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ISSN: 2667-1433

Study on scour stripping of oil-wax gels in pipes

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

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

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

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

•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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Crack assessment in spiral-welded pipelines repaired by composite patch: A SMART and failure assessment diagram approach

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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Characterization of CTOA for Resistance to Pipeline Ductile Fracture Propagation

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

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

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

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

•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

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

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

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

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

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

•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

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

•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

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

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

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

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

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

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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