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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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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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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Supercritical/dense-phase CO2 pipeline leakage diffusion experiment and hazard distance prediction method
Available online 9 December 2024
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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Reliability Analysis of Slow Crack Growth in HDPE Pipes: Impact of Buried Pipeline Design and Soil Characteristics
Available online 3 December 2024
This study delves into one of the most common fracture mechanisms in polyethylene pipes and the primary cause of their long-term failure, the slow crack growth (SCG) phenomenon. This failure mode in...
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A Multi-level Classification Model for Corrosion defects in Oil and Gas Pipelines Using Meta-Learner Ensemble (MLE) Techniques
Available online 2 December 2024
The manuscript has potential highlights as addressed below:•A stacking ensemble method was developed to improve the prediction corrosion defect level using multiple classifiers and a logistic regression...
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Experimental Study on Overpressure and Flame Characteristics of Hydrogen-methane mixture
Available online 1 December 2024
In order to evaluate the consequences of hydrogen-methane mixture explosion accidents in open space and confined space, large-scale (8m3) open space and confined space (55m3) hydrogen-methane mixture...
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A burst capacity model for pipelines containing pinhole-in-corrosion defects
Available online 28 November 2024
This study develops a practical burst capacity model for oil and gas pipelines containing pinhole-in-corrosion (PIC) defects based on results of extensive parametric three-dimensional finite element...
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Crack assessment in spiral-welded pipelines repaired by composite patch: a SMART and failure assessment diagram approach
Available online 4 November 2024
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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Experimental and numerical investigation on hyperelastic sealing disc contact behavior in pipeline, a comparison between fluid-driven and pull-through approaches
Available online 1 November 2024
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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Enhanced Speed Control of Pipeline Pigs with Adjustable Bypass Using Quantitative Feedback Theory and Cascade PID Algorithm
Available online 28 October 2024
During pipeline pigging operations, precise control of the pig's running speed is crucial. However, external speed disturbances often occur during these operations. In response to this challenge, adjustments...
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Quantification of methane emissions from typical natural gas stations using on-site measurement technology
Available online 21 October 2024
•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
Available online 20 October 2024
It is difficult to detect and locate small leakages, especially for buried pipelines. Fortunately, a non-intrusive leakage identification method for buried gas pipelines is proposed in this study. Accelerometers...
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Extended Design Philosophy of Hydrogen Transport Pipelines
Available online 19 October 2024
This paper examines some specific design issues associated with hydrogen transportation via pipelines based on recent field development study of high-throughput hydrogen pipelines. A mechanical design...
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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
Available online 10 October 2024
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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FELA Evaluation of Uplift, Lateral and Inclined Capacity of Buried Pipeline in Layered Clays
Available online 10 October 2024
The offshore buried pipelines are prone to upheaval and lateral buckling due to the high temperature and pressure of the materials being transported. The pipeline placed on marine soil or buried in...
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