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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Development of a Sectionalizing Method for Simulation of Large-Scale Complicated Natural Gas Pipeline Networks
Available online 2 July 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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Experimental study on the influence of asphaltenes with small dosage on the rheological and gelation behavior of waxy mixtures
June 2024
Asphaltene, the heaviest and most polar non-hydrocarbon component in crude oil, may interact with waxes and affect the flow and gelation behavior of waxy oils. To further study the effect of asphaltene...
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A methodology to determine the target reliability of natural gas pipeline systems based on risk acceptance criteria of pipelines
June 2024
The reliable operation of the natural gas pipeline system is directly related to natural gas supply security, and it is vital to determine the target reliability of the natural gas pipeline system when...
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Study of the nickel concentration effect on toughness and hydrogen embrittlement resistance of pipeline steel
June 2024
•The tensile toughness, impact toughness, and hydrogen embrittlement resistance of pipeline steel increase when Ni concentration is below 1 %, followed by a decrease when Ni is higher than 1 %.•When...
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Development of safe operation technology of crude oil pipeline in permafrost regions
June 2024
China Mohe‒Daqing Pipeline is the world first large diameter and positive temperature buried pipeline that crosses the unstable and discontinuous permafrost regions. The permafrost along the pipeline...
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Numerical investigation on oil leakage and migration from the accidental hole of tank wall in oil terminal of pipeline transportation system
June 2024
As a crucial component of the oil transportation system, the oil terminal (or oil tank farm) may often pose some serious threats and damage to the ecological environment and production safety for the...
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A systematic literature review on permanent ground deformation patterns imposed on buried steel pipelines
June 2024
Overtime, continuous research efforts have been devoted to investigating the effects of permanent ground deformation (PGD) on buried pipelines. These efforts have faced major uncertainties in the ground...
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A comprehensive review of polyethylene pipes: Failure mechanisms, performance models, inspection methods, and repair solutions
June 2024
•Polyethylene (PE) pipes account for up to 90–95 % of new gas distribution pipelines in Europe and the United States.•The failure of a PE pipe is a multivariate problem that can occur due to pre-existing...
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Corrosion Protection Characteristics of Doped Magnetite Layers on Carbon Steel Surfaces in Aqueous CO2 Environments
Available online 16 June 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 semi-conductor, localised...
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The impact of spatial layout on safety risks of urban natural gas pipelines
Available online 26 May 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
Available online 23 April 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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Strain Concentration Factor at Field Joints for Offshore Concrete Coated Pipelines - Literature Review
Available online 20 April 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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A Numerical Study on Hydrogen Blending in Natural Gas Pipeline by a T-Pipe
Available online 4 April 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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Evaluation and optimization of pipeline pricing strategies on oil product logistics in China
March 2024
•A framework is designed to assess the impact of pricing strategies on oil logistics.•The tactical logistics model is upgraded considering specific pricing strategies.•Five pipeline pricing strategies...
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A numerical study of the slurry erosion in 90° horizontal elbows
March 2024
The slurry erosion processes of horizontal elbows are investigated numerically using an Eulerian-Lagrangian method coupled with particle rebound and erosion model. First, a mechanical model for the...
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Estimation of deposit thickness in single-phase liquid flow pipeline using finite volume modelling
March 2024
A significant problem with liquid pipelines can be the internal deposition of wax, sediments, tuberculation and biofilms which results in decreased flow assurance of the pipelines and higher pumping...
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A machine learning regression approach for predicting uplift capacity of buried pipelines in anisotropic clays
March 2024
The uplift capacity of pipeline systems in geotechnical engineering is influenced by internal loading and external factors, making it a significant consideration in pipeline design problems. Previous...
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Data-driven model to predict burst pressure in the presence of interacting corrosion pits
March 2024
This paper presents a data-driven approach to predict the pipelines’ corrosion-induced Burst failure. In this approach, different aspects of pit growth progression and spatial distribution of pits are...
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Computational fluid dynamics driven mass transfer model for the prediction of CO2 corrosion in pipelines
March 2024
A novel, computational fluid dynamics (CFD) driven modelling methodology for predicting CO2 corrosion rates in pipelines is presented. CFD is used to provide accurate predictions of the viscous sublayer...
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Dent strain and stress analyses and implications concerning API RP 1183 - Part II: Examples of dent geometry and strain analyses during contact and re-rounding
March 2024
API Recommended Practice (RP) 1183 considers three levels of assessment. Its Level 1 and Level 2 processes were considered viable for single peak dents with smooth profiles. The RP deals with more complex...
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A decision-making framework for scheduling of multiproduct pipeline under the fair opening
Available online 30 March 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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