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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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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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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Mechanical properties of the liner for strengthening steel pipe under the action of normal fault
Available online 1 October 2024
•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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Study on the micro-mechanism of annealing treatment on the intermolecular action of waxy crude oil
September 2024
To investigate the influence mechanism of the annealing treatment on the intermolecular action of waxy crude oil, this study selected the molecular models of oil, wax, resin and asphaltene, and constructed...
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Machine learning application in batch scheduling for multi-product pipelines: A review
September 2024
Batch scheduling is a crucial part of pipeline enterprise operation management, especially in the context of market-oriented operation. It involves 3 main tasks: quickly preparing batch plans, accurately...
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Energy pipeline degradation condition assessment using predictive analytics – challenges, issues, and future directions
September 2024
It is of paramount importance to ensure the safe operation of energy pipelines for pipeline owners and operators. Therefore, effective condition assessment of pipelines is imperative. For this purpose,...
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Effect of brine salinity on the partitioning, distribution and corrosion inhibition performance of a quaternary amine corrosion inhibitor
September 2024
Surfactant corrosion inhibition performance in water–oil environments is influenced by complex relationships between their physical properties, solution chemistry and interfacial characteristics. The...
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Strain concentration factor at field joints for offshore concrete coated pipelines – Literature review
September 2024
This paper introduces a literature review of the accomplished research to calculate the strain concentration factor which shall be considered during the concrete coated subsea pipelines design. The...
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Analysis of the influence of girth weld strength matching on pipe deformation mode and failure pattern
September 2024
A theory model with two kinds of material, which are used to describe the axis stress strain relationship of the pipe segment and girth weld joints, is proposed for the pipeline axial deformation analysis,...
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A novel method for accurate pressure drop prediction in horizontal and near horizontal pipes using adaptive neuro fuzzy inference system based model
September 2024
Effective flow line and piping network design depends on the accurate prediction of pressure drop in multiphase flow for horizontal and near horizontal pipes. Since early 1950, several empirical correlations...
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Inhibition and co-condensation behaviour of 2-mercaptoethanol in top-of-line CO2 corrosion environments
Available online 17 September 2024
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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