Quantification of methane emissions from typical natural gas stations using on-site measurement technology
June 2025
•Fugitive methane emission measurements at typical stations of the natural gas pipeline network using a hydrogen flame ionization detector and a high-flow methane tester.•There is a statistically significant...
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Experimental study on the leakage identification for the buried gas pipeline via vibration signals
June 2025
It is difficult to detect and locate small leakages, especially for buried pipelines. Therefore, a non-intrusive leakage identification method for buried gas pipelines is proposed in this study. Accelerometers...
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Experimental and numerical investigation on hyperelastic sealing disc contact behavior in pipeline, a comparison between fluid-driven and pull-through approaches
June 2025
Pipelines are widely recognized as the safest and most efficient means of fluid transportation. Pipeline pigging, a secure and reliable technique, is employed for both cleaning and sealing pipelines...
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Supercritical/dense-phase CO2 pipeline leakage diffusion experiment and hazard distance prediction method
June 2025
The study of the diffusion characteristics of CO2 leakage in pipelines and the determination of the hazardous distance resulting from such leakage under various working conditions are crucial for identifying...
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Study on scour stripping of oil-wax gels in pipes
March 2025
In this study, soft gel stripping experiments were conducted under different temperatures and flow velocity conditions by a flow loop. The flow area of pipes increased with an increase in flow velocity....
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Natural gas consumption forecasting using a novel two-stage model based on improved sparrow search algorithm
March 2025
The foundation of natural gas intelligent scheduling is the accurate prediction of natural gas consumption (NGC). However, its volatility, brings difficulties and challenges in accurately predicting...
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Experimental study of the full-scale burst failure behavior of carbon dioxide steel pipeline
March 2025
Carbon Capture, Utilization and Storage (CCUS) is an important strategic reserve technology to reduce CO2 emissions. Accelerating the application and development of CCUS technology is a realistic need...
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Data-driven multi-fault detection in pipelines utilizing frequency response function and artificial neural networks
March 2025
This research presents a data-driven structural health monitoring (SHM) approach for pipeline systems that leverages frequency response function (FRF) signals and artificial neural network (ANN) algorithms...
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Mechanical properties of the liner for strengthening steel pipe under the action of normal fault
March 2025
•A model of steel pipe repaired by liner under the action of fault is established.•The FE model is evaluated by test results.•The effect of each variable is studied.•The failure of the pipeline is ...
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A novel approach integrating the method of characteristics with large time-step scheme (MOC-LTS) for efficient transient flow simulation in liquid pipelines
March 2025
Water hammer incidents pose a significant risk to the safety and stability of pipeline operations. Therefore, rapid and precise transient flow simulation is essential for efficiently developing scientific...
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Crack assessment in spiral-welded pipelines repaired by composite patch: A SMART and failure assessment diagram approach
March 2025
This study presents a methodology for assessing cracks in spiral-welded pipelines (SWPs) repaired with composite sleeves, utilizing the Separating Morphing and Adaptive Remeshing Technique (SMART) for...
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Inhibition and co-condensation behaviour of 2-mercaptoethanol in top-of-line CO2 corrosion environments
March 2025
Top of line corrosion (TLC) is a significant problem in oil and gas transportation pipelines, leading to both economic and production loss. Conventional organic corrosion inhibitors typically fail to...
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An experimental investigation on the turbulent drag reduction effect of polyacrylamide solution in the loop pipe
Available online 11 February 2025
•The saturation concentration has been found and defined during polymer drag reduction in loop pipe.•A relationship among maximum drag reduction DRmax, Wi, polymer molecular weight and solution concentration...
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Study on the influence of operating parameters on the formation of methane hydrate in rotating packed bed
Available online 7 February 2025
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...
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Active Control of Natural Gas Pipeline System Based on Box-Jenkins Method
Available online 7 February 2025
•Developed a transient model for natural gas pipeline system.•Calibrated the model coefficients using operational data.•Established a state inversion control algorithm and a Linear Quadratic Regulator...
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Experimental analysis of waxy crude oil startup flow in pipelineS
Available online 5 February 2025
This study presents an experimental investigation into the startup flow of waxy crude oils in pipelines. An experimental rig was assembled with two syringe pumps connected to a 56.6-meter-long pipeline...
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Characterization of CTOA for Resistance to Pipeline Ductile Fracture Propagation
Available online 31 January 2025
In the present paper, the crack-tip opening angle (CTOA) data used by Jiao et al. are assessed to show that the CTOA-fracture speed data were in transient regions of different types of drop-weight tear...
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Effect of Phase Change on corrosion behavior of X65 Steel in CO2 transportation pipeline environment
Available online 29 January 2025
Phase change is inevitable in long-distance CO2 transport pipeline. In this study, an in-situ electrochemical noise monitoring device was constructed to study the effect of phase change on corrosion...
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An Algorithm for Third-Party Intrusion Action Detection in Oil and Gas Pipelines Based on Fine-Grained Feature Enhancement
Available online 27 January 2025
The extensive distribution of oil and gas pipeline networks across China results in frequent third-party intrusions in high-consequence areas, significantly increasing the risk of pipeline failures...
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A mechanistic model for flow accelerated corrosion prediction of a 90° carbon steel elbow in CO2 environments
Available online 16 January 2025
A mechanistic model for the prediction of CO2 flow accelerated corrosion (FAC) at a 90° carbon steel elbow is developed. Homogenous chemical reactions, electrochemical reactions at the metal/solution...
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Mechanical behavior of pipeline steel after strain aging. Part I: Experiment
Available online 15 January 2025
•After quenching and tempering Lüders strain is twice than after normalization•True uniform strain and strain hardening exponent proportionally decrease after strain aging•Changes in Lüders strain after...
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Experimental and mechanism study on the synergistic influence of asphaltene and pressure on the flow and rheological characteristics of waxy oil
Available online 14 January 2025
In underground reservoirs and offshore oilfields, the production and transportation of waxy oil inevitably involve pressure and asphaltene environment. However, the effect of asphaltene on the flow...
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Calculation for critical gas velocity of liquid accumulation in inclined pipelines: a method based on physics-informed neural network
Available online 9 January 2025
Liquid accumulation in gas pipelines will reduce transportation efficiency, increase corrosion rates, and induce severe slug flow. Calculation for critical gas velocity vcg of liquid accumulation in...
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Reliability analysis of gas pipelines considering spatial and temporal corrosion variability
Available online 7 January 2025
The accelerating deterioration rate, notably due to corrosion in buried gas pipelines, has prompted the development of a systematic methodology for assessing structural integrity. This study introduces...
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Research progress on dynamic crack propagation and crack arrest models of supercritical and dense-phase CO2 pipelines
Available online 5 January 2025
In the past decade, research on the propagation and arrest of CO2 pipeline fractures has achieved some results. This paper comprehensively reviews and evaluates the full-scale burst test, theoretical...
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