and gas pipelines in mountainous regions is often caused by rockfall impacts. While many studies have employed numerical simulations to investigate the interaction between...
A novel mechanistic model of low liquid loading gas-liquid stratified flow in horizontal pipes considering the effect of interfacial waves
Available online 13 April 2026
Low liquid loading gas-liquid stratified flow appears most frequently in wet gas gathering and transportation pipelines. This study devised a novel mechanistic model of low liquid loading gas-liquid...
Analytical Probability Distribution of Running Fracture Length in Transmission Pipelines with Crack Arrestors
Available online 13 April 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...
Finite Element Simulation and Failure Assessment of Corrosion Defect Growth in X65 Pipeline Steel under Mechano-electrochemical Coupling
Available online 13 April 2026
The safety implications of corrosion defects in oil, gas, and hydrogen pipelines represent a current research focus. However, most studies typically consider coupled mechano-electrochemical (M-E) interactions...
Investigation on the Mechanical Stability of Pipeline Hydrate Plugs Based on Particle flow Theory
Available online 7 April 2026
This study investigates the mechanical stability of hydrate plugs under fluid impact using Discrete Element Method (DEM) simulations based on particle flow theory. A cementation-strength gradient model...
Study on cleavage fracture mechanism in the heat-affected zone of X80 GMAW automatic girth weld
March 2026
Embrittlement of the heat-affected zone (HAZ) of girth weld has large effect on the service safety of high strength pipelines. In the present study, the cleavage fracture mechanism of X80 automatic...
Effect of hydrogen trap density on efficiency of irreversible traps in a line-pipe steel
March 2026
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...
Pipeline transportation strategy and key technological breakthroughs for high-quality development of hydrogen energy industry under the dual carbon goals
March 2026
China’s hydrogen scale-up hinges on resolving midstream bottlenecks that move volumes from resource-rich northern and western basins to demand-dense coastal corridors. A structured synthesis of policy,...
Factors influencing pipe stress responses in pipe jacking in bedrock: Field monitoring and numerical simulation
March 2026
To investigate the stress response of pipes during jacking in bedrock, longitudinal stresses of deep pipes were analyzed through field monitoring and numerical simulations conducted at various locations....
A simplified predictive model of thermal cycling on initiation of stress corrosion cracking
March 2026
This paper develops a simplified predictive model to investigate the role of thermal cycling in the evolution of corrosive environment for the initiation of stress corrosion cracking (SCC) on the external...
Composite repair of large size diameter pipe with severe metal loss defects
March 2026
A full-scale testing program was conducted to evaluate the use of carbon-epoxy composite repair technology to reinforce severe corrosion defects in large-diameter pipes. The technical elements associated...
Mechanical response of the pressure pipeline rehabilitated by polymer liner under the action of surface load
March 2026
The mechanical behavior of pressure pipelines rehabilitated with polymer liners under surface loads remains poorly understood. In this study, a three-dimensional model of a pressure pipeline repaired...
Insight into integrity and corrosion behaviour of damaged pipe casing L80 13-3/8″ schedule 40 under marine conditions: A preliminary study
March 2026
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...
Numerical simulation study on leakage and diffusion of medium and low pressure buried gas pipelines considering soil cavitation effect
March 2026
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...
Pipeline unidirectional guided wave generation based on a hybrid piezoelectric transducer ring and wave-packet modification
March 2026
For pipeline inspection, unidirectional guided waves are required to concentrate energy in a single propagation direction while suppressing backward-traveling components. Conventional time-delay methods...
Adaptability of simulation state equation of hydrogen-blended natural gas pipeline
March 2026
At present, hydrogen transportation in natural gas pipeline network is the main mode of hydrogen energy transportation. Accurate description of the physical parameters of mixed gas is the key to the...
Experimental data-driven streamlined approach for tampering detection in oil and gas pipelines
March 2026
Pipelines are essential links of the energy sector for transporting and distributing energy products across countries and from refineries to terminals. With the increasing value of energy products,...
