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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Lightweight visible damage detection algorithm for embedded systems applied to pipeline automation equipment
Available online 3 January 2025
This research is designed for low-power, cost-effective and high-performance pipeline defect inspection in embedded systems. The backbone of the algorithm, CSPHet, employs efficient combinatorial convolution...
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Development of a sectionalizing method for simulation of large-scale complicated natural gas pipeline networks
December 2024
•A sectionalizing method is developed for large-scale natural gas pipeline networks.•The key is to minimize the residuals of conservations at the connected nodes.•This method demonstrates a close match...
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Corrosion protection characteristics of doped magnetite layers on carbon steel surfaces in aqueous CO2 environments
December 2024
Magnetite (Fe3O4) corrosion product surface layers can limit uniform corrosion rates of carbon steel in aqueous carbon dioxide (CO2)-saturated environments. However, as Fe3O4 is a semiconductor, localised...
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The impact of spatial layout on safety risks of urban natural gas pipelines
December 2024
•This article investigates the influence of spatial layout on the safety risks associated with urban natural gas pipelines.•Barriers can impede the propagation of explosion overpressure, mitigating...
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Uniform and local degradation of epoxy-based powder coatings: Salt transport and accelerated exposure analysis
December 2024
The barrier performance of epoxy-based powder coatings for pipelines was evaluated through salt transport measurements through free-standing coating films and via cyclic testing of coated steel panels....
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A numerical study on hydrogen blending in natural gas pipeline by a T-Pipe
December 2024
In order to study the flow blending and transporting process of hydrogen that injects into the natural gas pipelines, a three-dimensional T-pipe blending model is established and the flow characteristics...
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A decision-making framework for scheduling of multiproduct pipeline under the fair opening
December 2024
To promote the fair opening of pipeline facilities and improve the utilization efficiency of infrastructure, Chinese government has implemented the pipe network reform by learning from the successful...
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Advances in intelligent identification of fiber-optic vibration signals in oil and gas pipelines
December 2024
Based on the principles and characteristics of distributed fiber optic monitoring technology, this paper introduces the current research progress in identifying fiber optic vibration signals in oil...
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Benzylamine as Volatile Corrosion Inhibitor for Top-of-the-Line Corrosion in Water-Hydrocarbon Co-Condensation Environment
Available online 23 December 2024
Volatile corrosion inhibitor (VCI) injection is a promising method employed to mitigate top-of-the-line corrosion (TLC) in wet gas pipelines. Amine is the most common type of VCI employed for TLC mitigation,...
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Enhancing pipeline system resilience: a reliability-centric approach
Available online 22 December 2024
Pipelines are the most widely used system for transporting liquid and gaseous energy materials, but throughout their lifespan, they are exposed to various detrimental factors, such as corrosion and...
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A New Model for Predicting Characteristics of the Near-Field Leakage in High-pressure CO2 Pipelines
Available online 22 December 2024
The safe transportation of carbon dioxide (CO₂) is crucial to the successful implementation of Carbon Capture, Utilization, and Storage (CCUS) projects. Accidental leaks in pipelines can pose significant...
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Research on multi-objective optimal route selection method for natural gas transmission pipeline
Available online 19 December 2024
By the end of 2022, the nation's natural gas pipeline network had reached 12.0 million kilometers, with projections suggesting an expansion to approximately 163,000 kilometers by 2025. This rapid growth,...
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CRA Clad Pipes: Do Their Benefits Justify Sole Selection?
Available online 13 December 2024
This article presents a case study of a gas leak at a girth weld on a subsea spool. The leak occurred 14 days after the pipeline's start-up. The pipeline in question was a 36-inch CRA clad pipeline,...
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A review of computer vision applications for asset inspection in the oil and gas Industry
Available online 10 December 2024
This review explores the current application of computer vision (CV) technologies in the inspection of pipelines within the oil and gas industry, highlighting the methodologies, challenges, and advancements...
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